112 lines
2.4 KiB
Go
112 lines
2.4 KiB
Go
package version
|
|
|
|
import (
|
|
"errors"
|
|
"strconv"
|
|
"strings"
|
|
)
|
|
|
|
type Version struct {
|
|
Major, Minor uint64
|
|
}
|
|
|
|
var (
|
|
// ErrInvalidSemVer is returned if a version can not be parsed
|
|
ErrInvalidSemVer = errors.New("invalid semantic version")
|
|
|
|
// ErrUnsupportedVer is returned if a version out of supported range
|
|
ErrUnsupportedVer = errors.New("the version is out of supported range")
|
|
|
|
php7RangeStart = &Version{Major: 7}
|
|
php7RangeEnd = &Version{Major: 7, Minor: 4}
|
|
|
|
php8RangeStart = &Version{Major: 8}
|
|
php8RangeEnd = &Version{Major: 8, Minor: 2}
|
|
)
|
|
|
|
func New(v string) (*Version, error) {
|
|
// Split the parts into [0]Major, [1]Minor
|
|
parts := strings.SplitN(v, ".", 2)
|
|
if len(parts) != 2 {
|
|
return nil, ErrInvalidSemVer
|
|
}
|
|
|
|
ver := new(Version)
|
|
var err error
|
|
|
|
ver.Major, err = strconv.ParseUint(parts[0], 10, 64)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
ver.Minor, err = strconv.ParseUint(parts[1], 10, 64)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return ver, nil
|
|
}
|
|
|
|
func (v *Version) Validate() error {
|
|
if !v.InRange(php7RangeStart, php7RangeEnd) &&
|
|
!v.InRange(php8RangeStart, php8RangeEnd) {
|
|
return ErrUnsupportedVer
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// Less tests if one version is less than another one
|
|
func (v *Version) Less(o *Version) bool {
|
|
return v.Compare(o) < 0
|
|
}
|
|
|
|
// LessOrEqual tests if one version is less than another one or equal
|
|
func (v *Version) LessOrEqual(o *Version) bool {
|
|
return v.Compare(o) <= 0
|
|
}
|
|
|
|
// Greater tests if one version is greater than another one
|
|
func (v *Version) Greater(o *Version) bool {
|
|
return v.Compare(o) > 0
|
|
}
|
|
|
|
// GreaterOrEqual tests if one version is greater than another one or equal
|
|
func (v *Version) GreaterOrEqual(o *Version) bool {
|
|
return v.Compare(o) >= 0
|
|
}
|
|
|
|
// InRange tests if version is in range in another one
|
|
func (v *Version) InRange(s, e *Version) bool {
|
|
return v.Compare(s) >= 0 && v.Compare(e) <= 0
|
|
}
|
|
|
|
func (v *Version) InPhp7Range() bool {
|
|
return v.InRange(php7RangeStart, php7RangeEnd)
|
|
}
|
|
|
|
func (v *Version) InPhp8Range() bool {
|
|
return v.InRange(php8RangeStart, php8RangeEnd)
|
|
}
|
|
|
|
// Compare compares this version to another one. It returns -1, 0, or 1 if
|
|
// the version smaller, equal, or larger than the other version.
|
|
func (v *Version) Compare(o *Version) int {
|
|
if d := compareSegment(v.Major, o.Major); d != 0 {
|
|
return d
|
|
}
|
|
|
|
return compareSegment(v.Minor, o.Minor)
|
|
}
|
|
|
|
func compareSegment(v, o uint64) int {
|
|
if v < o {
|
|
return -1
|
|
}
|
|
if v > o {
|
|
return 1
|
|
}
|
|
|
|
return 0
|
|
}
|