hugo/i18n/translationProvider.go
Kevin Gimbel bb04010cbf i18n: Allow custom language codes
Use the new `RegisterPluralSpec` function to register all defined
languages. This allows the usage of language identifiers which are not
part of the Unicode CLDR standard.

Closes #3564
2017-11-04 10:48:29 +01:00

93 lines
2.6 KiB
Go

// Copyright 2017 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package i18n
import (
"fmt"
"sync"
"github.com/gohugoio/hugo/deps"
"github.com/gohugoio/hugo/source"
"github.com/nicksnyder/go-i18n/i18n/bundle"
"github.com/nicksnyder/go-i18n/i18n/language"
)
// Unfortunately this needs to be global, see
// https://github.com/nicksnyder/go-i18n/issues/82
var tpMu sync.Mutex
// TranslationProvider provides translation handling, i.e. loading
// of bundles etc.
type TranslationProvider struct {
t Translator
}
// NewTranslationProvider creates a new translation provider.
func NewTranslationProvider() *TranslationProvider {
return &TranslationProvider{}
}
// Update updates the i18n func in the provided Deps.
func (tp *TranslationProvider) Update(d *deps.Deps) error {
tpMu.Lock()
defer tpMu.Unlock()
dir := d.PathSpec.AbsPathify(d.Cfg.GetString("i18nDir"))
sp := source.NewSourceSpec(d.Cfg, d.Fs)
sources := []source.Input{sp.NewFilesystem(dir)}
themeI18nDir, err := d.PathSpec.GetThemeI18nDirPath()
if err == nil {
sources = []source.Input{sp.NewFilesystem(themeI18nDir), sources[0]}
}
d.Log.DEBUG.Printf("Load I18n from %q", sources)
i18nBundle := bundle.New()
langs := []string{}
for _, currentSource := range sources {
for _, r := range currentSource.Files() {
langs = append(langs, r.BaseFileName())
}
}
// We need to register all language codes as "plural spec" to prevent errors with unknown language codes.
// see https://github.com/gohugoio/hugo/issues/3564
ps := &language.PluralSpec{}
language.RegisterPluralSpec(langs, ps)
for _, currentSource := range sources {
for _, r := range currentSource.Files() {
err := i18nBundle.ParseTranslationFileBytes(r.LogicalName(), r.Bytes())
if err != nil {
return fmt.Errorf("Failed to load translations in file %q: %s", r.LogicalName(), err)
}
}
}
tp.t = NewTranslator(i18nBundle, d.Cfg, d.Log)
d.Translate = tp.t.Func(d.Language.Lang)
return nil
}
// Clone sets the language func for the new language.
func (tp *TranslationProvider) Clone(d *deps.Deps) error {
d.Translate = tp.t.Func(d.Language.Lang)
return nil
}