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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 commands
import (
"errors"
"fmt"
"io/ioutil"
"net"
"os"
"path/filepath"
"regexp"
"sync"
"time"
hconfig "github.com/gohugoio/hugo/config"
"golang.org/x/sync/semaphore"
"github.com/gohugoio/hugo/common/herrors"
"github.com/gohugoio/hugo/common/htime"
"github.com/gohugoio/hugo/common/hugo"
"github.com/gohugoio/hugo/common/paths"
"github.com/spf13/cast"
jww "github.com/spf13/jwalterweatherman"
"github.com/gohugoio/hugo/common/loggers"
"github.com/gohugoio/hugo/config"
"github.com/spf13/cobra"
"github.com/gohugoio/hugo/hugolib"
"github.com/spf13/afero"
"github.com/bep/clock"
"github.com/bep/debounce"
"github.com/bep/overlayfs"
"github.com/gohugoio/hugo/common/types"
"github.com/gohugoio/hugo/deps"
"github.com/gohugoio/hugo/helpers"
"github.com/gohugoio/hugo/hugofs"
"github.com/gohugoio/hugo/langs"
)
type commandeerHugoState struct {
*deps.DepsCfg
hugoSites *hugolib.HugoSites
fsCreate sync.Once
created chan struct{}
}
type commandeer struct {
*commandeerHugoState
logger loggers.Logger
serverConfig *config.Server
buildLock func() (unlock func(), err error)
// Loading state
mustHaveConfigFile bool
failOnInitErr bool
running bool
// Currently only set when in "fast render mode". But it seems to
// be fast enough that we could maybe just add it for all server modes.
changeDetector *fileChangeDetector
// We need to reuse these on server rebuilds.
publishDirFs afero.Fs
publishDirStaticFs afero.Fs
publishDirServerFs afero.Fs
h *hugoBuilderCommon
ftch flagsToConfigHandler
visitedURLs *types.EvictingStringQueue
cfgInit func(c *commandeer) error
// We watch these for changes.
configFiles []string
// Used in cases where we get flooded with events in server mode.
debounce func(f func())
serverPorts []serverPortListener
languages langs.Languages
doLiveReload bool
renderStaticToDisk bool
fastRenderMode bool
showErrorInBrowser bool
wasError bool
configured bool
paused bool
fullRebuildSem *semaphore.Weighted
// Any error from the last build.
buildErr error
}
type serverPortListener struct {
p int
ln net.Listener
}
func newCommandeerHugoState() *commandeerHugoState {
return &commandeerHugoState{
created: make(chan struct{}),
}
}
func (c *commandeerHugoState) hugo() *hugolib.HugoSites {
<-c.created
return c.hugoSites
}
func (c *commandeerHugoState) hugoTry() *hugolib.HugoSites {
select {
case <-c.created:
return c.hugoSites
case <-time.After(time.Millisecond * 100):
return nil
}
}
func (c *commandeer) errCount() int {
return int(c.logger.LogCounters().ErrorCounter.Count())
}
func (c *commandeer) getErrorWithContext() any {
errCount := c.errCount()
if errCount == 0 {
return nil
}
m := make(map[string]any)
//xwm["Error"] = errors.New(cleanErrorLog(removeErrorPrefixFromLog(c.logger.Errors())))
m["Error"] = errors.New(cleanErrorLog(removeErrorPrefixFromLog(c.logger.Errors())))
m["Version"] = hugo.BuildVersionString()
ferrors := herrors.UnwrapFileErrorsWithErrorContext(c.buildErr)
m["Files"] = ferrors
return m
}
func (c *commandeer) Set(key string, value any) {
if c.configured {
panic("commandeer cannot be changed")
}
c.Cfg.Set(key, value)
}
func (c *commandeer) initFs(fs *hugofs.Fs) error {
c.publishDirFs = fs.PublishDir
c.publishDirStaticFs = fs.PublishDirStatic
c.publishDirServerFs = fs.PublishDirServer
c.DepsCfg.Fs = fs
return nil
}
func (c *commandeer) initClock(loc *time.Location) error {
bt := c.Cfg.GetString("clock")
if bt == "" {
return nil
}
t, err := cast.StringToDateInDefaultLocation(bt, loc)
if err != nil {
return fmt.Errorf(`failed to parse "clock" flag: %s`, err)
}
htime.Clock = clock.Start(t)
return nil
}
func newCommandeer(mustHaveConfigFile, failOnInitErr, running bool, h *hugoBuilderCommon, f flagsToConfigHandler, cfgInit 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)
}
out := ioutil.Discard
if !h.quiet {
out = os.Stdout
}
c := &commandeer{
h: h,
ftch: f,
commandeerHugoState: newCommandeerHugoState(),
cfgInit: cfgInit,
visitedURLs: types.NewEvictingStringQueue(10),
debounce: rebuildDebouncer,
fullRebuildSem: semaphore.NewWeighted(1),
// Init state
mustHaveConfigFile: mustHaveConfigFile,
failOnInitErr: failOnInitErr,
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