// 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 (
"bytes"
"context"
"fmt"
"html/template"
"runtime/debug"
"strings"
"sync"
"unicode/utf8"
"errors"
"github.com/gohugoio/hugo/common/text"
"github.com/gohugoio/hugo/common/types/hstring"
"github.com/gohugoio/hugo/identity"
"github.com/gohugoio/hugo/parser/pageparser"
"github.com/mitchellh/mapstructure"
"github.com/spf13/cast"
"github.com/gohugoio/hugo/markup/converter/hooks"
"github.com/gohugoio/hugo/markup/highlight/chromalexers"
"github.com/gohugoio/hugo/markup/converter"
"github.com/gohugoio/hugo/lazy"
bp "github.com/gohugoio/hugo/bufferpool"
"github.com/gohugoio/hugo/tpl"
"github.com/gohugoio/hugo/helpers"
"github.com/gohugoio/hugo/output"
"github.com/gohugoio/hugo/resources/page"
"github.com/gohugoio/hugo/resources/resource"
)
var (
nopTargetPath = targetPathsHolder{}
nopPagePerOutput = struct {
resource.ResourceLinksProvider
page.ContentProvider
page.PageRenderProvider
page.PaginatorProvider
page.TableOfContentsProvider
page.AlternativeOutputFormatsProvider
targetPather
}{
page.NopPage,
page.NopPage,
page.NopPage,
page.NopPage,
page.NopPage,
page.NopPage,
nopTargetPath,
}
)
var pageContentOutputDependenciesID = identity.KeyValueIdentity{Key: "pageOutput", Value: "dependencies"}
func newPageContentOutput(p *pageState, po *pageOutput) (*pageContentOutput, error) {
parent := p.init
var dependencyTracker identity.Manager
if p.s.running() {
dependencyTracker = identity.NewManager(pageContentOutputDependenciesID)
}
cp := &pageContentOutput{
dependencyTracker: dependencyTracker,
p: p,
f: po.f,
renderHooks: &renderHooks{},
}
initContent := func() (err error) {
p.s.h.IncrContentRender()
if p.cmap == nil {
// Nothing to do.
return nil
}
defer func() {
// See https://github.com/gohugoio/hugo/issues/6210
if r := recover(); r != nil {
err = fmt.Errorf("%s", r)
p.s.Log.Errorf("[BUG] Got panic:\n%s\n%s", r, string(debug.Stack()))
}
}()
if err := po.cp.initRenderHooks(); err != nil {
return err
}
var hasShortcodeVariants bool
f := po.f
cp.contentPlaceholders, hasShortcodeVariants, err = p.shortcodeState.renderShortcodesForPage(p, f)
if err != nil {
return err
}
if hasShortcodeVariants {
p.pageOutputTemplateVariationsState.Store(2)
}
cp.workContent = p.contentToRender(p.source.parsed, p.cmap, cp.contentPlaceholders)
isHTML := cp.p.m.markup == "html"
if !isHTML {
r, err := po.contentRenderer.RenderContent(cp.workContent, true)
if err != nil {
return err
}
cp.workContent = r.Bytes()
if tocProvider, ok := r.(converter.TableOfContentsProvider); ok {
cfg := p.s.ContentSpec.Converters.GetMarkupConfig()
cp.tableOfContents = template.HTML(
tocProvider.TableOfContents().ToHTML(
cfg.TableOfContents.StartLevel,
cfg.TableOfContents.EndLevel,
cfg.TableOfContents.Ordered,
),
)
} else {
tmpContent, tmpTableOfContents := helpers.ExtractTOC(cp.workContent)
cp.tableOfContents = helpers.BytesToHTML(tmpTableOfContents)
cp.workContent = tmpContent
}