summaryrefslogtreecommitdiffstats
path: root/hugolib/page_collections.go
blob: e72f9a7314e75c6979d64b0fac1d0da743662844 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
// 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"

	"github.com/gohugoio/hugo/cache"
)

// 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

	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)

	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 _, p := range c.AllRegularPages {
					cache[filepath.ToSlash(p.Source.Path())] = p
					// Ref/Relref supports this potentially ambiguous lookup.
					cache[p.Source.LogicalName()] = p
				}
			default:
				for _, p := range c.indexPages {
					key := path.Join(p.sections...)
					cache[key] = p
				}
			}

			return cache, nil
		}
	}

	var partitions []cache.Partition

	for _, kind := range allKindsInPages {
		partitions = append(partitions, 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)
}

// When we get a REMOVE event we're not always getting all the individual files,
// so we need to remove all below a given path.
func (c *PageCollections) removePageByPathPrefix(path string) {
	for {
		i := c.rawAllPages.findFirstPagePosByFilePathPrefix(path)
		if i == -1 {
			break
		}
		c.rawAllPages = append(c.rawAllPages[:i], c.rawAllPages[i+1:]...)
	}
}

func (c *PageCollections) removePageByPath(path string) {
	if i := c.rawAllPages.findPagePosByFilePath(path); i >= 0 {
		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.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)
}