hugo/hugolib/page__meta.go
Bjørn Erik Pedersen 7be7f89bf6 Fix rebuilds on cascade deletes/renames
And also avoid reading sub directories on simple changes to branch `_index.md` files.

Fixes #12449
2024-05-01 17:18:30 +02:00

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// Copyright 2024 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 (
"context"
"fmt"
"path/filepath"
"regexp"
"strings"
"time"
"github.com/gobuffalo/flect"
"github.com/gohugoio/hugo/identity"
"github.com/gohugoio/hugo/langs"
"github.com/gohugoio/hugo/markup/converter"
xmaps "golang.org/x/exp/maps"
"github.com/gohugoio/hugo/related"
"github.com/gohugoio/hugo/source"
"github.com/gohugoio/hugo/common/constants"
"github.com/gohugoio/hugo/common/hugo"
"github.com/gohugoio/hugo/common/loggers"
"github.com/gohugoio/hugo/common/maps"
"github.com/gohugoio/hugo/common/paths"
"github.com/gohugoio/hugo/config"
"github.com/gohugoio/hugo/helpers"
"github.com/gohugoio/hugo/output"
"github.com/gohugoio/hugo/resources/kinds"
"github.com/gohugoio/hugo/resources/page"
"github.com/gohugoio/hugo/resources/page/pagemeta"
"github.com/gohugoio/hugo/resources/resource"
"github.com/spf13/cast"
)
var cjkRe = regexp.MustCompile(`\p{Han}|\p{Hangul}|\p{Hiragana}|\p{Katakana}`)
type pageMeta struct {
term string // Set for kind == KindTerm.
singular string // Set for kind == KindTerm and kind == KindTaxonomy.
resource.Staler
pageMetaParams
pageMetaFrontMatter
// Set for standalone pages, e.g. robotsTXT.
standaloneOutputFormat output.Format
resourcePath string // Set for bundled pages; path relative to its bundle root.
bundled bool // Set if this page is bundled inside another.
pathInfo *paths.Path // Always set. This the canonical path to the Page.
f *source.File
content *cachedContent // The source and the parsed page content.
s *Site // The site this page belongs to.
}
// Prepare for a rebuild of the data passed in from front matter.
func (m *pageMeta) setMetaPostPrepareRebuild() {
params := xmaps.Clone[map[string]any](m.paramsOriginal)
m.pageMetaParams.pageConfig = &pagemeta.PageConfig{
Params: params,
}
m.pageMetaFrontMatter = pageMetaFrontMatter{}
}
type pageMetaParams struct {
setMetaPostCount int
setMetaPostCascadeChanged bool
pageConfig *pagemeta.PageConfig
// These are only set in watch mode.
datesOriginal pagemeta.Dates
paramsOriginal map[string]any // contains the original params as defined in the front matter.
cascadeOriginal map[page.PageMatcher]maps.Params // contains the original cascade as defined in the front matter.
}
// From page front matter.
type pageMetaFrontMatter struct {
configuredOutputFormats output.Formats // outputs defined in front matter.
}
func (m *pageMetaParams) init(preserveOringal bool) {
if preserveOringal {
m.paramsOriginal = xmaps.Clone[maps.Params](m.pageConfig.Params)
m.cascadeOriginal = xmaps.Clone[map[page.PageMatcher]maps.Params](m.pageConfig.Cascade)
}
}
func (p *pageMeta) Aliases() []string {
return p.pageConfig.Aliases
}
// Deprecated: Use taxonomies instead.
func (p *pageMeta) Author() page.Author {
hugo.Deprecate(".Page.Author", "Use taxonomies instead.", "v0.98.0")
authors := p.Authors()
for _, author := range authors {
return author
}
return page.Author{}
}
// Deprecated: Use taxonomies instead.
func (p *pageMeta) Authors() page.AuthorList {
hugo.Deprecate(".Page.Authors", "Use taxonomies instead.", "v0.112.0")
return nil
}
func (p *pageMeta) BundleType() string {
switch p.pathInfo.BundleType() {
case paths.PathTypeLeaf:
return "leaf"
case paths.PathTypeBranch:
return "branch"
default:
return ""
}
}
func (p *pageMeta) Date() time.Time {
return p.pageConfig.Date
}
func (p *pageMeta) PublishDate() time.Time {
return p.pageConfig.PublishDate
}
func (p *pageMeta) Lastmod() time.Time {
return p.pageConfig.Lastmod
}
func (p *pageMeta) ExpiryDate() time.Time {
return p.pageConfig.ExpiryDate
}
func (p *pageMeta) Description() string {
return p.pageConfig.Description
}
func (p *pageMeta) Lang() string {
return p.s.Lang()
}
func (p *pageMeta) Draft() bool {
return p.pageConfig.Draft
}
func (p *pageMeta) File() *source.File {
return p.f
}
func (p *pageMeta) IsHome() bool {
return p.Kind() == kinds.KindHome
}
func (p *pageMeta) Keywords() []string {
return p.pageConfig.Keywords
}
func (p *pageMeta) Kind() string {
return p.pageConfig.Kind
}
func (p *pageMeta) Layout() string {
return p.pageConfig.Layout
}
func (p *pageMeta) LinkTitle() string {
if p.pageConfig.LinkTitle != "" {
return p.pageConfig.LinkTitle
}
return p.Title()
}
func (p *pageMeta) Name() string {
if p.resourcePath != "" {
return p.resourcePath
}
if p.pageConfig.Kind == kinds.KindTerm {
return p.pathInfo.Unnormalized().BaseNameNoIdentifier()
}
return p.Title()
}
func (p *pageMeta) IsNode() bool {
return !p.IsPage()
}
func (p *pageMeta) IsPage() bool {
return p.Kind() == kinds.KindPage
}
// Param is a convenience method to do lookups in Page's and Site's Params map,
// in that order.
//
// This method is also implemented on SiteInfo.
// TODO(bep) interface
func (p *pageMeta) Param(key any) (any, error) {
return resource.Param(p, p.s.Params(), key)
}
func (p *pageMeta) Params() maps.Params {
return p.pageConfig.Params
}
func (p *pageMeta) Path() string {
return p.pathInfo.Base()
}
func (p *pageMeta) PathInfo() *paths.Path {
return p.pathInfo
}
// RelatedKeywords implements the related.Document interface needed for fast page searches.
func (p *pageMeta) RelatedKeywords(cfg related.IndexConfig) ([]related.Keyword, error) {
v, err := p.Param(cfg.Name)
if err != nil {
return nil, err
}
return cfg.ToKeywords(v)
}
func (p *pageMeta) IsSection() bool {
return p.Kind() == kinds.KindSection
}
func (p *pageMeta) Section() string {
return p.pathInfo.Section()
}
func (p *pageMeta) Sitemap() config.SitemapConfig {
return p.pageConfig.Sitemap
}
func (p *pageMeta) Title() string {
return p.pageConfig.Title
}
const defaultContentType = "page"
func (p *pageMeta) Type() string {
if p.pageConfig.Type != "" {
return p.pageConfig.Type
}
if sect := p.Section(); sect != "" {
return sect
}
return defaultContentType
}
func (p *pageMeta) Weight() int {
return p.pageConfig.Weight
}
func (p *pageMeta) setMetaPre(pi *contentParseInfo, logger loggers.Logger, conf config.AllProvider) error {
frontmatter := pi.frontMatter
if frontmatter != nil {
pcfg := p.pageConfig
if pcfg == nil {
panic("pageConfig not set")
}
// Needed for case insensitive fetching of params values
maps.PrepareParams(frontmatter)
pcfg.Params = frontmatter
// Check for any cascade define on itself.
if cv, found := frontmatter["cascade"]; found {
var err error
cascade, err := page.DecodeCascade(logger, cv)
if err != nil {
return err
}
pcfg.Cascade = cascade
}
// Look for path, lang and kind, all of which values we need early on.
if v, found := frontmatter["path"]; found {
pcfg.Path = paths.ToSlashPreserveLeading(cast.ToString(v))
pcfg.Params["path"] = pcfg.Path
}
if v, found := frontmatter["lang"]; found {
lang := strings.ToLower(cast.ToString(v))
if _, ok := conf.PathParser().LanguageIndex[lang]; ok {
pcfg.Lang = lang
pcfg.Params["lang"] = pcfg.Lang
}
}
if v, found := frontmatter["kind"]; found {
s := cast.ToString(v)
if s != "" {
pcfg.Kind = kinds.GetKindMain(s)
if pcfg.Kind == "" {
return fmt.Errorf("unknown kind %q in front matter", s)
}
pcfg.Params["kind"] = pcfg.Kind
}
}
} else if p.pageMetaParams.pageConfig.Params == nil {
p.pageConfig.Params = make(maps.Params)
}
p.pageMetaParams.init(conf.Watching())
return nil
}
func (ps *pageState) setMetaPost(cascade map[page.PageMatcher]maps.Params) error {
ps.m.setMetaPostCount++
var cascadeHashPre uint64
if ps.m.setMetaPostCount > 1 {
cascadeHashPre = identity.HashUint64(ps.m.pageConfig.Cascade)
ps.m.pageConfig.Cascade = xmaps.Clone[map[page.PageMatcher]maps.Params](ps.m.cascadeOriginal)
}
// Apply cascades first so they can be overridden later.
if cascade != nil {
if ps.m.pageConfig.Cascade != nil {
for k, v := range cascade {
vv, found := ps.m.pageConfig.Cascade[k]
if !found {
ps.m.pageConfig.Cascade[k] = v
} else {
// Merge
for ck, cv := range v {
if _, found := vv[ck]; !found {
vv[ck] = cv
}
}
}
}
cascade = ps.m.pageConfig.Cascade
} else {
ps.m.pageConfig.Cascade = cascade
}
}
if cascade == nil {
cascade = ps.m.pageConfig.Cascade
}
if ps.m.setMetaPostCount > 1 {
ps.m.setMetaPostCascadeChanged = cascadeHashPre != identity.HashUint64(ps.m.pageConfig.Cascade)
if !ps.m.setMetaPostCascadeChanged {
// No changes, restore any value that may be changed by aggregation.
ps.m.pageConfig.Dates = ps.m.datesOriginal
return nil
}
ps.m.setMetaPostPrepareRebuild()
}
// Cascade is also applied to itself.
for m, v := range cascade {
if !m.Matches(ps) {
continue
}
for kk, vv := range v {
if _, found := ps.m.pageConfig.Params[kk]; !found {
ps.m.pageConfig.Params[kk] = vv
}
}
}
if err := ps.setMetaPostParams(); err != nil {
return err
}
if err := ps.m.applyDefaultValues(); err != nil {
return err
}
// Store away any original values that may be changed from aggregation.
ps.m.datesOriginal = ps.m.pageConfig.Dates
return nil
}
func (p *pageState) setMetaPostParams() error {
pm := p.m
var mtime time.Time
var contentBaseName string
if p.File() != nil {
contentBaseName = p.File().ContentBaseName()
if p.File().FileInfo() != nil {
mtime = p.File().FileInfo().ModTime()
}
}
var gitAuthorDate time.Time
if !p.gitInfo.IsZero() {
gitAuthorDate = p.gitInfo.AuthorDate
}
descriptor := &pagemeta.FrontMatterDescriptor{
PageConfig: pm.pageConfig,
BaseFilename: contentBaseName,
ModTime: mtime,
GitAuthorDate: gitAuthorDate,
Location: langs.GetLocation(pm.s.Language()),
}
// Handle the date separately
// TODO(bep) we need to "do more" in this area so this can be split up and
// more easily tested without the Page, but the coupling is strong.
err := pm.s.frontmatterHandler.HandleDates(descriptor)
if err != nil {
p.s.Log.Errorf("Failed to handle dates for page %q: %s", p.pathOrTitle(), err)
}
var buildConfig any
var isNewBuildKeyword bool
if v, ok := pm.pageConfig.Params["_build"]; ok {
buildConfig = v
} else {
buildConfig = pm.pageConfig.Params["build"]
isNewBuildKeyword = true
}
pm.pageConfig.Build, err = pagemeta.DecodeBuildConfig(buildConfig)
if err != nil {
var msgDetail string
if isNewBuildKeyword {
msgDetail = `. We renamed the _build keyword to build in Hugo 0.123.0. We recommend putting user defined params in the params section, e.g.:
---
title: "My Title"
params:
build: "My Build"
---
´
`
}
return fmt.Errorf("failed to decode build config in front matter: %s%s", err, msgDetail)
}
var sitemapSet bool
pcfg := pm.pageConfig
params := pcfg.Params
var draft, published, isCJKLanguage *bool
var userParams map[string]any
for k, v := range pcfg.Params {
loki := strings.ToLower(k)
if loki == "params" {
vv, err := maps.ToStringMapE(v)
if err != nil {
return err
}
userParams = vv
delete(pcfg.Params, k)
continue
}
if loki == "published" { // Intentionally undocumented
vv, err := cast.ToBoolE(v)
if err == nil {
published = &vv
}
// published may also be a date
continue
}
if pm.s.frontmatterHandler.IsDateKey(loki) {
continue
}
switch loki {
case "title":
pcfg.Title = cast.ToString(v)
params[loki] = pcfg.Title
case "linktitle":
pcfg.LinkTitle = cast.ToString(v)
params[loki] = pcfg.LinkTitle
case "summary":
pcfg.Summary = cast.ToString(v)
params[loki] = pcfg.Summary
case "description":
pcfg.Description = cast.ToString(v)
params[loki] = pcfg.Description
case "slug":
// Don't start or end with a -
pcfg.Slug = strings.Trim(cast.ToString(v), "-")
params[loki] = pm.Slug()
case "url":
url := cast.ToString(v)
if strings.HasPrefix(url, "http://") || strings.HasPrefix(url, "https://") {
return fmt.Errorf("URLs with protocol (http*) not supported: %q. In page %q", url, p.pathOrTitle())
}
pcfg.URL = url
params[loki] = url
case "type":
pcfg.Type = cast.ToString(v)
params[loki] = pcfg.Type
case "keywords":
pcfg.Keywords = cast.ToStringSlice(v)
params[loki] = pcfg.Keywords
case "headless":
// Legacy setting for leaf bundles.
// This is since Hugo 0.63 handled in a more general way for all
// pages.
isHeadless := cast.ToBool(v)
params[loki] = isHeadless
if isHeadless {
pm.pageConfig.Build.List = pagemeta.Never
pm.pageConfig.Build.Render = pagemeta.Never
}
case "outputs":
o := cast.ToStringSlice(v)
// lower case names:
for i, s := range o {
o[i] = strings.ToLower(s)
}
if len(o) > 0 {
// Output formats are explicitly set in front matter, use those.
outFormats, err := p.s.conf.OutputFormats.Config.GetByNames(o...)
if err != nil {
p.s.Log.Errorf("Failed to resolve output formats: %s", err)
} else {
pm.configuredOutputFormats = outFormats
params[loki] = outFormats
}
}
case "draft":
draft = new(bool)
*draft = cast.ToBool(v)
case "layout":
pcfg.Layout = cast.ToString(v)
params[loki] = pcfg.Layout
case "markup":
pcfg.Markup = cast.ToString(v)
params[loki] = pcfg.Markup
case "weight":
pcfg.Weight = cast.ToInt(v)
params[loki] = pcfg.Weight
case "aliases":
pcfg.Aliases = cast.ToStringSlice(v)
for i, alias := range pcfg.Aliases {
if strings.HasPrefix(alias, "http://") || strings.HasPrefix(alias, "https://") {
return fmt.Errorf("http* aliases not supported: %q", alias)
}
pcfg.Aliases[i] = filepath.ToSlash(alias)
}
params[loki] = pcfg.Aliases
case "sitemap":
pcfg.Sitemap, err = config.DecodeSitemap(p.s.conf.Sitemap, maps.ToStringMap(v))
if err != nil {
return fmt.Errorf("failed to decode sitemap config in front matter: %s", err)
}
sitemapSet = true
case "iscjklanguage":
isCJKLanguage = new(bool)
*isCJKLanguage = cast.ToBool(v)
case "translationkey":
pcfg.TranslationKey = cast.ToString(v)
params[loki] = pcfg.TranslationKey
case "resources":
var resources []map[string]any
handled := true
switch vv := v.(type) {
case []map[any]any:
for _, vvv := range vv {
resources = append(resources, maps.ToStringMap(vvv))
}
case []map[string]any:
resources = append(resources, vv...)
case []any:
for _, vvv := range vv {
switch vvvv := vvv.(type) {
case map[any]any:
resources = append(resources, maps.ToStringMap(vvvv))
case map[string]any:
resources = append(resources, vvvv)
}
}
default:
handled = false
}
if handled {
pcfg.Resources = resources
break
}
fallthrough
default:
// If not one of the explicit values, store in Params
switch vv := v.(type) {
case []any:
if len(vv) > 0 {
allStrings := true
for _, vvv := range vv {
if _, ok := vvv.(string); !ok {
allStrings = false
break
}
}
if allStrings {
// We need tags, keywords etc. to be []string, not []interface{}.
a := make([]string, len(vv))
for i, u := range vv {
a[i] = cast.ToString(u)
}
params[loki] = a
} else {
params[loki] = vv
}
} else {
params[loki] = []string{}
}
default:
params[loki] = vv
}
}
}
for k, v := range userParams {
if _, found := params[k]; found {
p.s.Log.Warnidf(constants.WarnFrontMatterParamsOverrides, "Hugo front matter key %q is overridden in params section.", k)
}
params[strings.ToLower(k)] = v
}
if !sitemapSet {
pcfg.Sitemap = p.s.conf.Sitemap
}
pcfg.Markup = p.s.ContentSpec.ResolveMarkup(pcfg.Markup)
if draft != nil && published != nil {
pcfg.Draft = *draft
p.m.s.Log.Warnf("page %q has both draft and published settings in its frontmatter. Using draft.", p.File().Filename())
} else if draft != nil {
pcfg.Draft = *draft
} else if published != nil {
pcfg.Draft = !*published
}
params["draft"] = pcfg.Draft
if isCJKLanguage != nil {
pcfg.IsCJKLanguage = *isCJKLanguage
} else if p.s.conf.HasCJKLanguage && p.m.content.pi.openSource != nil {
if cjkRe.Match(p.m.content.mustSource()) {
pcfg.IsCJKLanguage = true
} else {
pcfg.IsCJKLanguage = false
}
}
params["iscjklanguage"] = pcfg.IsCJKLanguage
return nil
}
// shouldList returns whether this page should be included in the list of pages.
// global indicates site.Pages etc.
func (p *pageMeta) shouldList(global bool) bool {
if p.isStandalone() {
// Never list 404, sitemap and similar.
return false
}
switch p.pageConfig.Build.List {
case pagemeta.Always:
return true
case pagemeta.Never:
return false
case pagemeta.ListLocally:
return !global
}
return false
}
func (p *pageMeta) shouldListAny() bool {
return p.shouldList(true) || p.shouldList(false)
}
func (p *pageMeta) isStandalone() bool {
return !p.standaloneOutputFormat.IsZero()
}
func (p *pageMeta) shouldBeCheckedForMenuDefinitions() bool {
if !p.shouldList(false) {
return false
}
return p.pageConfig.Kind == kinds.KindHome || p.pageConfig.Kind == kinds.KindSection || p.pageConfig.Kind == kinds.KindPage
}
func (p *pageMeta) noRender() bool {
return p.pageConfig.Build.Render != pagemeta.Always
}
func (p *pageMeta) noLink() bool {
return p.pageConfig.Build.Render == pagemeta.Never
}
func (p *pageMeta) applyDefaultValues() error {
if p.pageConfig.Build.IsZero() {
p.pageConfig.Build, _ = pagemeta.DecodeBuildConfig(nil)
}
if !p.s.conf.IsKindEnabled(p.Kind()) {
(&p.pageConfig.Build).Disable()
}
if p.pageConfig.Markup == "" {
if p.File() != nil {
// Fall back to file extension
p.pageConfig.Markup = p.s.ContentSpec.ResolveMarkup(p.File().Ext())
}
if p.pageConfig.Markup == "" {
p.pageConfig.Markup = "markdown"
}
}
p.pageConfig.IsGoldmark = p.s.ContentSpec.Converters.IsGoldmark(p.pageConfig.Markup)
if p.pageConfig.Title == "" && p.f == nil {
switch p.Kind() {
case kinds.KindHome:
p.pageConfig.Title = p.s.Title()
case kinds.KindSection:
sectionName := p.pathInfo.Unnormalized().BaseNameNoIdentifier()
if p.s.conf.PluralizeListTitles {
sectionName = flect.Pluralize(sectionName)
}
if p.s.conf.CapitalizeListTitles {
sectionName = p.s.conf.C.CreateTitle(sectionName)
}
p.pageConfig.Title = sectionName
case kinds.KindTerm:
if p.term != "" {
if p.s.conf.CapitalizeListTitles {
p.pageConfig.Title = p.s.conf.C.CreateTitle(p.term)
} else {
p.pageConfig.Title = p.term
}
} else {
panic("term not set")
}
case kinds.KindTaxonomy:
if p.s.conf.CapitalizeListTitles {
p.pageConfig.Title = strings.Replace(p.s.conf.C.CreateTitle(p.pathInfo.Unnormalized().BaseNameNoIdentifier()), "-", " ", -1)
} else {
p.pageConfig.Title = strings.Replace(p.pathInfo.Unnormalized().BaseNameNoIdentifier(), "-", " ", -1)
}
case kinds.KindStatus404:
p.pageConfig.Title = "404 Page not found"
}
}
return nil
}
func (p *pageMeta) newContentConverter(ps *pageState, markup string) (converter.Converter, error) {
if ps == nil {
panic("no Page provided")
}
cp := p.s.ContentSpec.Converters.Get(markup)
if cp == nil {
return converter.NopConverter, fmt.Errorf("no content renderer found for markup %q, page: %s", markup, ps.getPageInfoForError())
}
var id string
var filename string
var path string
if p.f != nil {
id = p.f.UniqueID()
filename = p.f.Filename()
path = p.f.Path()
} else {
path = p.Path()
}
doc := newPageForRenderHook(ps)
documentLookup := func(id uint64) any {
if id == ps.pid {
// This prevents infinite recursion in some cases.
return doc
}
if v, ok := ps.pageOutput.pco.otherOutputs[id]; ok {
return v.po.p
}
return nil
}
cpp, err := cp.New(
converter.DocumentContext{
Document: doc,
DocumentLookup: documentLookup,
DocumentID: id,
DocumentName: path,
Filename: filename,
},
)
if err != nil {
return converter.NopConverter, err
}
return cpp, nil
}
// The output formats this page will be rendered to.
func (m *pageMeta) outputFormats() output.Formats {
if len(m.configuredOutputFormats) > 0 {
return m.configuredOutputFormats
}
return m.s.conf.C.KindOutputFormats[m.Kind()]
}
func (p *pageMeta) Slug() string {
return p.pageConfig.Slug
}
func getParam(m resource.ResourceParamsProvider, key string, stringToLower bool) any {
v := m.Params()[strings.ToLower(key)]
if v == nil {
return nil
}
switch val := v.(type) {
case bool:
return val
case string:
if stringToLower {
return strings.ToLower(val)
}
return val
case int64, int32, int16, int8, int:
return cast.ToInt(v)
case float64, float32:
return cast.ToFloat64(v)
case time.Time:
return val
case []string:
if stringToLower {
return helpers.SliceToLower(val)
}
return v
default:
return v
}
}
func getParamToLower(m resource.ResourceParamsProvider, key string) any {
return getParam(m, key, true)
}
func (ps *pageState) initLazyProviders() error {
ps.init.Add(func(ctx context.Context) (any, error) {
pp, err := newPagePaths(ps)
if err != nil {
return nil, err
}
var outputFormatsForPage output.Formats
var renderFormats output.Formats
if ps.m.standaloneOutputFormat.IsZero() {
outputFormatsForPage = ps.m.outputFormats()
renderFormats = ps.s.h.renderFormats
} else {
// One of the fixed output format pages, e.g. 404.
outputFormatsForPage = output.Formats{ps.m.standaloneOutputFormat}
renderFormats = outputFormatsForPage
}
// Prepare output formats for all sites.
// We do this even if this page does not get rendered on
// its own. It may be referenced via one of the site collections etc.
// it will then need an output format.
ps.pageOutputs = make([]*pageOutput, len(renderFormats))
created := make(map[string]*pageOutput)
shouldRenderPage := !ps.m.noRender()
for i, f := range renderFormats {
if po, found := created[f.Name]; found {
ps.pageOutputs[i] = po
continue
}
render := shouldRenderPage
if render {
_, render = outputFormatsForPage.GetByName(f.Name)
}
po := newPageOutput(ps, pp, f, render)
// Create a content provider for the first,
// we may be able to reuse it.
if i == 0 {
contentProvider, err := newPageContentOutput(po)
if err != nil {
return nil, err
}
po.setContentProvider(contentProvider)
}
ps.pageOutputs[i] = po
created[f.Name] = po
}
if err := ps.initCommonProviders(pp); err != nil {
return nil, err
}
return nil, nil
})
return nil
}