summaryrefslogtreecommitdiff
path: root/app/models/project_wiki.rb
blob: 218be97421863db3fa2f02af04d0e90b50d1d9a0 (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
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
# frozen_string_literal: true

class ProjectWiki
  include Gitlab::ShellAdapter
  include Storage::LegacyProjectWiki

  MARKUPS = {
    'Markdown' => :markdown,
    'RDoc'     => :rdoc,
    'AsciiDoc' => :asciidoc
  }.freeze unless defined?(MARKUPS)

  CouldNotCreateWikiError = Class.new(StandardError)
  SIDEBAR = '_sidebar'

  TITLE_ORDER = 'title'
  CREATED_AT_ORDER = 'created_at'
  DIRECTION_DESC = 'desc'
  DIRECTION_ASC = 'asc'

  # Returns a string describing what went wrong after
  # an operation fails.
  attr_reader :error_message
  attr_reader :project

  def initialize(project, user = nil)
    @project = project
    @user = user
  end

  delegate :repository_storage, :hashed_storage?, to: :project

  def path
    @project.path + '.wiki'
  end

  def full_path
    @project.full_path + '.wiki'
  end

  # @deprecated use full_path when you need it for an URL route or disk_path when you want to point to the filesystem
  alias_method :path_with_namespace, :full_path

  def web_url
    Gitlab::Routing.url_helpers.project_wiki_url(@project, :home)
  end

  def url_to_repo
    gitlab_shell.url_to_repo(full_path)
  end

  def ssh_url_to_repo
    url_to_repo
  end

  def http_url_to_repo
    "#{Gitlab.config.gitlab.url}/#{full_path}.git"
  end

  def wiki_base_path
    [Gitlab.config.gitlab.relative_url_root, '/', @project.full_path, '/wikis'].join('')
  end

  # Returns the Gitlab::Git::Wiki object.
  def wiki
    @wiki ||= begin
      gl_repository = Gitlab::GlRepository::WIKI.identifier_for_subject(project)
      raw_repository = Gitlab::Git::Repository.new(project.repository_storage, disk_path + '.git', gl_repository, full_path)

      create_repo!(raw_repository) unless raw_repository.exists?

      Gitlab::Git::Wiki.new(raw_repository)
    end
  end

  def repository_exists?
    !!repository.exists?
  end

  def has_home_page?
    !!find_page('home')
  end

  def empty?
    list_pages(limit: 1).empty?
  end

  def exists?
    !empty?
  end

  # Lists wiki pages of the repository.
  #
  # limit - max number of pages returned by the method.
  # sort - criterion by which the pages are sorted.
  # direction - order of the sorted pages.
  # load_content - option, which specifies whether the content inside the page
  #                will be loaded.
  #
  # Returns an Array of GitLab WikiPage instances or an
  # empty Array if this Wiki has no pages.
  def list_pages(limit: 0, sort: nil, direction: DIRECTION_ASC, load_content: false)
    wiki.list_pages(
      limit: limit,
      sort: sort,
      direction_desc: direction == DIRECTION_DESC,
      load_content: load_content
    ).map do |page|
      WikiPage.new(self, page, true)
    end
  end

  # Finds a page within the repository based on a tile
  # or slug.
  #
  # title - The human readable or parameterized title of
  #         the page.
  #
  # Returns an initialized WikiPage instance or nil
  def find_page(title, version = nil)
    page_title, page_dir = page_title_and_dir(title)

    if page = wiki.page(title: page_title, version: version, dir: page_dir)
      WikiPage.new(self, page, true)
    end
  end

  def find_sidebar(version = nil)
    find_page(SIDEBAR, version)
  end

  def find_file(name, version = nil)
    wiki.file(name, version)
  end

  def create_page(title, content, format = :markdown, message = nil)
    commit = commit_details(:created, message, title)

    wiki.write_page(title, format.to_sym, content, commit)

    update_project_activity
  rescue Gitlab::Git::Wiki::DuplicatePageError => e
    @error_message = "Duplicate page: #{e.message}"
    false
  end

  def update_page(page, content:, title: nil, format: :markdown, message: nil)
    commit = commit_details(:updated, message, page.title)

    wiki.update_page(page.path, title || page.name, format.to_sym, content, commit)

    update_project_activity
  end

  def delete_page(page, message = nil)
    return unless page

    wiki.delete_page(page.path, commit_details(:deleted, message, page.title))

    update_project_activity
  end

  def page_formatted_data(page)
    page_title, page_dir = page_title_and_dir(page.title)

    wiki.page_formatted_data(title: page_title, dir: page_dir, version: page.version)
  end

  def page_title_and_dir(title)
    return unless title

    title_array = title.split("/")
    title = title_array.pop
    [title, title_array.join("/")]
  end

  def repository
    @repository ||= Repository.new(full_path, @project, disk_path: disk_path, repo_type: Gitlab::GlRepository::WIKI)
  end

  def default_branch
    wiki.class.default_ref
  end

  def ensure_repository
    raise CouldNotCreateWikiError unless wiki.repository_exists?
  end

  def hook_attrs
    {
      web_url: web_url,
      git_ssh_url: ssh_url_to_repo,
      git_http_url: http_url_to_repo,
      path_with_namespace: full_path,
      default_branch: default_branch
    }
  end

  private

  def create_repo!(raw_repository)
    gitlab_shell.create_wiki_repository(project)

    raise CouldNotCreateWikiError unless raw_repository.exists?

    repository.after_create
  end

  def commit_details(action, message = nil, title = nil)
    commit_message = message.presence || default_message(action, title)
    git_user = Gitlab::Git::User.from_gitlab(@user)

    Gitlab::Git::Wiki::CommitDetails.new(@user.id,
                                         git_user.username,
                                         git_user.name,
                                         git_user.email,
                                         commit_message)
  end

  def default_message(action, title)
    "#{@user.username} #{action} page: #{title}"
  end

  def update_project_activity
    @project.touch(:last_activity_at, :last_repository_updated_at)
  end
end

ProjectWiki.prepend_if_ee('EE::ProjectWiki')