hugo/helpers/language.go
Jorin Vogel 81c13171a9 Add some missing doc comments
As pointed out by the linter, some exported functions and types are
missing doc comments.
The linter warnings have been reduced from 194 to 116.
Not all missing comments have been added in this commit though.
2017-08-03 15:57:51 +02:00

168 lines
4.9 KiB
Go

// Copyright 2016-present 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 helpers
import (
"sort"
"strings"
"sync"
"github.com/gohugoio/hugo/config"
"github.com/spf13/cast"
)
// These are the settings that should only be looked up in the global Viper
// config and not per language.
// This list may not be complete, but contains only settings that we know
// will be looked up in both.
// This isn't perfect, but it is ultimately the user who shoots him/herself in
// the foot.
// See the pathSpec.
var globalOnlySettings = map[string]bool{
strings.ToLower("defaultContentLanguageInSubdir"): true,
strings.ToLower("defaultContentLanguage"): true,
strings.ToLower("multilingual"): true,
}
// Language manages specific-language configuration.
type Language struct {
Lang string
LanguageName string
Title string
Weight int
Cfg config.Provider
params map[string]interface{}
paramsInit sync.Once
}
func (l *Language) String() string {
return l.Lang
}
// NewLanguage creates a new language.
func NewLanguage(lang string, cfg config.Provider) *Language {
return &Language{Lang: lang, Cfg: cfg, params: make(map[string]interface{})}
}
// NewDefaultLanguage creates the default language for a config.Provider.
// If not otherwise specified the default is "en".
func NewDefaultLanguage(cfg config.Provider) *Language {
defaultLang := cfg.GetString("defaultContentLanguage")
if defaultLang == "" {
defaultLang = "en"
}
return NewLanguage(defaultLang, cfg)
}
// Languages is a sortable list of languages.
type Languages []*Language
// NewLanguages creates a sorted list of languages.
// NOTE: function is currently unused.
func NewLanguages(l ...*Language) Languages {
languages := make(Languages, len(l))
for i := 0; i < len(l); i++ {
languages[i] = l[i]
}
sort.Sort(languages)
return languages
}
func (l Languages) Len() int { return len(l) }
func (l Languages) Less(i, j int) bool { return l[i].Weight < l[j].Weight }
func (l Languages) Swap(i, j int) { l[i], l[j] = l[j], l[i] }
// Params retunrs language-specific params merged with the global params.
func (l *Language) Params() map[string]interface{} {
l.paramsInit.Do(func() {
// Merge with global config.
// TODO(bep) consider making this part of a constructor func.
globalParams := l.Cfg.GetStringMap("params")
for k, v := range globalParams {
if _, ok := l.params[k]; !ok {
l.params[k] = v
}
}
})
return l.params
}
// SetParam sets param with the given key and value.
// SetParam is case-insensitive.
func (l *Language) SetParam(k string, v interface{}) {
l.params[strings.ToLower(k)] = v
}
// GetBool returns the value associated with the key as a boolean.
func (l *Language) GetBool(key string) bool { return cast.ToBool(l.Get(key)) }
// GetString returns the value associated with the key as a string.
func (l *Language) GetString(key string) string { return cast.ToString(l.Get(key)) }
// GetInt returns the value associated with the key as an int.
func (l *Language) GetInt(key string) int { return cast.ToInt(l.Get(key)) }
// GetStringMap returns the value associated with the key as a map of interfaces.
func (l *Language) GetStringMap(key string) map[string]interface{} {
return cast.ToStringMap(l.Get(key))
}
// GetStringMapString returns the value associated with the key as a map of strings.
func (l *Language) GetStringMapString(key string) map[string]string {
return cast.ToStringMapString(l.Get(key))
}
// Get returns a value associated with the key relying on specified language.
// Get is case-insensitive for a key.
//
// Get returns an interface. For a specific value use one of the Get____ methods.
func (l *Language) Get(key string) interface{} {
if l == nil {
panic("language not set")
}
key = strings.ToLower(key)
if !globalOnlySettings[key] {
if v, ok := l.params[key]; ok {
return v
}
}
return l.Cfg.Get(key)
}
// Set sets the value for the key in the language's params.
func (l *Language) Set(key string, value interface{}) {
if l == nil {
panic("language not set")
}
key = strings.ToLower(key)
l.params[key] = value
}
// IsSet checks whether the key is set in the language or the related config store.
func (l *Language) IsSet(key string) bool {
key = strings.ToLower(key)
key = strings.ToLower(key)
if !globalOnlySettings[key] {
if _, ok := l.params[key]; ok {
return true
}
}
return l.Cfg.IsSet(key)
}