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// 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 (
"sync"
"github.com/gohugoio/hugo/common/maps"
"sort"
"errors"
"fmt"
"github.com/gohugoio/hugo/langs"
"github.com/gohugoio/hugo/config"
"github.com/spf13/cast"
)
// 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()
}
func toSortedLanguages(cfg config.Provider, l map[string]interface{}) (langs.Languages, error) {
languages := make(langs.Languages, len(l))
i := 0
for lang, langConf := range l {
langsMap, err := cast.ToStringMapE(langConf)
if err != nil {
return nil, fmt.Errorf("Language config is not a map: %T", langConf)
}
language := langs.NewLanguage(lang, cfg)
for loki, v := range langsMap {
switch loki {
case "title":
language.Title = cast.ToString(v)
case "languagename":
language.LanguageName = cast.ToString(v)
case "weight":
language.Weight = cast.ToInt(v)
case "contentdir":
language.ContentDir = cast.ToString(v)
case "disabled":
language.Disabled = cast.ToBool(v)
case "params":
m := cast.ToStringMap(v)
// Needed for case insensitive fetching of params values
maps.ToLower(m)
for k, vv := range m {
language.SetParam(k, vv)
}
}
// Put all into the Params map
language.SetParam(loki, v)
// Also set it in the configuration map (for baseURL etc.)
language.Set(loki, v)
}
languages[i] = language
i++
}
sort.Sort(languages)
return languages, nil
}
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