hugo multilingual 源码
hugo multilingual 代码
文件路径：/hugolib/multilingual.go
// Copyright 2019 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 hugolib
import (
"errors"
"sync"
"github.com/gohugoio/hugo/langs"
"github.com/gohugoio/hugo/config"
)
// Multilingual manages the all languages used in a multilingual site.
type Multilingual struct {
Languages langs.Languages
DefaultLang *langs.Language
langMap map[string]*langs.Language
langMapInit sync.Once
}
// Language returns the Language associated with the given string.
func (ml *Multilingual) Language(lang string) *langs.Language {
ml.langMapInit.Do(func() {
ml.langMap = make(map[string]*langs.Language)
for _, l := range ml.Languages {
ml.langMap[l.Lang] = l
}
})
return ml.langMap[lang]
}
func getLanguages(cfg config.Provider) langs.Languages {
if cfg.IsSet("languagesSorted") {
return cfg.Get("languagesSorted").(langs.Languages)
}
return langs.Languages{langs.NewDefaultLanguage(cfg)}
}
func newMultiLingualFromSites(cfg config.Provider, sites ...*Site) (*Multilingual, error) {
languages := make(langs.Languages, len(sites))
for i, s := range sites {
if s.language == nil {
return nil, errors.New("missing language for site")
}
languages[i] = s.language
}
defaultLang := cfg.GetString("defaultContentLanguage")
if defaultLang == "" {
defaultLang = "en"
}
return &Multilingual{Languages: languages, DefaultLang: langs.NewLanguage(defaultLang, cfg)}, nil
}
func (ml *Multilingual) enabled() bool {
return len(ml.Languages) > 1
}
func (s *Site) multilingualEnabled() bool {
if s.h == nil {
return false
}
return s.h.multilingual != nil && s.h.multilingual.enabled()
}
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