// Copyright 2023 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 (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"io/ioutil"
"net"
"net/http"
"net/url"
"os"
"sync"
"sync/atomic"
"os/signal"
"path"
"path/filepath"
"regexp"
"strconv"
"strings"
"syscall"
"time"
"github.com/bep/debounce"
"github.com/bep/simplecobra"
"github.com/fsnotify/fsnotify"
"github.com/gohugoio/hugo/common/herrors"
"github.com/gohugoio/hugo/common/hugo"
"github.com/gohugoio/hugo/common/types"
"github.com/gohugoio/hugo/common/urls"
"github.com/gohugoio/hugo/helpers"
"github.com/gohugoio/hugo/hugofs"
"github.com/gohugoio/hugo/hugofs/files"
"github.com/gohugoio/hugo/hugolib"
"github.com/gohugoio/hugo/hugolib/filesystems"
"github.com/gohugoio/hugo/livereload"
"github.com/gohugoio/hugo/tpl"
"github.com/gohugoio/hugo/transform"
"github.com/gohugoio/hugo/transform/livereloadinject"
"github.com/spf13/afero"
"github.com/spf13/cobra"
"github.com/spf13/fsync"
"golang.org/x/sync/errgroup"
"golang.org/x/sync/semaphore"
)
var (
logErrorRe = regexp.MustCompile(`(?s)ERROR \d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} `)
logDuplicateTemplateExecuteRe = regexp.MustCompile(`: template: .*?:\d+:\d+: executing ".*?"`)
logDuplicateTemplateParseRe = regexp.MustCompile(`: template: .*?:\d+:\d*`)
)
var logReplacer = strings.NewReplacer(
"can't", "can’t", // Chroma lexer doesn't do well with "can't"
"*hugolib.pageState", "page.Page", // Page is the public interface.
"Rebuild failed:", "",
)
const (
configChangeConfig = "config file"
configChangeGoMod = "go.mod file"
configChangeGoWork = "go work file"
)
func newHugoBuilder(r *rootCommand, s *serverCommand, onConfigLoaded ...func(reloaded bool) error) *hugoBuilder {
return &hugoBuilder{
r: r,
s: s,
visitedURLs: types.NewEvictingStringQueue(100),
fullRebuildSem: semaphore.NewWeighted(1),
debounce: debounce.New