releaser-pleaser/internal/updater/changelog.go

32 lines
704 B
Go

package updater
import (
"fmt"
"regexp"
)
const (
ChangelogHeader = "# Changelog"
ChangelogFile = "CHANGELOG.md"
)
var (
ChangelogUpdaterHeaderRegex = regexp.MustCompile(`^# Changelog\n`)
)
func Changelog(info ReleaseInfo) Updater {
return func(content string) (string, error) {
headerIndex := ChangelogUpdaterHeaderRegex.FindStringIndex(content)
if headerIndex == nil && len(content) != 0 {
return "", fmt.Errorf("unexpected format of CHANGELOG.md, header does not match")
}
if headerIndex != nil {
// Remove the header from the content
content = content[headerIndex[1]:]
}
content = ChangelogHeader + "\n\n" + info.ChangelogEntry + content
return content, nil
}
}