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// Copyright 2016 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 (
"path"
"path/filepath"
"strings"
"github.com/gohugoio/hugo/cache"
"github.com/gohugoio/hugo/helpers"
)
// PageCollections contains the page collections for a site.
type PageCollections struct {
// Includes only pages of all types, and only pages in the current language.
Pages Pages
// Includes all pages in all languages, including the current one.
// Includes pages of all types.
AllPages Pages
// A convenience cache for the traditional index types, taxonomies, home page etc.
// This is for the current language only.
indexPages Pages
// A convenience cache for the regular pages.
// This is for the current language only.
RegularPages Pages
// A convenience cache for the all the regular pages.
AllRegularPages Pages
// Includes absolute all pages (of all types), including drafts etc.
rawAllPages Pages
// Includes headless bundles, i.e. bundles that produce no output for its content page.
headlessPages Pages
pageCache *cache.PartitionedLazyCache
}
func (c *PageCollections) refreshPageCaches() {
c.indexPages = c.findPagesByKindNotIn(KindPage, c.Pages)
c.RegularPages = c.findPagesByKindIn(KindPage, c.Pages)
c.AllRegularPages = c.findPagesByKindIn(KindPage, c.AllPages)
var s *Site
if len(c.Pages) > 0 {
s = c.Pages[0].s
}
cacheLoader := func(kind string) func() (map[string]interface{}, error) {
return func() (map[string]interface{}, error) {
cache := make(map[string]interface{})
switch kind {
case KindPage:
// Note that we deliberately use the pages from all sites
// in this cache, as we intend to use this in the ref and relref
// shortcodes. If the user says "sect/doc1.en.md", he/she knows
// what he/she is looking for.
for _, pageCollection := range []Pages{c.AllRegularPages, c.headlessPages} {
for _, p := range pageCollection {
cache[filepath.ToSlash(p.Source.Path())] = p
if s != nil && p.s == s {
// Ref/Relref supports this potentially ambiguous lookup.
cache[p.Source.LogicalName()] = p
translasionBaseName := p.Source.TranslationBaseName()
dir := filepath.ToSlash(strings.TrimSuffix(p.Dir(), helpers.FilePathSeparator))
if translasionBaseName == "index" {
_, name := path.Split(dir)
cache[name] = p
cache[dir] = p
} else {
// Again, ambigous
cache[translasionBaseName] = p
}
// We need a way to get to the current language version.
pathWithNoExtensions := path.Join(dir, translasionBaseName)
cache[pathWithNoExtensions] = p
}
}
}
default:
for _, p := range c.indexPages {
key := path.Join(p.sections...)
cache[key] = p
}
}
return cache, nil
}
}
partitions := make([]cache.Partition, len(allKindsInPages))
for i, kind := range allKindsInPages {
partitions[i] = cache.Partition{Key: kind, Load: cacheLoader(kind)}
}
c.pageCache = cache.NewPartitionedLazyCache(partitions...)
}
func newPageCollections() *PageCollections {
return &PageCollections{}
}
func newPageCollectionsFromPages(pages Pages) *PageCollections {
return &PageCollections{rawAllPages: pages}
}
func (c *PageCollections) getPage(typ string, sections ...string) *Page {
var key string
if len(sections) == 1 {
key = filepath.ToSlash(sections[0])
} else {
key = path.Join(sections...)
}
p, _ := c.pageCache.Get(typ, key)
if p == nil {
return nil
}
return p.(*Page)
}
func (*PageCollections) findPagesByKindIn(kind string, inPages Pages) Pages {
var pages Pages
for _, p := range inPages {
if p.Kind == kind {
pages = append(pages, p)
}
}
return pages
}
func (*PageCollections) findPagesByKindNotIn(kind string, inPages Pages) Pages {
var pages Pages
for _, p := range inPages {
if p.Kind != kind {
pages = append(pages, p)
}
}
return pages
}
func (c *PageCollections) findPagesByKind(kind string) Pages {
return c.findPagesByKindIn(kind, c.Pages)
}
func (c *PageCollections) addPage(page *Page) {
c.rawAllPages = append(c.rawAllPages, page)
}
func (c *PageCollections) removePageByPath(path string) {
if i := c.rawAllPages.findPagePosByFilePath(path); i >= 0 {
c.clearResourceCacheForPage(c.rawAllPages[i])
c.rawAllPages = append(c.rawAllPages[:i], c.rawAllPages[i+1:]...)
}
}
func (c *PageCollections) removePage(page *Page) {
if i := c.rawAllPages.findPagePos(page); i >= 0 {
c.clearResourceCacheForPage(c.rawAllPages[i])
c.rawAllPages = append(c.rawAllPages[:i], c.rawAllPages[i+1:]...)
}
}
func (c *PageCollections) findPagesByShortcode(shortcode string) Pages {
var pages Pages
for _, p := range c.rawAllPages {
if p.shortcodeState != nil {
if _, ok := p.shortcodeState.nameSet[shortcode]; ok {
pages = append(pages, p)
}
}
}
return pages
}
func (c *PageCollections) replacePage(page *Page) {
// will find existing page that matches filepath and remove it
c.removePage(page)
c.addPage(page)
}
func (c *PageCollections) clearResourceCacheForPage(page *Page) {
if len(page.Resources) > 0 {
first := page.Resources[0]
dir := path.Dir(first.RelPermalink())
// This is done to keep the memory usage in check when doing live reloads.
page.s.resourceSpec.DeleteCacheByPrefix(dir)
}
}
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