hugo/hugolib/config.go
2021-03-21 13:29:11 +01:00

655 lines
17 KiB
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 (
"os"
"path/filepath"
"strings"
"github.com/gohugoio/hugo/common/types"
"github.com/gohugoio/hugo/common/maps"
"github.com/gobwas/glob"
hglob "github.com/gohugoio/hugo/hugofs/glob"
"github.com/gohugoio/hugo/common/loggers"
"github.com/gohugoio/hugo/cache/filecache"
"github.com/gohugoio/hugo/parser/metadecoders"
"github.com/gohugoio/hugo/common/herrors"
"github.com/gohugoio/hugo/common/hugo"
"github.com/gohugoio/hugo/hugolib/paths"
"github.com/gohugoio/hugo/langs"
"github.com/gohugoio/hugo/modules"
"github.com/pkg/errors"
"github.com/gohugoio/hugo/config"
"github.com/gohugoio/hugo/config/privacy"
"github.com/gohugoio/hugo/config/services"
"github.com/gohugoio/hugo/helpers"
"github.com/spf13/afero"
"github.com/spf13/viper"
)
// SiteConfig represents the config in .Site.Config.
type SiteConfig struct {
// This contains all privacy related settings that can be used to
// make the YouTube template etc. GDPR compliant.
Privacy privacy.Config
// Services contains config for services such as Google Analytics etc.
Services services.Config
}
func loadSiteConfig(cfg config.Provider) (scfg SiteConfig, err error) {
privacyConfig, err := privacy.DecodeConfig(cfg)
if err != nil {
return
}
servicesConfig, err := services.DecodeConfig(cfg)
if err != nil {
return
}
scfg.Privacy = privacyConfig
scfg.Services = servicesConfig
return
}
// ConfigSourceDescriptor describes where to find the config (e.g. config.toml etc.).
type ConfigSourceDescriptor struct {
Fs afero.Fs
Logger loggers.Logger
// Path to the config file to use, e.g. /my/project/config.toml
Filename string
// The path to the directory to look for configuration. Is used if Filename is not
// set or if it is set to a relative filename.
Path string
// The project's working dir. Is used to look for additional theme config.
WorkingDir string
// The (optional) directory for additional configuration files.
AbsConfigDir string
// production, development
Environment string
// Defaults to os.Environ if not set.
Environ []string
}
func (d ConfigSourceDescriptor) configFilenames() []string {
if d.Filename == "" {
return []string{"config"}
}
return strings.Split(d.Filename, ",")
}
func (d ConfigSourceDescriptor) configFileDir() string {
if d.Path != "" {
return d.Path
}
return d.WorkingDir
}
// LoadConfigDefault is a convenience method to load the default "config.toml" config.
func LoadConfigDefault(fs afero.Fs) (*viper.Viper, error) {
v, _, err := LoadConfig(ConfigSourceDescriptor{Fs: fs, Filename: "config.toml"})
return v, err
}
var ErrNoConfigFile = errors.New("Unable to locate config file or config directory. Perhaps you need to create a new site.\n Run `hugo help new` for details.\n")
// LoadConfig loads Hugo configuration into a new Viper and then adds
// a set of defaults.
func LoadConfig(d ConfigSourceDescriptor, doWithConfig ...func(cfg config.Provider) error) (*viper.Viper, []string, error) {
if d.Environment == "" {
d.Environment = hugo.EnvironmentProduction
}
if len(d.Environ) == 0 {
d.Environ = os.Environ()
}
var configFiles []string
v := viper.New()
l := configLoader{ConfigSourceDescriptor: d}
for _, name := range d.configFilenames() {
var filename string
filename, err := l.loadConfig(name, v)
if err == nil {
configFiles = append(configFiles, filename)
} else if err != ErrNoConfigFile {
return nil, nil, err
}
}
if d.AbsConfigDir != "" {
dirnames, err := l.loadConfigFromConfigDir(v)
if err == nil {
configFiles = append(configFiles, dirnames...)
} else if err != ErrNoConfigFile {
return nil, nil, err
}
}
if err := loadDefaultSettingsFor(v); err != nil {
return v, configFiles, err
}
// We create languages based on the settings, so we need to make sure that
// all configuration is loaded/set before doing that.
for _, d := range doWithConfig {
if err := d(v); err != nil {
return v, configFiles, err
}
}
// This is invoked both after we load the main config and at the end
// to support OS env override of config options used in the module collector.
applyOsEnvOverrides := func() error {
if d.Environ == nil {
return nil
}
const delim = "__env__delim"
// Extract all that start with the HUGO prefix.
// The delimiter is the following rune, usually "_".
const hugoEnvPrefix = "HUGO"
var hugoEnv []types.KeyValueStr
for _, v := range d.Environ {
key, val := config.SplitEnvVar(v)
if strings.HasPrefix(key, hugoEnvPrefix) {
delimiterAndKey := strings.TrimPrefix(key, hugoEnvPrefix)
if len(delimiterAndKey) < 2 {
continue
}
// Allow delimiters to be case sensitive.
// It turns out there isn't that many allowed special
// chars in environment variables when used in Bash and similar,
// so variables on the form HUGOxPARAMSxFOO=bar is one option.
key := strings.ReplaceAll(delimiterAndKey[1:], delimiterAndKey[:1], delim)
key = strings.ToLower(key)
hugoEnv = append(hugoEnv, types.KeyValueStr{
Key: key,
Value: val,
})
}
}
for _, env := range hugoEnv {
existing, nestedKey, owner, err := maps.GetNestedParamFn(env.Key, delim, v.Get)
if err != nil {
return err
}
if existing != nil {
val, err := metadecoders.Default.UnmarshalStringTo(env.Value, existing)
if err != nil {
continue
}
if owner != nil {
owner[nestedKey] = val
} else {
v.Set(env.Key, val)
}
} else if nestedKey != "" {
owner[nestedKey] = env.Value
} else {
v.Set(env.Key, env.Value)
}
}
return nil
}
if err := applyOsEnvOverrides(); err != nil {
return v, configFiles, err
}
// We made this a Glob pattern in Hugo 0.75, we don't need both.
if v.GetBool("ignoreVendor") {
helpers.Deprecated("--ignoreVendor", "--ignoreVendorPaths **", false)
v.Set("ignoreVendorPaths", "**")
}
modulesConfig, err := l.loadModulesConfig(v)
if err != nil {
return v, configFiles, err
}
// Need to run these after the modules are loaded, but before
// they are finalized.
collectHook := func(m *modules.ModulesConfig) error {
if err := loadLanguageSettings(v, nil); err != nil {
return err
}
mods := m.ActiveModules
// Apply default project mounts.
if err := modules.ApplyProjectConfigDefaults(v, mods[0]); err != nil {
return err
}
return nil
}
_, modulesConfigFiles, err := l.collectModules(modulesConfig, v, collectHook)
if err == nil && len(modulesConfigFiles) > 0 {
configFiles = append(configFiles, modulesConfigFiles...)
}
if err := applyOsEnvOverrides(); err != nil {
return v, configFiles, err
}
return v, configFiles, err
}
func loadLanguageSettings(cfg config.Provider, oldLangs langs.Languages) error {
_, err := langs.LoadLanguageSettings(cfg, oldLangs)
return err
}
type configLoader struct {
ConfigSourceDescriptor
}
func (l configLoader) loadConfig(configName string, v *viper.Viper) (string, error) {
baseDir := l.configFileDir()
var baseFilename string
if filepath.IsAbs(configName) {
baseFilename = configName
} else {
baseFilename = filepath.Join(baseDir, configName)
}
var filename string
if helpers.ExtNoDelimiter(configName) != "" {
exists, _ := helpers.Exists(baseFilename, l.Fs)
if exists {
filename = baseFilename
}
} else {
for _, ext := range config.ValidConfigFileExtensions {
filenameToCheck := baseFilename + "." + ext
exists, _ := helpers.Exists(filenameToCheck, l.Fs)
if exists {
filename = filenameToCheck
break
}
}
}
if filename == "" {
return "", ErrNoConfigFile
}
m, err := config.FromFileToMap(l.Fs, filename)
if err != nil {
return "", l.wrapFileError(err, filename)
}
if err = v.MergeConfigMap(m); err != nil {
return "", l.wrapFileError(err, filename)
}
return filename, nil
}
func (l configLoader) wrapFileError(err error, filename string) error {
err, _ = herrors.WithFileContextForFile(
err,
filename,
filename,
l.Fs,
herrors.SimpleLineMatcher)
return err
}
func (l configLoader) loadConfigFromConfigDir(v *viper.Viper) ([]string, error) {
sourceFs := l.Fs
configDir := l.AbsConfigDir
if _, err := sourceFs.Stat(configDir); err != nil {
// Config dir does not exist.
return nil, nil
}
defaultConfigDir := filepath.Join(configDir, "_default")
environmentConfigDir := filepath.Join(configDir, l.Environment)
var configDirs []string
// Merge from least to most specific.
for _, dir := range []string{defaultConfigDir, environmentConfigDir} {
if _, err := sourceFs.Stat(dir); err == nil {
configDirs = append(configDirs, dir)
}
}
if len(configDirs) == 0 {
return nil, nil
}
// Keep track of these so we can watch them for changes.
var dirnames []string
for _, configDir := range configDirs {
err := afero.Walk(sourceFs, configDir, func(path string, fi os.FileInfo, err error) error {
if fi == nil || err != nil {
return nil
}
if fi.IsDir() {
dirnames = append(dirnames, path)
return nil
}
if !config.IsValidConfigFilename(path) {
return nil
}
name := helpers.Filename(filepath.Base(path))
item, err := metadecoders.Default.UnmarshalFileToMap(sourceFs, path)
if err != nil {
return l.wrapFileError(err, path)
}
var keyPath []string
if name != "config" {
// Can be params.jp, menus.en etc.
name, lang := helpers.FileAndExtNoDelimiter(name)
keyPath = []string{name}
if lang != "" {
keyPath = []string{"languages", lang}
switch name {
case "menu", "menus":
keyPath = append(keyPath, "menus")
case "params":
keyPath = append(keyPath, "params")
}
}
}
root := item
if len(keyPath) > 0 {
root = make(map[string]interface{})
m := root
for i, key := range keyPath {
if i >= len(keyPath)-1 {
m[key] = item
} else {
nm := make(map[string]interface{})
m[key] = nm
m = nm
}
}
}
// Migrate menu => menus etc.
config.RenameKeys(root)
if err := v.MergeConfigMap(root); err != nil {
return l.wrapFileError(err, path)
}
return nil
})
if err != nil {
return nil, err
}
}
return dirnames, nil
}
func (l configLoader) loadModulesConfig(v1 *viper.Viper) (modules.Config, error) {
modConfig, err := modules.DecodeConfig(v1)
if err != nil {
return modules.Config{}, err
}
return modConfig, nil
}
func (l configLoader) collectModules(modConfig modules.Config, v1 *viper.Viper, hookBeforeFinalize func(m *modules.ModulesConfig) error) (modules.Modules, []string, error) {
workingDir := l.WorkingDir
if workingDir == "" {
workingDir = v1.GetString("workingDir")
}
themesDir := paths.AbsPathify(l.WorkingDir, v1.GetString("themesDir"))
var ignoreVendor glob.Glob
if s := v1.GetString("ignoreVendorPaths"); s != "" {
ignoreVendor, _ = hglob.GetGlob(hglob.NormalizePath(s))
}
filecacheConfigs, err := filecache.DecodeConfig(l.Fs, v1)
if err != nil {
return nil, nil, err
}
v1.Set("filecacheConfigs", filecacheConfigs)
var configFilenames []string
hook := func(m *modules.ModulesConfig) error {
for _, tc := range m.ActiveModules {
if tc.ConfigFilename() != "" {
if tc.Watch() {
configFilenames = append(configFilenames, tc.ConfigFilename())
}
if err := l.applyThemeConfig(v1, tc); err != nil {
return err
}
}
}
if hookBeforeFinalize != nil {
return hookBeforeFinalize(m)
}
return nil
}
modulesClient := modules.NewClient(modules.ClientConfig{
Fs: l.Fs,
Logger: l.Logger,
HookBeforeFinalize: hook,
WorkingDir: workingDir,
ThemesDir: themesDir,
CacheDir: filecacheConfigs.CacheDirModules(),
ModuleConfig: modConfig,
IgnoreVendor: ignoreVendor,
})
v1.Set("modulesClient", modulesClient)
moduleConfig, err := modulesClient.Collect()
// Avoid recreating these later.
v1.Set("allModules", moduleConfig.ActiveModules)
if moduleConfig.GoModulesFilename != "" {
// We want to watch this for changes and trigger rebuild on version
// changes etc.
configFilenames = append(configFilenames, moduleConfig.GoModulesFilename)
}
return moduleConfig.ActiveModules, configFilenames, err
}
func (l configLoader) applyThemeConfig(v1 *viper.Viper, theme modules.Module) error {
const (
paramsKey = "params"
languagesKey = "languages"
menuKey = "menus"
)
v2 := theme.Cfg()
for _, key := range []string{paramsKey, "outputformats", "mediatypes"} {
l.mergeStringMapKeepLeft("", key, v1, v2)
}
// Only add params and new menu entries, we do not add language definitions.
if v1.IsSet(languagesKey) && v2.IsSet(languagesKey) {
v1Langs := v1.GetStringMap(languagesKey)
for k := range v1Langs {
langParamsKey := languagesKey + "." + k + "." + paramsKey
l.mergeStringMapKeepLeft(paramsKey, langParamsKey, v1, v2)
}
v2Langs := v2.GetStringMap(languagesKey)
for k := range v2Langs {
if k == "" {
continue
}
langMenuKey := languagesKey + "." + k + "." + menuKey
if v2.IsSet(langMenuKey) {
// Only add if not in the main config.
v2menus := v2.GetStringMap(langMenuKey)
for k, v := range v2menus {
menuEntry := menuKey + "." + k
menuLangEntry := langMenuKey + "." + k
if !v1.IsSet(menuEntry) && !v1.IsSet(menuLangEntry) {
v1.Set(menuLangEntry, v)
}
}
}
}
}
// Add menu definitions from theme not found in project
if v2.IsSet(menuKey) {
v2menus := v2.GetStringMap(menuKey)
for k, v := range v2menus {
menuEntry := menuKey + "." + k
if !v1.IsSet(menuEntry) {
v1.SetDefault(menuEntry, v)
}
}
}
return nil
}
func (configLoader) mergeStringMapKeepLeft(rootKey, key string, v1, v2 config.Provider) {
if !v2.IsSet(key) {
return
}
if !v1.IsSet(key) && !(rootKey != "" && rootKey != key && v1.IsSet(rootKey)) {
v1.Set(key, v2.Get(key))
return
}
m1 := v1.GetStringMap(key)
m2 := v2.GetStringMap(key)
for k, v := range m2 {
if _, found := m1[k]; !found {
if rootKey != "" && v1.IsSet(rootKey+"."+k) {
continue
}
m1[k] = v
}
}
}
func loadDefaultSettingsFor(v *viper.Viper) error {
v.RegisterAlias("indexes", "taxonomies")
/*
TODO(bep) from 0.56 these are configured as module mounts.
v.SetDefault("contentDir", "content")
v.SetDefault("layoutDir", "layouts")
v.SetDefault("assetDir", "assets")
v.SetDefault("staticDir", "static")
v.SetDefault("dataDir", "data")
v.SetDefault("i18nDir", "i18n")
v.SetDefault("archetypeDir", "archetypes")
*/
v.SetDefault("cleanDestinationDir", false)
v.SetDefault("watch", false)
v.SetDefault("resourceDir", "resources")
v.SetDefault("publishDir", "public")
v.SetDefault("themesDir", "themes")
v.SetDefault("buildDrafts", false)
v.SetDefault("buildFuture", false)
v.SetDefault("buildExpired", false)
v.SetDefault("environment", hugo.EnvironmentProduction)
v.SetDefault("uglyURLs", false)
v.SetDefault("verbose", false)
v.SetDefault("ignoreCache", false)
v.SetDefault("canonifyURLs", false)
v.SetDefault("relativeURLs", false)
v.SetDefault("removePathAccents", false)
v.SetDefault("titleCaseStyle", "AP")
v.SetDefault("taxonomies", map[string]string{"tag": "tags", "category": "categories"})
v.SetDefault("permalinks", make(map[string]string))
v.SetDefault("sitemap", config.Sitemap{Priority: -1, Filename: "sitemap.xml"})
v.SetDefault("disableLiveReload", false)
v.SetDefault("pluralizeListTitles", true)
v.SetDefault("forceSyncStatic", false)
v.SetDefault("footnoteAnchorPrefix", "")
v.SetDefault("footnoteReturnLinkContents", "")
v.SetDefault("newContentEditor", "")
v.SetDefault("paginate", 10)
v.SetDefault("paginatePath", "page")
v.SetDefault("summaryLength", 70)
v.SetDefault("rssLimit", -1)
v.SetDefault("sectionPagesMenu", "")
v.SetDefault("disablePathToLower", false)
v.SetDefault("hasCJKLanguage", false)
v.SetDefault("enableEmoji", false)
v.SetDefault("pygmentsCodeFencesGuessSyntax", false)
v.SetDefault("defaultContentLanguage", "en")
v.SetDefault("defaultContentLanguageInSubdir", false)
v.SetDefault("enableMissingTranslationPlaceholders", false)
v.SetDefault("enableGitInfo", false)
v.SetDefault("ignoreFiles", make([]string, 0))
v.SetDefault("disableAliases", false)
v.SetDefault("debug", false)
v.SetDefault("disableFastRender", false)
v.SetDefault("timeout", "30s")
v.SetDefault("enableInlineShortcodes", false)
return nil
}