Unify logging process

output/output.go

@@ -0,0 +1,52 @@
+package output
+
+import (
+	"fmt"
+	"github.com/fatih/color"
+)
+
+const (
+	MaxContentLines = 50
+)
+
+// Prints a block of information with the given headline
+// If content is empty, printing the headline is omitted.
+// If the content is longer than MaxContentLines, content is cut.
+func PrintBlock(headline string, content string) {
+	// Print a newline to add some space between blocks
+	fmt.Println("")
+
+	// Check if we need to print a headline
+	if len(content) > 0 {
+		// We have content, we can print the headline
+		headlineColor := color.New(color.FgRed, color.Bold)
+		headlineColor.Println(headline)
+	}
+
+	// Cut to MaxContentLines if required
+	cutCont := cutContent(content)
+	fmt.Print(cutCont)
+}
+
+// Cut content after MaxContentLines lines
+func cutContent(content string) string {
+	numNewlines := 0
+
+	// iterate over every character
+	for i, c := range content {
+		// check if character is newline
+		if c == '\n' {
+			// it is, count occurrence
+			numNewlines++
+
+			// Check if we already hit our limit yet
+			if numNewlines == MaxContentLines {
+				// Found nth newline, return content up to this position.
+				return content[:i+1] // +1 to include the last newline as well
+			}
+		}
+	}
+
+	// We are done before reaching the cut limit; return the whole content
+	return content
+}