ref: 506a190a82cc5564012a1228b4179637b64e58eb
dir: /hugolib/paths/paths.go/
// Copyright 2018 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 paths
import (
"fmt"
"path/filepath"
"strings"
"github.com/gohugoio/hugo/config"
"github.com/gohugoio/hugo/langs"
"github.com/gohugoio/hugo/modules"
"github.com/pkg/errors"
"github.com/gohugoio/hugo/hugofs"
)
var FilePathSeparator = string(filepath.Separator)
type Paths struct {
Fs *hugofs.Fs
Cfg config.Provider
BaseURL
// If the baseURL contains a base path, e.g. https://example.com/docs, then "/docs" will be the BasePath.
BasePath string
// Directories
// TODO(bep) when we have trimmed down mos of the dirs usage outside of this package, make
// these into an interface.
ThemesDir string
WorkingDir string
// Directories to store Resource related artifacts.
AbsResourcesDir string
AbsPublishDir string
// pagination path handling
PaginatePath string
PublishDir string
// When in multihost mode, this returns a list of base paths below PublishDir
// for each language.
MultihostTargetBasePaths []string
DisablePathToLower bool
RemovePathAccents bool
UglyURLs bool
CanonifyURLs bool
Language *langs.Language
Languages langs.Languages
LanguagesDefaultFirst langs.Languages
// The PathSpec looks up its config settings in both the current language
// and then in the global Viper config.
// Some settings, the settings listed below, does not make sense to be set
// on per-language-basis. We have no good way of protecting against this
// other than a "white-list". See language.go.
defaultContentLanguageInSubdir bool
DefaultContentLanguage string
multilingual bool
AllModules modules.Modules
ModulesClient *modules.Client
}
func New(fs *hugofs.Fs, cfg config.Provider) (*Paths, error) {
baseURLstr := cfg.GetString("baseURL")
baseURL, err := newBaseURLFromString(baseURLstr)
if err != nil {
return nil, errors.Wrapf(err, "Failed to create baseURL from %q:", baseURLstr)
}
contentDir := filepath.Clean(cfg.GetString("contentDir"))
workingDir := filepath.Clean(cfg.GetString("workingDir"))
resourceDir := filepath.Clean(cfg.GetString("resourceDir"))
publishDir := filepath.Clean(cfg.GetString("publishDir"))
if publishDir == "" {
return nil, fmt.Errorf("publishDir not set")
}
defaultContentLanguage := cfg.GetString("defaultContentLanguage")
var (
language *langs.Language
languages langs.Languages
languagesDefaultFirst langs.Languages
)
if l, ok := cfg.(*langs.Language); ok {
language = l
}
if l, ok := cfg.Get("languagesSorted").(langs.Languages); ok {
languages = l
}
if l, ok := cfg.Get("languagesSortedDefaultFirst").(langs.Languages); ok {
languagesDefaultFirst = l
}
//
if len(languages) == 0 {
// We have some old tests that does not test the entire chain, hence
// they have no languages. So create one so we get the proper filesystem.
languages = langs.Languages{&langs.Language{Lang: "en", Cfg: cfg, ContentDir: contentDir}}
}
absPublishDir := AbsPathify(workingDir, publishDir)
if !strings.HasSuffix(absPublishDir, FilePathSeparator) {
absPublishDir += FilePathSeparator
}
// If root, remove the second '/'
if absPublishDir == "//" {
absPublishDir = FilePathSeparator
}
absResourcesDir := AbsPathify(workingDir, resourceDir)
if !strings.HasSuffix(absResourcesDir, FilePathSeparator) {
absResourcesDir += FilePathSeparator
}
if absResourcesDir == "//" {
absResourcesDir = FilePathSeparator
}
var multihostTargetBasePaths []string
if languages.IsMultihost() {
for _, l := range languages {
multihostTargetBasePaths = append(multihostTargetBasePaths, l.Lang)
}
}
p := &Paths{
Fs: fs,
Cfg: cfg,
BaseURL: baseURL,
DisablePathToLower: cfg.GetBool("disablePathToLower"),
RemovePathAccents: cfg.GetBool("removePathAccents"),
UglyURLs: cfg.GetBool("uglyURLs"),
CanonifyURLs: cfg.GetBool("canonifyURLs"),
ThemesDir: cfg.GetString("themesDir"),
WorkingDir: workingDir,
AbsResourcesDir: absResourcesDir,
AbsPublishDir: absPublishDir,
multilingual: cfg.GetBool("multilingual"),
defaultContentLanguageInSubdir: cfg.GetBool("defaultContentLanguageInSubdir"),
DefaultContentLanguage: defaultContentLanguage,
Language: language,
Languages: languages,
LanguagesDefaultFirst: languagesDefaultFirst,
MultihostTargetBasePaths: multihostTargetBasePaths,
PaginatePath: cfg.GetString("paginatePath"),
}
if cfg.IsSet("allModules") {
p.AllModules = cfg.Get("allModules").(modules.Modules)
}
if cfg.IsSet("modulesClient") {
p.ModulesClient = cfg.Get("modulesClient").(*modules.Client)
}
// TODO(bep) remove this, eventually
p.PublishDir = absPublishDir
return p, nil
}
// GetBasePath returns any path element in baseURL if needed.
func (p *Paths) GetBasePath(isRelativeURL bool) string {
if isRelativeURL && p.CanonifyURLs {
// The baseURL will be prepended later.
return ""
}
return p.BasePath
}
func (p *Paths) Lang() string {
if p == nil || p.Language == nil {
return ""
}
return p.Language.Lang
}
func (p *Paths) GetTargetLanguageBasePath() string {
if p.Languages.IsMultihost() {
// In a multihost configuration all assets will be published below the language code.
return p.Lang()
}
return p.GetLanguagePrefix()
}
func (p *Paths) GetURLLanguageBasePath() string {
if p.Languages.IsMultihost() {
return ""
}
return p.GetLanguagePrefix()
}
func (p *Paths) GetLanguagePrefix() string {
if !p.multilingual {
return ""
}
defaultLang := p.DefaultContentLanguage
defaultInSubDir := p.defaultContentLanguageInSubdir
currentLang := p.Language.Lang
if currentLang == "" || (currentLang == defaultLang && !defaultInSubDir) {
return ""
}
return currentLang
}
// GetLangSubDir returns the given language's subdir if needed.
func (p *Paths) GetLangSubDir(lang string) string {
if !p.multilingual {
return ""
}
if p.Languages.IsMultihost() {
return ""
}
if lang == "" || (lang == p.DefaultContentLanguage && !p.defaultContentLanguageInSubdir) {
return ""
}
return lang
}
// AbsPathify creates an absolute path if given a relative path. If already
// absolute, the path is just cleaned.
func (p *Paths) AbsPathify(inPath string) string {
return AbsPathify(p.WorkingDir, inPath)
}
// RelPathify trims any WorkingDir prefix from the given filename. If
// the filename is not considered to be absolute, the path is just cleaned.
func (p *Paths) RelPathify(filename string) string {
filename = filepath.Clean(filename)
if !filepath.IsAbs(filename) {
return filename
}
return strings.TrimPrefix(strings.TrimPrefix(filename, p.WorkingDir), FilePathSeparator)
}
// AbsPathify creates an absolute path if given a working dir and arelative path.
// If already absolute, the path is just cleaned.
func AbsPathify(workingDir, inPath string) string {
if filepath.IsAbs(inPath) {
return filepath.Clean(inPath)
}
return filepath.Join(workingDir, inPath)
}