locale: sync translations and rework enumeration

We now enumerate directories in locale/ and rename them if Crowdin is
giving us a different language code.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 37 insertions, 2 deletions

diff --git a/gotext.go b/gotext.go
index e9a59aea..d61ce393 100644
--- a/gotext.go
+++ b/gotext.go
@@ -1,5 +1,5 @@
 // +build generate
-//go:generate go run gotext.go -srclang=en update -out=zgotext.go -lang=en,de,fr,it,ja,ru,sl,zh-CN
+//go:generate go run gotext.go
 
 /* SPDX-License-Identifier: MIT
  *
@@ -9,12 +9,47 @@
 package main
 
 import (
+	"encoding/json"
 	"io/ioutil"
 	"os"
 	"os/exec"
+	"path/filepath"
+	"strings"
+
+	"golang.org/x/text/message/pipeline"
 )
 
 func main() {
+	langDirs, err := ioutil.ReadDir("locales")
+	if err != nil {
+		panic(err)
+	}
+	var langs []string
+	for _, dir := range langDirs {
+		if !dir.IsDir() {
+			continue
+		}
+		lang := dir.Name()
+		if jsonData, err := ioutil.ReadFile(filepath.Join("locales", lang, "messages.gotext.json")); err == nil {
+			var translations pipeline.Messages
+			if err := json.Unmarshal(jsonData, &translations); err != nil {
+				panic(err)
+			}
+			lang = translations.Language.String()
+			if lang != dir.Name() {
+				err = os.Rename(filepath.Join("locales", dir.Name()), filepath.Join("locales", lang))
+				if err != nil {
+					panic(err)
+				}
+			}
+		} else if os.IsNotExist(err) {
+			panic(err)
+		}
+		langs = append(langs, lang)
+	}
+	if len(langs) == 0 {
+		panic("no locales found")
+	}
 	gotext, err := ioutil.TempFile("", "gotext*.exe")
 	if err != nil {
 		panic(err)
@@ -29,7 +64,7 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
-	cmd = exec.Command(gotextFilename, os.Args[1:]...)
+	cmd = exec.Command(gotextFilename, "-srclang=en", "update", "-out=zgotext.go", "-lang="+strings.Join(langs, ","))
 	cmd.Env = append(os.Environ(), "GOOS=windows", "GOARCH=amd64", "CGO_ENABLED=1", "CC=x86_64-w64-mingw32-gcc")
 	cmd.Stdout = os.Stdout
 	cmd.Stderr = os.Stderr