blob: 4681d4d7c084389129b62ab93a3ac942fda1f58f (
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package main
import (
"fmt"
"os"
"regexp"
)
func main() {
argv := os.Args
argc := len(argv)
if argc != 2 {
return
}
branchName := argv[1]
fmt.Println(extractIssueNumberFromBranchName(branchName))
}
// * 123 => #123
// * 123-suffix => #123
// * feature/123 => #123
// * feature/123-suffix => #123
// * feature/prefix-123 => prefix-123
// * feature/prefix-123-suffix => prefix-123
func extractIssueNumberFromBranchName(branchName string) string {
pattern := regexp.MustCompile(`\A(?:\w+/)?(\w+-)?(\d+)(?:-\w+)*\z`)
matches := pattern.FindSubmatch([]byte(branchName))
if len(matches) != 3 {
return ""
}
var prefix string
if len(matches[1]) == 0 {
prefix = "#"
} else {
prefix = string(matches[1])
}
return prefix + string(matches[2])
}
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