diff --git a/build/merge-forgejo-locales.go b/build/merge-forgejo-locales.go
new file mode 100644
index 000000000..0e6b345f2
--- /dev/null
+++ b/build/merge-forgejo-locales.go
@@ -0,0 +1,97 @@
+// Copyright 2022 The Forgejo Authors c/o Codeberg e.V.. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+//go:build ignore
+
+package main
+
+import (
+ "bufio"
+ "os"
+ "regexp"
+ "strings"
+
+ "gopkg.in/ini.v1"
+)
+
+const (
+ trimPrefix = "gitea_"
+ sourceFolder = "options/locales/"
+)
+
+// returns list of locales, still containing the file extension!
+func generate_locale_list() []string {
+ localeFiles, _ := os.ReadDir(sourceFolder)
+ locales := []string{}
+ for _, localeFile := range localeFiles {
+ if !localeFile.IsDir() && strings.HasPrefix(localeFile.Name(), trimPrefix) {
+ locales = append(locales, strings.TrimPrefix(localeFile.Name(), trimPrefix))
+ }
+ }
+ return locales
+}
+
+// replace all occurrences of Gitea with Forgejo
+func renameGiteaForgejo(filename string) []byte {
+ file, err := os.Open(filename)
+ if err != nil {
+ panic(err)
+ }
+
+ replacer := strings.NewReplacer(
+ "Gitea", "Forgejo",
+ "https://docs.gitea.io/en-us/install-from-binary/", "https://forgejo.org/download/#installation-from-binary",
+ "https://github.com/go-gitea/gitea/tree/master/docker", "https://forgejo.org/download/#container-image",
+ "https://docs.gitea.io/en-us/install-from-package/", "https://forgejo.org/download",
+ "https://code.gitea.io/gitea", "https://forgejo.org/download",
+ "code.gitea.io/gitea", "Forgejo",
+ `GitHub`, `Codeberg`,
+ "https://github.com/go-gitea/gitea", "https://codeberg.org/forgejo/forgejo",
+ "https://blog.gitea.io", "https://forgejo.org/news",
+ )
+
+ out := make([]byte, 0, 1024)
+ scanner := bufio.NewScanner(file)
+ scanner.Split(bufio.ScanLines)
+ for scanner.Scan() {
+ line := scanner.Text()
+
+ if strings.HasPrefix(line, "license_desc=") {
+ line = strings.Replace(line, "GitHub", "Forgejo", 1)
+ }
+
+ if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
+ out = append(out, []byte("\n"+line+"\n")...)
+ } else if strings.HasPrefix(line, "settings.web_hook_name_gitea") {
+ out = append(out, []byte("\n"+line+"\n")...)
+ out = append(out, []byte("settings.web_hook_name_forgejo = Forgejo\n")...)
+ } else if strings.HasPrefix(line, "migrate.gitea.description") {
+ re := regexp.MustCompile(`(.*Gitea)`)
+ out = append(out, []byte(re.ReplaceAllString(line, "${1}/Forgejo")+"\n")...)
+ } else {
+ out = append(out, []byte(replacer.Replace(line)+"\n")...)
+ }
+ }
+ file.Close()
+ return out
+}
+
+func main() {
+ locales := generate_locale_list()
+ var err error
+ var localeFile *ini.File
+ for _, locale := range locales {
+ giteaLocale := sourceFolder + "gitea_" + locale
+ localeFile, err = ini.LoadSources(ini.LoadOptions{
+ IgnoreInlineComment: true,
+ }, giteaLocale, renameGiteaForgejo(giteaLocale))
+ if err != nil {
+ panic(err)
+ }
+ err = localeFile.SaveTo("options/locale/locale_" + locale)
+ if err != nil {
+ panic(err)
+ }
+ }
+}