Merge branch 'update-toolchain'

Makefile

@@ -9,7 +9,6 @@ gotty: main.go server/*.go webtty/*.go backend/*.go Makefile
 docker: 
 	docker build . -t gotty-bash:$(VERSION)
 
-
 .PHONY: asset
 asset: bindata/static/js/gotty-bundle.js bindata/static/index.html bindata/static/favicon.png bindata/static/css/index.css bindata/static/css/xterm.css bindata/static/css/xterm_customize.css
 	go-bindata -prefix bindata -pkg server -ignore=\\.gitkeep -o server/asset.go bindata/...

go.sum

@@ -5,6 +5,7 @@ github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSY
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/creack/pty v1.1.7 h1:6pwm8kMQKCmgUg0ZHTm5+/YvRK0s3THD/28+T6/kk4A=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/elazarl/go-bindata-assetfs v1.0.0 h1:G/bYguwHIzWq9ZoyUQqrjTmJbbYn3j3CKKpKinvZLFk=
 github.com/elazarl/go-bindata-assetfs v1.0.0/go.mod h1:v+YaWX3bdea5J/mo8dSETolEo7R71Vk1u8bnjau5yw4=
@@ -20,12 +21,14 @@ github.com/kr/pty v1.1.8 h1:AkaSdXYQOWeaO3neb8EM634ahkXXe3jYbVh/F9lq+GI=
 github.com/kr/pty v1.1.8/go.mod h1:O1sed60cT9XZ5uDucP5qwvh+TE3NnUj51EiZO/lmSfw=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/russross/blackfriday/v2 v2.0.1 h1:lPqVAte+HuHNfhJ/0LC98ESWRz8afy9tM/0RK8m9o+Q=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5IYyJwS/kOiWx8mHo=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/urfave/cli v1.22.2 h1:gsqYFH8bb9ekPA12kRo0hfjngWQjkJPlN9R0N78BoUo=
 github.com/urfave/cli v1.22.2/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=

vendor/github.com/NYTimes/gziphandler/.gitignore

@@ -1 +0,0 @@
-*.swp

vendor/github.com/NYTimes/gziphandler/.travis.yml

@@ -1,10 +0,0 @@
-language: go
-go:
-  - 1.x
-  - tip
-env:
-  - GO111MODULE=on
-install:
-  - go mod download
-script:
-  - go test -race -v

vendor/github.com/NYTimes/gziphandler/CODE_OF_CONDUCT.md

@@ -1,75 +0,0 @@
----
-layout: code-of-conduct
-version: v1.0
----
-
-This code of conduct outlines our expectations for participants within the **NYTimes/gziphandler** community, as well as steps to reporting unacceptable behavior. We are committed to providing a welcoming and inspiring community for all and expect our code of conduct to be honored. Anyone who violates this code of conduct may be banned from the community.
-
-Our open source community strives to:
-
-* **Be friendly and patient.**
-* **Be welcoming**: We strive to be a community that welcomes and supports people of all backgrounds and identities. This includes, but is not limited to members of any race, ethnicity, culture, national origin, colour, immigration status, social and economic class, educational level, sex, sexual orientation, gender identity and expression, age, size, family status, political belief, religion, and mental and physical ability.
-* **Be considerate**: Your work will be used by other people, and you in turn will depend on the work of others. Any decision you take will affect users and colleagues, and you should take those consequences into account when making decisions. Remember that we're a world-wide community, so you might not be communicating in someone else's primary language.
-* **Be respectful**:  Not all of us will agree all the time, but disagreement is no excuse for poor behavior and poor manners. We might all experience some frustration now and then, but we cannot allow that frustration to turn into a personal attack. It’s important to remember that a community where people feel uncomfortable or threatened is not a productive one.
-* **Be careful in the words that we choose**: we are a community of professionals, and we conduct ourselves professionally. Be kind to others. Do not insult or put down other participants. Harassment and other exclusionary behavior aren't acceptable.
-* **Try to understand why we disagree**: Disagreements, both social and technical, happen all the time. It is important that we resolve disagreements and differing views constructively. Remember that we’re different. The strength of our community comes from its diversity, people from a wide range of backgrounds. Different people have different perspectives on issues. Being unable to understand why someone holds a viewpoint doesn’t mean that they’re wrong. Don’t forget that it is human to err and blaming each other doesn’t get us anywhere. Instead, focus on helping to resolve issues and learning from mistakes.
-
-## Definitions
-
-Harassment includes, but is not limited to:
-
-- Offensive comments related to gender, gender identity and expression, sexual orientation, disability, mental illness, neuro(a)typicality, physical appearance, body size, race, age, regional discrimination, political or religious affiliation
-- Unwelcome comments regarding a person’s lifestyle choices and practices, including those related to food, health, parenting, drugs, and employment
-- Deliberate misgendering. This includes deadnaming or persistently using a pronoun that does not correctly reflect a person's gender identity. You must address people by the name they give you when not addressing them by their username or handle
-- Physical contact and simulated physical contact (eg, textual descriptions like “*hug*” or “*backrub*”) without consent or after a request to stop
-- Threats of violence, both physical and psychological
-- Incitement of violence towards any individual, including encouraging a person to commit suicide or to engage in self-harm
-- Deliberate intimidation
-- Stalking or following
-- Harassing photography or recording, including logging online activity for harassment purposes
-- Sustained disruption of discussion
-- Unwelcome sexual attention, including gratuitous or off-topic sexual images or behaviour
-- Pattern of inappropriate social contact, such as requesting/assuming inappropriate levels of intimacy with others
-- Continued one-on-one communication after requests to cease
-- Deliberate “outing” of any aspect of a person’s identity without their consent except as necessary to protect others from intentional abuse
-- Publication of non-harassing private communication
-
-Our open source community prioritizes marginalized people’s safety over privileged people’s comfort. We will not act on complaints regarding:
-
-- ‘Reverse’ -isms, including ‘reverse racism,’ ‘reverse sexism,’ and ‘cisphobia’
-- Reasonable communication of boundaries, such as “leave me alone,” “go away,” or “I’m not discussing this with you”
-- Refusal to explain or debate social justice concepts
-- Communicating in a ‘tone’ you don’t find congenial
-- Criticizing racist, sexist, cissexist, or otherwise oppressive behavior or assumptions
-
-
-### Diversity Statement
-
-We encourage everyone to participate and are committed to building a community for all. Although we will fail at times, we seek to treat everyone both as fairly and equally as possible. Whenever a participant has made a mistake, we expect them to take responsibility for it. If someone has been harmed or offended, it is our responsibility to listen carefully and respectfully, and do our best to right the wrong.
-
-Although this list cannot be exhaustive, we explicitly honor diversity in age, gender, gender identity or expression, culture, ethnicity, language, national origin, political beliefs, profession, race, religion, sexual orientation, socioeconomic status, and technical ability. We will not tolerate discrimination based on any of the protected
-characteristics above, including participants with disabilities.
-
-### Reporting Issues
-
-If you experience or witness unacceptable behavior—or have any other concerns—please report it by contacting us via **code@nytimes.com**. All reports will be handled with discretion. In your report please include:
-
-- Your contact information.
-- Names (real, nicknames, or pseudonyms) of any individuals involved. If there are additional witnesses, please
-include them as well. Your account of what occurred, and if you believe the incident is ongoing. If there is a publicly available record (e.g. a mailing list archive or a public IRC logger), please include a link.
-- Any additional information that may be helpful.
-
-After filing a report, a representative will contact you personally, review the incident, follow up with any additional questions, and make a decision as to how to respond. If the person who is harassing you is part of the response team, they will recuse themselves from handling your incident. If the complaint originates from a member of the response team, it will be handled by a different member of the response team. We will respect confidentiality requests for the purpose of protecting victims of abuse.
-
-### Attribution & Acknowledgements
-
-We all stand on the shoulders of giants across many open source communities.  We'd like to thank the communities and projects that established code of conducts and diversity statements as our inspiration:
-
-* [Django](https://www.djangoproject.com/conduct/reporting/)
-* [Python](https://www.python.org/community/diversity/)
-* [Ubuntu](http://www.ubuntu.com/about/about-ubuntu/conduct)
-* [Contributor Covenant](http://contributor-covenant.org/)
-* [Geek Feminism](http://geekfeminism.org/about/code-of-conduct/)
-* [Citizen Code of Conduct](http://citizencodeofconduct.org/)
-
-This Code of Conduct was based on https://github.com/todogroup/opencodeofconduct

vendor/github.com/NYTimes/gziphandler/CONTRIBUTING.md

@@ -1,30 +0,0 @@
-# Contributing to NYTimes/gziphandler
-
-This is an open source project started by handful of developers at The New York Times and open to the entire Go community.
-
-We really appreciate your help!
-
-## Filing issues
-
-When filing an issue, make sure to answer these five questions:
-
-1. What version of Go are you using (`go version`)?
-2. What operating system and processor architecture are you using?
-3. What did you do?
-4. What did you expect to see?
-5. What did you see instead?
-
-## Contributing code
-
-Before submitting changes, please follow these guidelines:
-
-1. Check the open issues and pull requests for existing discussions.
-2. Open an issue to discuss a new feature.
-3. Write tests.
-4. Make sure code follows the ['Go Code Review Comments'](https://github.com/golang/go/wiki/CodeReviewComments).
-5. Make sure your changes pass `go test`.
-6. Make sure the entire test suite passes locally and on Travis CI.
-7. Open a Pull Request.
-8. [Squash your commits](http://gitready.com/advanced/2009/02/10/squashing-commits-with-rebase.html) after receiving feedback and add a [great commit message](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html).
-
-Unless otherwise noted, the gziphandler source files are distributed under the Apache 2.0-style license found in the LICENSE.md file.

vendor/github.com/NYTimes/gziphandler/LICENSE

@@ -1,201 +0,0 @@
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
-      exercising permissions granted by this License.
-
-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
-      source, and configuration files.
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-      transformation or translation of a Source form, including but
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-      "Work" shall mean the work of authorship, whether in Source or
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-      copyright notice that is included in or attached to the work
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-      communication on electronic mailing lists, source code control systems,
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-   2. Grant of Copyright License. Subject to the terms and conditions of
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-          include a readable copy of the attribution notices contained
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-          of the NOTICE file are for informational purposes only and
-          do not modify the License. You may add Your own attribution
-          notices within Derivative Works that You distribute, alongside
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-      You may add Your own copyright statement to Your modifications and
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-      for use, reproduction, or distribution of Your modifications, or
-      for any such Derivative Works as a whole, provided Your use,
-      reproduction, and distribution of the Work otherwise complies with
-      the conditions stated in this License.
-
-   5. Submission of Contributions. Unless You explicitly state otherwise,
-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
-
-   6. Trademarks. This License does not grant permission to use the trade
-      names, trademarks, service marks, or product names of the Licensor,
-      except as required for reasonable and customary use in describing the
-      origin of the Work and reproducing the content of the NOTICE file.
-
-   7. Disclaimer of Warranty. Unless required by applicable law or
-      agreed to in writing, Licensor provides the Work (and each
-      Contributor provides its Contributions) on an "AS IS" BASIS,
-      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-      implied, including, without limitation, any warranties or conditions
-      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
-      PARTICULAR PURPOSE. You are solely responsible for determining the
-      appropriateness of using or redistributing the Work and assume any
-      risks associated with Your exercise of permissions under this License.
-
-   8. Limitation of Liability. In no event and under no legal theory,
-      whether in tort (including negligence), contract, or otherwise,
-      unless required by applicable law (such as deliberate and grossly
-      negligent acts) or agreed to in writing, shall any Contributor be
-      liable to You for damages, including any direct, indirect, special,
-      incidental, or consequential damages of any character arising as a
-      result of this License or out of the use or inability to use the
-      Work (including but not limited to damages for loss of goodwill,
-      work stoppage, computer failure or malfunction, or any and all
-      other commercial damages or losses), even if such Contributor
-      has been advised of the possibility of such damages.
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-   9. Accepting Warranty or Additional Liability. While redistributing
-      the Work or Derivative Works thereof, You may choose to offer,
-      and charge a fee for, acceptance of support, warranty, indemnity,
-      or other liability obligations and/or rights consistent with this
-      License. However, in accepting such obligations, You may act only
-      on Your own behalf and on Your sole responsibility, not on behalf
-      of any other Contributor, and only if You agree to indemnify,
-      defend, and hold each Contributor harmless for any liability
-      incurred by, or claims asserted against, such Contributor by reason
-      of your accepting any such warranty or additional liability.
-
-   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "[]"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
-
-   Copyright 2016-2017 The New York Times Company
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.

vendor/github.com/NYTimes/gziphandler/README.md

@@ -1,56 +0,0 @@
-Gzip Handler
-============
-
-This is a tiny Go package which wraps HTTP handlers to transparently gzip the
-response body, for clients which support it. Although it's usually simpler to
-leave that to a reverse proxy (like nginx or Varnish), this package is useful
-when that's undesirable.
-
-## Install
-```bash
-go get -u github.com/NYTimes/gziphandler
-```
-
-## Usage
-
-Call `GzipHandler` with any handler (an object which implements the
-`http.Handler` interface), and it'll return a new handler which gzips the
-response. For example:
-
-```go
-package main
-
-import (
-	"io"
-	"net/http"
-	"github.com/NYTimes/gziphandler"
-)
-
-func main() {
-	withoutGz := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Content-Type", "text/plain")
-		io.WriteString(w, "Hello, World")
-	})
-
-	withGz := gziphandler.GzipHandler(withoutGz)
-
-	http.Handle("/", withGz)
-	http.ListenAndServe("0.0.0.0:8000", nil)
-}
-```
-
-
-## Documentation
-
-The docs can be found at [godoc.org][docs], as usual.
-
-
-## License
-
-[Apache 2.0][license].
-
-
-
-
-[docs]:     https://godoc.org/github.com/NYTimes/gziphandler
-[license]:  https://github.com/NYTimes/gziphandler/blob/master/LICENSE

vendor/github.com/NYTimes/gziphandler/go.mod

@@ -1,5 +0,0 @@
-module github.com/NYTimes/gziphandler
-
-go 1.11
-
-require github.com/stretchr/testify v1.3.0

vendor/github.com/NYTimes/gziphandler/go.sum

@@ -1,7 +0,0 @@
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=

vendor/github.com/NYTimes/gziphandler/gzip.go

@@ -1,532 +0,0 @@
-package gziphandler // import "github.com/NYTimes/gziphandler"
-
-import (
-	"bufio"
-	"compress/gzip"
-	"fmt"
-	"io"
-	"mime"
-	"net"
-	"net/http"
-	"strconv"
-	"strings"
-	"sync"
-)
-
-const (
-	vary            = "Vary"
-	acceptEncoding  = "Accept-Encoding"
-	contentEncoding = "Content-Encoding"
-	contentType     = "Content-Type"
-	contentLength   = "Content-Length"
-)
-
-type codings map[string]float64
-
-const (
-	// DefaultQValue is the default qvalue to assign to an encoding if no explicit qvalue is set.
-	// This is actually kind of ambiguous in RFC 2616, so hopefully it's correct.
-	// The examples seem to indicate that it is.
-	DefaultQValue = 1.0
-
-	// DefaultMinSize is the default minimum size until we enable gzip compression.
-	// 1500 bytes is the MTU size for the internet since that is the largest size allowed at the network layer.
-	// If you take a file that is 1300 bytes and compress it to 800 bytes, it’s still transmitted in that same 1500 byte packet regardless, so you’ve gained nothing.
-	// That being the case, you should restrict the gzip compression to files with a size greater than a single packet, 1400 bytes (1.4KB) is a safe value.
-	DefaultMinSize = 1400
-)
-
-// gzipWriterPools stores a sync.Pool for each compression level for reuse of
-// gzip.Writers. Use poolIndex to covert a compression level to an index into
-// gzipWriterPools.
-var gzipWriterPools [gzip.BestCompression - gzip.BestSpeed + 2]*sync.Pool
-
-func init() {
-	for i := gzip.BestSpeed; i <= gzip.BestCompression; i++ {
-		addLevelPool(i)
-	}
-	addLevelPool(gzip.DefaultCompression)
-}
-
-// poolIndex maps a compression level to its index into gzipWriterPools. It
-// assumes that level is a valid gzip compression level.
-func poolIndex(level int) int {
-	// gzip.DefaultCompression == -1, so we need to treat it special.
-	if level == gzip.DefaultCompression {
-		return gzip.BestCompression - gzip.BestSpeed + 1
-	}
-	return level - gzip.BestSpeed
-}
-
-func addLevelPool(level int) {
-	gzipWriterPools[poolIndex(level)] = &sync.Pool{
-		New: func() interface{} {
-			// NewWriterLevel only returns error on a bad level, we are guaranteeing
-			// that this will be a valid level so it is okay to ignore the returned
-			// error.
-			w, _ := gzip.NewWriterLevel(nil, level)
-			return w
-		},
-	}
-}
-
-// GzipResponseWriter provides an http.ResponseWriter interface, which gzips
-// bytes before writing them to the underlying response. This doesn't close the
-// writers, so don't forget to do that.
-// It can be configured to skip response smaller than minSize.
-type GzipResponseWriter struct {
-	http.ResponseWriter
-	index int // Index for gzipWriterPools.
-	gw    *gzip.Writer
-
-	code int // Saves the WriteHeader value.
-
-	minSize int    // Specifed the minimum response size to gzip. If the response length is bigger than this value, it is compressed.
-	buf     []byte // Holds the first part of the write before reaching the minSize or the end of the write.
-	ignore  bool   // If true, then we immediately passthru writes to the underlying ResponseWriter.
-
-	contentTypes []parsedContentType // Only compress if the response is one of these content-types. All are accepted if empty.
-}
-
-type GzipResponseWriterWithCloseNotify struct {
-	*GzipResponseWriter
-}
-
-func (w GzipResponseWriterWithCloseNotify) CloseNotify() <-chan bool {
-	return w.ResponseWriter.(http.CloseNotifier).CloseNotify()
-}
-
-// Write appends data to the gzip writer.
-func (w *GzipResponseWriter) Write(b []byte) (int, error) {
-	// GZIP responseWriter is initialized. Use the GZIP responseWriter.
-	if w.gw != nil {
-		return w.gw.Write(b)
-	}
-
-	// If we have already decided not to use GZIP, immediately passthrough.
-	if w.ignore {
-		return w.ResponseWriter.Write(b)
-	}
-
-	// Save the write into a buffer for later use in GZIP responseWriter (if content is long enough) or at close with regular responseWriter.
-	// On the first write, w.buf changes from nil to a valid slice
-	w.buf = append(w.buf, b...)
-
-	var (
-		cl, _ = strconv.Atoi(w.Header().Get(contentLength))
-		ct    = w.Header().Get(contentType)
-		ce    = w.Header().Get(contentEncoding)
-	)
-	// Only continue if they didn't already choose an encoding or a known unhandled content length or type.
-	if ce == "" && (cl == 0 || cl >= w.minSize) && (ct == "" || handleContentType(w.contentTypes, ct)) {
-		// If the current buffer is less than minSize and a Content-Length isn't set, then wait until we have more data.
-		if len(w.buf) < w.minSize && cl == 0 {
-			return len(b), nil
-		}
-		// If the Content-Length is larger than minSize or the current buffer is larger than minSize, then continue.
-		if cl >= w.minSize || len(w.buf) >= w.minSize {
-			// If a Content-Type wasn't specified, infer it from the current buffer.
-			if ct == "" {
-				ct = http.DetectContentType(w.buf)
-				w.Header().Set(contentType, ct)
-			}
-			// If the Content-Type is acceptable to GZIP, initialize the GZIP writer.
-			if handleContentType(w.contentTypes, ct) {
-				if err := w.startGzip(); err != nil {
-					return 0, err
-				}
-				return len(b), nil
-			}
-		}
-	}
-	// If we got here, we should not GZIP this response.
-	if err := w.startPlain(); err != nil {
-		return 0, err
-	}
-	return len(b), nil
-}
-
-// startGzip initializes a GZIP writer and writes the buffer.
-func (w *GzipResponseWriter) startGzip() error {
-	// Set the GZIP header.
-	w.Header().Set(contentEncoding, "gzip")
-
-	// if the Content-Length is already set, then calls to Write on gzip
-	// will fail to set the Content-Length header since its already set
-	// See: https://github.com/golang/go/issues/14975.
-	w.Header().Del(contentLength)
-
-	// Write the header to gzip response.
-	if w.code != 0 {
-		w.ResponseWriter.WriteHeader(w.code)
-		// Ensure that no other WriteHeader's happen
-		w.code = 0
-	}
-
-	// Initialize and flush the buffer into the gzip response if there are any bytes.
-	// If there aren't any, we shouldn't initialize it yet because on Close it will
-	// write the gzip header even if nothing was ever written.
-	if len(w.buf) > 0 {
-		// Initialize the GZIP response.
-		w.init()
-		n, err := w.gw.Write(w.buf)
-
-		// This should never happen (per io.Writer docs), but if the write didn't
-		// accept the entire buffer but returned no specific error, we have no clue
-		// what's going on, so abort just to be safe.
-		if err == nil && n < len(w.buf) {
-			err = io.ErrShortWrite
-		}
-		return err
-	}
-	return nil
-}
-
-// startPlain writes to sent bytes and buffer the underlying ResponseWriter without gzip.
-func (w *GzipResponseWriter) startPlain() error {
-	if w.code != 0 {
-		w.ResponseWriter.WriteHeader(w.code)
-		// Ensure that no other WriteHeader's happen
-		w.code = 0
-	}
-	w.ignore = true
-	// If Write was never called then don't call Write on the underlying ResponseWriter.
-	if w.buf == nil {
-		return nil
-	}
-	n, err := w.ResponseWriter.Write(w.buf)
-	w.buf = nil
-	// This should never happen (per io.Writer docs), but if the write didn't
-	// accept the entire buffer but returned no specific error, we have no clue
-	// what's going on, so abort just to be safe.
-	if err == nil && n < len(w.buf) {
-		err = io.ErrShortWrite
-	}
-	return err
-}
-
-// WriteHeader just saves the response code until close or GZIP effective writes.
-func (w *GzipResponseWriter) WriteHeader(code int) {
-	if w.code == 0 {
-		w.code = code
-	}
-}
-
-// init graps a new gzip writer from the gzipWriterPool and writes the correct
-// content encoding header.
-func (w *GzipResponseWriter) init() {
-	// Bytes written during ServeHTTP are redirected to this gzip writer
-	// before being written to the underlying response.
-	gzw := gzipWriterPools[w.index].Get().(*gzip.Writer)
-	gzw.Reset(w.ResponseWriter)
-	w.gw = gzw
-}
-
-// Close will close the gzip.Writer and will put it back in the gzipWriterPool.
-func (w *GzipResponseWriter) Close() error {
-	if w.ignore {
-		return nil
-	}
-
-	if w.gw == nil {
-		// GZIP not triggered yet, write out regular response.
-		err := w.startPlain()
-		// Returns the error if any at write.
-		if err != nil {
-			err = fmt.Errorf("gziphandler: write to regular responseWriter at close gets error: %q", err.Error())
-		}
-		return err
-	}
-
-	err := w.gw.Close()
-	gzipWriterPools[w.index].Put(w.gw)
-	w.gw = nil
-	return err
-}
-
-// Flush flushes the underlying *gzip.Writer and then the underlying
-// http.ResponseWriter if it is an http.Flusher. This makes GzipResponseWriter
-// an http.Flusher.
-func (w *GzipResponseWriter) Flush() {
-	if w.gw == nil && !w.ignore {
-		// Only flush once startGzip or startPlain has been called.
-		//
-		// Flush is thus a no-op until we're certain whether a plain
-		// or gzipped response will be served.
-		return
-	}
-
-	if w.gw != nil {
-		w.gw.Flush()
-	}
-
-	if fw, ok := w.ResponseWriter.(http.Flusher); ok {
-		fw.Flush()
-	}
-}
-
-// Hijack implements http.Hijacker. If the underlying ResponseWriter is a
-// Hijacker, its Hijack method is returned. Otherwise an error is returned.
-func (w *GzipResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
-	if hj, ok := w.ResponseWriter.(http.Hijacker); ok {
-		return hj.Hijack()
-	}
-	return nil, nil, fmt.Errorf("http.Hijacker interface is not supported")
-}
-
-// verify Hijacker interface implementation
-var _ http.Hijacker = &GzipResponseWriter{}
-
-// MustNewGzipLevelHandler behaves just like NewGzipLevelHandler except that in
-// an error case it panics rather than returning an error.
-func MustNewGzipLevelHandler(level int) func(http.Handler) http.Handler {
-	wrap, err := NewGzipLevelHandler(level)
-	if err != nil {
-		panic(err)
-	}
-	return wrap
-}
-
-// NewGzipLevelHandler returns a wrapper function (often known as middleware)
-// which can be used to wrap an HTTP handler to transparently gzip the response
-// body if the client supports it (via the Accept-Encoding header). Responses will
-// be encoded at the given gzip compression level. An error will be returned only
-// if an invalid gzip compression level is given, so if one can ensure the level
-// is valid, the returned error can be safely ignored.
-func NewGzipLevelHandler(level int) (func(http.Handler) http.Handler, error) {
-	return NewGzipLevelAndMinSize(level, DefaultMinSize)
-}
-
-// NewGzipLevelAndMinSize behave as NewGzipLevelHandler except it let the caller
-// specify the minimum size before compression.
-func NewGzipLevelAndMinSize(level, minSize int) (func(http.Handler) http.Handler, error) {
-	return GzipHandlerWithOpts(CompressionLevel(level), MinSize(minSize))
-}
-
-func GzipHandlerWithOpts(opts ...option) (func(http.Handler) http.Handler, error) {
-	c := &config{
-		level:   gzip.DefaultCompression,
-		minSize: DefaultMinSize,
-	}
-
-	for _, o := range opts {
-		o(c)
-	}
-
-	if err := c.validate(); err != nil {
-		return nil, err
-	}
-
-	return func(h http.Handler) http.Handler {
-		index := poolIndex(c.level)
-
-		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			w.Header().Add(vary, acceptEncoding)
-			if acceptsGzip(r) {
-				gw := &GzipResponseWriter{
-					ResponseWriter: w,
-					index:          index,
-					minSize:        c.minSize,
-					contentTypes:   c.contentTypes,
-				}
-				defer gw.Close()
-
-				if _, ok := w.(http.CloseNotifier); ok {
-					gwcn := GzipResponseWriterWithCloseNotify{gw}
-					h.ServeHTTP(gwcn, r)
-				} else {
-					h.ServeHTTP(gw, r)
-				}
-
-			} else {
-				h.ServeHTTP(w, r)
-			}
-		})
-	}, nil
-}
-
-// Parsed representation of one of the inputs to ContentTypes.
-// See https://golang.org/pkg/mime/#ParseMediaType
-type parsedContentType struct {
-	mediaType string
-	params    map[string]string
-}
-
-// equals returns whether this content type matches another content type.
-func (pct parsedContentType) equals(mediaType string, params map[string]string) bool {
-	if pct.mediaType != mediaType {
-		return false
-	}
-	// if pct has no params, don't care about other's params
-	if len(pct.params) == 0 {
-		return true
-	}
-
-	// if pct has any params, they must be identical to other's.
-	if len(pct.params) != len(params) {
-		return false
-	}
-	for k, v := range pct.params {
-		if w, ok := params[k]; !ok || v != w {
-			return false
-		}
-	}
-	return true
-}
-
-// Used for functional configuration.
-type config struct {
-	minSize      int
-	level        int
-	contentTypes []parsedContentType
-}
-
-func (c *config) validate() error {
-	if c.level != gzip.DefaultCompression && (c.level < gzip.BestSpeed || c.level > gzip.BestCompression) {
-		return fmt.Errorf("invalid compression level requested: %d", c.level)
-	}
-
-	if c.minSize < 0 {
-		return fmt.Errorf("minimum size must be more than zero")
-	}
-
-	return nil
-}
-
-type option func(c *config)
-
-func MinSize(size int) option {
-	return func(c *config) {
-		c.minSize = size
-	}
-}
-
-func CompressionLevel(level int) option {
-	return func(c *config) {
-		c.level = level
-	}
-}
-
-// ContentTypes specifies a list of content types to compare
-// the Content-Type header to before compressing. If none
-// match, the response will be returned as-is.
-//
-// Content types are compared in a case-insensitive, whitespace-ignored
-// manner.
-//
-// A MIME type without any other directive will match a content type
-// that has the same MIME type, regardless of that content type's other
-// directives. I.e., "text/html" will match both "text/html" and
-// "text/html; charset=utf-8".
-//
-// A MIME type with any other directive will only match a content type
-// that has the same MIME type and other directives. I.e.,
-// "text/html; charset=utf-8" will only match "text/html; charset=utf-8".
-//
-// By default, responses are gzipped regardless of
-// Content-Type.
-func ContentTypes(types []string) option {
-	return func(c *config) {
-		c.contentTypes = []parsedContentType{}
-		for _, v := range types {
-			mediaType, params, err := mime.ParseMediaType(v)
-			if err == nil {
-				c.contentTypes = append(c.contentTypes, parsedContentType{mediaType, params})
-			}
-		}
-	}
-}
-
-// GzipHandler wraps an HTTP handler, to transparently gzip the response body if
-// the client supports it (via the Accept-Encoding header). This will compress at
-// the default compression level.
-func GzipHandler(h http.Handler) http.Handler {
-	wrapper, _ := NewGzipLevelHandler(gzip.DefaultCompression)
-	return wrapper(h)
-}
-
-// acceptsGzip returns true if the given HTTP request indicates that it will
-// accept a gzipped response.
-func acceptsGzip(r *http.Request) bool {
-	acceptedEncodings, _ := parseEncodings(r.Header.Get(acceptEncoding))
-	return acceptedEncodings["gzip"] > 0.0
-}
-
-// returns true if we've been configured to compress the specific content type.
-func handleContentType(contentTypes []parsedContentType, ct string) bool {
-	// If contentTypes is empty we handle all content types.
-	if len(contentTypes) == 0 {
-		return true
-	}
-
-	mediaType, params, err := mime.ParseMediaType(ct)
-	if err != nil {
-		return false
-	}
-
-	for _, c := range contentTypes {
-		if c.equals(mediaType, params) {
-			return true
-		}
-	}
-
-	return false
-}
-
-// parseEncodings attempts to parse a list of codings, per RFC 2616, as might
-// appear in an Accept-Encoding header. It returns a map of content-codings to
-// quality values, and an error containing the errors encountered. It's probably
-// safe to ignore those, because silently ignoring errors is how the internet
-// works.
-//
-// See: http://tools.ietf.org/html/rfc2616#section-14.3.
-func parseEncodings(s string) (codings, error) {
-	c := make(codings)
-	var e []string
-
-	for _, ss := range strings.Split(s, ",") {
-		coding, qvalue, err := parseCoding(ss)
-
-		if err != nil {
-			e = append(e, err.Error())
-		} else {
-			c[coding] = qvalue
-		}
-	}
-
-	// TODO (adammck): Use a proper multi-error struct, so the individual errors
-	//                 can be extracted if anyone cares.
-	if len(e) > 0 {
-		return c, fmt.Errorf("errors while parsing encodings: %s", strings.Join(e, ", "))
-	}
-
-	return c, nil
-}
-
-// parseCoding parses a single conding (content-coding with an optional qvalue),
-// as might appear in an Accept-Encoding header. It attempts to forgive minor
-// formatting errors.
-func parseCoding(s string) (coding string, qvalue float64, err error) {
-	for n, part := range strings.Split(s, ";") {
-		part = strings.TrimSpace(part)
-		qvalue = DefaultQValue
-
-		if n == 0 {
-			coding = strings.ToLower(part)
-		} else if strings.HasPrefix(part, "q=") {
-			qvalue, err = strconv.ParseFloat(strings.TrimPrefix(part, "q="), 64)
-
-			if qvalue < 0.0 {
-				qvalue = 0.0
-			} else if qvalue > 1.0 {
-				qvalue = 1.0
-			}
-		}
-	}
-
-	if coding == "" {
-		err = fmt.Errorf("empty content-coding")
-	}
-
-	return
-}

vendor/github.com/NYTimes/gziphandler/gzip_go18.go

@@ -1,43 +0,0 @@
-// +build go1.8
-
-package gziphandler
-
-import "net/http"
-
-// Push initiates an HTTP/2 server push.
-// Push returns ErrNotSupported if the client has disabled push or if push
-// is not supported on the underlying connection.
-func (w *GzipResponseWriter) Push(target string, opts *http.PushOptions) error {
-	pusher, ok := w.ResponseWriter.(http.Pusher)
-	if ok && pusher != nil {
-		return pusher.Push(target, setAcceptEncodingForPushOptions(opts))
-	}
-	return http.ErrNotSupported
-}
-
-// setAcceptEncodingForPushOptions sets "Accept-Encoding" : "gzip" for PushOptions without overriding existing headers.
-func setAcceptEncodingForPushOptions(opts *http.PushOptions) *http.PushOptions {
-
-	if opts == nil {
-		opts = &http.PushOptions{
-			Header: http.Header{
-				acceptEncoding: []string{"gzip"},
-			},
-		}
-		return opts
-	}
-
-	if opts.Header == nil {
-		opts.Header = http.Header{
-			acceptEncoding: []string{"gzip"},
-		}
-		return opts
-	}
-
-	if encoding := opts.Header.Get(acceptEncoding); encoding == "" {
-		opts.Header.Add(acceptEncoding, "gzip")
-		return opts
-	}
-
-	return opts
-}

vendor/github.com/cpuguy83/go-md2man/v2/LICENSE.md

@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Brian Goff
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

vendor/github.com/cpuguy83/go-md2man/v2/md2man/md2man.go

@@ -1,14 +0,0 @@
-package md2man
-
-import (
-	"github.com/russross/blackfriday/v2"
-)
-
-// Render converts a markdown document into a roff formatted document.
-func Render(doc []byte) []byte {
-	renderer := NewRoffRenderer()
-
-	return blackfriday.Run(doc,
-		[]blackfriday.Option{blackfriday.WithRenderer(renderer),
-			blackfriday.WithExtensions(renderer.GetExtensions())}...)
-}

vendor/github.com/cpuguy83/go-md2man/v2/md2man/roff.go

@@ -1,345 +0,0 @@
-package md2man
-
-import (
-	"fmt"
-	"io"
-	"os"
-	"strings"
-
-	"github.com/russross/blackfriday/v2"
-)
-
-// roffRenderer implements the blackfriday.Renderer interface for creating
-// roff format (manpages) from markdown text
-type roffRenderer struct {
-	extensions   blackfriday.Extensions
-	listCounters []int
-	firstHeader  bool
-	defineTerm   bool
-	listDepth    int
-}
-
-const (
-	titleHeader      = ".TH "
-	topLevelHeader   = "\n\n.SH "
-	secondLevelHdr   = "\n.SH "
-	otherHeader      = "\n.SS "
-	crTag            = "\n"
-	emphTag          = "\\fI"
-	emphCloseTag     = "\\fP"
-	strongTag        = "\\fB"
-	strongCloseTag   = "\\fP"
-	breakTag         = "\n.br\n"
-	paraTag          = "\n.PP\n"
-	hruleTag         = "\n.ti 0\n\\l'\\n(.lu'\n"
-	linkTag          = "\n\\[la]"
-	linkCloseTag     = "\\[ra]"
-	codespanTag      = "\\fB\\fC"
-	codespanCloseTag = "\\fR"
-	codeTag          = "\n.PP\n.RS\n\n.nf\n"
-	codeCloseTag     = "\n.fi\n.RE\n"
-	quoteTag         = "\n.PP\n.RS\n"
-	quoteCloseTag    = "\n.RE\n"
-	listTag          = "\n.RS\n"
-	listCloseTag     = "\n.RE\n"
-	arglistTag       = "\n.TP\n"
-	tableStart       = "\n.TS\nallbox;\n"
-	tableEnd         = ".TE\n"
-	tableCellStart   = "T{\n"
-	tableCellEnd     = "\nT}\n"
-)
-
-// NewRoffRenderer creates a new blackfriday Renderer for generating roff documents
-// from markdown
-func NewRoffRenderer() *roffRenderer { // nolint: golint
-	var extensions blackfriday.Extensions
-
-	extensions |= blackfriday.NoIntraEmphasis
-	extensions |= blackfriday.Tables
-	extensions |= blackfriday.FencedCode
-	extensions |= blackfriday.SpaceHeadings
-	extensions |= blackfriday.Footnotes
-	extensions |= blackfriday.Titleblock
-	extensions |= blackfriday.DefinitionLists
-	return &roffRenderer{
-		extensions: extensions,
-	}
-}
-
-// GetExtensions returns the list of extensions used by this renderer implementation
-func (r *roffRenderer) GetExtensions() blackfriday.Extensions {
-	return r.extensions
-}
-
-// RenderHeader handles outputting the header at document start
-func (r *roffRenderer) RenderHeader(w io.Writer, ast *blackfriday.Node) {
-	// disable hyphenation
-	out(w, ".nh\n")
-}
-
-// RenderFooter handles outputting the footer at the document end; the roff
-// renderer has no footer information
-func (r *roffRenderer) RenderFooter(w io.Writer, ast *blackfriday.Node) {
-}
-
-// RenderNode is called for each node in a markdown document; based on the node
-// type the equivalent roff output is sent to the writer
-func (r *roffRenderer) RenderNode(w io.Writer, node *blackfriday.Node, entering bool) blackfriday.WalkStatus {
-
-	var walkAction = blackfriday.GoToNext
-
-	switch node.Type {
-	case blackfriday.Text:
-		r.handleText(w, node, entering)
-	case blackfriday.Softbreak:
-		out(w, crTag)
-	case blackfriday.Hardbreak:
-		out(w, breakTag)
-	case blackfriday.Emph:
-		if entering {
-			out(w, emphTag)
-		} else {
-			out(w, emphCloseTag)
-		}
-	case blackfriday.Strong:
-		if entering {
-			out(w, strongTag)
-		} else {
-			out(w, strongCloseTag)
-		}
-	case blackfriday.Link:
-		if !entering {
-			out(w, linkTag+string(node.LinkData.Destination)+linkCloseTag)
-		}
-	case blackfriday.Image:
-		// ignore images
-		walkAction = blackfriday.SkipChildren
-	case blackfriday.Code:
-		out(w, codespanTag)
-		escapeSpecialChars(w, node.Literal)
-		out(w, codespanCloseTag)
-	case blackfriday.Document:
-		break
-	case blackfriday.Paragraph:
-		// roff .PP markers break lists
-		if r.listDepth > 0 {
-			return blackfriday.GoToNext
-		}
-		if entering {
-			out(w, paraTag)
-		} else {
-			out(w, crTag)
-		}
-	case blackfriday.BlockQuote:
-		if entering {
-			out(w, quoteTag)
-		} else {
-			out(w, quoteCloseTag)
-		}
-	case blackfriday.Heading:
-		r.handleHeading(w, node, entering)
-	case blackfriday.HorizontalRule:
-		out(w, hruleTag)
-	case blackfriday.List:
-		r.handleList(w, node, entering)
-	case blackfriday.Item:
-		r.handleItem(w, node, entering)
-	case blackfriday.CodeBlock:
-		out(w, codeTag)
-		escapeSpecialChars(w, node.Literal)
-		out(w, codeCloseTag)
-	case blackfriday.Table:
-		r.handleTable(w, node, entering)
-	case blackfriday.TableCell:
-		r.handleTableCell(w, node, entering)
-	case blackfriday.TableHead:
-	case blackfriday.TableBody:
-	case blackfriday.TableRow:
-		// no action as cell entries do all the nroff formatting
-		return blackfriday.GoToNext
-	default:
-		fmt.Fprintln(os.Stderr, "WARNING: go-md2man does not handle node type "+node.Type.String())
-	}
-	return walkAction
-}
-
-func (r *roffRenderer) handleText(w io.Writer, node *blackfriday.Node, entering bool) {
-	var (
-		start, end string
-	)
-	// handle special roff table cell text encapsulation
-	if node.Parent.Type == blackfriday.TableCell {
-		if len(node.Literal) > 30 {
-			start = tableCellStart
-			end = tableCellEnd
-		} else {
-			// end rows that aren't terminated by "tableCellEnd" with a cr if end of row
-			if node.Parent.Next == nil && !node.Parent.IsHeader {
-				end = crTag
-			}
-		}
-	}
-	out(w, start)
-	escapeSpecialChars(w, node.Literal)
-	out(w, end)
-}
-
-func (r *roffRenderer) handleHeading(w io.Writer, node *blackfriday.Node, entering bool) {
-	if entering {
-		switch node.Level {
-		case 1:
-			if !r.firstHeader {
-				out(w, titleHeader)
-				r.firstHeader = true
-				break
-			}
-			out(w, topLevelHeader)
-		case 2:
-			out(w, secondLevelHdr)
-		default:
-			out(w, otherHeader)
-		}
-	}
-}
-
-func (r *roffRenderer) handleList(w io.Writer, node *blackfriday.Node, entering bool) {
-	openTag := listTag
-	closeTag := listCloseTag
-	if node.ListFlags&blackfriday.ListTypeDefinition != 0 {
-		// tags for definition lists handled within Item node
-		openTag = ""
-		closeTag = ""
-	}
-	if entering {
-		r.listDepth++
-		if node.ListFlags&blackfriday.ListTypeOrdered != 0 {
-			r.listCounters = append(r.listCounters, 1)
-		}
-		out(w, openTag)
-	} else {
-		if node.ListFlags&blackfriday.ListTypeOrdered != 0 {
-			r.listCounters = r.listCounters[:len(r.listCounters)-1]
-		}
-		out(w, closeTag)
-		r.listDepth--
-	}
-}
-
-func (r *roffRenderer) handleItem(w io.Writer, node *blackfriday.Node, entering bool) {
-	if entering {
-		if node.ListFlags&blackfriday.ListTypeOrdered != 0 {
-			out(w, fmt.Sprintf(".IP \"%3d.\" 5\n", r.listCounters[len(r.listCounters)-1]))
-			r.listCounters[len(r.listCounters)-1]++
-		} else if node.ListFlags&blackfriday.ListTypeDefinition != 0 {
-			// state machine for handling terms and following definitions
-			// since blackfriday does not distinguish them properly, nor
-			// does it seperate them into separate lists as it should
-			if !r.defineTerm {
-				out(w, arglistTag)
-				r.defineTerm = true
-			} else {
-				r.defineTerm = false
-			}
-		} else {
-			out(w, ".IP \\(bu 2\n")
-		}
-	} else {
-		out(w, "\n")
-	}
-}
-
-func (r *roffRenderer) handleTable(w io.Writer, node *blackfriday.Node, entering bool) {
-	if entering {
-		out(w, tableStart)
-		//call walker to count cells (and rows?) so format section can be produced
-		columns := countColumns(node)
-		out(w, strings.Repeat("l ", columns)+"\n")
-		out(w, strings.Repeat("l ", columns)+".\n")
-	} else {
-		out(w, tableEnd)
-	}
-}
-
-func (r *roffRenderer) handleTableCell(w io.Writer, node *blackfriday.Node, entering bool) {
-	var (
-		start, end string
-	)
-	if node.IsHeader {
-		start = codespanTag
-		end = codespanCloseTag
-	}
-	if entering {
-		if node.Prev != nil && node.Prev.Type == blackfriday.TableCell {
-			out(w, "\t"+start)
-		} else {
-			out(w, start)
-		}
-	} else {
-		// need to carriage return if we are at the end of the header row
-		if node.IsHeader && node.Next == nil {
-			end = end + crTag
-		}
-		out(w, end)
-	}
-}
-
-// because roff format requires knowing the column count before outputting any table
-// data we need to walk a table tree and count the columns
-func countColumns(node *blackfriday.Node) int {
-	var columns int
-
-	node.Walk(func(node *blackfriday.Node, entering bool) blackfriday.WalkStatus {
-		switch node.Type {
-		case blackfriday.TableRow:
-			if !entering {
-				return blackfriday.Terminate
-			}
-		case blackfriday.TableCell:
-			if entering {
-				columns++
-			}
-		default:
-		}
-		return blackfriday.GoToNext
-	})
-	return columns
-}
-
-func out(w io.Writer, output string) {
-	io.WriteString(w, output) // nolint: errcheck
-}
-
-func needsBackslash(c byte) bool {
-	for _, r := range []byte("-_&\\~") {
-		if c == r {
-			return true
-		}
-	}
-	return false
-}
-
-func escapeSpecialChars(w io.Writer, text []byte) {
-	for i := 0; i < len(text); i++ {
-		// escape initial apostrophe or period
-		if len(text) >= 1 && (text[0] == '\'' || text[0] == '.') {
-			out(w, "\\&")
-		}
-
-		// directly copy normal characters
-		org := i
-
-		for i < len(text) && !needsBackslash(text[i]) {
-			i++
-		}
-		if i > org {
-			w.Write(text[org:i]) // nolint: errcheck
-		}
-
-		// escape a character
-		if i >= len(text) {
-			break
-		}
-
-		w.Write([]byte{'\\', text[i]}) // nolint: errcheck
-	}
-}

vendor/github.com/creack/pty/.gitignore

@@ -1,4 +0,0 @@
-[568].out
-_go*
-_test*
-_obj

vendor/github.com/creack/pty/Dockerfile.riscv

@@ -1,14 +0,0 @@
-FROM golang:1.12
-
-# Clone and complie a riscv compatible version of the go compiler.
-RUN git clone https://review.gerrithub.io/riscv/riscv-go /riscv-go
-# riscvdev branch HEAD as of 2019-06-29.
-RUN cd /riscv-go && git checkout 04885fddd096d09d4450726064d06dd107e374bf
-ENV PATH=/riscv-go/misc/riscv:/riscv-go/bin:$PATH
-RUN cd /riscv-go/src && GOROOT_BOOTSTRAP=$(go env GOROOT) ./make.bash
-ENV GOROOT=/riscv-go
-
-# Make sure we compile.
-WORKDIR pty
-ADD . .
-RUN GOOS=linux GOARCH=riscv go build

vendor/github.com/creack/pty/LICENSE

@@ -1,23 +0,0 @@
-Copyright (c) 2011 Keith Rarick
-
-Permission is hereby granted, free of charge, to any person
-obtaining a copy of this software and associated
-documentation files (the "Software"), to deal in the
-Software without restriction, including without limitation
-the rights to use, copy, modify, merge, publish, distribute,
-sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall
-be included in all copies or substantial portions of the
-Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
-KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
-WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
-PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
-OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vendor/github.com/creack/pty/README.md

@@ -1,100 +0,0 @@
-# pty
-
-Pty is a Go package for using unix pseudo-terminals.
-
-## Install
-
-    go get github.com/creack/pty
-
-## Example
-
-### Command
-
-```go
-package main
-
-import (
-	"github.com/creack/pty"
-	"io"
-	"os"
-	"os/exec"
-)
-
-func main() {
-	c := exec.Command("grep", "--color=auto", "bar")
-	f, err := pty.Start(c)
-	if err != nil {
-		panic(err)
-	}
-
-	go func() {
-		f.Write([]byte("foo\n"))
-		f.Write([]byte("bar\n"))
-		f.Write([]byte("baz\n"))
-		f.Write([]byte{4}) // EOT
-	}()
-	io.Copy(os.Stdout, f)
-}
-```
-
-### Shell
-
-```go
-package main
-
-import (
-        "io"
-        "log"
-        "os"
-        "os/exec"
-        "os/signal"
-        "syscall"
-
-        "github.com/creack/pty"
-        "golang.org/x/crypto/ssh/terminal"
-)
-
-func test() error {
-        // Create arbitrary command.
-        c := exec.Command("bash")
-
-        // Start the command with a pty.
-        ptmx, err := pty.Start(c)
-        if err != nil {
-                return err
-        }
-        // Make sure to close the pty at the end.
-        defer func() { _ = ptmx.Close() }() // Best effort.
-
-        // Handle pty size.
-        ch := make(chan os.Signal, 1)
-        signal.Notify(ch, syscall.SIGWINCH)
-        go func() {
-                for range ch {
-                        if err := pty.InheritSize(os.Stdin, ptmx); err != nil {
-                                log.Printf("error resizing pty: %s", err)
-                        }
-                }
-        }()
-        ch <- syscall.SIGWINCH // Initial resize.
-
-        // Set stdin in raw mode.
-        oldState, err := terminal.MakeRaw(int(os.Stdin.Fd()))
-        if err != nil {
-                panic(err)
-        }
-        defer func() { _ = terminal.Restore(int(os.Stdin.Fd()), oldState) }() // Best effort.
-
-        // Copy stdin to the pty and the pty to stdout.
-        go func() { _, _ = io.Copy(ptmx, os.Stdin) }()
-        _, _ = io.Copy(os.Stdout, ptmx)
-
-        return nil
-}
-
-func main() {
-        if err := test(); err != nil {
-                log.Fatal(err)
-        }
-}
-```

vendor/github.com/creack/pty/doc.go

@@ -1,16 +0,0 @@
-// Package pty provides functions for working with Unix terminals.
-package pty
-
-import (
-	"errors"
-	"os"
-)
-
-// ErrUnsupported is returned if a function is not
-// available on the current platform.
-var ErrUnsupported = errors.New("unsupported")
-
-// Opens a pty and its corresponding tty.
-func Open() (pty, tty *os.File, err error) {
-	return open()
-}

vendor/github.com/creack/pty/ioctl.go

@@ -1,13 +0,0 @@
-// +build !windows,!solaris
-
-package pty
-
-import "syscall"
-
-func ioctl(fd, cmd, ptr uintptr) error {
-	_, _, e := syscall.Syscall(syscall.SYS_IOCTL, fd, cmd, ptr)
-	if e != 0 {
-		return e
-	}
-	return nil
-}

vendor/github.com/creack/pty/ioctl_bsd.go

@@ -1,39 +0,0 @@
-// +build darwin dragonfly freebsd netbsd openbsd
-
-package pty
-
-// from <sys/ioccom.h>
-const (
-	_IOC_VOID    uintptr = 0x20000000
-	_IOC_OUT     uintptr = 0x40000000
-	_IOC_IN      uintptr = 0x80000000
-	_IOC_IN_OUT  uintptr = _IOC_OUT | _IOC_IN
-	_IOC_DIRMASK         = _IOC_VOID | _IOC_OUT | _IOC_IN
-
-	_IOC_PARAM_SHIFT = 13
-	_IOC_PARAM_MASK  = (1 << _IOC_PARAM_SHIFT) - 1
-)
-
-func _IOC_PARM_LEN(ioctl uintptr) uintptr {
-	return (ioctl >> 16) & _IOC_PARAM_MASK
-}
-
-func _IOC(inout uintptr, group byte, ioctl_num uintptr, param_len uintptr) uintptr {
-	return inout | (param_len&_IOC_PARAM_MASK)<<16 | uintptr(group)<<8 | ioctl_num
-}
-
-func _IO(group byte, ioctl_num uintptr) uintptr {
-	return _IOC(_IOC_VOID, group, ioctl_num, 0)
-}
-
-func _IOR(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
-	return _IOC(_IOC_OUT, group, ioctl_num, param_len)
-}
-
-func _IOW(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
-	return _IOC(_IOC_IN, group, ioctl_num, param_len)
-}
-
-func _IOWR(group byte, ioctl_num uintptr, param_len uintptr) uintptr {
-	return _IOC(_IOC_IN_OUT, group, ioctl_num, param_len)
-}

vendor/github.com/creack/pty/ioctl_solaris.go

@@ -1,30 +0,0 @@
-package pty
-
-import (
-	"golang.org/x/sys/unix"
-	"unsafe"
-)
-
-const (
-	// see /usr/include/sys/stropts.h
-	I_PUSH  = uintptr((int32('S')<<8 | 002))
-	I_STR   = uintptr((int32('S')<<8 | 010))
-	I_FIND  = uintptr((int32('S')<<8 | 013))
-	// see /usr/include/sys/ptms.h
-	ISPTM   = (int32('P') << 8) | 1
-	UNLKPT  = (int32('P') << 8) | 2
-	PTSSTTY = (int32('P') << 8) | 3
-	ZONEPT  = (int32('P') << 8) | 4
-	OWNERPT = (int32('P') << 8) | 5
-)
-
-type strioctl struct {
-	ic_cmd    int32
-	ic_timout int32
-	ic_len    int32
-	ic_dp     unsafe.Pointer
-}
-
-func ioctl(fd, cmd, ptr uintptr) error {
-	return unix.IoctlSetInt(int(fd), uint(cmd), int(ptr))
-}

vendor/github.com/creack/pty/mktypes.bash

@@ -1,19 +0,0 @@
-#!/usr/bin/env bash
-
-GOOSARCH="${GOOS}_${GOARCH}"
-case "$GOOSARCH" in
-_* | *_ | _)
-	echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
-	exit 1
-	;;
-esac
-
-GODEFS="go tool cgo -godefs"
-
-$GODEFS types.go |gofmt > ztypes_$GOARCH.go
-
-case $GOOS in
-freebsd|dragonfly|openbsd)
-	$GODEFS types_$GOOS.go |gofmt > ztypes_$GOOSARCH.go
-	;;
-esac

vendor/github.com/creack/pty/pty_darwin.go

@@ -1,65 +0,0 @@
-package pty
-
-import (
-	"errors"
-	"os"
-	"syscall"
-	"unsafe"
-)
-
-func open() (pty, tty *os.File, err error) {
-	pFD, err := syscall.Open("/dev/ptmx", syscall.O_RDWR|syscall.O_CLOEXEC, 0)
-	if err != nil {
-		return nil, nil, err
-	}
-	p := os.NewFile(uintptr(pFD), "/dev/ptmx")
-	// In case of error after this point, make sure we close the ptmx fd.
-	defer func() {
-		if err != nil {
-			_ = p.Close() // Best effort.
-		}
-	}()
-
-	sname, err := ptsname(p)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	if err := grantpt(p); err != nil {
-		return nil, nil, err
-	}
-
-	if err := unlockpt(p); err != nil {
-		return nil, nil, err
-	}
-
-	t, err := os.OpenFile(sname, os.O_RDWR, 0)
-	if err != nil {
-		return nil, nil, err
-	}
-	return p, t, nil
-}
-
-func ptsname(f *os.File) (string, error) {
-	n := make([]byte, _IOC_PARM_LEN(syscall.TIOCPTYGNAME))
-
-	err := ioctl(f.Fd(), syscall.TIOCPTYGNAME, uintptr(unsafe.Pointer(&n[0])))
-	if err != nil {
-		return "", err
-	}
-
-	for i, c := range n {
-		if c == 0 {
-			return string(n[:i]), nil
-		}
-	}
-	return "", errors.New("TIOCPTYGNAME string not NUL-terminated")
-}
-
-func grantpt(f *os.File) error {
-	return ioctl(f.Fd(), syscall.TIOCPTYGRANT, 0)
-}
-
-func unlockpt(f *os.File) error {
-	return ioctl(f.Fd(), syscall.TIOCPTYUNLK, 0)
-}

vendor/github.com/creack/pty/pty_dragonfly.go

@@ -1,80 +0,0 @@
-package pty
-
-import (
-	"errors"
-	"os"
-	"strings"
-	"syscall"
-	"unsafe"
-)
-
-// same code as pty_darwin.go
-func open() (pty, tty *os.File, err error) {
-	p, err := os.OpenFile("/dev/ptmx", os.O_RDWR, 0)
-	if err != nil {
-		return nil, nil, err
-	}
-	// In case of error after this point, make sure we close the ptmx fd.
-	defer func() {
-		if err != nil {
-			_ = p.Close() // Best effort.
-		}
-	}()
-
-	sname, err := ptsname(p)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	if err := grantpt(p); err != nil {
-		return nil, nil, err
-	}
-
-	if err := unlockpt(p); err != nil {
-		return nil, nil, err
-	}
-
-	t, err := os.OpenFile(sname, os.O_RDWR, 0)
-	if err != nil {
-		return nil, nil, err
-	}
-	return p, t, nil
-}
-
-func grantpt(f *os.File) error {
-	_, err := isptmaster(f.Fd())
-	return err
-}
-
-func unlockpt(f *os.File) error {
-	_, err := isptmaster(f.Fd())
-	return err
-}
-
-func isptmaster(fd uintptr) (bool, error) {
-	err := ioctl(fd, syscall.TIOCISPTMASTER, 0)
-	return err == nil, err
-}
-
-var (
-	emptyFiodgnameArg fiodgnameArg
-	ioctl_FIODNAME    = _IOW('f', 120, unsafe.Sizeof(emptyFiodgnameArg))
-)
-
-func ptsname(f *os.File) (string, error) {
-	name := make([]byte, _C_SPECNAMELEN)
-	fa := fiodgnameArg{Name: (*byte)(unsafe.Pointer(&name[0])), Len: _C_SPECNAMELEN, Pad_cgo_0: [4]byte{0, 0, 0, 0}}
-
-	err := ioctl(f.Fd(), ioctl_FIODNAME, uintptr(unsafe.Pointer(&fa)))
-	if err != nil {
-		return "", err
-	}
-
-	for i, c := range name {
-		if c == 0 {
-			s := "/dev/" + string(name[:i])
-			return strings.Replace(s, "ptm", "pts", -1), nil
-		}
-	}
-	return "", errors.New("TIOCPTYGNAME string not NUL-terminated")
-}

vendor/github.com/creack/pty/pty_freebsd.go

@@ -1,78 +0,0 @@
-package pty
-
-import (
-	"errors"
-	"os"
-	"syscall"
-	"unsafe"
-)
-
-func posixOpenpt(oflag int) (fd int, err error) {
-	r0, _, e1 := syscall.Syscall(syscall.SYS_POSIX_OPENPT, uintptr(oflag), 0, 0)
-	fd = int(r0)
-	if e1 != 0 {
-		err = e1
-	}
-	return fd, err
-}
-
-func open() (pty, tty *os.File, err error) {
-	fd, err := posixOpenpt(syscall.O_RDWR | syscall.O_CLOEXEC)
-	if err != nil {
-		return nil, nil, err
-	}
-	p := os.NewFile(uintptr(fd), "/dev/pts")
-	// In case of error after this point, make sure we close the pts fd.
-	defer func() {
-		if err != nil {
-			_ = p.Close() // Best effort.
-		}
-	}()
-
-	sname, err := ptsname(p)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	t, err := os.OpenFile("/dev/"+sname, os.O_RDWR, 0)
-	if err != nil {
-		return nil, nil, err
-	}
-	return p, t, nil
-}
-
-func isptmaster(fd uintptr) (bool, error) {
-	err := ioctl(fd, syscall.TIOCPTMASTER, 0)
-	return err == nil, err
-}
-
-var (
-	emptyFiodgnameArg fiodgnameArg
-	ioctlFIODGNAME    = _IOW('f', 120, unsafe.Sizeof(emptyFiodgnameArg))
-)
-
-func ptsname(f *os.File) (string, error) {
-	master, err := isptmaster(f.Fd())
-	if err != nil {
-		return "", err
-	}
-	if !master {
-		return "", syscall.EINVAL
-	}
-
-	const n = _C_SPECNAMELEN + 1
-	var (
-		buf = make([]byte, n)
-		arg = fiodgnameArg{Len: n, Buf: (*byte)(unsafe.Pointer(&buf[0]))}
-	)
-	if err := ioctl(f.Fd(), ioctlFIODGNAME, uintptr(unsafe.Pointer(&arg))); err != nil {
-		return "", err
-	}
-
-	for i, c := range buf {
-		if c == 0 {
-			return string(buf[:i]), nil
-		}
-	}
-	return "", errors.New("FIODGNAME string not NUL-terminated")
-}

vendor/github.com/creack/pty/pty_linux.go

@@ -1,51 +0,0 @@
-package pty
-
-import (
-	"os"
-	"strconv"
-	"syscall"
-	"unsafe"
-)
-
-func open() (pty, tty *os.File, err error) {
-	p, err := os.OpenFile("/dev/ptmx", os.O_RDWR, 0)
-	if err != nil {
-		return nil, nil, err
-	}
-	// In case of error after this point, make sure we close the ptmx fd.
-	defer func() {
-		if err != nil {
-			_ = p.Close() // Best effort.
-		}
-	}()
-
-	sname, err := ptsname(p)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	if err := unlockpt(p); err != nil {
-		return nil, nil, err
-	}
-
-	t, err := os.OpenFile(sname, os.O_RDWR|syscall.O_NOCTTY, 0)
-	if err != nil {
-		return nil, nil, err
-	}
-	return p, t, nil
-}
-
-func ptsname(f *os.File) (string, error) {
-	var n _C_uint
-	err := ioctl(f.Fd(), syscall.TIOCGPTN, uintptr(unsafe.Pointer(&n)))
-	if err != nil {
-		return "", err
-	}
-	return "/dev/pts/" + strconv.Itoa(int(n)), nil
-}
-
-func unlockpt(f *os.File) error {
-	var u _C_int
-	// use TIOCSPTLCK with a pointer to zero to clear the lock
-	return ioctl(f.Fd(), syscall.TIOCSPTLCK, uintptr(unsafe.Pointer(&u)))
-}

vendor/github.com/creack/pty/pty_openbsd.go

@@ -1,33 +0,0 @@
-package pty
-
-import (
-	"os"
-	"syscall"
-	"unsafe"
-)
-
-func open() (pty, tty *os.File, err error) {
-	/*
-	 * from ptm(4):
-	 * The PTMGET command allocates a free pseudo terminal, changes its
-	 * ownership to the caller, revokes the access privileges for all previous
-	 * users, opens the file descriptors for the pty and tty devices and
-	 * returns them to the caller in struct ptmget.
-	 */
-
-	p, err := os.OpenFile("/dev/ptm", os.O_RDWR|syscall.O_CLOEXEC, 0)
-	if err != nil {
-		return nil, nil, err
-	}
-	defer p.Close()
-
-	var ptm ptmget
-	if err := ioctl(p.Fd(), uintptr(ioctl_PTMGET), uintptr(unsafe.Pointer(&ptm))); err != nil {
-		return nil, nil, err
-	}
-
-	pty = os.NewFile(uintptr(ptm.Cfd), "/dev/ptm")
-	tty = os.NewFile(uintptr(ptm.Sfd), "/dev/ptm")
-
-	return pty, tty, nil
-}

vendor/github.com/creack/pty/pty_solaris.go

@@ -1,139 +0,0 @@
-package pty
-
-/* based on:
-http://src.illumos.org/source/xref/illumos-gate/usr/src/lib/libc/port/gen/pt.c
-*/
-
-import (
-	"errors"
-	"golang.org/x/sys/unix"
-	"os"
-	"strconv"
-	"syscall"
-	"unsafe"
-)
-
-const NODEV = ^uint64(0)
-
-func open() (pty, tty *os.File, err error) {
-	masterfd, err := syscall.Open("/dev/ptmx", syscall.O_RDWR|unix.O_NOCTTY, 0)
-	//masterfd, err := syscall.Open("/dev/ptmx", syscall.O_RDWR|syscall.O_CLOEXEC|unix.O_NOCTTY, 0)
-	if err != nil {
-		return nil, nil, err
-	}
-	p := os.NewFile(uintptr(masterfd), "/dev/ptmx")
-
-	sname, err := ptsname(p)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	err = grantpt(p)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	err = unlockpt(p)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	slavefd, err := syscall.Open(sname, os.O_RDWR|unix.O_NOCTTY, 0)
-	if err != nil {
-		return nil, nil, err
-	}
-	t := os.NewFile(uintptr(slavefd), sname)
-
-	// pushing terminal driver STREAMS modules as per pts(7)
-	for _, mod := range([]string{"ptem", "ldterm", "ttcompat"}) {
-		err = streams_push(t, mod)
-		if err != nil {
-			return nil, nil, err
-		}
-	}
-	
-	return p, t, nil
-}
-
-func minor(x uint64) uint64 {
-	return x & 0377
-}
-
-func ptsdev(fd uintptr) uint64 {
-	istr := strioctl{ISPTM, 0, 0, nil}
-	err := ioctl(fd, I_STR, uintptr(unsafe.Pointer(&istr)))
-	if err != nil {
-		return NODEV
-	}
-	var status unix.Stat_t
-	err = unix.Fstat(int(fd), &status)
-	if err != nil {
-		return NODEV
-	}
-	return uint64(minor(status.Rdev))
-}
-
-func ptsname(f *os.File) (string, error) {
-	dev := ptsdev(f.Fd())
-	if dev == NODEV {
-		return "", errors.New("not a master pty")
-	}
-	fn := "/dev/pts/" + strconv.FormatInt(int64(dev), 10)
-	// access(2) creates the slave device (if the pty exists)
-	// F_OK == 0 (unistd.h)
-	err := unix.Access(fn, 0)
-	if err != nil {
-		return "", err
-	}
-	return fn, nil
-}
-
-type pt_own struct {
-	pto_ruid int32
-	pto_rgid int32
-}
-
-func grantpt(f *os.File) error {
-	if ptsdev(f.Fd()) == NODEV {
-		return errors.New("not a master pty")
-	}
-	var pto pt_own
-	pto.pto_ruid = int32(os.Getuid())
-	// XXX should first attempt to get gid of DEFAULT_TTY_GROUP="tty"
-	pto.pto_rgid = int32(os.Getgid())
-	var istr strioctl
-	istr.ic_cmd = OWNERPT
-	istr.ic_timout = 0
-	istr.ic_len = int32(unsafe.Sizeof(istr))
-	istr.ic_dp = unsafe.Pointer(&pto)
-	err := ioctl(f.Fd(), I_STR, uintptr(unsafe.Pointer(&istr)))
-	if err != nil {
-		return errors.New("access denied")
-	}
-	return nil
-}
-
-func unlockpt(f *os.File) error {
-	istr := strioctl{UNLKPT, 0, 0, nil}
-	return ioctl(f.Fd(), I_STR, uintptr(unsafe.Pointer(&istr)))
-}
-
-// push STREAMS modules if not already done so
-func streams_push(f *os.File, mod string) error {
-	var err error
-	buf := []byte(mod)
-	// XXX I_FIND is not returning an error when the module
-	// is already pushed even though truss reports a return
-	// value of 1. A bug in the Go Solaris syscall interface?
-	// XXX without this we are at risk of the issue
-	// https://www.illumos.org/issues/9042
-	// but since we are not using libc or XPG4.2, we should not be
-	// double-pushing modules
-	
-	err = ioctl(f.Fd(), I_FIND, uintptr(unsafe.Pointer(&buf[0])))
-	if err != nil {
-		return nil
-	}
-	err = ioctl(f.Fd(), I_PUSH, uintptr(unsafe.Pointer(&buf[0])))
-	return err
-}

vendor/github.com/creack/pty/pty_unsupported.go

@@ -1,11 +0,0 @@
-// +build !linux,!darwin,!freebsd,!dragonfly,!openbsd,!solaris
-
-package pty
-
-import (
-	"os"
-)
-
-func open() (pty, tty *os.File, err error) {
-	return nil, nil, ErrUnsupported
-}

vendor/github.com/creack/pty/run.go

@@ -1,57 +0,0 @@
-// +build !windows
-
-package pty
-
-import (
-	"os"
-	"os/exec"
-	"syscall"
-)
-
-// Start assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
-// and c.Stderr, calls c.Start, and returns the File of the tty's
-// corresponding pty.
-func Start(c *exec.Cmd) (pty *os.File, err error) {
-	return StartWithSize(c, nil)
-}
-
-// StartWithSize assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
-// and c.Stderr, calls c.Start, and returns the File of the tty's
-// corresponding pty.
-//
-// This will resize the pty to the specified size before starting the command
-func StartWithSize(c *exec.Cmd, sz *Winsize) (pty *os.File, err error) {
-	pty, tty, err := Open()
-	if err != nil {
-		return nil, err
-	}
-	defer tty.Close()
-	if sz != nil {
-		err = Setsize(pty, sz)
-		if err != nil {
-			pty.Close()
-			return nil, err
-		}
-	}
-	if c.Stdout == nil {
-		c.Stdout = tty
-	}
-	if c.Stderr == nil {
-		c.Stderr = tty
-	}
-	if c.Stdin == nil {
-		c.Stdin = tty
-	}
-	if c.SysProcAttr == nil {
-		c.SysProcAttr = &syscall.SysProcAttr{}
-	}
-	c.SysProcAttr.Setctty = true
-	c.SysProcAttr.Setsid = true
-	c.SysProcAttr.Ctty = int(tty.Fd())
-	err = c.Start()
-	if err != nil {
-		pty.Close()
-		return nil, err
-	}
-	return pty, err
-}

vendor/github.com/creack/pty/test_crosscompile.sh

@@ -1,50 +0,0 @@
-#!/usr/bin/env sh
-
-# Test script checking that all expected os/arch compile properly.
-# Does not actually test the logic, just the compilation so we make sure we don't break code depending on the lib.
-
-echo2() {
-    echo $@ >&2
-}
-
-trap end 0
-end() {
-    [ "$?" = 0 ] && echo2 "Pass." || (echo2 "Fail."; exit 1)
-}
-
-cross() {
-    os=$1
-    shift
-    echo2 "Build for $os."
-    for arch in $@; do
-	echo2 "  - $os/$arch"
-	GOOS=$os GOARCH=$arch go build
-    done
-    echo2
-}
-
-set -e
-
-cross linux     amd64 386 arm arm64 ppc64 ppc64le s390x mips mipsle mips64 mips64le
-cross darwin    amd64 386 arm arm64
-cross freebsd   amd64 386 arm
-cross netbsd    amd64 386 arm
-cross openbsd   amd64 386
-cross dragonfly amd64
-cross solaris   amd64
-
-# Not expected to work but should still compile.
-cross windows amd64 386 arm
-
-# TODO: Fix compilation error on openbsd/arm.
-# TODO: Merge the solaris PR.
-
-# Some os/arch require a different compiler. Run in docker.
-if ! hash docker; then
-    # If docker is not present, stop here.
-    return
-fi
-
-echo2 "Build for linux."
-echo2 "  - linux/riscv"
-docker build -t test -f Dockerfile.riscv .

vendor/github.com/creack/pty/util.go

@@ -1,64 +0,0 @@
-// +build !windows,!solaris
-
-package pty
-
-import (
-	"os"
-	"syscall"
-	"unsafe"
-)
-
-// InheritSize applies the terminal size of pty to tty. This should be run
-// in a signal handler for syscall.SIGWINCH to automatically resize the tty when
-// the pty receives a window size change notification.
-func InheritSize(pty, tty *os.File) error {
-	size, err := GetsizeFull(pty)
-	if err != nil {
-		return err
-	}
-	err = Setsize(tty, size)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-// Setsize resizes t to s.
-func Setsize(t *os.File, ws *Winsize) error {
-	return windowRectCall(ws, t.Fd(), syscall.TIOCSWINSZ)
-}
-
-// GetsizeFull returns the full terminal size description.
-func GetsizeFull(t *os.File) (size *Winsize, err error) {
-	var ws Winsize
-	err = windowRectCall(&ws, t.Fd(), syscall.TIOCGWINSZ)
-	return &ws, err
-}
-
-// Getsize returns the number of rows (lines) and cols (positions
-// in each line) in terminal t.
-func Getsize(t *os.File) (rows, cols int, err error) {
-	ws, err := GetsizeFull(t)
-	return int(ws.Rows), int(ws.Cols), err
-}
-
-// Winsize describes the terminal size.
-type Winsize struct {
-	Rows uint16 // ws_row: Number of rows (in cells)
-	Cols uint16 // ws_col: Number of columns (in cells)
-	X    uint16 // ws_xpixel: Width in pixels
-	Y    uint16 // ws_ypixel: Height in pixels
-}
-
-func windowRectCall(ws *Winsize, fd, a2 uintptr) error {
-	_, _, errno := syscall.Syscall(
-		syscall.SYS_IOCTL,
-		fd,
-		a2,
-		uintptr(unsafe.Pointer(ws)),
-	)
-	if errno != 0 {
-		return syscall.Errno(errno)
-	}
-	return nil
-}

vendor/github.com/creack/pty/util_solaris.go

@@ -1,51 +0,0 @@
-//
-
-package pty
-
-import (
-	"os"
-	"golang.org/x/sys/unix"
-)
-
-const (
-	TIOCGWINSZ = 21608 // 'T' << 8 | 104
-	TIOCSWINSZ = 21607 // 'T' << 8 | 103
-)
-
-// Winsize describes the terminal size.
-type Winsize struct {
-	Rows uint16 // ws_row: Number of rows (in cells)
-	Cols uint16 // ws_col: Number of columns (in cells)
-	X    uint16 // ws_xpixel: Width in pixels
-	Y    uint16 // ws_ypixel: Height in pixels
-}
-
-// GetsizeFull returns the full terminal size description.
-func GetsizeFull(t *os.File) (size *Winsize, err error) {
-	var wsz *unix.Winsize
-	wsz, err = unix.IoctlGetWinsize(int(t.Fd()), TIOCGWINSZ)
-
-	if err != nil {
-		return nil, err
-	} else {
-		return &Winsize{wsz.Row, wsz.Col, wsz.Xpixel, wsz.Ypixel}, nil
-	}
-}
-
-// Get Windows Size
-func Getsize(t *os.File) (rows, cols int, err error) {
-	var wsz *unix.Winsize
-	wsz, err = unix.IoctlGetWinsize(int(t.Fd()), TIOCGWINSZ)
-
-	if err != nil {
-		return 80, 25, err
-	} else {
-		return int(wsz.Row), int(wsz.Col), nil
-	}
-}
-
-// Setsize resizes t to s.
-func Setsize(t *os.File, ws *Winsize) error {
-	wsz := unix.Winsize{ws.Rows, ws.Cols, ws.X, ws.Y}
-	return unix.IoctlSetWinsize(int(t.Fd()), TIOCSWINSZ, &wsz)
-}

vendor/github.com/creack/pty/ztypes_386.go

@@ -1,9 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types.go
-
-package pty
-
-type (
-	_C_int  int32
-	_C_uint uint32
-)

vendor/github.com/creack/pty/ztypes_amd64.go

@@ -1,9 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types.go
-
-package pty
-
-type (
-	_C_int  int32
-	_C_uint uint32
-)

vendor/github.com/creack/pty/ztypes_arm.go

@@ -1,9 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types.go
-
-package pty
-
-type (
-	_C_int  int32
-	_C_uint uint32
-)

vendor/github.com/creack/pty/ztypes_arm64.go

@@ -1,11 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types.go
-
-// +build arm64
-
-package pty
-
-type (
-	_C_int  int32
-	_C_uint uint32
-)

vendor/github.com/creack/pty/ztypes_dragonfly_amd64.go

@@ -1,14 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types_dragonfly.go
-
-package pty
-
-const (
-	_C_SPECNAMELEN = 0x3f
-)
-
-type fiodgnameArg struct {
-	Name      *byte
-	Len       uint32
-	Pad_cgo_0 [4]byte
-}

vendor/github.com/creack/pty/ztypes_freebsd_386.go

@@ -1,13 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types_freebsd.go
-
-package pty
-
-const (
-	_C_SPECNAMELEN = 0x3f
-)
-
-type fiodgnameArg struct {
-	Len int32
-	Buf *byte
-}

vendor/github.com/creack/pty/ztypes_freebsd_amd64.go

@@ -1,14 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types_freebsd.go
-
-package pty
-
-const (
-	_C_SPECNAMELEN = 0x3f
-)
-
-type fiodgnameArg struct {
-	Len       int32
-	Pad_cgo_0 [4]byte
-	Buf       *byte
-}

vendor/github.com/creack/pty/ztypes_freebsd_arm.go

@@ -1,13 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types_freebsd.go
-
-package pty
-
-const (
-	_C_SPECNAMELEN = 0x3f
-)
-
-type fiodgnameArg struct {
-	Len int32
-	Buf *byte
-}

vendor/github.com/creack/pty/ztypes_mipsx.go

@@ -1,12 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types.go
-
-// +build linux
-// +build mips mipsle mips64 mips64le
-
-package pty
-
-type (
-	_C_int  int32
-	_C_uint uint32
-)

vendor/github.com/creack/pty/ztypes_openbsd_386.go

@@ -1,13 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types_openbsd.go
-
-package pty
-
-type ptmget struct {
-	Cfd	int32
-	Sfd	int32
-	Cn	[16]int8
-	Sn	[16]int8
-}
-
-var ioctl_PTMGET = 0x40287401

vendor/github.com/creack/pty/ztypes_openbsd_amd64.go

@@ -1,13 +0,0 @@
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types_openbsd.go
-
-package pty
-
-type ptmget struct {
-	Cfd int32
-	Sfd int32
-	Cn  [16]int8
-	Sn  [16]int8
-}
-
-var ioctl_PTMGET = 0x40287401

vendor/github.com/creack/pty/ztypes_ppc64.go

@@ -1,11 +0,0 @@
-// +build ppc64
-
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types.go
-
-package pty
-
-type (
-	_C_int  int32
-	_C_uint uint32
-)

vendor/github.com/creack/pty/ztypes_ppc64le.go

@@ -1,11 +0,0 @@
-// +build ppc64le
-
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types.go
-
-package pty
-
-type (
-	_C_int  int32
-	_C_uint uint32
-)

vendor/github.com/creack/pty/ztypes_riscvx.go

@@ -1,11 +0,0 @@
-// Code generated by cmd/cgo -godefs; DO NOT EDIT.
-// cgo -godefs types.go
-
-// +build riscv riscv64
-
-package pty
-
-type (
-	_C_int  int32
-	_C_uint uint32
-)

vendor/github.com/creack/pty/ztypes_s390x.go

@@ -1,11 +0,0 @@
-// +build s390x
-
-// Created by cgo -godefs - DO NOT EDIT
-// cgo -godefs types.go
-
-package pty
-
-type (
-	_C_int  int32
-	_C_uint uint32
-)

vendor/github.com/elazarl/go-bindata-assetfs/LICENSE

@@ -1,23 +0,0 @@
-Copyright (c) 2014, Elazar Leibovich
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above copyright notice, this
-  list of conditions and the following disclaimer.
-
-* Redistributions in binary form must reproduce the above copyright notice,
-  this list of conditions and the following disclaimer in the documentation
-  and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/elazarl/go-bindata-assetfs/README.md

@@ -1,46 +0,0 @@
-# go-bindata-assetfs
-
-Serve embedded files from [jteeuwen/go-bindata](https://github.com/jteeuwen/go-bindata) with `net/http`.
-
-[GoDoc](http://godoc.org/github.com/elazarl/go-bindata-assetfs)
-
-### Installation
-
-Install with
-
-    $ go get github.com/jteeuwen/go-bindata/...
-    $ go get github.com/elazarl/go-bindata-assetfs/...
-
-### Creating embedded data
-
-Usage is identical to [jteeuwen/go-bindata](https://github.com/jteeuwen/go-bindata) usage,
-instead of running `go-bindata` run `go-bindata-assetfs`.
-
-The tool will create a `bindata_assetfs.go` file, which contains the embedded data.
-
-A typical use case is
-
-    $ go-bindata-assetfs data/...
-
-### Using assetFS in your code
-
-The generated file provides an `assetFS()` function that returns a `http.Filesystem`
-wrapping the embedded files. What you usually want to do is:
-
-    http.Handle("/", http.FileServer(assetFS()))
-
-This would run an HTTP server serving the embedded files.
-
-## Without running binary tool
-
-You can always just run the `go-bindata` tool, and then
-
-use
-
-     import "github.com/elazarl/go-bindata-assetfs"
-     ...
-     http.Handle("/",
-        http.FileServer(
-        &assetfs.AssetFS{Asset: Asset, AssetDir: AssetDir, AssetInfo: AssetInfo, Prefix: "data"}))
-
-to serve files embedded from the `data` directory.

vendor/github.com/elazarl/go-bindata-assetfs/assetfs.go

@@ -1,167 +0,0 @@
-package assetfs
-
-import (
-	"bytes"
-	"errors"
-	"io"
-	"io/ioutil"
-	"net/http"
-	"os"
-	"path"
-	"path/filepath"
-	"strings"
-	"time"
-)
-
-var (
-	defaultFileTimestamp = time.Now()
-)
-
-// FakeFile implements os.FileInfo interface for a given path and size
-type FakeFile struct {
-	// Path is the path of this file
-	Path string
-	// Dir marks of the path is a directory
-	Dir bool
-	// Len is the length of the fake file, zero if it is a directory
-	Len int64
-	// Timestamp is the ModTime of this file
-	Timestamp time.Time
-}
-
-func (f *FakeFile) Name() string {
-	_, name := filepath.Split(f.Path)
-	return name
-}
-
-func (f *FakeFile) Mode() os.FileMode {
-	mode := os.FileMode(0644)
-	if f.Dir {
-		return mode | os.ModeDir
-	}
-	return mode
-}
-
-func (f *FakeFile) ModTime() time.Time {
-	return f.Timestamp
-}
-
-func (f *FakeFile) Size() int64 {
-	return f.Len
-}
-
-func (f *FakeFile) IsDir() bool {
-	return f.Mode().IsDir()
-}
-
-func (f *FakeFile) Sys() interface{} {
-	return nil
-}
-
-// AssetFile implements http.File interface for a no-directory file with content
-type AssetFile struct {
-	*bytes.Reader
-	io.Closer
-	FakeFile
-}
-
-func NewAssetFile(name string, content []byte, timestamp time.Time) *AssetFile {
-	if timestamp.IsZero() {
-		timestamp = defaultFileTimestamp
-	}
-	return &AssetFile{
-		bytes.NewReader(content),
-		ioutil.NopCloser(nil),
-		FakeFile{name, false, int64(len(content)), timestamp}}
-}
-
-func (f *AssetFile) Readdir(count int) ([]os.FileInfo, error) {
-	return nil, errors.New("not a directory")
-}
-
-func (f *AssetFile) Size() int64 {
-	return f.FakeFile.Size()
-}
-
-func (f *AssetFile) Stat() (os.FileInfo, error) {
-	return f, nil
-}
-
-// AssetDirectory implements http.File interface for a directory
-type AssetDirectory struct {
-	AssetFile
-	ChildrenRead int
-	Children     []os.FileInfo
-}
-
-func NewAssetDirectory(name string, children []string, fs *AssetFS) *AssetDirectory {
-	fileinfos := make([]os.FileInfo, 0, len(children))
-	for _, child := range children {
-		_, err := fs.AssetDir(filepath.Join(name, child))
-		fileinfos = append(fileinfos, &FakeFile{child, err == nil, 0, time.Time{}})
-	}
-	return &AssetDirectory{
-		AssetFile{
-			bytes.NewReader(nil),
-			ioutil.NopCloser(nil),
-			FakeFile{name, true, 0, time.Time{}},
-		},
-		0,
-		fileinfos}
-}
-
-func (f *AssetDirectory) Readdir(count int) ([]os.FileInfo, error) {
-	if count <= 0 {
-		return f.Children, nil
-	}
-	if f.ChildrenRead+count > len(f.Children) {
-		count = len(f.Children) - f.ChildrenRead
-	}
-	rv := f.Children[f.ChildrenRead : f.ChildrenRead+count]
-	f.ChildrenRead += count
-	return rv, nil
-}
-
-func (f *AssetDirectory) Stat() (os.FileInfo, error) {
-	return f, nil
-}
-
-// AssetFS implements http.FileSystem, allowing
-// embedded files to be served from net/http package.
-type AssetFS struct {
-	// Asset should return content of file in path if exists
-	Asset func(path string) ([]byte, error)
-	// AssetDir should return list of files in the path
-	AssetDir func(path string) ([]string, error)
-	// AssetInfo should return the info of file in path if exists
-	AssetInfo func(path string) (os.FileInfo, error)
-	// Prefix would be prepended to http requests
-	Prefix string
-}
-
-func (fs *AssetFS) Open(name string) (http.File, error) {
-	name = path.Join(fs.Prefix, name)
-	if len(name) > 0 && name[0] == '/' {
-		name = name[1:]
-	}
-	if b, err := fs.Asset(name); err == nil {
-		timestamp := defaultFileTimestamp
-		if fs.AssetInfo != nil {
-			if info, err := fs.AssetInfo(name); err == nil {
-				timestamp = info.ModTime()
-			}
-		}
-		return NewAssetFile(name, b, timestamp), nil
-	}
-	if children, err := fs.AssetDir(name); err == nil {
-		return NewAssetDirectory(name, children, fs), nil
-	} else {
-		// If the error is not found, return an error that will
-		// result in a 404 error. Otherwise the server returns
-		// a 500 error for files not found.
-		if strings.Contains(err.Error(), "not found") {
-			return nil, os.ErrNotExist
-		}
-		return nil, err
-	}
-}

vendor/github.com/elazarl/go-bindata-assetfs/doc.go

@@ -1,13 +0,0 @@
-// assetfs allows packages to serve static content embedded
-// with the go-bindata tool with the standard net/http package.
-//
-// See https://github.com/jteeuwen/go-bindata for more information
-// about embedding binary data with go-bindata.
-//
-// Usage example, after running
-//    $ go-bindata data/...
-// use:
-//     http.Handle("/",
-//        http.FileServer(
-//        &assetfs.AssetFS{Asset: Asset, AssetDir: AssetDir, Prefix: "data"}))
-package assetfs

vendor/github.com/fatih/structs/.gitignore

@@ -1,23 +0,0 @@
-# Compiled Object files, Static and Dynamic libs (Shared Objects)
-*.o
-*.a
-*.so
-
-# Folders
-_obj
-_test
-
-# Architecture specific extensions/prefixes
-*.[568vq]
-[568vq].out
-
-*.cgo1.go
-*.cgo2.c
-_cgo_defun.c
-_cgo_gotypes.go
-_cgo_export.*
-
-_testmain.go
-
-*.exe
-*.test

vendor/github.com/fatih/structs/.travis.yml

@@ -1,13 +0,0 @@
-language: go
-go: 
- - 1.7.x
- - 1.8.x
- - 1.9.x
- - tip
-sudo: false
-before_install:
-- go get github.com/axw/gocov/gocov
-- go get github.com/mattn/goveralls
-- if ! go get github.com/golang/tools/cmd/cover; then go get golang.org/x/tools/cmd/cover; fi
-script:
-- $HOME/gopath/bin/goveralls -service=travis-ci

vendor/github.com/fatih/structs/LICENSE

@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Fatih Arslan
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

vendor/github.com/fatih/structs/README.md

@@ -1,163 +0,0 @@
-# Structs [![GoDoc](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)](http://godoc.org/github.com/fatih/structs) [![Build Status](http://img.shields.io/travis/fatih/structs.svg?style=flat-square)](https://travis-ci.org/fatih/structs) [![Coverage Status](http://img.shields.io/coveralls/fatih/structs.svg?style=flat-square)](https://coveralls.io/r/fatih/structs)
-
-Structs contains various utilities to work with Go (Golang) structs. It was
-initially used by me to convert a struct into a `map[string]interface{}`. With
-time I've added other utilities for structs.  It's basically a high level
-package based on primitives from the reflect package. Feel free to add new
-functions or improve the existing code.
-
-## Install
-
-```bash
-go get github.com/fatih/structs
-```
-
-## Usage and Examples
-
-Just like the standard lib `strings`, `bytes` and co packages, `structs` has
-many global functions to manipulate or organize your struct data. Lets define
-and declare a struct:
-
-```go
-type Server struct {
-	Name        string `json:"name,omitempty"`
-	ID          int
-	Enabled     bool
-	users       []string // not exported
-	http.Server          // embedded
-}
-
-server := &Server{
-	Name:    "gopher",
-	ID:      123456,
-	Enabled: true,
-}
-```
-
-```go
-// Convert a struct to a map[string]interface{}
-// => {"Name":"gopher", "ID":123456, "Enabled":true}
-m := structs.Map(server)
-
-// Convert the values of a struct to a []interface{}
-// => ["gopher", 123456, true]
-v := structs.Values(server)
-
-// Convert the names of a struct to a []string
-// (see "Names methods" for more info about fields)
-n := structs.Names(server)
-
-// Convert the values of a struct to a []*Field
-// (see "Field methods" for more info about fields)
-f := structs.Fields(server)
-
-// Return the struct name => "Server"
-n := structs.Name(server)
-
-// Check if any field of a struct is initialized or not.
-h := structs.HasZero(server)
-
-// Check if all fields of a struct is initialized or not.
-z := structs.IsZero(server)
-
-// Check if server is a struct or a pointer to struct
-i := structs.IsStruct(server)
-```
-
-### Struct methods
-
-The structs functions can be also used as independent methods by creating a new
-`*structs.Struct`. This is handy if you want to have more control over the
-structs (such as retrieving a single Field).
-
-```go
-// Create a new struct type:
-s := structs.New(server)
-
-m := s.Map()              // Get a map[string]interface{}
-v := s.Values()           // Get a []interface{}
-f := s.Fields()           // Get a []*Field
-n := s.Names()            // Get a []string
-f := s.Field(name)        // Get a *Field based on the given field name
-f, ok := s.FieldOk(name)  // Get a *Field based on the given field name
-n := s.Name()             // Get the struct name
-h := s.HasZero()          // Check if any field is uninitialized
-z := s.IsZero()           // Check if all fields are uninitialized
-```
-
-### Field methods
-
-We can easily examine a single Field for more detail. Below you can see how we
-get and interact with various field methods:
-
-
-```go
-s := structs.New(server)
-
-// Get the Field struct for the "Name" field
-name := s.Field("Name")
-
-// Get the underlying value,  value => "gopher"
-value := name.Value().(string)
-
-// Set the field's value
-name.Set("another gopher")
-
-// Get the field's kind, kind =>  "string"
-name.Kind()
-
-// Check if the field is exported or not
-if name.IsExported() {
-	fmt.Println("Name field is exported")
-}
-
-// Check if the value is a zero value, such as "" for string, 0 for int
-if !name.IsZero() {
-	fmt.Println("Name is initialized")
-}
-
-// Check if the field is an anonymous (embedded) field
-if !name.IsEmbedded() {
-	fmt.Println("Name is not an embedded field")
-}
-
-// Get the Field's tag value for tag name "json", tag value => "name,omitempty"
-tagValue := name.Tag("json")
-```
-
-Nested structs are supported too:
-
-```go
-addrField := s.Field("Server").Field("Addr")
-
-// Get the value for addr
-a := addrField.Value().(string)
-
-// Or get all fields
-httpServer := s.Field("Server").Fields()
-```
-
-We can also get a slice of Fields from the Struct type to iterate over all
-fields. This is handy if you wish to examine all fields:
-
-```go
-s := structs.New(server)
-
-for _, f := range s.Fields() {
-	fmt.Printf("field name: %+v\n", f.Name())
-
-	if f.IsExported() {
-		fmt.Printf("value   : %+v\n", f.Value())
-		fmt.Printf("is zero : %+v\n", f.IsZero())
-	}
-}
-```
-
-## Credits
-
- * [Fatih Arslan](https://github.com/fatih)
- * [Cihangir Savas](https://github.com/cihangir)
-
-## License
-
-The MIT License (MIT) - see LICENSE.md for more details

vendor/github.com/fatih/structs/field.go

@@ -1,141 +0,0 @@
-package structs
-
-import (
-	"errors"
-	"fmt"
-	"reflect"
-)
-
-var (
-	errNotExported = errors.New("field is not exported")
-	errNotSettable = errors.New("field is not settable")
-)
-
-// Field represents a single struct field that encapsulates high level
-// functions around the field.
-type Field struct {
-	value      reflect.Value
-	field      reflect.StructField
-	defaultTag string
-}
-
-// Tag returns the value associated with key in the tag string. If there is no
-// such key in the tag, Tag returns the empty string.
-func (f *Field) Tag(key string) string {
-	return f.field.Tag.Get(key)
-}
-
-// Value returns the underlying value of the field. It panics if the field
-// is not exported.
-func (f *Field) Value() interface{} {
-	return f.value.Interface()
-}
-
-// IsEmbedded returns true if the given field is an anonymous field (embedded)
-func (f *Field) IsEmbedded() bool {
-	return f.field.Anonymous
-}
-
-// IsExported returns true if the given field is exported.
-func (f *Field) IsExported() bool {
-	return f.field.PkgPath == ""
-}
-
-// IsZero returns true if the given field is not initialized (has a zero value).
-// It panics if the field is not exported.
-func (f *Field) IsZero() bool {
-	zero := reflect.Zero(f.value.Type()).Interface()
-	current := f.Value()
-
-	return reflect.DeepEqual(current, zero)
-}
-
-// Name returns the name of the given field
-func (f *Field) Name() string {
-	return f.field.Name
-}
-
-// Kind returns the fields kind, such as "string", "map", "bool", etc ..
-func (f *Field) Kind() reflect.Kind {
-	return f.value.Kind()
-}
-
-// Set sets the field to given value v. It returns an error if the field is not
-// settable (not addressable or not exported) or if the given value's type
-// doesn't match the fields type.
-func (f *Field) Set(val interface{}) error {
-	// we can't set unexported fields, so be sure this field is exported
-	if !f.IsExported() {
-		return errNotExported
-	}
-
-	// do we get here? not sure...
-	if !f.value.CanSet() {
-		return errNotSettable
-	}
-
-	given := reflect.ValueOf(val)
-
-	if f.value.Kind() != given.Kind() {
-		return fmt.Errorf("wrong kind. got: %s want: %s", given.Kind(), f.value.Kind())
-	}
-
-	f.value.Set(given)
-	return nil
-}
-
-// Zero sets the field to its zero value. It returns an error if the field is not
-// settable (not addressable or not exported).
-func (f *Field) Zero() error {
-	zero := reflect.Zero(f.value.Type()).Interface()
-	return f.Set(zero)
-}
-
-// Fields returns a slice of Fields. This is particular handy to get the fields
-// of a nested struct . A struct tag with the content of "-" ignores the
-// checking of that particular field. Example:
-//
-//   // Field is ignored by this package.
-//   Field *http.Request `structs:"-"`
-//
-// It panics if field is not exported or if field's kind is not struct
-func (f *Field) Fields() []*Field {
-	return getFields(f.value, f.defaultTag)
-}
-
-// Field returns the field from a nested struct. It panics if the nested struct
-// is not exported or if the field was not found.
-func (f *Field) Field(name string) *Field {
-	field, ok := f.FieldOk(name)
-	if !ok {
-		panic("field not found")
-	}
-
-	return field
-}
-
-// FieldOk returns the field from a nested struct. The boolean returns whether
-// the field was found (true) or not (false).
-func (f *Field) FieldOk(name string) (*Field, bool) {
-	value := &f.value
-	// value must be settable so we need to make sure it holds the address of the
-	// variable and not a copy, so we can pass the pointer to strctVal instead of a
-	// copy (which is not assigned to any variable, hence not settable).
-	// see "https://blog.golang.org/laws-of-reflection#TOC_8."
-	if f.value.Kind() != reflect.Ptr {
-		a := f.value.Addr()
-		value = &a
-	}
-	v := strctVal(value.Interface())
-	t := v.Type()
-
-	field, ok := t.FieldByName(name)
-	if !ok {
-		return nil, false
-	}
-
-	return &Field{
-		field: field,
-		value: v.FieldByName(name),
-	}, true
-}

vendor/github.com/fatih/structs/structs.go

@@ -1,584 +0,0 @@
-// Package structs contains various utilities functions to work with structs.
-package structs
-
-import (
-	"fmt"
-
-	"reflect"
-)
-
-var (
-	// DefaultTagName is the default tag name for struct fields which provides
-	// a more granular to tweak certain structs. Lookup the necessary functions
-	// for more info.
-	DefaultTagName = "structs" // struct's field default tag name
-)
-
-// Struct encapsulates a struct type to provide several high level functions
-// around the struct.
-type Struct struct {
-	raw     interface{}
-	value   reflect.Value
-	TagName string
-}
-
-// New returns a new *Struct with the struct s. It panics if the s's kind is
-// not struct.
-func New(s interface{}) *Struct {
-	return &Struct{
-		raw:     s,
-		value:   strctVal(s),
-		TagName: DefaultTagName,
-	}
-}
-
-// Map converts the given struct to a map[string]interface{}, where the keys
-// of the map are the field names and the values of the map the associated
-// values of the fields. The default key string is the struct field name but
-// can be changed in the struct field's tag value. The "structs" key in the
-// struct's field tag value is the key name. Example:
-//
-//   // Field appears in map as key "myName".
-//   Name string `structs:"myName"`
-//
-// A tag value with the content of "-" ignores that particular field. Example:
-//
-//   // Field is ignored by this package.
-//   Field bool `structs:"-"`
-//
-// A tag value with the content of "string" uses the stringer to get the value. Example:
-//
-//   // The value will be output of Animal's String() func.
-//   // Map will panic if Animal does not implement String().
-//   Field *Animal `structs:"field,string"`
-//
-// A tag value with the option of "flatten" used in a struct field is to flatten its fields
-// in the output map. Example:
-//
-//   // The FieldStruct's fields will be flattened into the output map.
-//   FieldStruct time.Time `structs:",flatten"`
-//
-// A tag value with the option of "omitnested" stops iterating further if the type
-// is a struct. Example:
-//
-//   // Field is not processed further by this package.
-//   Field time.Time     `structs:"myName,omitnested"`
-//   Field *http.Request `structs:",omitnested"`
-//
-// A tag value with the option of "omitempty" ignores that particular field if
-// the field value is empty. Example:
-//
-//   // Field appears in map as key "myName", but the field is
-//   // skipped if empty.
-//   Field string `structs:"myName,omitempty"`
-//
-//   // Field appears in map as key "Field" (the default), but
-//   // the field is skipped if empty.
-//   Field string `structs:",omitempty"`
-//
-// Note that only exported fields of a struct can be accessed, non exported
-// fields will be neglected.
-func (s *Struct) Map() map[string]interface{} {
-	out := make(map[string]interface{})
-	s.FillMap(out)
-	return out
-}
-
-// FillMap is the same as Map. Instead of returning the output, it fills the
-// given map.
-func (s *Struct) FillMap(out map[string]interface{}) {
-	if out == nil {
-		return
-	}
-
-	fields := s.structFields()
-
-	for _, field := range fields {
-		name := field.Name
-		val := s.value.FieldByName(name)
-		isSubStruct := false
-		var finalVal interface{}
-
-		tagName, tagOpts := parseTag(field.Tag.Get(s.TagName))
-		if tagName != "" {
-			name = tagName
-		}
-
-		// if the value is a zero value and the field is marked as omitempty do
-		// not include
-		if tagOpts.Has("omitempty") {
-			zero := reflect.Zero(val.Type()).Interface()
-			current := val.Interface()
-
-			if reflect.DeepEqual(current, zero) {
-				continue
-			}
-		}
-
-		if !tagOpts.Has("omitnested") {
-			finalVal = s.nested(val)
-
-			v := reflect.ValueOf(val.Interface())
-			if v.Kind() == reflect.Ptr {
-				v = v.Elem()
-			}
-
-			switch v.Kind() {
-			case reflect.Map, reflect.Struct:
-				isSubStruct = true
-			}
-		} else {
-			finalVal = val.Interface()
-		}
-
-		if tagOpts.Has("string") {
-			s, ok := val.Interface().(fmt.Stringer)
-			if ok {
-				out[name] = s.String()
-			}
-			continue
-		}
-
-		if isSubStruct && (tagOpts.Has("flatten")) {
-			for k := range finalVal.(map[string]interface{}) {
-				out[k] = finalVal.(map[string]interface{})[k]
-			}
-		} else {
-			out[name] = finalVal
-		}
-	}
-}
-
-// Values converts the given s struct's field values to a []interface{}.  A
-// struct tag with the content of "-" ignores the that particular field.
-// Example:
-//
-//   // Field is ignored by this package.
-//   Field int `structs:"-"`
-//
-// A value with the option of "omitnested" stops iterating further if the type
-// is a struct. Example:
-//
-//   // Fields is not processed further by this package.
-//   Field time.Time     `structs:",omitnested"`
-//   Field *http.Request `structs:",omitnested"`
-//
-// A tag value with the option of "omitempty" ignores that particular field and
-// is not added to the values if the field value is empty. Example:
-//
-//   // Field is skipped if empty
-//   Field string `structs:",omitempty"`
-//
-// Note that only exported fields of a struct can be accessed, non exported
-// fields  will be neglected.
-func (s *Struct) Values() []interface{} {
-	fields := s.structFields()
-
-	var t []interface{}
-
-	for _, field := range fields {
-		val := s.value.FieldByName(field.Name)
-
-		_, tagOpts := parseTag(field.Tag.Get(s.TagName))
-
-		// if the value is a zero value and the field is marked as omitempty do
-		// not include
-		if tagOpts.Has("omitempty") {
-			zero := reflect.Zero(val.Type()).Interface()
-			current := val.Interface()
-
-			if reflect.DeepEqual(current, zero) {
-				continue
-			}
-		}
-
-		if tagOpts.Has("string") {
-			s, ok := val.Interface().(fmt.Stringer)
-			if ok {
-				t = append(t, s.String())
-			}
-			continue
-		}
-
-		if IsStruct(val.Interface()) && !tagOpts.Has("omitnested") {
-			// look out for embedded structs, and convert them to a
-			// []interface{} to be added to the final values slice
-			t = append(t, Values(val.Interface())...)
-		} else {
-			t = append(t, val.Interface())
-		}
-	}
-
-	return t
-}
-
-// Fields returns a slice of Fields. A struct tag with the content of "-"
-// ignores the checking of that particular field. Example:
-//
-//   // Field is ignored by this package.
-//   Field bool `structs:"-"`
-//
-// It panics if s's kind is not struct.
-func (s *Struct) Fields() []*Field {
-	return getFields(s.value, s.TagName)
-}
-
-// Names returns a slice of field names. A struct tag with the content of "-"
-// ignores the checking of that particular field. Example:
-//
-//   // Field is ignored by this package.
-//   Field bool `structs:"-"`
-//
-// It panics if s's kind is not struct.
-func (s *Struct) Names() []string {
-	fields := getFields(s.value, s.TagName)
-
-	names := make([]string, len(fields))
-
-	for i, field := range fields {
-		names[i] = field.Name()
-	}
-
-	return names
-}
-
-func getFields(v reflect.Value, tagName string) []*Field {
-	if v.Kind() == reflect.Ptr {
-		v = v.Elem()
-	}
-
-	t := v.Type()
-
-	var fields []*Field
-
-	for i := 0; i < t.NumField(); i++ {
-		field := t.Field(i)
-
-		if tag := field.Tag.Get(tagName); tag == "-" {
-			continue
-		}
-
-		f := &Field{
-			field: field,
-			value: v.FieldByName(field.Name),
-		}
-
-		fields = append(fields, f)
-
-	}
-
-	return fields
-}
-
-// Field returns a new Field struct that provides several high level functions
-// around a single struct field entity. It panics if the field is not found.
-func (s *Struct) Field(name string) *Field {
-	f, ok := s.FieldOk(name)
-	if !ok {
-		panic("field not found")
-	}
-
-	return f
-}
-
-// FieldOk returns a new Field struct that provides several high level functions
-// around a single struct field entity. The boolean returns true if the field
-// was found.
-func (s *Struct) FieldOk(name string) (*Field, bool) {
-	t := s.value.Type()
-
-	field, ok := t.FieldByName(name)
-	if !ok {
-		return nil, false
-	}
-
-	return &Field{
-		field:      field,
-		value:      s.value.FieldByName(name),
-		defaultTag: s.TagName,
-	}, true
-}
-
-// IsZero returns true if all fields in a struct is a zero value (not
-// initialized) A struct tag with the content of "-" ignores the checking of
-// that particular field. Example:
-//
-//   // Field is ignored by this package.
-//   Field bool `structs:"-"`
-//
-// A value with the option of "omitnested" stops iterating further if the type
-// is a struct. Example:
-//
-//   // Field is not processed further by this package.
-//   Field time.Time     `structs:"myName,omitnested"`
-//   Field *http.Request `structs:",omitnested"`
-//
-// Note that only exported fields of a struct can be accessed, non exported
-// fields  will be neglected. It panics if s's kind is not struct.
-func (s *Struct) IsZero() bool {
-	fields := s.structFields()
-
-	for _, field := range fields {
-		val := s.value.FieldByName(field.Name)
-
-		_, tagOpts := parseTag(field.Tag.Get(s.TagName))
-
-		if IsStruct(val.Interface()) && !tagOpts.Has("omitnested") {
-			ok := IsZero(val.Interface())
-			if !ok {
-				return false
-			}
-
-			continue
-		}
-
-		// zero value of the given field, such as "" for string, 0 for int
-		zero := reflect.Zero(val.Type()).Interface()
-
-		//  current value of the given field
-		current := val.Interface()
-
-		if !reflect.DeepEqual(current, zero) {
-			return false
-		}
-	}
-
-	return true
-}
-
-// HasZero returns true if a field in a struct is not initialized (zero value).
-// A struct tag with the content of "-" ignores the checking of that particular
-// field. Example:
-//
-//   // Field is ignored by this package.
-//   Field bool `structs:"-"`
-//
-// A value with the option of "omitnested" stops iterating further if the type
-// is a struct. Example:
-//
-//   // Field is not processed further by this package.
-//   Field time.Time     `structs:"myName,omitnested"`
-//   Field *http.Request `structs:",omitnested"`
-//
-// Note that only exported fields of a struct can be accessed, non exported
-// fields  will be neglected. It panics if s's kind is not struct.
-func (s *Struct) HasZero() bool {
-	fields := s.structFields()
-
-	for _, field := range fields {
-		val := s.value.FieldByName(field.Name)
-
-		_, tagOpts := parseTag(field.Tag.Get(s.TagName))
-
-		if IsStruct(val.Interface()) && !tagOpts.Has("omitnested") {
-			ok := HasZero(val.Interface())
-			if ok {
-				return true
-			}
-
-			continue
-		}
-
-		// zero value of the given field, such as "" for string, 0 for int
-		zero := reflect.Zero(val.Type()).Interface()
-
-		//  current value of the given field
-		current := val.Interface()
-
-		if reflect.DeepEqual(current, zero) {
-			return true
-		}
-	}
-
-	return false
-}
-
-// Name returns the structs's type name within its package. For more info refer
-// to Name() function.
-func (s *Struct) Name() string {
-	return s.value.Type().Name()
-}
-
-// structFields returns the exported struct fields for a given s struct. This
-// is a convenient helper method to avoid duplicate code in some of the
-// functions.
-func (s *Struct) structFields() []reflect.StructField {
-	t := s.value.Type()
-
-	var f []reflect.StructField
-
-	for i := 0; i < t.NumField(); i++ {
-		field := t.Field(i)
-		// we can't access the value of unexported fields
-		if field.PkgPath != "" {
-			continue
-		}
-
-		// don't check if it's omitted
-		if tag := field.Tag.Get(s.TagName); tag == "-" {
-			continue
-		}
-
-		f = append(f, field)
-	}
-
-	return f
-}
-
-func strctVal(s interface{}) reflect.Value {
-	v := reflect.ValueOf(s)
-
-	// if pointer get the underlying element≤
-	for v.Kind() == reflect.Ptr {
-		v = v.Elem()
-	}
-
-	if v.Kind() != reflect.Struct {
-		panic("not struct")
-	}
-
-	return v
-}
-
-// Map converts the given struct to a map[string]interface{}. For more info
-// refer to Struct types Map() method. It panics if s's kind is not struct.
-func Map(s interface{}) map[string]interface{} {
-	return New(s).Map()
-}
-
-// FillMap is the same as Map. Instead of returning the output, it fills the
-// given map.
-func FillMap(s interface{}, out map[string]interface{}) {
-	New(s).FillMap(out)
-}
-
-// Values converts the given struct to a []interface{}. For more info refer to
-// Struct types Values() method.  It panics if s's kind is not struct.
-func Values(s interface{}) []interface{} {
-	return New(s).Values()
-}
-
-// Fields returns a slice of *Field. For more info refer to Struct types
-// Fields() method.  It panics if s's kind is not struct.
-func Fields(s interface{}) []*Field {
-	return New(s).Fields()
-}
-
-// Names returns a slice of field names. For more info refer to Struct types
-// Names() method.  It panics if s's kind is not struct.
-func Names(s interface{}) []string {
-	return New(s).Names()
-}
-
-// IsZero returns true if all fields is equal to a zero value. For more info
-// refer to Struct types IsZero() method.  It panics if s's kind is not struct.
-func IsZero(s interface{}) bool {
-	return New(s).IsZero()
-}
-
-// HasZero returns true if any field is equal to a zero value. For more info
-// refer to Struct types HasZero() method.  It panics if s's kind is not struct.
-func HasZero(s interface{}) bool {
-	return New(s).HasZero()
-}
-
-// IsStruct returns true if the given variable is a struct or a pointer to
-// struct.
-func IsStruct(s interface{}) bool {
-	v := reflect.ValueOf(s)
-	if v.Kind() == reflect.Ptr {
-		v = v.Elem()
-	}
-
-	// uninitialized zero value of a struct
-	if v.Kind() == reflect.Invalid {
-		return false
-	}
-
-	return v.Kind() == reflect.Struct
-}
-
-// Name returns the structs's type name within its package. It returns an
-// empty string for unnamed types. It panics if s's kind is not struct.
-func Name(s interface{}) string {
-	return New(s).Name()
-}
-
-// nested retrieves recursively all types for the given value and returns the
-// nested value.
-func (s *Struct) nested(val reflect.Value) interface{} {
-	var finalVal interface{}
-
-	v := reflect.ValueOf(val.Interface())
-	if v.Kind() == reflect.Ptr {
-		v = v.Elem()
-	}
-
-	switch v.Kind() {
-	case reflect.Struct:
-		n := New(val.Interface())
-		n.TagName = s.TagName
-		m := n.Map()
-
-		// do not add the converted value if there are no exported fields, ie:
-		// time.Time
-		if len(m) == 0 {
-			finalVal = val.Interface()
-		} else {
-			finalVal = m
-		}
-	case reflect.Map:
-		// get the element type of the map
-		mapElem := val.Type()
-		switch val.Type().Kind() {
-		case reflect.Ptr, reflect.Array, reflect.Map,
-			reflect.Slice, reflect.Chan:
-			mapElem = val.Type().Elem()
-			if mapElem.Kind() == reflect.Ptr {
-				mapElem = mapElem.Elem()
-			}
-		}
-
-		// only iterate over struct types, ie: map[string]StructType,
-		// map[string][]StructType,
-		if mapElem.Kind() == reflect.Struct ||
-			(mapElem.Kind() == reflect.Slice &&
-				mapElem.Elem().Kind() == reflect.Struct) {
-			m := make(map[string]interface{}, val.Len())
-			for _, k := range val.MapKeys() {
-				m[k.String()] = s.nested(val.MapIndex(k))
-			}
-			finalVal = m
-			break
-		}
-
-		// TODO(arslan): should this be optional?
-		finalVal = val.Interface()
-	case reflect.Slice, reflect.Array:
-		if val.Type().Kind() == reflect.Interface {
-			finalVal = val.Interface()
-			break
-		}
-
-		// TODO(arslan): should this be optional?
-		// do not iterate of non struct types, just pass the value. Ie: []int,
-		// []string, co... We only iterate further if it's a struct.
-		// i.e []foo or []*foo
-		if val.Type().Elem().Kind() != reflect.Struct &&
-			!(val.Type().Elem().Kind() == reflect.Ptr &&
-				val.Type().Elem().Elem().Kind() == reflect.Struct) {
-			finalVal = val.Interface()
-			break
-		}
-
-		slices := make([]interface{}, val.Len())
-		for x := 0; x < val.Len(); x++ {
-			slices[x] = s.nested(val.Index(x))
-		}
-		finalVal = slices
-	default:
-		finalVal = val.Interface()
-	}
-
-	return finalVal
-}

vendor/github.com/fatih/structs/tags.go

@@ -1,32 +0,0 @@
-package structs
-
-import "strings"
-
-// tagOptions contains a slice of tag options
-type tagOptions []string
-
-// Has returns true if the given option is available in tagOptions
-func (t tagOptions) Has(opt string) bool {
-	for _, tagOpt := range t {
-		if tagOpt == opt {
-			return true
-		}
-	}
-
-	return false
-}
-
-// parseTag splits a struct field's tag into its name and a list of options
-// which comes after a name. A tag is in the form of: "name,option1,option2".
-// The name can be neglectected.
-func parseTag(tag string) (string, tagOptions) {
-	// tag is one of followings:
-	// ""
-	// "name"
-	// "name,opt"
-	// "name,opt,opt2"
-	// ",opt"
-
-	res := strings.Split(tag, ",")
-	return res[0], res[1:]
-}

vendor/github.com/gorilla/websocket/.gitignore

@@ -1,25 +0,0 @@
-# Compiled Object files, Static and Dynamic libs (Shared Objects)
-*.o
-*.a
-*.so
-
-# Folders
-_obj
-_test
-
-# Architecture specific extensions/prefixes
-*.[568vq]
-[568vq].out
-
-*.cgo1.go
-*.cgo2.c
-_cgo_defun.c
-_cgo_gotypes.go
-_cgo_export.*
-
-_testmain.go
-
-*.exe
-
-.idea/
-*.iml

vendor/github.com/gorilla/websocket/AUTHORS

@@ -1,9 +0,0 @@
-# This is the official list of Gorilla WebSocket authors for copyright
-# purposes.
-#
-# Please keep the list sorted.
-
-Gary Burd <gary@beagledreams.com>
-Google LLC (https://opensource.google.com/)
-Joachim Bauch <mail@joachim-bauch.de>
-

vendor/github.com/gorilla/websocket/LICENSE

@@ -1,22 +0,0 @@
-Copyright (c) 2013 The Gorilla WebSocket Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-  Redistributions of source code must retain the above copyright notice, this
-  list of conditions and the following disclaimer.
-
-  Redistributions in binary form must reproduce the above copyright notice,
-  this list of conditions and the following disclaimer in the documentation
-  and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/gorilla/websocket/README.md

@@ -1,64 +0,0 @@
-# Gorilla WebSocket
-
-[![GoDoc](https://godoc.org/github.com/gorilla/websocket?status.svg)](https://godoc.org/github.com/gorilla/websocket)
-[![CircleCI](https://circleci.com/gh/gorilla/websocket.svg?style=svg)](https://circleci.com/gh/gorilla/websocket)
-
-Gorilla WebSocket is a [Go](http://golang.org/) implementation of the
-[WebSocket](http://www.rfc-editor.org/rfc/rfc6455.txt) protocol.
-
-### Documentation
-
-* [API Reference](http://godoc.org/github.com/gorilla/websocket)
-* [Chat example](https://github.com/gorilla/websocket/tree/master/examples/chat)
-* [Command example](https://github.com/gorilla/websocket/tree/master/examples/command)
-* [Client and server example](https://github.com/gorilla/websocket/tree/master/examples/echo)
-* [File watch example](https://github.com/gorilla/websocket/tree/master/examples/filewatch)
-
-### Status
-
-The Gorilla WebSocket package provides a complete and tested implementation of
-the [WebSocket](http://www.rfc-editor.org/rfc/rfc6455.txt) protocol. The
-package API is stable.
-
-### Installation
-
-    go get github.com/gorilla/websocket
-
-### Protocol Compliance
-
-The Gorilla WebSocket package passes the server tests in the [Autobahn Test
-Suite](https://github.com/crossbario/autobahn-testsuite) using the application in the [examples/autobahn
-subdirectory](https://github.com/gorilla/websocket/tree/master/examples/autobahn).
-
-### Gorilla WebSocket compared with other packages
-
-<table>
-<tr>
-<th></th>
-<th><a href="http://godoc.org/github.com/gorilla/websocket">github.com/gorilla</a></th>
-<th><a href="http://godoc.org/golang.org/x/net/websocket">golang.org/x/net</a></th>
-</tr>
-<tr>
-<tr><td colspan="3"><a href="http://tools.ietf.org/html/rfc6455">RFC 6455</a> Features</td></tr>
-<tr><td>Passes <a href="https://github.com/crossbario/autobahn-testsuite">Autobahn Test Suite</a></td><td><a href="https://github.com/gorilla/websocket/tree/master/examples/autobahn">Yes</a></td><td>No</td></tr>
-<tr><td>Receive <a href="https://tools.ietf.org/html/rfc6455#section-5.4">fragmented</a> message<td>Yes</td><td><a href="https://code.google.com/p/go/issues/detail?id=7632">No</a>, see note 1</td></tr>
-<tr><td>Send <a href="https://tools.ietf.org/html/rfc6455#section-5.5.1">close</a> message</td><td><a href="http://godoc.org/github.com/gorilla/websocket#hdr-Control_Messages">Yes</a></td><td><a href="https://code.google.com/p/go/issues/detail?id=4588">No</a></td></tr>
-<tr><td>Send <a href="https://tools.ietf.org/html/rfc6455#section-5.5.2">pings</a> and receive <a href="https://tools.ietf.org/html/rfc6455#section-5.5.3">pongs</a></td><td><a href="http://godoc.org/github.com/gorilla/websocket#hdr-Control_Messages">Yes</a></td><td>No</td></tr>
-<tr><td>Get the <a href="https://tools.ietf.org/html/rfc6455#section-5.6">type</a> of a received data message</td><td>Yes</td><td>Yes, see note 2</td></tr>
-<tr><td colspan="3">Other Features</tr></td>
-<tr><td><a href="https://tools.ietf.org/html/rfc7692">Compression Extensions</a></td><td>Experimental</td><td>No</td></tr>
-<tr><td>Read message using io.Reader</td><td><a href="http://godoc.org/github.com/gorilla/websocket#Conn.NextReader">Yes</a></td><td>No, see note 3</td></tr>
-<tr><td>Write message using io.WriteCloser</td><td><a href="http://godoc.org/github.com/gorilla/websocket#Conn.NextWriter">Yes</a></td><td>No, see note 3</td></tr>
-</table>
-
-Notes:
-
-1. Large messages are fragmented in [Chrome's new WebSocket implementation](http://www.ietf.org/mail-archive/web/hybi/current/msg10503.html).
-2. The application can get the type of a received data message by implementing
-   a [Codec marshal](http://godoc.org/golang.org/x/net/websocket#Codec.Marshal)
-   function.
-3. The go.net io.Reader and io.Writer operate across WebSocket frame boundaries.
-  Read returns when the input buffer is full or a frame boundary is
-  encountered. Each call to Write sends a single frame message. The Gorilla
-  io.Reader and io.WriteCloser operate on a single WebSocket message.
-

vendor/github.com/gorilla/websocket/client.go

@@ -1,395 +0,0 @@
-// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package websocket
-
-import (
-	"bytes"
-	"context"
-	"crypto/tls"
-	"errors"
-	"io"
-	"io/ioutil"
-	"net"
-	"net/http"
-	"net/http/httptrace"
-	"net/url"
-	"strings"
-	"time"
-)
-
-// ErrBadHandshake is returned when the server response to opening handshake is
-// invalid.
-var ErrBadHandshake = errors.New("websocket: bad handshake")
-
-var errInvalidCompression = errors.New("websocket: invalid compression negotiation")
-
-// NewClient creates a new client connection using the given net connection.
-// The URL u specifies the host and request URI. Use requestHeader to specify
-// the origin (Origin), subprotocols (Sec-WebSocket-Protocol) and cookies
-// (Cookie). Use the response.Header to get the selected subprotocol
-// (Sec-WebSocket-Protocol) and cookies (Set-Cookie).
-//
-// If the WebSocket handshake fails, ErrBadHandshake is returned along with a
-// non-nil *http.Response so that callers can handle redirects, authentication,
-// etc.
-//
-// Deprecated: Use Dialer instead.
-func NewClient(netConn net.Conn, u *url.URL, requestHeader http.Header, readBufSize, writeBufSize int) (c *Conn, response *http.Response, err error) {
-	d := Dialer{
-		ReadBufferSize:  readBufSize,
-		WriteBufferSize: writeBufSize,
-		NetDial: func(net, addr string) (net.Conn, error) {
-			return netConn, nil
-		},
-	}
-	return d.Dial(u.String(), requestHeader)
-}
-
-// A Dialer contains options for connecting to WebSocket server.
-type Dialer struct {
-	// NetDial specifies the dial function for creating TCP connections. If
-	// NetDial is nil, net.Dial is used.
-	NetDial func(network, addr string) (net.Conn, error)
-
-	// NetDialContext specifies the dial function for creating TCP connections. If
-	// NetDialContext is nil, net.DialContext is used.
-	NetDialContext func(ctx context.Context, network, addr string) (net.Conn, error)
-
-	// Proxy specifies a function to return a proxy for a given
-	// Request. If the function returns a non-nil error, the
-	// request is aborted with the provided error.
-	// If Proxy is nil or returns a nil *URL, no proxy is used.
-	Proxy func(*http.Request) (*url.URL, error)
-
-	// TLSClientConfig specifies the TLS configuration to use with tls.Client.
-	// If nil, the default configuration is used.
-	TLSClientConfig *tls.Config
-
-	// HandshakeTimeout specifies the duration for the handshake to complete.
-	HandshakeTimeout time.Duration
-
-	// ReadBufferSize and WriteBufferSize specify I/O buffer sizes in bytes. If a buffer
-	// size is zero, then a useful default size is used. The I/O buffer sizes
-	// do not limit the size of the messages that can be sent or received.
-	ReadBufferSize, WriteBufferSize int
-
-	// WriteBufferPool is a pool of buffers for write operations. If the value
-	// is not set, then write buffers are allocated to the connection for the
-	// lifetime of the connection.
-	//
-	// A pool is most useful when the application has a modest volume of writes
-	// across a large number of connections.
-	//
-	// Applications should use a single pool for each unique value of
-	// WriteBufferSize.
-	WriteBufferPool BufferPool
-
-	// Subprotocols specifies the client's requested subprotocols.
-	Subprotocols []string
-
-	// EnableCompression specifies if the client should attempt to negotiate
-	// per message compression (RFC 7692). Setting this value to true does not
-	// guarantee that compression will be supported. Currently only "no context
-	// takeover" modes are supported.
-	EnableCompression bool
-
-	// Jar specifies the cookie jar.
-	// If Jar is nil, cookies are not sent in requests and ignored
-	// in responses.
-	Jar http.CookieJar
-}
-
-// Dial creates a new client connection by calling DialContext with a background context.
-func (d *Dialer) Dial(urlStr string, requestHeader http.Header) (*Conn, *http.Response, error) {
-	return d.DialContext(context.Background(), urlStr, requestHeader)
-}
-
-var errMalformedURL = errors.New("malformed ws or wss URL")
-
-func hostPortNoPort(u *url.URL) (hostPort, hostNoPort string) {
-	hostPort = u.Host
-	hostNoPort = u.Host
-	if i := strings.LastIndex(u.Host, ":"); i > strings.LastIndex(u.Host, "]") {
-		hostNoPort = hostNoPort[:i]
-	} else {
-		switch u.Scheme {
-		case "wss":
-			hostPort += ":443"
-		case "https":
-			hostPort += ":443"
-		default:
-			hostPort += ":80"
-		}
-	}
-	return hostPort, hostNoPort
-}
-
-// DefaultDialer is a dialer with all fields set to the default values.
-var DefaultDialer = &Dialer{
-	Proxy:            http.ProxyFromEnvironment,
-	HandshakeTimeout: 45 * time.Second,
-}
-
-// nilDialer is dialer to use when receiver is nil.
-var nilDialer = *DefaultDialer
-
-// DialContext creates a new client connection. Use requestHeader to specify the
-// origin (Origin), subprotocols (Sec-WebSocket-Protocol) and cookies (Cookie).
-// Use the response.Header to get the selected subprotocol
-// (Sec-WebSocket-Protocol) and cookies (Set-Cookie).
-//
-// The context will be used in the request and in the Dialer.
-//
-// If the WebSocket handshake fails, ErrBadHandshake is returned along with a
-// non-nil *http.Response so that callers can handle redirects, authentication,
-// etcetera. The response body may not contain the entire response and does not
-// need to be closed by the application.
-func (d *Dialer) DialContext(ctx context.Context, urlStr string, requestHeader http.Header) (*Conn, *http.Response, error) {
-	if d == nil {
-		d = &nilDialer
-	}
-
-	challengeKey, err := generateChallengeKey()
-	if err != nil {
-		return nil, nil, err
-	}
-
-	u, err := url.Parse(urlStr)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	switch u.Scheme {
-	case "ws":
-		u.Scheme = "http"
-	case "wss":
-		u.Scheme = "https"
-	default:
-		return nil, nil, errMalformedURL
-	}
-
-	if u.User != nil {
-		// User name and password are not allowed in websocket URIs.
-		return nil, nil, errMalformedURL
-	}
-
-	req := &http.Request{
-		Method:     "GET",
-		URL:        u,
-		Proto:      "HTTP/1.1",
-		ProtoMajor: 1,
-		ProtoMinor: 1,
-		Header:     make(http.Header),
-		Host:       u.Host,
-	}
-	req = req.WithContext(ctx)
-
-	// Set the cookies present in the cookie jar of the dialer
-	if d.Jar != nil {
-		for _, cookie := range d.Jar.Cookies(u) {
-			req.AddCookie(cookie)
-		}
-	}
-
-	// Set the request headers using the capitalization for names and values in
-	// RFC examples. Although the capitalization shouldn't matter, there are
-	// servers that depend on it. The Header.Set method is not used because the
-	// method canonicalizes the header names.
-	req.Header["Upgrade"] = []string{"websocket"}
-	req.Header["Connection"] = []string{"Upgrade"}
-	req.Header["Sec-WebSocket-Key"] = []string{challengeKey}
-	req.Header["Sec-WebSocket-Version"] = []string{"13"}
-	if len(d.Subprotocols) > 0 {
-		req.Header["Sec-WebSocket-Protocol"] = []string{strings.Join(d.Subprotocols, ", ")}
-	}
-	for k, vs := range requestHeader {
-		switch {
-		case k == "Host":
-			if len(vs) > 0 {
-				req.Host = vs[0]
-			}
-		case k == "Upgrade" ||
-			k == "Connection" ||
-			k == "Sec-Websocket-Key" ||
-			k == "Sec-Websocket-Version" ||
-			k == "Sec-Websocket-Extensions" ||
-			(k == "Sec-Websocket-Protocol" && len(d.Subprotocols) > 0):
-			return nil, nil, errors.New("websocket: duplicate header not allowed: " + k)
-		case k == "Sec-Websocket-Protocol":
-			req.Header["Sec-WebSocket-Protocol"] = vs
-		default:
-			req.Header[k] = vs
-		}
-	}
-
-	if d.EnableCompression {
-		req.Header["Sec-WebSocket-Extensions"] = []string{"permessage-deflate; server_no_context_takeover; client_no_context_takeover"}
-	}
-
-	if d.HandshakeTimeout != 0 {
-		var cancel func()
-		ctx, cancel = context.WithTimeout(ctx, d.HandshakeTimeout)
-		defer cancel()
-	}
-
-	// Get network dial function.
-	var netDial func(network, add string) (net.Conn, error)
-
-	if d.NetDialContext != nil {
-		netDial = func(network, addr string) (net.Conn, error) {
-			return d.NetDialContext(ctx, network, addr)
-		}
-	} else if d.NetDial != nil {
-		netDial = d.NetDial
-	} else {
-		netDialer := &net.Dialer{}
-		netDial = func(network, addr string) (net.Conn, error) {
-			return netDialer.DialContext(ctx, network, addr)
-		}
-	}
-
-	// If needed, wrap the dial function to set the connection deadline.
-	if deadline, ok := ctx.Deadline(); ok {
-		forwardDial := netDial
-		netDial = func(network, addr string) (net.Conn, error) {
-			c, err := forwardDial(network, addr)
-			if err != nil {
-				return nil, err
-			}
-			err = c.SetDeadline(deadline)
-			if err != nil {
-				c.Close()
-				return nil, err
-			}
-			return c, nil
-		}
-	}
-
-	// If needed, wrap the dial function to connect through a proxy.
-	if d.Proxy != nil {
-		proxyURL, err := d.Proxy(req)
-		if err != nil {
-			return nil, nil, err
-		}
-		if proxyURL != nil {
-			dialer, err := proxy_FromURL(proxyURL, netDialerFunc(netDial))
-			if err != nil {
-				return nil, nil, err
-			}
-			netDial = dialer.Dial
-		}
-	}
-
-	hostPort, hostNoPort := hostPortNoPort(u)
-	trace := httptrace.ContextClientTrace(ctx)
-	if trace != nil && trace.GetConn != nil {
-		trace.GetConn(hostPort)
-	}
-
-	netConn, err := netDial("tcp", hostPort)
-	if trace != nil && trace.GotConn != nil {
-		trace.GotConn(httptrace.GotConnInfo{
-			Conn: netConn,
-		})
-	}
-	if err != nil {
-		return nil, nil, err
-	}
-
-	defer func() {
-		if netConn != nil {
-			netConn.Close()
-		}
-	}()
-
-	if u.Scheme == "https" {
-		cfg := cloneTLSConfig(d.TLSClientConfig)
-		if cfg.ServerName == "" {
-			cfg.ServerName = hostNoPort
-		}
-		tlsConn := tls.Client(netConn, cfg)
-		netConn = tlsConn
-
-		var err error
-		if trace != nil {
-			err = doHandshakeWithTrace(trace, tlsConn, cfg)
-		} else {
-			err = doHandshake(tlsConn, cfg)
-		}
-
-		if err != nil {
-			return nil, nil, err
-		}
-	}
-
-	conn := newConn(netConn, false, d.ReadBufferSize, d.WriteBufferSize, d.WriteBufferPool, nil, nil)
-
-	if err := req.Write(netConn); err != nil {
-		return nil, nil, err
-	}
-
-	if trace != nil && trace.GotFirstResponseByte != nil {
-		if peek, err := conn.br.Peek(1); err == nil && len(peek) == 1 {
-			trace.GotFirstResponseByte()
-		}
-	}
-
-	resp, err := http.ReadResponse(conn.br, req)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	if d.Jar != nil {
-		if rc := resp.Cookies(); len(rc) > 0 {
-			d.Jar.SetCookies(u, rc)
-		}
-	}
-
-	if resp.StatusCode != 101 ||
-		!strings.EqualFold(resp.Header.Get("Upgrade"), "websocket") ||
-		!strings.EqualFold(resp.Header.Get("Connection"), "upgrade") ||
-		resp.Header.Get("Sec-Websocket-Accept") != computeAcceptKey(challengeKey) {
-		// Before closing the network connection on return from this
-		// function, slurp up some of the response to aid application
-		// debugging.
-		buf := make([]byte, 1024)
-		n, _ := io.ReadFull(resp.Body, buf)
-		resp.Body = ioutil.NopCloser(bytes.NewReader(buf[:n]))
-		return nil, resp, ErrBadHandshake
-	}
-
-	for _, ext := range parseExtensions(resp.Header) {
-		if ext[""] != "permessage-deflate" {
-			continue
-		}
-		_, snct := ext["server_no_context_takeover"]
-		_, cnct := ext["client_no_context_takeover"]
-		if !snct || !cnct {
-			return nil, resp, errInvalidCompression
-		}
-		conn.newCompressionWriter = compressNoContextTakeover
-		conn.newDecompressionReader = decompressNoContextTakeover
-		break
-	}
-
-	resp.Body = ioutil.NopCloser(bytes.NewReader([]byte{}))
-	conn.subprotocol = resp.Header.Get("Sec-Websocket-Protocol")
-
-	netConn.SetDeadline(time.Time{})
-	netConn = nil // to avoid close in defer.
-	return conn, resp, nil
-}
-
-func doHandshake(tlsConn *tls.Conn, cfg *tls.Config) error {
-	if err := tlsConn.Handshake(); err != nil {
-		return err
-	}
-	if !cfg.InsecureSkipVerify {
-		if err := tlsConn.VerifyHostname(cfg.ServerName); err != nil {
-			return err
-		}
-	}
-	return nil
-}

vendor/github.com/gorilla/websocket/client_clone.go

@@ -1,16 +0,0 @@
-// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.8
-
-package websocket
-
-import "crypto/tls"
-
-func cloneTLSConfig(cfg *tls.Config) *tls.Config {
-	if cfg == nil {
-		return &tls.Config{}
-	}
-	return cfg.Clone()
-}

vendor/github.com/gorilla/websocket/client_clone_legacy.go

@@ -1,38 +0,0 @@
-// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !go1.8
-
-package websocket
-
-import "crypto/tls"
-
-// cloneTLSConfig clones all public fields except the fields
-// SessionTicketsDisabled and SessionTicketKey. This avoids copying the
-// sync.Mutex in the sync.Once and makes it safe to call cloneTLSConfig on a
-// config in active use.
-func cloneTLSConfig(cfg *tls.Config) *tls.Config {
-	if cfg == nil {
-		return &tls.Config{}
-	}
-	return &tls.Config{
-		Rand:                     cfg.Rand,
-		Time:                     cfg.Time,
-		Certificates:             cfg.Certificates,
-		NameToCertificate:        cfg.NameToCertificate,
-		GetCertificate:           cfg.GetCertificate,
-		RootCAs:                  cfg.RootCAs,
-		NextProtos:               cfg.NextProtos,
-		ServerName:               cfg.ServerName,
-		ClientAuth:               cfg.ClientAuth,
-		ClientCAs:                cfg.ClientCAs,
-		InsecureSkipVerify:       cfg.InsecureSkipVerify,
-		CipherSuites:             cfg.CipherSuites,
-		PreferServerCipherSuites: cfg.PreferServerCipherSuites,
-		ClientSessionCache:       cfg.ClientSessionCache,
-		MinVersion:               cfg.MinVersion,
-		MaxVersion:               cfg.MaxVersion,
-		CurvePreferences:         cfg.CurvePreferences,
-	}
-}

vendor/github.com/gorilla/websocket/compression.go

@@ -1,148 +0,0 @@
-// Copyright 2017 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package websocket
-
-import (
-	"compress/flate"
-	"errors"
-	"io"
-	"strings"
-	"sync"
-)
-
-const (
-	minCompressionLevel     = -2 // flate.HuffmanOnly not defined in Go < 1.6
-	maxCompressionLevel     = flate.BestCompression
-	defaultCompressionLevel = 1
-)
-
-var (
-	flateWriterPools [maxCompressionLevel - minCompressionLevel + 1]sync.Pool
-	flateReaderPool  = sync.Pool{New: func() interface{} {
-		return flate.NewReader(nil)
-	}}
-)
-
-func decompressNoContextTakeover(r io.Reader) io.ReadCloser {
-	const tail =
-	// Add four bytes as specified in RFC
-	"\x00\x00\xff\xff" +
-		// Add final block to squelch unexpected EOF error from flate reader.
-		"\x01\x00\x00\xff\xff"
-
-	fr, _ := flateReaderPool.Get().(io.ReadCloser)
-	fr.(flate.Resetter).Reset(io.MultiReader(r, strings.NewReader(tail)), nil)
-	return &flateReadWrapper{fr}
-}
-
-func isValidCompressionLevel(level int) bool {
-	return minCompressionLevel <= level && level <= maxCompressionLevel
-}
-
-func compressNoContextTakeover(w io.WriteCloser, level int) io.WriteCloser {
-	p := &flateWriterPools[level-minCompressionLevel]
-	tw := &truncWriter{w: w}
-	fw, _ := p.Get().(*flate.Writer)
-	if fw == nil {
-		fw, _ = flate.NewWriter(tw, level)
-	} else {
-		fw.Reset(tw)
-	}
-	return &flateWriteWrapper{fw: fw, tw: tw, p: p}
-}
-
-// truncWriter is an io.Writer that writes all but the last four bytes of the
-// stream to another io.Writer.
-type truncWriter struct {
-	w io.WriteCloser
-	n int
-	p [4]byte
-}
-
-func (w *truncWriter) Write(p []byte) (int, error) {
-	n := 0
-
-	// fill buffer first for simplicity.
-	if w.n < len(w.p) {
-		n = copy(w.p[w.n:], p)
-		p = p[n:]
-		w.n += n
-		if len(p) == 0 {
-			return n, nil
-		}
-	}
-
-	m := len(p)
-	if m > len(w.p) {
-		m = len(w.p)
-	}
-
-	if nn, err := w.w.Write(w.p[:m]); err != nil {
-		return n + nn, err
-	}
-
-	copy(w.p[:], w.p[m:])
-	copy(w.p[len(w.p)-m:], p[len(p)-m:])
-	nn, err := w.w.Write(p[:len(p)-m])
-	return n + nn, err
-}
-
-type flateWriteWrapper struct {
-	fw *flate.Writer
-	tw *truncWriter
-	p  *sync.Pool
-}
-
-func (w *flateWriteWrapper) Write(p []byte) (int, error) {
-	if w.fw == nil {
-		return 0, errWriteClosed
-	}
-	return w.fw.Write(p)
-}
-
-func (w *flateWriteWrapper) Close() error {
-	if w.fw == nil {
-		return errWriteClosed
-	}
-	err1 := w.fw.Flush()
-	w.p.Put(w.fw)
-	w.fw = nil
-	if w.tw.p != [4]byte{0, 0, 0xff, 0xff} {
-		return errors.New("websocket: internal error, unexpected bytes at end of flate stream")
-	}
-	err2 := w.tw.w.Close()
-	if err1 != nil {
-		return err1
-	}
-	return err2
-}
-
-type flateReadWrapper struct {
-	fr io.ReadCloser
-}
-
-func (r *flateReadWrapper) Read(p []byte) (int, error) {
-	if r.fr == nil {
-		return 0, io.ErrClosedPipe
-	}
-	n, err := r.fr.Read(p)
-	if err == io.EOF {
-		// Preemptively place the reader back in the pool. This helps with
-		// scenarios where the application does not call NextReader() soon after
-		// this final read.
-		r.Close()
-	}
-	return n, err
-}
-
-func (r *flateReadWrapper) Close() error {
-	if r.fr == nil {
-		return io.ErrClosedPipe
-	}
-	err := r.fr.Close()
-	flateReaderPool.Put(r.fr)
-	r.fr = nil
-	return err
-}

vendor/github.com/gorilla/websocket/conn_write.go

@@ -1,15 +0,0 @@
-// Copyright 2016 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.8
-
-package websocket
-
-import "net"
-
-func (c *Conn) writeBufs(bufs ...[]byte) error {
-	b := net.Buffers(bufs)
-	_, err := b.WriteTo(c.conn)
-	return err
-}

vendor/github.com/gorilla/websocket/conn_write_legacy.go

@@ -1,18 +0,0 @@
-// Copyright 2016 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !go1.8
-
-package websocket
-
-func (c *Conn) writeBufs(bufs ...[]byte) error {
-	for _, buf := range bufs {
-		if len(buf) > 0 {
-			if _, err := c.conn.Write(buf); err != nil {
-				return err
-			}
-		}
-	}
-	return nil
-}

vendor/github.com/gorilla/websocket/doc.go

@@ -1,227 +0,0 @@
-// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package websocket implements the WebSocket protocol defined in RFC 6455.
-//
-// Overview
-//
-// The Conn type represents a WebSocket connection. A server application calls
-// the Upgrader.Upgrade method from an HTTP request handler to get a *Conn:
-//
-//  var upgrader = websocket.Upgrader{
-//      ReadBufferSize:  1024,
-//      WriteBufferSize: 1024,
-//  }
-//
-//  func handler(w http.ResponseWriter, r *http.Request) {
-//      conn, err := upgrader.Upgrade(w, r, nil)
-//      if err != nil {
-//          log.Println(err)
-//          return
-//      }
-//      ... Use conn to send and receive messages.
-//  }
-//
-// Call the connection's WriteMessage and ReadMessage methods to send and
-// receive messages as a slice of bytes. This snippet of code shows how to echo
-// messages using these methods:
-//
-//  for {
-//      messageType, p, err := conn.ReadMessage()
-//      if err != nil {
-//          log.Println(err)
-//          return
-//      }
-//      if err := conn.WriteMessage(messageType, p); err != nil {
-//          log.Println(err)
-//          return
-//      }
-//  }
-//
-// In above snippet of code, p is a []byte and messageType is an int with value
-// websocket.BinaryMessage or websocket.TextMessage.
-//
-// An application can also send and receive messages using the io.WriteCloser
-// and io.Reader interfaces. To send a message, call the connection NextWriter
-// method to get an io.WriteCloser, write the message to the writer and close
-// the writer when done. To receive a message, call the connection NextReader
-// method to get an io.Reader and read until io.EOF is returned. This snippet
-// shows how to echo messages using the NextWriter and NextReader methods:
-//
-//  for {
-//      messageType, r, err := conn.NextReader()
-//      if err != nil {
-//          return
-//      }
-//      w, err := conn.NextWriter(messageType)
-//      if err != nil {
-//          return err
-//      }
-//      if _, err := io.Copy(w, r); err != nil {
-//          return err
-//      }
-//      if err := w.Close(); err != nil {
-//          return err
-//      }
-//  }
-//
-// Data Messages
-//
-// The WebSocket protocol distinguishes between text and binary data messages.
-// Text messages are interpreted as UTF-8 encoded text. The interpretation of
-// binary messages is left to the application.
-//
-// This package uses the TextMessage and BinaryMessage integer constants to
-// identify the two data message types. The ReadMessage and NextReader methods
-// return the type of the received message. The messageType argument to the
-// WriteMessage and NextWriter methods specifies the type of a sent message.
-//
-// It is the application's responsibility to ensure that text messages are
-// valid UTF-8 encoded text.
-//
-// Control Messages
-//
-// The WebSocket protocol defines three types of control messages: close, ping
-// and pong. Call the connection WriteControl, WriteMessage or NextWriter
-// methods to send a control message to the peer.
-//
-// Connections handle received close messages by calling the handler function
-// set with the SetCloseHandler method and by returning a *CloseError from the
-// NextReader, ReadMessage or the message Read method. The default close
-// handler sends a close message to the peer.
-//
-// Connections handle received ping messages by calling the handler function
-// set with the SetPingHandler method. The default ping handler sends a pong
-// message to the peer.
-//
-// Connections handle received pong messages by calling the handler function
-// set with the SetPongHandler method. The default pong handler does nothing.
-// If an application sends ping messages, then the application should set a
-// pong handler to receive the corresponding pong.
-//
-// The control message handler functions are called from the NextReader,
-// ReadMessage and message reader Read methods. The default close and ping
-// handlers can block these methods for a short time when the handler writes to
-// the connection.
-//
-// The application must read the connection to process close, ping and pong
-// messages sent from the peer. If the application is not otherwise interested
-// in messages from the peer, then the application should start a goroutine to
-// read and discard messages from the peer. A simple example is:
-//
-//  func readLoop(c *websocket.Conn) {
-//      for {
-//          if _, _, err := c.NextReader(); err != nil {
-//              c.Close()
-//              break
-//          }
-//      }
-//  }
-//
-// Concurrency
-//
-// Connections support one concurrent reader and one concurrent writer.
-//
-// Applications are responsible for ensuring that no more than one goroutine
-// calls the write methods (NextWriter, SetWriteDeadline, WriteMessage,
-// WriteJSON, EnableWriteCompression, SetCompressionLevel) concurrently and
-// that no more than one goroutine calls the read methods (NextReader,
-// SetReadDeadline, ReadMessage, ReadJSON, SetPongHandler, SetPingHandler)
-// concurrently.
-//
-// The Close and WriteControl methods can be called concurrently with all other
-// methods.
-//
-// Origin Considerations
-//
-// Web browsers allow Javascript applications to open a WebSocket connection to
-// any host. It's up to the server to enforce an origin policy using the Origin
-// request header sent by the browser.
-//
-// The Upgrader calls the function specified in the CheckOrigin field to check
-// the origin. If the CheckOrigin function returns false, then the Upgrade
-// method fails the WebSocket handshake with HTTP status 403.
-//
-// If the CheckOrigin field is nil, then the Upgrader uses a safe default: fail
-// the handshake if the Origin request header is present and the Origin host is
-// not equal to the Host request header.
-//
-// The deprecated package-level Upgrade function does not perform origin
-// checking. The application is responsible for checking the Origin header
-// before calling the Upgrade function.
-//
-// Buffers
-//
-// Connections buffer network input and output to reduce the number
-// of system calls when reading or writing messages.
-//
-// Write buffers are also used for constructing WebSocket frames. See RFC 6455,
-// Section 5 for a discussion of message framing. A WebSocket frame header is
-// written to the network each time a write buffer is flushed to the network.
-// Decreasing the size of the write buffer can increase the amount of framing
-// overhead on the connection.
-//
-// The buffer sizes in bytes are specified by the ReadBufferSize and
-// WriteBufferSize fields in the Dialer and Upgrader. The Dialer uses a default
-// size of 4096 when a buffer size field is set to zero. The Upgrader reuses
-// buffers created by the HTTP server when a buffer size field is set to zero.
-// The HTTP server buffers have a size of 4096 at the time of this writing.
-//
-// The buffer sizes do not limit the size of a message that can be read or
-// written by a connection.
-//
-// Buffers are held for the lifetime of the connection by default. If the
-// Dialer or Upgrader WriteBufferPool field is set, then a connection holds the
-// write buffer only when writing a message.
-//
-// Applications should tune the buffer sizes to balance memory use and
-// performance. Increasing the buffer size uses more memory, but can reduce the
-// number of system calls to read or write the network. In the case of writing,
-// increasing the buffer size can reduce the number of frame headers written to
-// the network.
-//
-// Some guidelines for setting buffer parameters are:
-//
-// Limit the buffer sizes to the maximum expected message size. Buffers larger
-// than the largest message do not provide any benefit.
-//
-// Depending on the distribution of message sizes, setting the buffer size to
-// to a value less than the maximum expected message size can greatly reduce
-// memory use with a small impact on performance. Here's an example: If 99% of
-// the messages are smaller than 256 bytes and the maximum message size is 512
-// bytes, then a buffer size of 256 bytes will result in 1.01 more system calls
-// than a buffer size of 512 bytes. The memory savings is 50%.
-//
-// A write buffer pool is useful when the application has a modest number
-// writes over a large number of connections. when buffers are pooled, a larger
-// buffer size has a reduced impact on total memory use and has the benefit of
-// reducing system calls and frame overhead.
-//
-// Compression EXPERIMENTAL
-//
-// Per message compression extensions (RFC 7692) are experimentally supported
-// by this package in a limited capacity. Setting the EnableCompression option
-// to true in Dialer or Upgrader will attempt to negotiate per message deflate
-// support.
-//
-//  var upgrader = websocket.Upgrader{
-//      EnableCompression: true,
-//  }
-//
-// If compression was successfully negotiated with the connection's peer, any
-// message received in compressed form will be automatically decompressed.
-// All Read methods will return uncompressed bytes.
-//
-// Per message compression of messages written to a connection can be enabled
-// or disabled by calling the corresponding Conn method:
-//
-//  conn.EnableWriteCompression(false)
-//
-// Currently this package does not support compression with "context takeover".
-// This means that messages must be compressed and decompressed in isolation,
-// without retaining sliding window or dictionary state across messages. For
-// more details refer to RFC 7692.
-//
-// Use of compression is experimental and may result in decreased performance.
-package websocket

vendor/github.com/gorilla/websocket/go.mod

@@ -1,3 +0,0 @@
-module github.com/gorilla/websocket
-
-go 1.12

vendor/github.com/gorilla/websocket/go.sum

@@ -1,2 +0,0 @@
-github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=
-github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=

vendor/github.com/gorilla/websocket/join.go

@@ -1,42 +0,0 @@
-// Copyright 2019 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package websocket
-
-import (
-	"io"
-	"strings"
-)
-
-// JoinMessages concatenates received messages to create a single io.Reader.
-// The string term is appended to each message. The returned reader does not
-// support concurrent calls to the Read method.
-func JoinMessages(c *Conn, term string) io.Reader {
-	return &joinReader{c: c, term: term}
-}
-
-type joinReader struct {
-	c    *Conn
-	term string
-	r    io.Reader
-}
-
-func (r *joinReader) Read(p []byte) (int, error) {
-	if r.r == nil {
-		var err error
-		_, r.r, err = r.c.NextReader()
-		if err != nil {
-			return 0, err
-		}
-		if r.term != "" {
-			r.r = io.MultiReader(r.r, strings.NewReader(r.term))
-		}
-	}
-	n, err := r.r.Read(p)
-	if err == io.EOF {
-		err = nil
-		r.r = nil
-	}
-	return n, err
-}

vendor/github.com/gorilla/websocket/json.go

@@ -1,60 +0,0 @@
-// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package websocket
-
-import (
-	"encoding/json"
-	"io"
-)
-
-// WriteJSON writes the JSON encoding of v as a message.
-//
-// Deprecated: Use c.WriteJSON instead.
-func WriteJSON(c *Conn, v interface{}) error {
-	return c.WriteJSON(v)
-}
-
-// WriteJSON writes the JSON encoding of v as a message.
-//
-// See the documentation for encoding/json Marshal for details about the
-// conversion of Go values to JSON.
-func (c *Conn) WriteJSON(v interface{}) error {
-	w, err := c.NextWriter(TextMessage)
-	if err != nil {
-		return err
-	}
-	err1 := json.NewEncoder(w).Encode(v)
-	err2 := w.Close()
-	if err1 != nil {
-		return err1
-	}
-	return err2
-}
-
-// ReadJSON reads the next JSON-encoded message from the connection and stores
-// it in the value pointed to by v.
-//
-// Deprecated: Use c.ReadJSON instead.
-func ReadJSON(c *Conn, v interface{}) error {
-	return c.ReadJSON(v)
-}
-
-// ReadJSON reads the next JSON-encoded message from the connection and stores
-// it in the value pointed to by v.
-//
-// See the documentation for the encoding/json Unmarshal function for details
-// about the conversion of JSON to a Go value.
-func (c *Conn) ReadJSON(v interface{}) error {
-	_, r, err := c.NextReader()
-	if err != nil {
-		return err
-	}
-	err = json.NewDecoder(r).Decode(v)
-	if err == io.EOF {
-		// One value is expected in the message.
-		err = io.ErrUnexpectedEOF
-	}
-	return err
-}

vendor/github.com/gorilla/websocket/mask.go

@@ -1,54 +0,0 @@
-// Copyright 2016 The Gorilla WebSocket Authors. All rights reserved.  Use of
-// this source code is governed by a BSD-style license that can be found in the
-// LICENSE file.
-
-// +build !appengine
-
-package websocket
-
-import "unsafe"
-
-const wordSize = int(unsafe.Sizeof(uintptr(0)))
-
-func maskBytes(key [4]byte, pos int, b []byte) int {
-	// Mask one byte at a time for small buffers.
-	if len(b) < 2*wordSize {
-		for i := range b {
-			b[i] ^= key[pos&3]
-			pos++
-		}
-		return pos & 3
-	}
-
-	// Mask one byte at a time to word boundary.
-	if n := int(uintptr(unsafe.Pointer(&b[0]))) % wordSize; n != 0 {
-		n = wordSize - n
-		for i := range b[:n] {
-			b[i] ^= key[pos&3]
-			pos++
-		}
-		b = b[n:]
-	}
-
-	// Create aligned word size key.
-	var k [wordSize]byte
-	for i := range k {
-		k[i] = key[(pos+i)&3]
-	}
-	kw := *(*uintptr)(unsafe.Pointer(&k))
-
-	// Mask one word at a time.
-	n := (len(b) / wordSize) * wordSize
-	for i := 0; i < n; i += wordSize {
-		*(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&b[0])) + uintptr(i))) ^= kw
-	}
-
-	// Mask one byte at a time for remaining bytes.
-	b = b[n:]
-	for i := range b {
-		b[i] ^= key[pos&3]
-		pos++
-	}
-
-	return pos & 3
-}

vendor/github.com/gorilla/websocket/mask_safe.go

@@ -1,15 +0,0 @@
-// Copyright 2016 The Gorilla WebSocket Authors. All rights reserved.  Use of
-// this source code is governed by a BSD-style license that can be found in the
-// LICENSE file.
-
-// +build appengine
-
-package websocket
-
-func maskBytes(key [4]byte, pos int, b []byte) int {
-	for i := range b {
-		b[i] ^= key[pos&3]
-		pos++
-	}
-	return pos & 3
-}

vendor/github.com/gorilla/websocket/prepared.go

@@ -1,102 +0,0 @@
-// Copyright 2017 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package websocket
-
-import (
-	"bytes"
-	"net"
-	"sync"
-	"time"
-)
-
-// PreparedMessage caches on the wire representations of a message payload.
-// Use PreparedMessage to efficiently send a message payload to multiple
-// connections. PreparedMessage is especially useful when compression is used
-// because the CPU and memory expensive compression operation can be executed
-// once for a given set of compression options.
-type PreparedMessage struct {
-	messageType int
-	data        []byte
-	mu          sync.Mutex
-	frames      map[prepareKey]*preparedFrame
-}
-
-// prepareKey defines a unique set of options to cache prepared frames in PreparedMessage.
-type prepareKey struct {
-	isServer         bool
-	compress         bool
-	compressionLevel int
-}
-
-// preparedFrame contains data in wire representation.
-type preparedFrame struct {
-	once sync.Once
-	data []byte
-}
-
-// NewPreparedMessage returns an initialized PreparedMessage. You can then send
-// it to connection using WritePreparedMessage method. Valid wire
-// representation will be calculated lazily only once for a set of current
-// connection options.
-func NewPreparedMessage(messageType int, data []byte) (*PreparedMessage, error) {
-	pm := &PreparedMessage{
-		messageType: messageType,
-		frames:      make(map[prepareKey]*preparedFrame),
-		data:        data,
-	}
-
-	// Prepare a plain server frame.
-	_, frameData, err := pm.frame(prepareKey{isServer: true, compress: false})
-	if err != nil {
-		return nil, err
-	}
-
-	// To protect against caller modifying the data argument, remember the data
-	// copied to the plain server frame.
-	pm.data = frameData[len(frameData)-len(data):]
-	return pm, nil
-}
-
-func (pm *PreparedMessage) frame(key prepareKey) (int, []byte, error) {
-	pm.mu.Lock()
-	frame, ok := pm.frames[key]
-	if !ok {
-		frame = &preparedFrame{}
-		pm.frames[key] = frame
-	}
-	pm.mu.Unlock()
-
-	var err error
-	frame.once.Do(func() {
-		// Prepare a frame using a 'fake' connection.
-		// TODO: Refactor code in conn.go to allow more direct construction of
-		// the frame.
-		mu := make(chan bool, 1)
-		mu <- true
-		var nc prepareConn
-		c := &Conn{
-			conn:                   &nc,
-			mu:                     mu,
-			isServer:               key.isServer,
-			compressionLevel:       key.compressionLevel,
-			enableWriteCompression: true,
-			writeBuf:               make([]byte, defaultWriteBufferSize+maxFrameHeaderSize),
-		}
-		if key.compress {
-			c.newCompressionWriter = compressNoContextTakeover
-		}
-		err = c.WriteMessage(pm.messageType, pm.data)
-		frame.data = nc.buf.Bytes()
-	})
-	return pm.messageType, frame.data, err
-}
-
-type prepareConn struct {
-	buf bytes.Buffer
-	net.Conn
-}
-
-func (pc *prepareConn) Write(p []byte) (int, error)        { return pc.buf.Write(p) }
-func (pc *prepareConn) SetWriteDeadline(t time.Time) error { return nil }

vendor/github.com/gorilla/websocket/proxy.go

@@ -1,77 +0,0 @@
-// Copyright 2017 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package websocket
-
-import (
-	"bufio"
-	"encoding/base64"
-	"errors"
-	"net"
-	"net/http"
-	"net/url"
-	"strings"
-)
-
-type netDialerFunc func(network, addr string) (net.Conn, error)
-
-func (fn netDialerFunc) Dial(network, addr string) (net.Conn, error) {
-	return fn(network, addr)
-}
-
-func init() {
-	proxy_RegisterDialerType("http", func(proxyURL *url.URL, forwardDialer proxy_Dialer) (proxy_Dialer, error) {
-		return &httpProxyDialer{proxyURL: proxyURL, forwardDial: forwardDialer.Dial}, nil
-	})
-}
-
-type httpProxyDialer struct {
-	proxyURL    *url.URL
-	forwardDial func(network, addr string) (net.Conn, error)
-}
-
-func (hpd *httpProxyDialer) Dial(network string, addr string) (net.Conn, error) {
-	hostPort, _ := hostPortNoPort(hpd.proxyURL)
-	conn, err := hpd.forwardDial(network, hostPort)
-	if err != nil {
-		return nil, err
-	}
-
-	connectHeader := make(http.Header)
-	if user := hpd.proxyURL.User; user != nil {
-		proxyUser := user.Username()
-		if proxyPassword, passwordSet := user.Password(); passwordSet {
-			credential := base64.StdEncoding.EncodeToString([]byte(proxyUser + ":" + proxyPassword))
-			connectHeader.Set("Proxy-Authorization", "Basic "+credential)
-		}
-	}
-
-	connectReq := &http.Request{
-		Method: "CONNECT",
-		URL:    &url.URL{Opaque: addr},
-		Host:   addr,
-		Header: connectHeader,
-	}
-
-	if err := connectReq.Write(conn); err != nil {
-		conn.Close()
-		return nil, err
-	}
-
-	// Read response. It's OK to use and discard buffered reader here becaue
-	// the remote server does not speak until spoken to.
-	br := bufio.NewReader(conn)
-	resp, err := http.ReadResponse(br, connectReq)
-	if err != nil {
-		conn.Close()
-		return nil, err
-	}
-
-	if resp.StatusCode != 200 {
-		conn.Close()
-		f := strings.SplitN(resp.Status, " ", 2)
-		return nil, errors.New(f[1])
-	}
-	return conn, nil
-}

vendor/github.com/gorilla/websocket/server.go

@@ -1,363 +0,0 @@
-// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package websocket
-
-import (
-	"bufio"
-	"errors"
-	"io"
-	"net/http"
-	"net/url"
-	"strings"
-	"time"
-)
-
-// HandshakeError describes an error with the handshake from the peer.
-type HandshakeError struct {
-	message string
-}
-
-func (e HandshakeError) Error() string { return e.message }
-
-// Upgrader specifies parameters for upgrading an HTTP connection to a
-// WebSocket connection.
-type Upgrader struct {
-	// HandshakeTimeout specifies the duration for the handshake to complete.
-	HandshakeTimeout time.Duration
-
-	// ReadBufferSize and WriteBufferSize specify I/O buffer sizes in bytes. If a buffer
-	// size is zero, then buffers allocated by the HTTP server are used. The
-	// I/O buffer sizes do not limit the size of the messages that can be sent
-	// or received.
-	ReadBufferSize, WriteBufferSize int
-
-	// WriteBufferPool is a pool of buffers for write operations. If the value
-	// is not set, then write buffers are allocated to the connection for the
-	// lifetime of the connection.
-	//
-	// A pool is most useful when the application has a modest volume of writes
-	// across a large number of connections.
-	//
-	// Applications should use a single pool for each unique value of
-	// WriteBufferSize.
-	WriteBufferPool BufferPool
-
-	// Subprotocols specifies the server's supported protocols in order of
-	// preference. If this field is not nil, then the Upgrade method negotiates a
-	// subprotocol by selecting the first match in this list with a protocol
-	// requested by the client. If there's no match, then no protocol is
-	// negotiated (the Sec-Websocket-Protocol header is not included in the
-	// handshake response).
-	Subprotocols []string
-
-	// Error specifies the function for generating HTTP error responses. If Error
-	// is nil, then http.Error is used to generate the HTTP response.
-	Error func(w http.ResponseWriter, r *http.Request, status int, reason error)
-
-	// CheckOrigin returns true if the request Origin header is acceptable. If
-	// CheckOrigin is nil, then a safe default is used: return false if the
-	// Origin request header is present and the origin host is not equal to
-	// request Host header.
-	//
-	// A CheckOrigin function should carefully validate the request origin to
-	// prevent cross-site request forgery.
-	CheckOrigin func(r *http.Request) bool
-
-	// EnableCompression specify if the server should attempt to negotiate per
-	// message compression (RFC 7692). Setting this value to true does not
-	// guarantee that compression will be supported. Currently only "no context
-	// takeover" modes are supported.
-	EnableCompression bool
-}
-
-func (u *Upgrader) returnError(w http.ResponseWriter, r *http.Request, status int, reason string) (*Conn, error) {
-	err := HandshakeError{reason}
-	if u.Error != nil {
-		u.Error(w, r, status, err)
-	} else {
-		w.Header().Set("Sec-Websocket-Version", "13")
-		http.Error(w, http.StatusText(status), status)
-	}
-	return nil, err
-}
-
-// checkSameOrigin returns true if the origin is not set or is equal to the request host.
-func checkSameOrigin(r *http.Request) bool {
-	origin := r.Header["Origin"]
-	if len(origin) == 0 {
-		return true
-	}
-	u, err := url.Parse(origin[0])
-	if err != nil {
-		return false
-	}
-	return equalASCIIFold(u.Host, r.Host)
-}
-
-func (u *Upgrader) selectSubprotocol(r *http.Request, responseHeader http.Header) string {
-	if u.Subprotocols != nil {
-		clientProtocols := Subprotocols(r)
-		for _, serverProtocol := range u.Subprotocols {
-			for _, clientProtocol := range clientProtocols {
-				if clientProtocol == serverProtocol {
-					return clientProtocol
-				}
-			}
-		}
-	} else if responseHeader != nil {
-		return responseHeader.Get("Sec-Websocket-Protocol")
-	}
-	return ""
-}
-
-// Upgrade upgrades the HTTP server connection to the WebSocket protocol.
-//
-// The responseHeader is included in the response to the client's upgrade
-// request. Use the responseHeader to specify cookies (Set-Cookie) and the
-// application negotiated subprotocol (Sec-WebSocket-Protocol).
-//
-// If the upgrade fails, then Upgrade replies to the client with an HTTP error
-// response.
-func (u *Upgrader) Upgrade(w http.ResponseWriter, r *http.Request, responseHeader http.Header) (*Conn, error) {
-	const badHandshake = "websocket: the client is not using the websocket protocol: "
-
-	if !tokenListContainsValue(r.Header, "Connection", "upgrade") {
-		return u.returnError(w, r, http.StatusBadRequest, badHandshake+"'upgrade' token not found in 'Connection' header")
-	}
-
-	if !tokenListContainsValue(r.Header, "Upgrade", "websocket") {
-		return u.returnError(w, r, http.StatusBadRequest, badHandshake+"'websocket' token not found in 'Upgrade' header")
-	}
-
-	if r.Method != "GET" {
-		return u.returnError(w, r, http.StatusMethodNotAllowed, badHandshake+"request method is not GET")
-	}
-
-	if !tokenListContainsValue(r.Header, "Sec-Websocket-Version", "13") {
-		return u.returnError(w, r, http.StatusBadRequest, "websocket: unsupported version: 13 not found in 'Sec-Websocket-Version' header")
-	}
-
-	if _, ok := responseHeader["Sec-Websocket-Extensions"]; ok {
-		return u.returnError(w, r, http.StatusInternalServerError, "websocket: application specific 'Sec-WebSocket-Extensions' headers are unsupported")
-	}
-
-	checkOrigin := u.CheckOrigin
-	if checkOrigin == nil {
-		checkOrigin = checkSameOrigin
-	}
-	if !checkOrigin(r) {
-		return u.returnError(w, r, http.StatusForbidden, "websocket: request origin not allowed by Upgrader.CheckOrigin")
-	}
-
-	challengeKey := r.Header.Get("Sec-Websocket-Key")
-	if challengeKey == "" {
-		return u.returnError(w, r, http.StatusBadRequest, "websocket: not a websocket handshake: 'Sec-WebSocket-Key' header is missing or blank")
-	}
-
-	subprotocol := u.selectSubprotocol(r, responseHeader)
-
-	// Negotiate PMCE
-	var compress bool
-	if u.EnableCompression {
-		for _, ext := range parseExtensions(r.Header) {
-			if ext[""] != "permessage-deflate" {
-				continue
-			}
-			compress = true
-			break
-		}
-	}
-
-	h, ok := w.(http.Hijacker)
-	if !ok {
-		return u.returnError(w, r, http.StatusInternalServerError, "websocket: response does not implement http.Hijacker")
-	}
-	var brw *bufio.ReadWriter
-	netConn, brw, err := h.Hijack()
-	if err != nil {
-		return u.returnError(w, r, http.StatusInternalServerError, err.Error())
-	}
-
-	if brw.Reader.Buffered() > 0 {
-		netConn.Close()
-		return nil, errors.New("websocket: client sent data before handshake is complete")
-	}
-
-	var br *bufio.Reader
-	if u.ReadBufferSize == 0 && bufioReaderSize(netConn, brw.Reader) > 256 {
-		// Reuse hijacked buffered reader as connection reader.
-		br = brw.Reader
-	}
-
-	buf := bufioWriterBuffer(netConn, brw.Writer)
-
-	var writeBuf []byte
-	if u.WriteBufferPool == nil && u.WriteBufferSize == 0 && len(buf) >= maxFrameHeaderSize+256 {
-		// Reuse hijacked write buffer as connection buffer.
-		writeBuf = buf
-	}
-
-	c := newConn(netConn, true, u.ReadBufferSize, u.WriteBufferSize, u.WriteBufferPool, br, writeBuf)
-	c.subprotocol = subprotocol
-
-	if compress {
-		c.newCompressionWriter = compressNoContextTakeover
-		c.newDecompressionReader = decompressNoContextTakeover
-	}
-
-	// Use larger of hijacked buffer and connection write buffer for header.
-	p := buf
-	if len(c.writeBuf) > len(p) {
-		p = c.writeBuf
-	}
-	p = p[:0]
-
-	p = append(p, "HTTP/1.1 101 Switching Protocols\r\nUpgrade: websocket\r\nConnection: Upgrade\r\nSec-WebSocket-Accept: "...)
-	p = append(p, computeAcceptKey(challengeKey)...)
-	p = append(p, "\r\n"...)
-	if c.subprotocol != "" {
-		p = append(p, "Sec-WebSocket-Protocol: "...)
-		p = append(p, c.subprotocol...)
-		p = append(p, "\r\n"...)
-	}
-	if compress {
-		p = append(p, "Sec-WebSocket-Extensions: permessage-deflate; server_no_context_takeover; client_no_context_takeover\r\n"...)
-	}
-	for k, vs := range responseHeader {
-		if k == "Sec-Websocket-Protocol" {
-			continue
-		}
-		for _, v := range vs {
-			p = append(p, k...)
-			p = append(p, ": "...)
-			for i := 0; i < len(v); i++ {
-				b := v[i]
-				if b <= 31 {
-					// prevent response splitting.
-					b = ' '
-				}
-				p = append(p, b)
-			}
-			p = append(p, "\r\n"...)
-		}
-	}
-	p = append(p, "\r\n"...)
-
-	// Clear deadlines set by HTTP server.
-	netConn.SetDeadline(time.Time{})
-
-	if u.HandshakeTimeout > 0 {
-		netConn.SetWriteDeadline(time.Now().Add(u.HandshakeTimeout))
-	}
-	if _, err = netConn.Write(p); err != nil {
-		netConn.Close()
-		return nil, err
-	}
-	if u.HandshakeTimeout > 0 {
-		netConn.SetWriteDeadline(time.Time{})
-	}
-
-	return c, nil
-}
-
-// Upgrade upgrades the HTTP server connection to the WebSocket protocol.
-//
-// Deprecated: Use websocket.Upgrader instead.
-//
-// Upgrade does not perform origin checking. The application is responsible for
-// checking the Origin header before calling Upgrade. An example implementation
-// of the same origin policy check is:
-//
-//	if req.Header.Get("Origin") != "http://"+req.Host {
-//		http.Error(w, "Origin not allowed", http.StatusForbidden)
-//		return
-//	}
-//
-// If the endpoint supports subprotocols, then the application is responsible
-// for negotiating the protocol used on the connection. Use the Subprotocols()
-// function to get the subprotocols requested by the client. Use the
-// Sec-Websocket-Protocol response header to specify the subprotocol selected
-// by the application.
-//
-// The responseHeader is included in the response to the client's upgrade
-// request. Use the responseHeader to specify cookies (Set-Cookie) and the
-// negotiated subprotocol (Sec-Websocket-Protocol).
-//
-// The connection buffers IO to the underlying network connection. The
-// readBufSize and writeBufSize parameters specify the size of the buffers to
-// use. Messages can be larger than the buffers.
-//
-// If the request is not a valid WebSocket handshake, then Upgrade returns an
-// error of type HandshakeError. Applications should handle this error by
-// replying to the client with an HTTP error response.
-func Upgrade(w http.ResponseWriter, r *http.Request, responseHeader http.Header, readBufSize, writeBufSize int) (*Conn, error) {
-	u := Upgrader{ReadBufferSize: readBufSize, WriteBufferSize: writeBufSize}
-	u.Error = func(w http.ResponseWriter, r *http.Request, status int, reason error) {
-		// don't return errors to maintain backwards compatibility
-	}
-	u.CheckOrigin = func(r *http.Request) bool {
-		// allow all connections by default
-		return true
-	}
-	return u.Upgrade(w, r, responseHeader)
-}
-
-// Subprotocols returns the subprotocols requested by the client in the
-// Sec-Websocket-Protocol header.
-func Subprotocols(r *http.Request) []string {
-	h := strings.TrimSpace(r.Header.Get("Sec-Websocket-Protocol"))
-	if h == "" {
-		return nil
-	}
-	protocols := strings.Split(h, ",")
-	for i := range protocols {
-		protocols[i] = strings.TrimSpace(protocols[i])
-	}
-	return protocols
-}
-
-// IsWebSocketUpgrade returns true if the client requested upgrade to the
-// WebSocket protocol.
-func IsWebSocketUpgrade(r *http.Request) bool {
-	return tokenListContainsValue(r.Header, "Connection", "upgrade") &&
-		tokenListContainsValue(r.Header, "Upgrade", "websocket")
-}
-
-// bufioReaderSize size returns the size of a bufio.Reader.
-func bufioReaderSize(originalReader io.Reader, br *bufio.Reader) int {
-	// This code assumes that peek on a reset reader returns
-	// bufio.Reader.buf[:0].
-	// TODO: Use bufio.Reader.Size() after Go 1.10
-	br.Reset(originalReader)
-	if p, err := br.Peek(0); err == nil {
-		return cap(p)
-	}
-	return 0
-}
-
-// writeHook is an io.Writer that records the last slice passed to it vio
-// io.Writer.Write.
-type writeHook struct {
-	p []byte
-}
-
-func (wh *writeHook) Write(p []byte) (int, error) {
-	wh.p = p
-	return len(p), nil
-}
-
-// bufioWriterBuffer grabs the buffer from a bufio.Writer.
-func bufioWriterBuffer(originalWriter io.Writer, bw *bufio.Writer) []byte {
-	// This code assumes that bufio.Writer.buf[:1] is passed to the
-	// bufio.Writer's underlying writer.
-	var wh writeHook
-	bw.Reset(&wh)
-	bw.WriteByte(0)
-	bw.Flush()
-
-	bw.Reset(originalWriter)
-
-	return wh.p[:cap(wh.p)]
-}

vendor/github.com/gorilla/websocket/trace.go

@@ -1,19 +0,0 @@
-// +build go1.8
-
-package websocket
-
-import (
-	"crypto/tls"
-	"net/http/httptrace"
-)
-
-func doHandshakeWithTrace(trace *httptrace.ClientTrace, tlsConn *tls.Conn, cfg *tls.Config) error {
-	if trace.TLSHandshakeStart != nil {
-		trace.TLSHandshakeStart()
-	}
-	err := doHandshake(tlsConn, cfg)
-	if trace.TLSHandshakeDone != nil {
-		trace.TLSHandshakeDone(tlsConn.ConnectionState(), err)
-	}
-	return err
-}

vendor/github.com/gorilla/websocket/trace_17.go

@@ -1,12 +0,0 @@
-// +build !go1.8
-
-package websocket
-
-import (
-	"crypto/tls"
-	"net/http/httptrace"
-)
-
-func doHandshakeWithTrace(trace *httptrace.ClientTrace, tlsConn *tls.Conn, cfg *tls.Config) error {
-	return doHandshake(tlsConn, cfg)
-}

vendor/github.com/gorilla/websocket/util.go

@@ -1,283 +0,0 @@
-// Copyright 2013 The Gorilla WebSocket Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package websocket
-
-import (
-	"crypto/rand"
-	"crypto/sha1"
-	"encoding/base64"
-	"io"
-	"net/http"
-	"strings"
-	"unicode/utf8"
-)
-
-var keyGUID = []byte("258EAFA5-E914-47DA-95CA-C5AB0DC85B11")
-
-func computeAcceptKey(challengeKey string) string {
-	h := sha1.New()
-	h.Write([]byte(challengeKey))
-	h.Write(keyGUID)
-	return base64.StdEncoding.EncodeToString(h.Sum(nil))
-}
-
-func generateChallengeKey() (string, error) {
-	p := make([]byte, 16)
-	if _, err := io.ReadFull(rand.Reader, p); err != nil {
-		return "", err
-	}
-	return base64.StdEncoding.EncodeToString(p), nil
-}
-
-// Token octets per RFC 2616.
-var isTokenOctet = [256]bool{
-	'!':  true,
-	'#':  true,
-	'$':  true,
-	'%':  true,
-	'&':  true,
-	'\'': true,
-	'*':  true,
-	'+':  true,
-	'-':  true,
-	'.':  true,
-	'0':  true,
-	'1':  true,
-	'2':  true,
-	'3':  true,
-	'4':  true,
-	'5':  true,
-	'6':  true,
-	'7':  true,
-	'8':  true,
-	'9':  true,
-	'A':  true,
-	'B':  true,
-	'C':  true,
-	'D':  true,
-	'E':  true,
-	'F':  true,
-	'G':  true,
-	'H':  true,
-	'I':  true,
-	'J':  true,
-	'K':  true,
-	'L':  true,
-	'M':  true,
-	'N':  true,
-	'O':  true,
-	'P':  true,
-	'Q':  true,
-	'R':  true,
-	'S':  true,
-	'T':  true,
-	'U':  true,
-	'W':  true,
-	'V':  true,
-	'X':  true,
-	'Y':  true,
-	'Z':  true,
-	'^':  true,
-	'_':  true,
-	'`':  true,
-	'a':  true,
-	'b':  true,
-	'c':  true,
-	'd':  true,
-	'e':  true,
-	'f':  true,
-	'g':  true,
-	'h':  true,
-	'i':  true,
-	'j':  true,
-	'k':  true,
-	'l':  true,
-	'm':  true,
-	'n':  true,
-	'o':  true,
-	'p':  true,
-	'q':  true,
-	'r':  true,
-	's':  true,
-	't':  true,
-	'u':  true,
-	'v':  true,
-	'w':  true,
-	'x':  true,
-	'y':  true,
-	'z':  true,
-	'|':  true,
-	'~':  true,
-}
-
-// skipSpace returns a slice of the string s with all leading RFC 2616 linear
-// whitespace removed.
-func skipSpace(s string) (rest string) {
-	i := 0
-	for ; i < len(s); i++ {
-		if b := s[i]; b != ' ' && b != '\t' {
-			break
-		}
-	}
-	return s[i:]
-}
-
-// nextToken returns the leading RFC 2616 token of s and the string following
-// the token.
-func nextToken(s string) (token, rest string) {
-	i := 0
-	for ; i < len(s); i++ {
-		if !isTokenOctet[s[i]] {
-			break
-		}
-	}
-	return s[:i], s[i:]
-}
-
-// nextTokenOrQuoted returns the leading token or quoted string per RFC 2616
-// and the string following the token or quoted string.
-func nextTokenOrQuoted(s string) (value string, rest string) {
-	if !strings.HasPrefix(s, "\"") {
-		return nextToken(s)
-	}
-	s = s[1:]
-	for i := 0; i < len(s); i++ {
-		switch s[i] {
-		case '"':
-			return s[:i], s[i+1:]
-		case '\\':
-			p := make([]byte, len(s)-1)
-			j := copy(p, s[:i])
-			escape := true
-			for i = i + 1; i < len(s); i++ {
-				b := s[i]
-				switch {
-				case escape:
-					escape = false
-					p[j] = b
-					j++
-				case b == '\\':
-					escape = true
-				case b == '"':
-					return string(p[:j]), s[i+1:]
-				default:
-					p[j] = b
-					j++
-				}
-			}
-			return "", ""
-		}
-	}
-	return "", ""
-}
-
-// equalASCIIFold returns true if s is equal to t with ASCII case folding as
-// defined in RFC 4790.
-func equalASCIIFold(s, t string) bool {
-	for s != "" && t != "" {
-		sr, size := utf8.DecodeRuneInString(s)
-		s = s[size:]
-		tr, size := utf8.DecodeRuneInString(t)
-		t = t[size:]
-		if sr == tr {
-			continue
-		}
-		if 'A' <= sr && sr <= 'Z' {
-			sr = sr + 'a' - 'A'
-		}
-		if 'A' <= tr && tr <= 'Z' {
-			tr = tr + 'a' - 'A'
-		}
-		if sr != tr {
-			return false
-		}
-	}
-	return s == t
-}
-
-// tokenListContainsValue returns true if the 1#token header with the given
-// name contains a token equal to value with ASCII case folding.
-func tokenListContainsValue(header http.Header, name string, value string) bool {
-headers:
-	for _, s := range header[name] {
-		for {
-			var t string
-			t, s = nextToken(skipSpace(s))
-			if t == "" {
-				continue headers
-			}
-			s = skipSpace(s)
-			if s != "" && s[0] != ',' {
-				continue headers
-			}
-			if equalASCIIFold(t, value) {
-				return true
-			}
-			if s == "" {
-				continue headers
-			}
-			s = s[1:]
-		}
-	}
-	return false
-}
-
-// parseExtensions parses WebSocket extensions from a header.
-func parseExtensions(header http.Header) []map[string]string {
-	// From RFC 6455:
-	//
-	//  Sec-WebSocket-Extensions = extension-list
-	//  extension-list = 1#extension
-	//  extension = extension-token *( ";" extension-param )
-	//  extension-token = registered-token
-	//  registered-token = token
-	//  extension-param = token [ "=" (token | quoted-string) ]
-	//     ;When using the quoted-string syntax variant, the value
-	//     ;after quoted-string unescaping MUST conform to the
-	//     ;'token' ABNF.
-
-	var result []map[string]string
-headers:
-	for _, s := range header["Sec-Websocket-Extensions"] {
-		for {
-			var t string
-			t, s = nextToken(skipSpace(s))
-			if t == "" {
-				continue headers
-			}
-			ext := map[string]string{"": t}
-			for {
-				s = skipSpace(s)
-				if !strings.HasPrefix(s, ";") {
-					break
-				}
-				var k string
-				k, s = nextToken(skipSpace(s[1:]))
-				if k == "" {
-					continue headers
-				}
-				s = skipSpace(s)
-				var v string
-				if strings.HasPrefix(s, "=") {
-					v, s = nextTokenOrQuoted(skipSpace(s[1:]))
-					s = skipSpace(s)
-				}
-				if s != "" && s[0] != ',' && s[0] != ';' {
-					continue headers
-				}
-				ext[k] = v
-			}
-			if s != "" && s[0] != ',' {
-				continue headers
-			}
-			result = append(result, ext)
-			if s == "" {
-				continue headers
-			}
-			s = s[1:]
-		}
-	}
-	return result
-}

vendor/github.com/gorilla/websocket/x_net_proxy.go

@@ -1,473 +0,0 @@
-// Code generated by golang.org/x/tools/cmd/bundle. DO NOT EDIT.
-//go:generate bundle -o x_net_proxy.go golang.org/x/net/proxy
-
-// Package proxy provides support for a variety of protocols to proxy network
-// data.
-//
-
-package websocket
-
-import (
-	"errors"
-	"io"
-	"net"
-	"net/url"
-	"os"
-	"strconv"
-	"strings"
-	"sync"
-)
-
-type proxy_direct struct{}
-
-// Direct is a direct proxy: one that makes network connections directly.
-var proxy_Direct = proxy_direct{}
-
-func (proxy_direct) Dial(network, addr string) (net.Conn, error) {
-	return net.Dial(network, addr)
-}
-
-// A PerHost directs connections to a default Dialer unless the host name
-// requested matches one of a number of exceptions.
-type proxy_PerHost struct {
-	def, bypass proxy_Dialer
-
-	bypassNetworks []*net.IPNet
-	bypassIPs      []net.IP
-	bypassZones    []string
-	bypassHosts    []string
-}
-
-// NewPerHost returns a PerHost Dialer that directs connections to either
-// defaultDialer or bypass, depending on whether the connection matches one of
-// the configured rules.
-func proxy_NewPerHost(defaultDialer, bypass proxy_Dialer) *proxy_PerHost {
-	return &proxy_PerHost{
-		def:    defaultDialer,
-		bypass: bypass,
-	}
-}
-
-// Dial connects to the address addr on the given network through either
-// defaultDialer or bypass.
-func (p *proxy_PerHost) Dial(network, addr string) (c net.Conn, err error) {
-	host, _, err := net.SplitHostPort(addr)
-	if err != nil {
-		return nil, err
-	}
-
-	return p.dialerForRequest(host).Dial(network, addr)
-}
-
-func (p *proxy_PerHost) dialerForRequest(host string) proxy_Dialer {
-	if ip := net.ParseIP(host); ip != nil {
-		for _, net := range p.bypassNetworks {
-			if net.Contains(ip) {
-				return p.bypass
-			}
-		}
-		for _, bypassIP := range p.bypassIPs {
-			if bypassIP.Equal(ip) {
-				return p.bypass
-			}
-		}
-		return p.def
-	}
-
-	for _, zone := range p.bypassZones {
-		if strings.HasSuffix(host, zone) {
-			return p.bypass
-		}
-		if host == zone[1:] {
-			// For a zone ".example.com", we match "example.com"
-			// too.
-			return p.bypass
-		}
-	}
-	for _, bypassHost := range p.bypassHosts {
-		if bypassHost == host {
-			return p.bypass
-		}
-	}
-	return p.def
-}
-
-// AddFromString parses a string that contains comma-separated values
-// specifying hosts that should use the bypass proxy. Each value is either an
-// IP address, a CIDR range, a zone (*.example.com) or a host name
-// (localhost). A best effort is made to parse the string and errors are
-// ignored.
-func (p *proxy_PerHost) AddFromString(s string) {
-	hosts := strings.Split(s, ",")
-	for _, host := range hosts {
-		host = strings.TrimSpace(host)
-		if len(host) == 0 {
-			continue
-		}
-		if strings.Contains(host, "/") {
-			// We assume that it's a CIDR address like 127.0.0.0/8
-			if _, net, err := net.ParseCIDR(host); err == nil {
-				p.AddNetwork(net)
-			}
-			continue
-		}
-		if ip := net.ParseIP(host); ip != nil {
-			p.AddIP(ip)
-			continue
-		}
-		if strings.HasPrefix(host, "*.") {
-			p.AddZone(host[1:])
-			continue
-		}
-		p.AddHost(host)
-	}
-}
-
-// AddIP specifies an IP address that will use the bypass proxy. Note that
-// this will only take effect if a literal IP address is dialed. A connection
-// to a named host will never match an IP.
-func (p *proxy_PerHost) AddIP(ip net.IP) {
-	p.bypassIPs = append(p.bypassIPs, ip)
-}
-
-// AddNetwork specifies an IP range that will use the bypass proxy. Note that
-// this will only take effect if a literal IP address is dialed. A connection
-// to a named host will never match.
-func (p *proxy_PerHost) AddNetwork(net *net.IPNet) {
-	p.bypassNetworks = append(p.bypassNetworks, net)
-}
-
-// AddZone specifies a DNS suffix that will use the bypass proxy. A zone of
-// "example.com" matches "example.com" and all of its subdomains.
-func (p *proxy_PerHost) AddZone(zone string) {
-	if strings.HasSuffix(zone, ".") {
-		zone = zone[:len(zone)-1]
-	}
-	if !strings.HasPrefix(zone, ".") {
-		zone = "." + zone
-	}
-	p.bypassZones = append(p.bypassZones, zone)
-}
-
-// AddHost specifies a host name that will use the bypass proxy.
-func (p *proxy_PerHost) AddHost(host string) {
-	if strings.HasSuffix(host, ".") {
-		host = host[:len(host)-1]
-	}
-	p.bypassHosts = append(p.bypassHosts, host)
-}
-
-// A Dialer is a means to establish a connection.
-type proxy_Dialer interface {
-	// Dial connects to the given address via the proxy.
-	Dial(network, addr string) (c net.Conn, err error)
-}
-
-// Auth contains authentication parameters that specific Dialers may require.
-type proxy_Auth struct {
-	User, Password string
-}
-
-// FromEnvironment returns the dialer specified by the proxy related variables in
-// the environment.
-func proxy_FromEnvironment() proxy_Dialer {
-	allProxy := proxy_allProxyEnv.Get()
-	if len(allProxy) == 0 {
-		return proxy_Direct
-	}
-
-	proxyURL, err := url.Parse(allProxy)
-	if err != nil {
-		return proxy_Direct
-	}
-	proxy, err := proxy_FromURL(proxyURL, proxy_Direct)
-	if err != nil {
-		return proxy_Direct
-	}
-
-	noProxy := proxy_noProxyEnv.Get()
-	if len(noProxy) == 0 {
-		return proxy
-	}
-
-	perHost := proxy_NewPerHost(proxy, proxy_Direct)
-	perHost.AddFromString(noProxy)
-	return perHost
-}
-
-// proxySchemes is a map from URL schemes to a function that creates a Dialer
-// from a URL with such a scheme.
-var proxy_proxySchemes map[string]func(*url.URL, proxy_Dialer) (proxy_Dialer, error)
-
-// RegisterDialerType takes a URL scheme and a function to generate Dialers from
-// a URL with that scheme and a forwarding Dialer. Registered schemes are used
-// by FromURL.
-func proxy_RegisterDialerType(scheme string, f func(*url.URL, proxy_Dialer) (proxy_Dialer, error)) {
-	if proxy_proxySchemes == nil {
-		proxy_proxySchemes = make(map[string]func(*url.URL, proxy_Dialer) (proxy_Dialer, error))
-	}
-	proxy_proxySchemes[scheme] = f
-}
-
-// FromURL returns a Dialer given a URL specification and an underlying
-// Dialer for it to make network requests.
-func proxy_FromURL(u *url.URL, forward proxy_Dialer) (proxy_Dialer, error) {
-	var auth *proxy_Auth
-	if u.User != nil {
-		auth = new(proxy_Auth)
-		auth.User = u.User.Username()
-		if p, ok := u.User.Password(); ok {
-			auth.Password = p
-		}
-	}
-
-	switch u.Scheme {
-	case "socks5":
-		return proxy_SOCKS5("tcp", u.Host, auth, forward)
-	}
-
-	// If the scheme doesn't match any of the built-in schemes, see if it
-	// was registered by another package.
-	if proxy_proxySchemes != nil {
-		if f, ok := proxy_proxySchemes[u.Scheme]; ok {
-			return f(u, forward)
-		}
-	}
-
-	return nil, errors.New("proxy: unknown scheme: " + u.Scheme)
-}
-
-var (
-	proxy_allProxyEnv = &proxy_envOnce{
-		names: []string{"ALL_PROXY", "all_proxy"},
-	}
-	proxy_noProxyEnv = &proxy_envOnce{
-		names: []string{"NO_PROXY", "no_proxy"},
-	}
-)
-
-// envOnce looks up an environment variable (optionally by multiple
-// names) once. It mitigates expensive lookups on some platforms
-// (e.g. Windows).
-// (Borrowed from net/http/transport.go)
-type proxy_envOnce struct {
-	names []string
-	once  sync.Once
-	val   string
-}
-
-func (e *proxy_envOnce) Get() string {
-	e.once.Do(e.init)
-	return e.val
-}
-
-func (e *proxy_envOnce) init() {
-	for _, n := range e.names {
-		e.val = os.Getenv(n)
-		if e.val != "" {
-			return
-		}
-	}
-}
-
-// SOCKS5 returns a Dialer that makes SOCKSv5 connections to the given address
-// with an optional username and password. See RFC 1928 and RFC 1929.
-func proxy_SOCKS5(network, addr string, auth *proxy_Auth, forward proxy_Dialer) (proxy_Dialer, error) {
-	s := &proxy_socks5{
-		network: network,
-		addr:    addr,
-		forward: forward,
-	}
-	if auth != nil {
-		s.user = auth.User
-		s.password = auth.Password
-	}
-
-	return s, nil
-}
-
-type proxy_socks5 struct {
-	user, password string
-	network, addr  string
-	forward        proxy_Dialer
-}
-
-const proxy_socks5Version = 5
-
-const (
-	proxy_socks5AuthNone     = 0
-	proxy_socks5AuthPassword = 2
-)
-
-const proxy_socks5Connect = 1
-
-const (
-	proxy_socks5IP4    = 1
-	proxy_socks5Domain = 3
-	proxy_socks5IP6    = 4
-)
-
-var proxy_socks5Errors = []string{
-	"",
-	"general failure",
-	"connection forbidden",
-	"network unreachable",
-	"host unreachable",
-	"connection refused",
-	"TTL expired",
-	"command not supported",
-	"address type not supported",
-}
-
-// Dial connects to the address addr on the given network via the SOCKS5 proxy.
-func (s *proxy_socks5) Dial(network, addr string) (net.Conn, error) {
-	switch network {
-	case "tcp", "tcp6", "tcp4":
-	default:
-		return nil, errors.New("proxy: no support for SOCKS5 proxy connections of type " + network)
-	}
-
-	conn, err := s.forward.Dial(s.network, s.addr)
-	if err != nil {
-		return nil, err
-	}
-	if err := s.connect(conn, addr); err != nil {
-		conn.Close()
-		return nil, err
-	}
-	return conn, nil
-}
-
-// connect takes an existing connection to a socks5 proxy server,
-// and commands the server to extend that connection to target,
-// which must be a canonical address with a host and port.
-func (s *proxy_socks5) connect(conn net.Conn, target string) error {
-	host, portStr, err := net.SplitHostPort(target)
-	if err != nil {
-		return err
-	}
-
-	port, err := strconv.Atoi(portStr)
-	if err != nil {
-		return errors.New("proxy: failed to parse port number: " + portStr)
-	}
-	if port < 1 || port > 0xffff {
-		return errors.New("proxy: port number out of range: " + portStr)
-	}
-
-	// the size here is just an estimate
-	buf := make([]byte, 0, 6+len(host))
-
-	buf = append(buf, proxy_socks5Version)
-	if len(s.user) > 0 && len(s.user) < 256 && len(s.password) < 256 {
-		buf = append(buf, 2 /* num auth methods */, proxy_socks5AuthNone, proxy_socks5AuthPassword)
-	} else {
-		buf = append(buf, 1 /* num auth methods */, proxy_socks5AuthNone)
-	}
-
-	if _, err := conn.Write(buf); err != nil {
-		return errors.New("proxy: failed to write greeting to SOCKS5 proxy at " + s.addr + ": " + err.Error())
-	}
-
-	if _, err := io.ReadFull(conn, buf[:2]); err != nil {
-		return errors.New("proxy: failed to read greeting from SOCKS5 proxy at " + s.addr + ": " + err.Error())
-	}
-	if buf[0] != 5 {
-		return errors.New("proxy: SOCKS5 proxy at " + s.addr + " has unexpected version " + strconv.Itoa(int(buf[0])))
-	}
-	if buf[1] == 0xff {
-		return errors.New("proxy: SOCKS5 proxy at " + s.addr + " requires authentication")
-	}
-
-	// See RFC 1929
-	if buf[1] == proxy_socks5AuthPassword {
-		buf = buf[:0]
-		buf = append(buf, 1 /* password protocol version */)
-		buf = append(buf, uint8(len(s.user)))
-		buf = append(buf, s.user...)
-		buf = append(buf, uint8(len(s.password)))
-		buf = append(buf, s.password...)
-
-		if _, err := conn.Write(buf); err != nil {
-			return errors.New("proxy: failed to write authentication request to SOCKS5 proxy at " + s.addr + ": " + err.Error())
-		}
-
-		if _, err := io.ReadFull(conn, buf[:2]); err != nil {
-			return errors.New("proxy: failed to read authentication reply from SOCKS5 proxy at " + s.addr + ": " + err.Error())
-		}
-
-		if buf[1] != 0 {
-			return errors.New("proxy: SOCKS5 proxy at " + s.addr + " rejected username/password")
-		}
-	}
-
-	buf = buf[:0]
-	buf = append(buf, proxy_socks5Version, proxy_socks5Connect, 0 /* reserved */)
-
-	if ip := net.ParseIP(host); ip != nil {
-		if ip4 := ip.To4(); ip4 != nil {
-			buf = append(buf, proxy_socks5IP4)
-			ip = ip4
-		} else {
-			buf = append(buf, proxy_socks5IP6)
-		}
-		buf = append(buf, ip...)
-	} else {
-		if len(host) > 255 {
-			return errors.New("proxy: destination host name too long: " + host)
-		}
-		buf = append(buf, proxy_socks5Domain)
-		buf = append(buf, byte(len(host)))
-		buf = append(buf, host...)
-	}
-	buf = append(buf, byte(port>>8), byte(port))
-
-	if _, err := conn.Write(buf); err != nil {
-		return errors.New("proxy: failed to write connect request to SOCKS5 proxy at " + s.addr + ": " + err.Error())
-	}
-
-	if _, err := io.ReadFull(conn, buf[:4]); err != nil {
-		return errors.New("proxy: failed to read connect reply from SOCKS5 proxy at " + s.addr + ": " + err.Error())
-	}
-
-	failure := "unknown error"
-	if int(buf[1]) < len(proxy_socks5Errors) {
-		failure = proxy_socks5Errors[buf[1]]
-	}
-
-	if len(failure) > 0 {
-		return errors.New("proxy: SOCKS5 proxy at " + s.addr + " failed to connect: " + failure)
-	}
-
-	bytesToDiscard := 0
-	switch buf[3] {
-	case proxy_socks5IP4:
-		bytesToDiscard = net.IPv4len
-	case proxy_socks5IP6:
-		bytesToDiscard = net.IPv6len
-	case proxy_socks5Domain:
-		_, err := io.ReadFull(conn, buf[:1])
-		if err != nil {
-			return errors.New("proxy: failed to read domain length from SOCKS5 proxy at " + s.addr + ": " + err.Error())
-		}
-		bytesToDiscard = int(buf[0])
-	default:
-		return errors.New("proxy: got unknown address type " + strconv.Itoa(int(buf[3])) + " from SOCKS5 proxy at " + s.addr)
-	}
-
-	if cap(buf) < bytesToDiscard {
-		buf = make([]byte, bytesToDiscard)
-	} else {
-		buf = buf[:bytesToDiscard]
-	}
-	if _, err := io.ReadFull(conn, buf); err != nil {
-		return errors.New("proxy: failed to read address from SOCKS5 proxy at " + s.addr + ": " + err.Error())
-	}
-
-	// Also need to discard the port number
-	if _, err := io.ReadFull(conn, buf[:2]); err != nil {
-		return errors.New("proxy: failed to read port from SOCKS5 proxy at " + s.addr + ": " + err.Error())
-	}
-
-	return nil
-}

vendor/github.com/hashicorp/errwrap/LICENSE

@@ -1,354 +0,0 @@
-Mozilla Public License, version 2.0
-
-1. Definitions
-
-1.1. “Contributor”
-
-     means each individual or legal entity that creates, contributes to the
-     creation of, or owns Covered Software.
-
-1.2. “Contributor Version”
-
-     means the combination of the Contributions of others (if any) used by a
-     Contributor and that particular Contributor’s Contribution.
-
-1.3. “Contribution”
-
-     means Covered Software of a particular Contributor.
-
-1.4. “Covered Software”
-
-     means Source Code Form to which the initial Contributor has attached the
-     notice in Exhibit A, the Executable Form of such Source Code Form, and
-     Modifications of such Source Code Form, in each case including portions
-     thereof.
-
-1.5. “Incompatible With Secondary Licenses”
-     means
-
-     a. that the initial Contributor has attached the notice described in
-        Exhibit B to the Covered Software; or
-
-     b. that the Covered Software was made available under the terms of version
-        1.1 or earlier of the License, but not also under the terms of a
-        Secondary License.
-
-1.6. “Executable Form”
-
-     means any form of the work other than Source Code Form.
-
-1.7. “Larger Work”
-
-     means a work that combines Covered Software with other material, in a separate
-     file or files, that is not Covered Software.
-
-1.8. “License”
-
-     means this document.
-
-1.9. “Licensable”
-
-     means having the right to grant, to the maximum extent possible, whether at the
-     time of the initial grant or subsequently, any and all of the rights conveyed by
-     this License.
-
-1.10. “Modifications”
-
-     means any of the following:
-
-     a. any file in Source Code Form that results from an addition to, deletion
-        from, or modification of the contents of Covered Software; or
-
-     b. any new file in Source Code Form that contains any Covered Software.
-
-1.11. “Patent Claims” of a Contributor
-
-      means any patent claim(s), including without limitation, method, process,
-      and apparatus claims, in any patent Licensable by such Contributor that
-      would be infringed, but for the grant of the License, by the making,
-      using, selling, offering for sale, having made, import, or transfer of
-      either its Contributions or its Contributor Version.
-
-1.12. “Secondary License”
-
-      means either the GNU General Public License, Version 2.0, the GNU Lesser
-      General Public License, Version 2.1, the GNU Affero General Public
-      License, Version 3.0, or any later versions of those licenses.
-
-1.13. “Source Code Form”
-
-      means the form of the work preferred for making modifications.
-
-1.14. “You” (or “Your”)
-
-      means an individual or a legal entity exercising rights under this
-      License. For legal entities, “You” includes any entity that controls, is
-      controlled by, or is under common control with You. For purposes of this
-      definition, “control” means (a) the power, direct or indirect, to cause
-      the direction or management of such entity, whether by contract or
-      otherwise, or (b) ownership of more than fifty percent (50%) of the
-      outstanding shares or beneficial ownership of such entity.
-
-
-2. License Grants and Conditions
-
-2.1. Grants
-
-     Each Contributor hereby grants You a world-wide, royalty-free,
-     non-exclusive license:
-
-     a. under intellectual property rights (other than patent or trademark)
-        Licensable by such Contributor to use, reproduce, make available,
-        modify, display, perform, distribute, and otherwise exploit its
-        Contributions, either on an unmodified basis, with Modifications, or as
-        part of a Larger Work; and
-
-     b. under Patent Claims of such Contributor to make, use, sell, offer for
-        sale, have made, import, and otherwise transfer either its Contributions
-        or its Contributor Version.
-
-2.2. Effective Date
-
-     The licenses granted in Section 2.1 with respect to any Contribution become
-     effective for each Contribution on the date the Contributor first distributes
-     such Contribution.
-
-2.3. Limitations on Grant Scope
-
-     The licenses granted in this Section 2 are the only rights granted under this
-     License. No additional rights or licenses will be implied from the distribution
-     or licensing of Covered Software under this License. Notwithstanding Section
-     2.1(b) above, no patent license is granted by a Contributor:
-
-     a. for any code that a Contributor has removed from Covered Software; or
-
-     b. for infringements caused by: (i) Your and any other third party’s
-        modifications of Covered Software, or (ii) the combination of its
-        Contributions with other software (except as part of its Contributor
-        Version); or
-
-     c. under Patent Claims infringed by Covered Software in the absence of its
-        Contributions.
-
-     This License does not grant any rights in the trademarks, service marks, or
-     logos of any Contributor (except as may be necessary to comply with the
-     notice requirements in Section 3.4).
-
-2.4. Subsequent Licenses
-
-     No Contributor makes additional grants as a result of Your choice to
-     distribute the Covered Software under a subsequent version of this License
-     (see Section 10.2) or under the terms of a Secondary License (if permitted
-     under the terms of Section 3.3).
-
-2.5. Representation
-
-     Each Contributor represents that the Contributor believes its Contributions
-     are its original creation(s) or it has sufficient rights to grant the
-     rights to its Contributions conveyed by this License.
-
-2.6. Fair Use
-
-     This License is not intended to limit any rights You have under applicable
-     copyright doctrines of fair use, fair dealing, or other equivalents.
-
-2.7. Conditions
-
-     Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
-     Section 2.1.
-
-
-3. Responsibilities
-
-3.1. Distribution of Source Form
-
-     All distribution of Covered Software in Source Code Form, including any
-     Modifications that You create or to which You contribute, must be under the
-     terms of this License. You must inform recipients that the Source Code Form
-     of the Covered Software is governed by the terms of this License, and how
-     they can obtain a copy of this License. You may not attempt to alter or
-     restrict the recipients’ rights in the Source Code Form.
-
-3.2. Distribution of Executable Form
-
-     If You distribute Covered Software in Executable Form then:
-
-     a. such Covered Software must also be made available in Source Code Form,
-        as described in Section 3.1, and You must inform recipients of the
-        Executable Form how they can obtain a copy of such Source Code Form by
-        reasonable means in a timely manner, at a charge no more than the cost
-        of distribution to the recipient; and
-
-     b. You may distribute such Executable Form under the terms of this License,
-        or sublicense it under different terms, provided that the license for
-        the Executable Form does not attempt to limit or alter the recipients’
-        rights in the Source Code Form under this License.
-
-3.3. Distribution of a Larger Work
-
-     You may create and distribute a Larger Work under terms of Your choice,
-     provided that You also comply with the requirements of this License for the
-     Covered Software. If the Larger Work is a combination of Covered Software
-     with a work governed by one or more Secondary Licenses, and the Covered
-     Software is not Incompatible With Secondary Licenses, this License permits
-     You to additionally distribute such Covered Software under the terms of
-     such Secondary License(s), so that the recipient of the Larger Work may, at
-     their option, further distribute the Covered Software under the terms of
-     either this License or such Secondary License(s).
-
-3.4. Notices
-
-     You may not remove or alter the substance of any license notices (including
-     copyright notices, patent notices, disclaimers of warranty, or limitations
-     of liability) contained within the Source Code Form of the Covered
-     Software, except that You may alter any license notices to the extent
-     required to remedy known factual inaccuracies.
-
-3.5. Application of Additional Terms
-
-     You may choose to offer, and to charge a fee for, warranty, support,
-     indemnity or liability obligations to one or more recipients of Covered
-     Software. However, You may do so only on Your own behalf, and not on behalf
-     of any Contributor. You must make it absolutely clear that any such
-     warranty, support, indemnity, or liability obligation is offered by You
-     alone, and You hereby agree to indemnify every Contributor for any
-     liability incurred by such Contributor as a result of warranty, support,
-     indemnity or liability terms You offer. You may include additional
-     disclaimers of warranty and limitations of liability specific to any
-     jurisdiction.
-
-4. Inability to Comply Due to Statute or Regulation
-
-   If it is impossible for You to comply with any of the terms of this License
-   with respect to some or all of the Covered Software due to statute, judicial
-   order, or regulation then You must: (a) comply with the terms of this License
-   to the maximum extent possible; and (b) describe the limitations and the code
-   they affect. Such description must be placed in a text file included with all
-   distributions of the Covered Software under this License. Except to the
-   extent prohibited by statute or regulation, such description must be
-   sufficiently detailed for a recipient of ordinary skill to be able to
-   understand it.
-
-5. Termination
-
-5.1. The rights granted under this License will terminate automatically if You
-     fail to comply with any of its terms. However, if You become compliant,
-     then the rights granted under this License from a particular Contributor
-     are reinstated (a) provisionally, unless and until such Contributor
-     explicitly and finally terminates Your grants, and (b) on an ongoing basis,
-     if such Contributor fails to notify You of the non-compliance by some
-     reasonable means prior to 60 days after You have come back into compliance.
-     Moreover, Your grants from a particular Contributor are reinstated on an
-     ongoing basis if such Contributor notifies You of the non-compliance by
-     some reasonable means, this is the first time You have received notice of
-     non-compliance with this License from such Contributor, and You become
-     compliant prior to 30 days after Your receipt of the notice.
-
-5.2. If You initiate litigation against any entity by asserting a patent
-     infringement claim (excluding declaratory judgment actions, counter-claims,
-     and cross-claims) alleging that a Contributor Version directly or
-     indirectly infringes any patent, then the rights granted to You by any and
-     all Contributors for the Covered Software under Section 2.1 of this License
-     shall terminate.
-
-5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
-     license agreements (excluding distributors and resellers) which have been
-     validly granted by You or Your distributors under this License prior to
-     termination shall survive termination.
-
-6. Disclaimer of Warranty
-
-   Covered Software is provided under this License on an “as is” basis, without
-   warranty of any kind, either expressed, implied, or statutory, including,
-   without limitation, warranties that the Covered Software is free of defects,
-   merchantable, fit for a particular purpose or non-infringing. The entire
-   risk as to the quality and performance of the Covered Software is with You.
-   Should any Covered Software prove defective in any respect, You (not any
-   Contributor) assume the cost of any necessary servicing, repair, or
-   correction. This disclaimer of warranty constitutes an essential part of this
-   License. No use of  any Covered Software is authorized under this License
-   except under this disclaimer.
-
-7. Limitation of Liability
-
-   Under no circumstances and under no legal theory, whether tort (including
-   negligence), contract, or otherwise, shall any Contributor, or anyone who
-   distributes Covered Software as permitted above, be liable to You for any
-   direct, indirect, special, incidental, or consequential damages of any
-   character including, without limitation, damages for lost profits, loss of
-   goodwill, work stoppage, computer failure or malfunction, or any and all
-   other commercial damages or losses, even if such party shall have been
-   informed of the possibility of such damages. This limitation of liability
-   shall not apply to liability for death or personal injury resulting from such
-   party’s negligence to the extent applicable law prohibits such limitation.
-   Some jurisdictions do not allow the exclusion or limitation of incidental or
-   consequential damages, so this exclusion and limitation may not apply to You.
-
-8. Litigation
-
-   Any litigation relating to this License may be brought only in the courts of
-   a jurisdiction where the defendant maintains its principal place of business
-   and such litigation shall be governed by laws of that jurisdiction, without
-   reference to its conflict-of-law provisions. Nothing in this Section shall
-   prevent a party’s ability to bring cross-claims or counter-claims.
-
-9. Miscellaneous
-
-   This License represents the complete agreement concerning the subject matter
-   hereof. If any provision of this License is held to be unenforceable, such
-   provision shall be reformed only to the extent necessary to make it
-   enforceable. Any law or regulation which provides that the language of a
-   contract shall be construed against the drafter shall not be used to construe
-   this License against a Contributor.
-
-
-10. Versions of the License
-
-10.1. New Versions
-
-      Mozilla Foundation is the license steward. Except as provided in Section
-      10.3, no one other than the license steward has the right to modify or
-      publish new versions of this License. Each version will be given a
-      distinguishing version number.
-
-10.2. Effect of New Versions
-
-      You may distribute the Covered Software under the terms of the version of
-      the License under which You originally received the Covered Software, or
-      under the terms of any subsequent version published by the license
-      steward.
-
-10.3. Modified Versions
-
-      If you create software not governed by this License, and you want to
-      create a new license for such software, you may create and use a modified
-      version of this License if you rename the license and remove any
-      references to the name of the license steward (except to note that such
-      modified license differs from this License).
-
-10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses
-      If You choose to distribute Source Code Form that is Incompatible With
-      Secondary Licenses under the terms of this version of the License, the
-      notice described in Exhibit B of this License must be attached.
-
-Exhibit A - Source Code Form License Notice
-
-      This Source Code Form is subject to the
-      terms of the Mozilla Public License, v.
-      2.0. If a copy of the MPL was not
-      distributed with this file, You can
-      obtain one at
-      http://mozilla.org/MPL/2.0/.
-
-If it is not possible or desirable to put the notice in a particular file, then
-You may include the notice in a location (such as a LICENSE file in a relevant
-directory) where a recipient would be likely to look for such a notice.
-
-You may add additional accurate notices of copyright ownership.
-
-Exhibit B - “Incompatible With Secondary Licenses” Notice
-
-      This Source Code Form is “Incompatible
-      With Secondary Licenses”, as defined by
-      the Mozilla Public License, v. 2.0.
-

vendor/github.com/hashicorp/errwrap/README.md

@@ -1,89 +0,0 @@
-# errwrap
-
-`errwrap` is a package for Go that formalizes the pattern of wrapping errors
-and checking if an error contains another error.
-
-There is a common pattern in Go of taking a returned `error` value and
-then wrapping it (such as with `fmt.Errorf`) before returning it. The problem
-with this pattern is that you completely lose the original `error` structure.
-
-Arguably the _correct_ approach is that you should make a custom structure
-implementing the `error` interface, and have the original error as a field
-on that structure, such [as this example](http://golang.org/pkg/os/#PathError).
-This is a good approach, but you have to know the entire chain of possible
-rewrapping that happens, when you might just care about one.
-
-`errwrap` formalizes this pattern (it doesn't matter what approach you use
-above) by giving a single interface for wrapping errors, checking if a specific
-error is wrapped, and extracting that error.
-
-## Installation and Docs
-
-Install using `go get github.com/hashicorp/errwrap`.
-
-Full documentation is available at
-http://godoc.org/github.com/hashicorp/errwrap
-
-## Usage
-
-#### Basic Usage
-
-Below is a very basic example of its usage:
-
-```go
-// A function that always returns an error, but wraps it, like a real
-// function might.
-func tryOpen() error {
-	_, err := os.Open("/i/dont/exist")
-	if err != nil {
-		return errwrap.Wrapf("Doesn't exist: {{err}}", err)
-	}
-
-	return nil
-}
-
-func main() {
-	err := tryOpen()
-
-	// We can use the Contains helpers to check if an error contains
-	// another error. It is safe to do this with a nil error, or with
-	// an error that doesn't even use the errwrap package.
-	if errwrap.Contains(err, "does not exist") {
-		// Do something
-	}
-	if errwrap.ContainsType(err, new(os.PathError)) {
-		// Do something
-	}
-
-	// Or we can use the associated `Get` functions to just extract
-	// a specific error. This would return nil if that specific error doesn't
-	// exist.
-	perr := errwrap.GetType(err, new(os.PathError))
-}
-```
-
-#### Custom Types
-
-If you're already making custom types that properly wrap errors, then
-you can get all the functionality of `errwraps.Contains` and such by
-implementing the `Wrapper` interface with just one function. Example:
-
-```go
-type AppError {
-  Code ErrorCode
-  Err  error
-}
-
-func (e *AppError) WrappedErrors() []error {
-  return []error{e.Err}
-}
-```
-
-Now this works:
-
-```go
-err := &AppError{Err: fmt.Errorf("an error")}
-if errwrap.ContainsType(err, fmt.Errorf("")) {
-	// This will work!
-}
-```

vendor/github.com/hashicorp/errwrap/errwrap.go

@@ -1,169 +0,0 @@
-// Package errwrap implements methods to formalize error wrapping in Go.
-//
-// All of the top-level functions that take an `error` are built to be able
-// to take any error, not just wrapped errors. This allows you to use errwrap
-// without having to type-check and type-cast everywhere.
-package errwrap
-
-import (
-	"errors"
-	"reflect"
-	"strings"
-)
-
-// WalkFunc is the callback called for Walk.
-type WalkFunc func(error)
-
-// Wrapper is an interface that can be implemented by custom types to
-// have all the Contains, Get, etc. functions in errwrap work.
-//
-// When Walk reaches a Wrapper, it will call the callback for every
-// wrapped error in addition to the wrapper itself. Since all the top-level
-// functions in errwrap use Walk, this means that all those functions work
-// with your custom type.
-type Wrapper interface {
-	WrappedErrors() []error
-}
-
-// Wrap defines that outer wraps inner, returning an error type that
-// can be cleanly used with the other methods in this package, such as
-// Contains, GetAll, etc.
-//
-// This function won't modify the error message at all (the outer message
-// will be used).
-func Wrap(outer, inner error) error {
-	return &wrappedError{
-		Outer: outer,
-		Inner: inner,
-	}
-}
-
-// Wrapf wraps an error with a formatting message. This is similar to using
-// `fmt.Errorf` to wrap an error. If you're using `fmt.Errorf` to wrap
-// errors, you should replace it with this.
-//
-// format is the format of the error message. The string '{{err}}' will
-// be replaced with the original error message.
-func Wrapf(format string, err error) error {
-	outerMsg := "<nil>"
-	if err != nil {
-		outerMsg = err.Error()
-	}
-
-	outer := errors.New(strings.Replace(
-		format, "{{err}}", outerMsg, -1))
-
-	return Wrap(outer, err)
-}
-
-// Contains checks if the given error contains an error with the
-// message msg. If err is not a wrapped error, this will always return
-// false unless the error itself happens to match this msg.
-func Contains(err error, msg string) bool {
-	return len(GetAll(err, msg)) > 0
-}
-
-// ContainsType checks if the given error contains an error with
-// the same concrete type as v. If err is not a wrapped error, this will
-// check the err itself.
-func ContainsType(err error, v interface{}) bool {
-	return len(GetAllType(err, v)) > 0
-}
-
-// Get is the same as GetAll but returns the deepest matching error.
-func Get(err error, msg string) error {
-	es := GetAll(err, msg)
-	if len(es) > 0 {
-		return es[len(es)-1]
-	}
-
-	return nil
-}
-
-// GetType is the same as GetAllType but returns the deepest matching error.
-func GetType(err error, v interface{}) error {
-	es := GetAllType(err, v)
-	if len(es) > 0 {
-		return es[len(es)-1]
-	}
-
-	return nil
-}
-
-// GetAll gets all the errors that might be wrapped in err with the
-// given message. The order of the errors is such that the outermost
-// matching error (the most recent wrap) is index zero, and so on.
-func GetAll(err error, msg string) []error {
-	var result []error
-
-	Walk(err, func(err error) {
-		if err.Error() == msg {
-			result = append(result, err)
-		}
-	})
-
-	return result
-}
-
-// GetAllType gets all the errors that are the same type as v.
-//
-// The order of the return value is the same as described in GetAll.
-func GetAllType(err error, v interface{}) []error {
-	var result []error
-
-	var search string
-	if v != nil {
-		search = reflect.TypeOf(v).String()
-	}
-	Walk(err, func(err error) {
-		var needle string
-		if err != nil {
-			needle = reflect.TypeOf(err).String()
-		}
-
-		if needle == search {
-			result = append(result, err)
-		}
-	})
-
-	return result
-}
-
-// Walk walks all the wrapped errors in err and calls the callback. If
-// err isn't a wrapped error, this will be called once for err. If err
-// is a wrapped error, the callback will be called for both the wrapper
-// that implements error as well as the wrapped error itself.
-func Walk(err error, cb WalkFunc) {
-	if err == nil {
-		return
-	}
-
-	switch e := err.(type) {
-	case *wrappedError:
-		cb(e.Outer)
-		Walk(e.Inner, cb)
-	case Wrapper:
-		cb(err)
-
-		for _, err := range e.WrappedErrors() {
-			Walk(err, cb)
-		}
-	default:
-		cb(err)
-	}
-}
-
-// wrappedError is an implementation of error that has both the
-// outer and inner errors.
-type wrappedError struct {
-	Outer error
-	Inner error
-}
-
-func (w *wrappedError) Error() string {
-	return w.Outer.Error()
-}
-
-func (w *wrappedError) WrappedErrors() []error {
-	return []error{w.Outer, w.Inner}
-}

vendor/github.com/hashicorp/errwrap/go.mod

@@ -1 +0,0 @@
-module github.com/hashicorp/errwrap

vendor/github.com/hashicorp/go-multierror/.travis.yml

@@ -1,12 +0,0 @@
-sudo: false
-
-language: go
-
-go:
-  - 1.x
-
-branches:
-  only:
-    - master
-
-script: make test testrace

vendor/github.com/hashicorp/go-multierror/LICENSE

@@ -1,353 +0,0 @@
-Mozilla Public License, version 2.0
-
-1. Definitions
-
-1.1. “Contributor”
-
-     means each individual or legal entity that creates, contributes to the
-     creation of, or owns Covered Software.
-
-1.2. “Contributor Version”
-
-     means the combination of the Contributions of others (if any) used by a
-     Contributor and that particular Contributor’s Contribution.
-
-1.3. “Contribution”
-
-     means Covered Software of a particular Contributor.
-
-1.4. “Covered Software”
-
-     means Source Code Form to which the initial Contributor has attached the
-     notice in Exhibit A, the Executable Form of such Source Code Form, and
-     Modifications of such Source Code Form, in each case including portions
-     thereof.
-
-1.5. “Incompatible With Secondary Licenses”
-     means
-
-     a. that the initial Contributor has attached the notice described in
-        Exhibit B to the Covered Software; or
-
-     b. that the Covered Software was made available under the terms of version
-        1.1 or earlier of the License, but not also under the terms of a
-        Secondary License.
-
-1.6. “Executable Form”
-
-     means any form of the work other than Source Code Form.
-
-1.7. “Larger Work”
-
-     means a work that combines Covered Software with other material, in a separate
-     file or files, that is not Covered Software.
-
-1.8. “License”
-
-     means this document.
-
-1.9. “Licensable”
-
-     means having the right to grant, to the maximum extent possible, whether at the
-     time of the initial grant or subsequently, any and all of the rights conveyed by
-     this License.
-
-1.10. “Modifications”
-
-     means any of the following:
-
-     a. any file in Source Code Form that results from an addition to, deletion
-        from, or modification of the contents of Covered Software; or
-
-     b. any new file in Source Code Form that contains any Covered Software.
-
-1.11. “Patent Claims” of a Contributor
-
-      means any patent claim(s), including without limitation, method, process,
-      and apparatus claims, in any patent Licensable by such Contributor that
-      would be infringed, but for the grant of the License, by the making,
-      using, selling, offering for sale, having made, import, or transfer of
-      either its Contributions or its Contributor Version.
-
-1.12. “Secondary License”
-
-      means either the GNU General Public License, Version 2.0, the GNU Lesser
-      General Public License, Version 2.1, the GNU Affero General Public
-      License, Version 3.0, or any later versions of those licenses.
-
-1.13. “Source Code Form”
-
-      means the form of the work preferred for making modifications.
-
-1.14. “You” (or “Your”)
-
-      means an individual or a legal entity exercising rights under this
-      License. For legal entities, “You” includes any entity that controls, is
-      controlled by, or is under common control with You. For purposes of this
-      definition, “control” means (a) the power, direct or indirect, to cause
-      the direction or management of such entity, whether by contract or
-      otherwise, or (b) ownership of more than fifty percent (50%) of the
-      outstanding shares or beneficial ownership of such entity.
-
-
-2. License Grants and Conditions
-
-2.1. Grants
-
-     Each Contributor hereby grants You a world-wide, royalty-free,
-     non-exclusive license:
-
-     a. under intellectual property rights (other than patent or trademark)
-        Licensable by such Contributor to use, reproduce, make available,
-        modify, display, perform, distribute, and otherwise exploit its
-        Contributions, either on an unmodified basis, with Modifications, or as
-        part of a Larger Work; and
-
-     b. under Patent Claims of such Contributor to make, use, sell, offer for
-        sale, have made, import, and otherwise transfer either its Contributions
-        or its Contributor Version.
-
-2.2. Effective Date
-
-     The licenses granted in Section 2.1 with respect to any Contribution become
-     effective for each Contribution on the date the Contributor first distributes
-     such Contribution.
-
-2.3. Limitations on Grant Scope
-
-     The licenses granted in this Section 2 are the only rights granted under this
-     License. No additional rights or licenses will be implied from the distribution
-     or licensing of Covered Software under this License. Notwithstanding Section
-     2.1(b) above, no patent license is granted by a Contributor:
-
-     a. for any code that a Contributor has removed from Covered Software; or
-
-     b. for infringements caused by: (i) Your and any other third party’s
-        modifications of Covered Software, or (ii) the combination of its
-        Contributions with other software (except as part of its Contributor
-        Version); or
-
-     c. under Patent Claims infringed by Covered Software in the absence of its
-        Contributions.
-
-     This License does not grant any rights in the trademarks, service marks, or
-     logos of any Contributor (except as may be necessary to comply with the
-     notice requirements in Section 3.4).
-
-2.4. Subsequent Licenses
-
-     No Contributor makes additional grants as a result of Your choice to
-     distribute the Covered Software under a subsequent version of this License
-     (see Section 10.2) or under the terms of a Secondary License (if permitted
-     under the terms of Section 3.3).
-
-2.5. Representation
-
-     Each Contributor represents that the Contributor believes its Contributions
-     are its original creation(s) or it has sufficient rights to grant the
-     rights to its Contributions conveyed by this License.
-
-2.6. Fair Use
-
-     This License is not intended to limit any rights You have under applicable
-     copyright doctrines of fair use, fair dealing, or other equivalents.
-
-2.7. Conditions
-
-     Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in
-     Section 2.1.
-
-
-3. Responsibilities
-
-3.1. Distribution of Source Form
-
-     All distribution of Covered Software in Source Code Form, including any
-     Modifications that You create or to which You contribute, must be under the
-     terms of this License. You must inform recipients that the Source Code Form
-     of the Covered Software is governed by the terms of this License, and how
-     they can obtain a copy of this License. You may not attempt to alter or
-     restrict the recipients’ rights in the Source Code Form.
-
-3.2. Distribution of Executable Form
-
-     If You distribute Covered Software in Executable Form then:
-
-     a. such Covered Software must also be made available in Source Code Form,
-        as described in Section 3.1, and You must inform recipients of the
-        Executable Form how they can obtain a copy of such Source Code Form by
-        reasonable means in a timely manner, at a charge no more than the cost
-        of distribution to the recipient; and
-
-     b. You may distribute such Executable Form under the terms of this License,
-        or sublicense it under different terms, provided that the license for
-        the Executable Form does not attempt to limit or alter the recipients’
-        rights in the Source Code Form under this License.
-
-3.3. Distribution of a Larger Work
-
-     You may create and distribute a Larger Work under terms of Your choice,
-     provided that You also comply with the requirements of this License for the
-     Covered Software. If the Larger Work is a combination of Covered Software
-     with a work governed by one or more Secondary Licenses, and the Covered
-     Software is not Incompatible With Secondary Licenses, this License permits
-     You to additionally distribute such Covered Software under the terms of
-     such Secondary License(s), so that the recipient of the Larger Work may, at
-     their option, further distribute the Covered Software under the terms of
-     either this License or such Secondary License(s).
-
-3.4. Notices
-
-     You may not remove or alter the substance of any license notices (including
-     copyright notices, patent notices, disclaimers of warranty, or limitations
-     of liability) contained within the Source Code Form of the Covered
-     Software, except that You may alter any license notices to the extent
-     required to remedy known factual inaccuracies.
-
-3.5. Application of Additional Terms
-
-     You may choose to offer, and to charge a fee for, warranty, support,
-     indemnity or liability obligations to one or more recipients of Covered
-     Software. However, You may do so only on Your own behalf, and not on behalf
-     of any Contributor. You must make it absolutely clear that any such
-     warranty, support, indemnity, or liability obligation is offered by You
-     alone, and You hereby agree to indemnify every Contributor for any
-     liability incurred by such Contributor as a result of warranty, support,
-     indemnity or liability terms You offer. You may include additional
-     disclaimers of warranty and limitations of liability specific to any
-     jurisdiction.
-
-4. Inability to Comply Due to Statute or Regulation
-
-   If it is impossible for You to comply with any of the terms of this License
-   with respect to some or all of the Covered Software due to statute, judicial
-   order, or regulation then You must: (a) comply with the terms of this License
-   to the maximum extent possible; and (b) describe the limitations and the code
-   they affect. Such description must be placed in a text file included with all
-   distributions of the Covered Software under this License. Except to the
-   extent prohibited by statute or regulation, such description must be
-   sufficiently detailed for a recipient of ordinary skill to be able to
-   understand it.
-
-5. Termination
-
-5.1. The rights granted under this License will terminate automatically if You
-     fail to comply with any of its terms. However, if You become compliant,
-     then the rights granted under this License from a particular Contributor
-     are reinstated (a) provisionally, unless and until such Contributor
-     explicitly and finally terminates Your grants, and (b) on an ongoing basis,
-     if such Contributor fails to notify You of the non-compliance by some
-     reasonable means prior to 60 days after You have come back into compliance.
-     Moreover, Your grants from a particular Contributor are reinstated on an
-     ongoing basis if such Contributor notifies You of the non-compliance by
-     some reasonable means, this is the first time You have received notice of
-     non-compliance with this License from such Contributor, and You become
-     compliant prior to 30 days after Your receipt of the notice.
-
-5.2. If You initiate litigation against any entity by asserting a patent
-     infringement claim (excluding declaratory judgment actions, counter-claims,
-     and cross-claims) alleging that a Contributor Version directly or
-     indirectly infringes any patent, then the rights granted to You by any and
-     all Contributors for the Covered Software under Section 2.1 of this License
-     shall terminate.
-
-5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user
-     license agreements (excluding distributors and resellers) which have been
-     validly granted by You or Your distributors under this License prior to
-     termination shall survive termination.
-
-6. Disclaimer of Warranty
-
-   Covered Software is provided under this License on an “as is” basis, without
-   warranty of any kind, either expressed, implied, or statutory, including,
-   without limitation, warranties that the Covered Software is free of defects,
-   merchantable, fit for a particular purpose or non-infringing. The entire
-   risk as to the quality and performance of the Covered Software is with You.
-   Should any Covered Software prove defective in any respect, You (not any
-   Contributor) assume the cost of any necessary servicing, repair, or
-   correction. This disclaimer of warranty constitutes an essential part of this
-   License. No use of  any Covered Software is authorized under this License
-   except under this disclaimer.
-
-7. Limitation of Liability
-
-   Under no circumstances and under no legal theory, whether tort (including
-   negligence), contract, or otherwise, shall any Contributor, or anyone who
-   distributes Covered Software as permitted above, be liable to You for any
-   direct, indirect, special, incidental, or consequential damages of any
-   character including, without limitation, damages for lost profits, loss of
-   goodwill, work stoppage, computer failure or malfunction, or any and all
-   other commercial damages or losses, even if such party shall have been
-   informed of the possibility of such damages. This limitation of liability
-   shall not apply to liability for death or personal injury resulting from such
-   party’s negligence to the extent applicable law prohibits such limitation.
-   Some jurisdictions do not allow the exclusion or limitation of incidental or
-   consequential damages, so this exclusion and limitation may not apply to You.
-
-8. Litigation
-
-   Any litigation relating to this License may be brought only in the courts of
-   a jurisdiction where the defendant maintains its principal place of business
-   and such litigation shall be governed by laws of that jurisdiction, without
-   reference to its conflict-of-law provisions. Nothing in this Section shall
-   prevent a party’s ability to bring cross-claims or counter-claims.
-
-9. Miscellaneous
-
-   This License represents the complete agreement concerning the subject matter
-   hereof. If any provision of this License is held to be unenforceable, such
-   provision shall be reformed only to the extent necessary to make it
-   enforceable. Any law or regulation which provides that the language of a
-   contract shall be construed against the drafter shall not be used to construe
-   this License against a Contributor.
-
-
-10. Versions of the License
-
-10.1. New Versions
-
-      Mozilla Foundation is the license steward. Except as provided in Section
-      10.3, no one other than the license steward has the right to modify or
-      publish new versions of this License. Each version will be given a
-      distinguishing version number.
-
-10.2. Effect of New Versions
-
-      You may distribute the Covered Software under the terms of the version of
-      the License under which You originally received the Covered Software, or
-      under the terms of any subsequent version published by the license
-      steward.
-
-10.3. Modified Versions
-
-      If you create software not governed by this License, and you want to
-      create a new license for such software, you may create and use a modified
-      version of this License if you rename the license and remove any
-      references to the name of the license steward (except to note that such
-      modified license differs from this License).
-
-10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses
-      If You choose to distribute Source Code Form that is Incompatible With
-      Secondary Licenses under the terms of this version of the License, the
-      notice described in Exhibit B of this License must be attached.
-
-Exhibit A - Source Code Form License Notice
-
-      This Source Code Form is subject to the
-      terms of the Mozilla Public License, v.
-      2.0. If a copy of the MPL was not
-      distributed with this file, You can
-      obtain one at
-      http://mozilla.org/MPL/2.0/.
-
-If it is not possible or desirable to put the notice in a particular file, then
-You may include the notice in a location (such as a LICENSE file in a relevant
-directory) where a recipient would be likely to look for such a notice.
-
-You may add additional accurate notices of copyright ownership.
-
-Exhibit B - “Incompatible With Secondary Licenses” Notice
-
-      This Source Code Form is “Incompatible
-      With Secondary Licenses”, as defined by
-      the Mozilla Public License, v. 2.0.

vendor/github.com/hashicorp/go-multierror/Makefile

@@ -1,31 +0,0 @@
-TEST?=./...
-
-default: test
-
-# test runs the test suite and vets the code.
-test: generate
-	@echo "==> Running tests..."
-	@go list $(TEST) \
-		| grep -v "/vendor/" \
-		| xargs -n1 go test -timeout=60s -parallel=10 ${TESTARGS}
-
-# testrace runs the race checker
-testrace: generate
-	@echo "==> Running tests (race)..."
-	@go list $(TEST) \
-		| grep -v "/vendor/" \
-		| xargs -n1 go test -timeout=60s -race ${TESTARGS}
-
-# updatedeps installs all the dependencies needed to run and build.
-updatedeps:
-	@sh -c "'${CURDIR}/scripts/deps.sh' '${NAME}'"
-
-# generate runs `go generate` to build the dynamically generated source files.
-generate:
-	@echo "==> Generating..."
-	@find . -type f -name '.DS_Store' -delete
-	@go list ./... \
-		| grep -v "/vendor/" \
-		| xargs -n1 go generate
-
-.PHONY: default test testrace updatedeps generate

vendor/github.com/hashicorp/go-multierror/README.md

@@ -1,97 +0,0 @@
-# go-multierror
-
-[![Build Status](http://img.shields.io/travis/hashicorp/go-multierror.svg?style=flat-square)][travis]
-[![Go Documentation](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)][godocs]
-
-[travis]: https://travis-ci.org/hashicorp/go-multierror
-[godocs]: https://godoc.org/github.com/hashicorp/go-multierror
-
-`go-multierror` is a package for Go that provides a mechanism for
-representing a list of `error` values as a single `error`.
-
-This allows a function in Go to return an `error` that might actually
-be a list of errors. If the caller knows this, they can unwrap the
-list and access the errors. If the caller doesn't know, the error
-formats to a nice human-readable format.
-
-`go-multierror` implements the
-[errwrap](https://github.com/hashicorp/errwrap) interface so that it can
-be used with that library, as well.
-
-## Installation and Docs
-
-Install using `go get github.com/hashicorp/go-multierror`.
-
-Full documentation is available at
-http://godoc.org/github.com/hashicorp/go-multierror
-
-## Usage
-
-go-multierror is easy to use and purposely built to be unobtrusive in
-existing Go applications/libraries that may not be aware of it.
-
-**Building a list of errors**
-
-The `Append` function is used to create a list of errors. This function
-behaves a lot like the Go built-in `append` function: it doesn't matter
-if the first argument is nil, a `multierror.Error`, or any other `error`,
-the function behaves as you would expect.
-
-```go
-var result error
-
-if err := step1(); err != nil {
-	result = multierror.Append(result, err)
-}
-if err := step2(); err != nil {
-	result = multierror.Append(result, err)
-}
-
-return result
-```
-
-**Customizing the formatting of the errors**
-
-By specifying a custom `ErrorFormat`, you can customize the format
-of the `Error() string` function:
-
-```go
-var result *multierror.Error
-
-// ... accumulate errors here, maybe using Append
-
-if result != nil {
-	result.ErrorFormat = func([]error) string {
-		return "errors!"
-	}
-}
-```
-
-**Accessing the list of errors**
-
-`multierror.Error` implements `error` so if the caller doesn't know about
-multierror, it will work just fine. But if you're aware a multierror might
-be returned, you can use type switches to access the list of errors:
-
-```go
-if err := something(); err != nil {
-	if merr, ok := err.(*multierror.Error); ok {
-		// Use merr.Errors
-	}
-}
-```
-
-**Returning a multierror only if there are errors**
-
-If you build a `multierror.Error`, you can use the `ErrorOrNil` function
-to return an `error` implementation only if there are errors to return:
-
-```go
-var result *multierror.Error
-
-// ... accumulate errors here
-
-// Return the `error` only if errors were added to the multierror, otherwise
-// return nil since there are no errors.
-return result.ErrorOrNil()
-```

vendor/github.com/hashicorp/go-multierror/append.go

@@ -1,41 +0,0 @@
-package multierror
-
-// Append is a helper function that will append more errors
-// onto an Error in order to create a larger multi-error.
-//
-// If err is not a multierror.Error, then it will be turned into
-// one. If any of the errs are multierr.Error, they will be flattened
-// one level into err.
-func Append(err error, errs ...error) *Error {
-	switch err := err.(type) {
-	case *Error:
-		// Typed nils can reach here, so initialize if we are nil
-		if err == nil {
-			err = new(Error)
-		}
-
-		// Go through each error and flatten
-		for _, e := range errs {
-			switch e := e.(type) {
-			case *Error:
-				if e != nil {
-					err.Errors = append(err.Errors, e.Errors...)
-				}
-			default:
-				if e != nil {
-					err.Errors = append(err.Errors, e)
-				}
-			}
-		}
-
-		return err
-	default:
-		newErrs := make([]error, 0, len(errs)+1)
-		if err != nil {
-			newErrs = append(newErrs, err)
-		}
-		newErrs = append(newErrs, errs...)
-
-		return Append(&Error{}, newErrs...)
-	}
-}

vendor/github.com/hashicorp/go-multierror/flatten.go

@@ -1,26 +0,0 @@
-package multierror
-
-// Flatten flattens the given error, merging any *Errors together into
-// a single *Error.
-func Flatten(err error) error {
-	// If it isn't an *Error, just return the error as-is
-	if _, ok := err.(*Error); !ok {
-		return err
-	}
-
-	// Otherwise, make the result and flatten away!
-	flatErr := new(Error)
-	flatten(err, flatErr)
-	return flatErr
-}
-
-func flatten(err error, flatErr *Error) {
-	switch err := err.(type) {
-	case *Error:
-		for _, e := range err.Errors {
-			flatten(e, flatErr)
-		}
-	default:
-		flatErr.Errors = append(flatErr.Errors, err)
-	}
-}

vendor/github.com/hashicorp/go-multierror/format.go

@@ -1,27 +0,0 @@
-package multierror
-
-import (
-	"fmt"
-	"strings"
-)
-
-// ErrorFormatFunc is a function callback that is called by Error to
-// turn the list of errors into a string.
-type ErrorFormatFunc func([]error) string
-
-// ListFormatFunc is a basic formatter that outputs the number of errors
-// that occurred along with a bullet point list of the errors.
-func ListFormatFunc(es []error) string {
-	if len(es) == 1 {
-		return fmt.Sprintf("1 error occurred:\n\t* %s\n\n", es[0])
-	}
-
-	points := make([]string, len(es))
-	for i, err := range es {
-		points[i] = fmt.Sprintf("* %s", err)
-	}
-
-	return fmt.Sprintf(
-		"%d errors occurred:\n\t%s\n\n",
-		len(es), strings.Join(points, "\n\t"))
-}