Add tool to generate isoLangs
The tool generates the isoLangs by downloading the available target
languages directly from Google Translate, and getting the full language
information from the local isoLangs.json file.
Change-Id: I6b03696ea604faef5d24cf429ce3608906a8f534
diff --git a/tools/langs/langs.go b/tools/langs/langs.go
new file mode 100644
index 0000000..c1bbe90
--- /dev/null
+++ b/tools/langs/langs.go
@@ -0,0 +1,85 @@
+package main
+
+import (
+ "encoding/json"
+ "fmt"
+ "io/ioutil"
+ "log"
+ "net/http"
+ "os"
+)
+
+const isoLangsFileName = "isoLangs.json"
+
+type Language struct {
+ CodeName string `json:"-"`
+ Name string `json:"name"`
+ NativeName string `json:"nativeName"`
+}
+
+func getLanguage(isoLangs map[string]Language, lang string) (Language, error) {
+ for currLangCode, currLang := range isoLangs {
+ if currLangCode == lang {
+ currLang.CodeName = lang
+ return currLang, nil
+ }
+ }
+
+ return Language{}, fmt.Errorf("Didn't find language '%v' in isoLangs", lang)
+}
+
+func main() {
+ log.SetPrefix("[langs] ")
+ log.SetFlags(0)
+
+ isoLangsFile, err := os.Open(isoLangsFileName)
+ if err != nil {
+ log.Fatalf("Couldn't open file %v, error: %v", isoLangsFileName, err)
+ }
+ defer isoLangsFile.Close()
+
+ isoLangsRawData, err := ioutil.ReadAll(isoLangsFile)
+ if err != nil {
+ log.Fatalf("Couldn't read file %v, error: %v", isoLangsFileName, err)
+ }
+
+ var isoLangs map[string]Language
+ if err := json.Unmarshal(isoLangsRawData, &isoLangs); err != nil {
+ log.Fatalf("Couldn't unmarshal JSON file %v, error: %v", isoLangsFileName, err)
+ }
+
+ resp, err := http.Get("http://translate.google.com/translate_a/l?client=chrome")
+ if err != nil {
+ log.Fatalf("Couldn't get current Google Translate languages from server, error: %v", err)
+ }
+ defer resp.Body.Close()
+
+ gTranslateRawData, err := ioutil.ReadAll(resp.Body)
+ if err != nil {
+ log.Fatalf("Couldn't read body data from Google Translate languages request, error: %v", err)
+ }
+
+ var gTranslateJson map[string]interface{}
+ if err := json.Unmarshal(gTranslateRawData, &gTranslateJson); err != nil {
+ log.Fatalf("Couldn't unmarshal JSON data from the Google Translate languages request, error: %v", err)
+ }
+
+ gTranslateLangs := gTranslateJson["tl"].(map[string]interface{})
+ langs := make(map[string]Language, len(gTranslateLangs))
+
+ for langCode, name := range gTranslateLangs {
+ isoLang, err := getLanguage(isoLangs, langCode)
+ if err != nil {
+ log.Fatalf("Didn't find language '%v' in isoLangs, error: %v", langCode, err)
+ }
+ isoLang.Name = name.(string)
+ langs[langCode] = isoLang
+ }
+
+ result, err := json.MarshalIndent(langs, "", " ")
+ if err != nil {
+ log.Fatal("Couldn't marshal the final JSON, error: %v", err)
+ }
+
+ fmt.Printf("%v", string(result))
+}