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// 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 commands
import (
"os"
"path/filepath"
"sync"
"time"
"github.com/gohugoio/hugo/config"
"github.com/spf13/cobra"
"github.com/gohugoio/hugo/utils"
"github.com/spf13/afero"
"github.com/gohugoio/hugo/hugolib"
"github.com/bep/debounce"
"github.com/gohugoio/hugo/common/types"
"github.com/gohugoio/hugo/deps"
"github.com/gohugoio/hugo/helpers"
"github.com/gohugoio/hugo/hugofs"
src "github.com/gohugoio/hugo/source"
)
type commandeer struct {
*deps.DepsCfg
hugo *hugolib.HugoSites
h *hugoBuilderCommon
ftch flagsToConfigHandler
pathSpec *helpers.PathSpec
visitedURLs *types.EvictingStringQueue
staticDirsConfig []*src.Dirs
// We watch these for changes.
configFiles []string
doWithCommandeer func(c *commandeer) error
// We can do this only once.
fsCreate sync.Once
// Used in cases where we get flooded with events in server mode.
debounce func(f func())
serverPorts []int
languagesConfigured bool
languages helpers.Languages
configured bool
}
func (c *commandeer) Set(key string, value interface{}) {
if c.configured {
panic("commandeer cannot be changed")
}
c.Cfg.Set(key, value)
}
// PathSpec lazily creates a new PathSpec, as all the paths must
// be configured before it is created.
func (c *commandeer) PathSpec() *helpers.PathSpec {
c.configured = true
return c.pathSpec
}
func (c *commandeer) initFs(fs *hugofs.Fs) error {
c.DepsCfg.Fs = fs
ps, err := helpers.NewPathSpec(fs, c.Cfg)
if err != nil {
return err
}
c.pathSpec = ps
dirsConfig, err := c.createStaticDirsConfig()
if err != nil {
return err
}
c.staticDirsConfig = dirsConfig
return nil
}
func newCommandeer(running bool, h *hugoBuilderCommon, f flagsToConfigHandler, doWithCommandeer func(c *commandeer) error, subCmdVs ...*cobra.Command) (*commandeer, error) {
var rebuildDebouncer func(f func())
if running {
// The time value used is tested with mass content replacements in a fairly big Hugo site.
// It is better to wait for some seconds in those cases rather than get flooded
// with rebuilds.
rebuildDebouncer, _, _ = debounce.New(4 * time.Second)
}
c := &commandeer{
h: h,
ftch: f,
doWithCommandeer: doWithCommandeer,
visitedURLs: types.NewEvictingStringQueue(10),
debounce: rebuildDebouncer,
}
return c, c.loadConfig(running)
}
func (c *commandeer) loadConfig(running bool) error {
if c.DepsCfg == nil {
c.DepsCfg = &deps.DepsCfg{}
}
cfg := c.DepsCfg
c.configured = false
cfg.Running = running
var dir string
if c.h.source != "" {
dir, _ = filepath.Abs(c.h.source)
} else {
dir, _ = os.Getwd()
}
var sourceFs afero.Fs = hugofs.Os
if c.DepsCfg.Fs != nil {
sourceFs = c.DepsCfg.Fs.Source
}
doWithConfig := func(cfg config.Provider) error {
if c.ftch != nil {
c.ftch.flagsToConfig(cfg)
}
cfg.Set("workingDir", dir)
return nil
}
doWithCommandeer := func(cfg config.Provider) error {
c.Cfg = cfg
if c.doWithCommandeer == nil {
return nil
}
err := c.doWithCommandeer(c)
return err
}
config, configFiles, err := hugolib.LoadConfig(
hugolib.ConfigSourceDescriptor{Fs: sourceFs, Path: c.h.source, WorkingDir: dir, Filename: c.h.cfgFile},
doWithCommandeer,
doWithConfig)
if err != nil {
return err
}
c.configFiles = configFiles
if l, ok := c.Cfg.Get("languagesSorted").(helpers.Languages); ok {
c.languagesConfigured = true
c.languages = l
}
// This is potentially double work, but we need to do this one more time now
// that all the languages have been configured.
if c.doWithCommandeer != nil {
if err := c.doWithCommandeer(c); err != nil {
return err
}
}
logger, err := c.createLogger(config)
if err != nil {
return err
}
cfg.Logger = logger
createMemFs := config.GetBool("renderToMemory")
if createMemFs {
// Rendering to memoryFS, publish to Root regardless of publishDir.
config.Set("publishDir", "/")
}
c.fsCreate.Do(func() {
fs := hugofs.NewFrom(sourceFs, config)
// Hugo writes the output to memory instead of the disk.
if createMemFs {
fs.Destination = new(afero.MemMapFs)
}
err = c.initFs(fs)
})
if err != nil {
return err
}
cacheDir := config.GetString("cacheDir")
if cacheDir != "" {
if helpers.FilePathSeparator != cacheDir[len(cacheDir)-1:] {
cacheDir = cacheDir + helpers.FilePathSeparator
}
isDir, err := helpers.DirExists(cacheDir, sourceFs)
utils.CheckErr(cfg.Logger, err)
if !isDir {
mkdir(cacheDir)
}
config.Set("cacheDir", cacheDir)
} else {
config.Set("cacheDir", helpers.GetTempDir("hugo_cache", sourceFs))
}
cfg.Logger.INFO.Println("Using config file:", config.ConfigFileUsed())
themeDir := c.PathSpec().GetThemeDir()
if themeDir != "" {
if _, err := sourceFs.Stat(themeDir); os.IsNotExist(err) {
return newSystemError("Unable to find theme Directory:", themeDir)
}
}
themeVersionMismatch, minVersion :=
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