func (mc *mergeCommand) execute() error {
if len(mc.translationFiles) < 1 {
return fmt.Errorf("need at least one translation file to parse")
}
if _, err := locale.New(mc.sourceLocaleID); err != nil {
return fmt.Errorf("invalid source locale %s: %s", mc.sourceLocaleID, err)
}
marshal, err := newMarshalFunc(mc.format)
if err != nil {
return err
}
bundle := bundle.New()
for _, tf := range mc.translationFiles {
if err := bundle.LoadTranslationFile(tf); err != nil {
return fmt.Errorf("failed to load translation file %s because %s\n", tf, err)
}
}
translations := bundle.Translations()
sourceTranslations := translations[mc.sourceLocaleID]
for translationID, src := range sourceTranslations {
for _, localeTranslations := range translations {
if dst := localeTranslations[translationID]; dst == nil || reflect.TypeOf(src) != reflect.TypeOf(dst) {
localeTranslations[translationID] = src.UntranslatedCopy()
}
}
}
for localeID, localeTranslations := range translations {
locale := locale.MustNew(localeID)
all := filter(localeTranslations, func(t translation.Translation) translation.Translation {
return t.Normalize(locale.Language)
})
if err := mc.writeFile("all", all, localeID, marshal); err != nil {
return err
}
untranslated := filter(localeTranslations, func(t translation.Translation) translation.Translation {
if t.Incomplete(locale.Language) {
return t.Normalize(locale.Language).Backfill(sourceTranslations[t.ID()])
}
return nil
})
if err := mc.writeFile("untranslated", untranslated, localeID, marshal); err != nil {
return err
}
}
return nil
}
// If translationID is a plural form, then the first variadic argument must be an integer type
// (int, int8, int16, int32, int64) or a float formatted as a string (e.g. "123.45").
// The second variadic argument may be a map[string]interface{} that contains template data.
type TranslateFunc func(translationID string, args ...interface{}) string
// IdentityTfunc returns a TranslateFunc that always returns the translationID passed to it.
//
// It is a useful placeholder when parsing a text/template or html/template
// before the actual Tfunc is available.
func IdentityTfunc() TranslateFunc {
return func(translationID string, args ...interface{}) string {
return translationID
}
}
var defaultBundle = bundle.New()
// MustLoadTranslationFile is similar to LoadTranslationFile
// except it panics if an error happens.
func MustLoadTranslationFile(filename string) {
defaultBundle.MustLoadTranslationFile(filename)
}
// LoadTranslationFile loads the translations from filename into memory.
//
// The locale that the translations are associated with is parsed from the filename.
//
// Generally you should load translation files once during your program's initialization.
func LoadTranslationFile(filename string) error {
return defaultBundle.LoadTranslationFile(filename)
}