Class: Gollum::Page

Inherits:
Object
  • Object
show all
Includes:
Pagination
Defined in:
lib/gollum-lib/page.rb

Constant Summary collapse

SUBPAGENAMES = 
[:header, :footer, :sidebar]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Pagination

included, #log_pagination_options, #page_to_skip

Constructor Details

#initialize(wiki) ⇒ Page

Public: Initialize a page.

wiki - The Gollum::Wiki in question.

Returns a newly initialized Gollum::Page.



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# File 'lib/gollum-lib/page.rb', line 88

def initialize(wiki)
  @wiki           = wiki
  @blob           = nil
  @formatted_data = nil
  @doc            = nil
  @parent_page    = nil
end

Instance Attribute Details

#historical=(value) ⇒ Object (writeonly)

Sets a Boolean determing whether this page is a historical version.

Returns nothing.



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# File 'lib/gollum-lib/page.rb', line 13

def historical=(value)
  @historical = value
end

#parent_page ⇒ Object

Parent page if this is a sub page

Returns a Page



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# File 'lib/gollum-lib/page.rb', line 18

def parent_page
  @parent_page
end

#path ⇒ Object (readonly)

Public: The path of the page within the repo.

Returns the String path.



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# File 'lib/gollum-lib/page.rb', line 131

def path
  @path
end

#version ⇒ Object

Public: The current version of the page.

Returns the Gollum::Git::Commit.



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# File 'lib/gollum-lib/page.rb', line 265

def version
  @version
end

#wiki ⇒ Object (readonly)

The underlying wiki repo.

Returns the Gollum::Wiki containing the page.



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# File 'lib/gollum-lib/page.rb', line 372

def wiki
  @wiki
end

Class Method Details

.canonicalize_filename(filename) ⇒ Object

Reusable filter to turn a filename (without path) into a canonical name. Strips extension, converts dashes to spaces.

Returns the filtered String.



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# File 'lib/gollum-lib/page.rb', line 70

def self.canonicalize_filename(filename)
  strip_filename(filename).gsub('-', ' ')
end

.cname(name, char_white_sub = '-', char_other_sub = '-') ⇒ Object

Convert a human page name into a canonical page name.

name - The String human page name. char_white_sub - Substitution for whitespace char_other_sub - Substitution for other special chars

Examples

Page.cname("Bilbo Baggins")
# => 'Bilbo-Baggins'

Page.cname("Bilbo Baggins",'_')
# => 'Bilbo_Baggins'

Returns the String canonical name.



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# File 'lib/gollum-lib/page.rb', line 348

def self.cname(name, char_white_sub = '-', char_other_sub = '-')
  name.respond_to?(:gsub) ?
      name.gsub(%r(\s), char_white_sub).gsub(%r([<>+]), char_other_sub) :
      ''
end

.format_for(filename) ⇒ Object

Public: The format of a given filename.

filename - The String filename.

Returns the Symbol format of the page; one of the registered format types



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# File 'lib/gollum-lib/page.rb', line 62

def self.format_for(filename)
  self.parse_filename(filename).last
end

.format_to_ext(format) ⇒ Object

Convert a format Symbol into an extension String.

format - The format Symbol.

Returns the String extension (no leading period).



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# File 'lib/gollum-lib/page.rb', line 359

def self.format_to_ext(format)
  format == :markdown ? "md" : format.to_s
end

.parse_filename(filename) ⇒ Object

Checks a filename against the registered markup extensions

filename - String filename, like “Home.md”

Returns e.g. [“Home”, :markdown], or [] if the extension is unregistered



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# File 'lib/gollum-lib/page.rb', line 26

def self.parse_filename(filename)
  return [] unless filename =~ /^(.+)\.([a-zA-Z]\w*)$/i
  pref, ext = Regexp.last_match[1], Regexp.last_match[2]

  Gollum::Markup.formats.each_pair do |name, format|
    return [pref, name] if ext =~ format[:regexp]
  end
  []
end

.strip_filename(filename) ⇒ Object

Reusable filter to strip extension and path from filename

filename - The string path or filename to strip

Returns the stripped String.



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# File 'lib/gollum-lib/page.rb', line 79

def self.strip_filename(filename)
  ::File.basename(filename, ::File.extname(filename))
end

.valid_filename?(filename) ⇒ Boolean

Checks if a filename has a valid, registered extension

filename - String filename, like “Home.md”.

Returns the matching String basename of the file without the extension.

Returns:

  • (Boolean) 


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# File 'lib/gollum-lib/page.rb', line 41

def self.valid_filename?(filename)
  self.parse_filename(filename).first
end

.valid_page_name?(filename) ⇒ Boolean

Checks if a filename has a valid extension understood by GitHub::Markup. Also, checks if the filename has no “_” in the front (such as _Footer.md).

filename - String filename, like “Home.md”.

Returns the matching String basename of the file without the extension.

Returns:

  • (Boolean) 


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# File 'lib/gollum-lib/page.rb', line 52

def self.valid_page_name?(filename)
  match = valid_filename?(filename)
  filename =~ /^_/ ? false : match
end

Instance Method Details

#escaped_url_path ⇒ Object

Public: The url_path, but CGI escaped.

Returns the String url_path



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# File 'lib/gollum-lib/page.rb', line 178

def escaped_url_path
  CGI.escape(self.url_path).gsub('%2F', '/')
end

#filename ⇒ Object

Public: The on-disk filename of the page including extension.

Returns the String name.



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# File 'lib/gollum-lib/page.rb', line 99

def filename
  @blob && @blob.name
end

#filename_stripped ⇒ Object

Public: The on-disk filename of the page with extension stripped.

Returns the String name.



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# File 'lib/gollum-lib/page.rb', line 106

def filename_stripped
  self.class.strip_filename(filename)
end

#find(name, version, dir = nil, exact = false) ⇒ Object

Find a page in the given Gollum repo.

name - The human or canonical String page name to find. version - The String version ID to find.

Returns a Gollum::Page or nil if the page could not be found.



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# File 'lib/gollum-lib/page.rb', line 385

def find(name, version, dir = nil, exact = false)
  map = @wiki.tree_map_for(version.to_s)
  if (page = find_page_in_tree(map, name, dir, exact))
    page.version    = version.is_a?(Gollum::Git::Commit) ?
        version : @wiki.commit_for(version)
    page.historical = page.version.to_s == version.to_s
    page
  end
rescue Gollum::Git::NoSuchShaFound
end

#find_page_in_tree(map, name, checked_dir = nil, exact = false) ⇒ Object

Find a page in a given tree.

map - The Array tree map from Wiki#tree_map. name - The canonical String page name. checked_dir - Optional String of the directory a matching page needs

to be in.  The string should

Returns a Gollum::Page or nil if the page could not be found.



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# File 'lib/gollum-lib/page.rb', line 404

def find_page_in_tree(map, name, checked_dir = nil, exact = false)
  return nil if !map || name.to_s.empty?

  checked_dir = BlobEntry.normalize_dir(checked_dir)
  checked_dir = '' if exact && checked_dir.nil?
  name        = ::File.join(checked_dir, name) if checked_dir

  map.each do |entry|
    next if entry.name.to_s.empty?
    path = checked_dir ? ::File.join(entry.dir, entry.name) : entry.name
    next unless page_match(name, path)
    return entry.page(@wiki, @version)
  end

  return nil # nothing was found
end

#find_sub_pages(subpagenames = SUBPAGENAMES, map = nil) ⇒ Object

Loads sub pages. Sub page names (footers, headers, sidebars) are prefixed with an underscore to distinguish them from other Pages. If there is not one within the current directory, starts walking up the directory tree to try and find one within parent directories.



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# File 'lib/gollum-lib/page.rb', line 467

def find_sub_pages(subpagenames = SUBPAGENAMES, map = nil)
  subpagenames.each{|subpagename| instance_variable_set("@#{subpagename}", nil)}
  return nil if self.filename =~ /^_/ || ! self.version

  map ||= @wiki.tree_map_for(@wiki.ref, true)
  valid_names = subpagenames.map(&:capitalize).join("|")
  # From Ruby 2.2 onwards map.select! could be used
  map = map.select{|entry| entry.name =~ /^_(#{valid_names})/ }
  return if map.empty?

  subpagenames.each do |subpagename|
    dir = ::Pathname.new(self.path)
    while dir = dir.parent do
      subpageblob = map.find do |blob_entry|

        filename = "_#{subpagename.to_s.capitalize}"
        searchpath = dir == Pathname.new('.') ? Pathname.new(filename) : dir + filename
        entrypath = ::Pathname.new(blob_entry.path)
        # Ignore extentions
        entrypath = entrypath.dirname + entrypath.basename(entrypath.extname)
        entrypath == searchpath
      end

      if subpageblob
        subpage = subpageblob.page(@wiki, @version)
        subpage.parent_page = self
        instance_variable_set("@#{subpagename}", subpage)
        break
      end

      break if dir == Pathname.new('.')
    end
  end
end

#footer ⇒ Object

Public: The footer Page.

Returns the footer Page or nil if none exists.



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# File 'lib/gollum-lib/page.rb', line 305

def footer
  find_sub_pages unless defined?(@footer)
  @footer
end

#format ⇒ Object

Public: The format of the page.

Returns the Symbol format of the page; one of the registered format types



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# File 'lib/gollum-lib/page.rb', line 251

def format
  self.class.format_for(@blob.name)
end

#formatted_data(encoding = nil, include_levels = 10, &block) ⇒ Object

Public: The formatted contents of the page.

encoding - Encoding Constant or String.

Returns the String data.



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# File 'lib/gollum-lib/page.rb', line 214

def formatted_data(encoding = nil, include_levels = 10, &block)
  return nil unless @blob

  if @formatted_data && @doc then
    yield @doc if block_given?
  else
    @formatted_data = markup_class.render(historical?, encoding, include_levels) do |doc|
      @doc = doc
      yield doc if block_given?
    end
  end

  @formatted_data
end

#header ⇒ Object

Public: The header Page.

Returns the header Page or nil if none exists.



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# File 'lib/gollum-lib/page.rb', line 297

def header
  find_sub_pages unless defined?(@header)
  @header
end

#historical? ⇒ Boolean

Gets a Boolean determining whether this page is a historical version. Historical pages are pulled using exact SHA hashes and format all links with rel=“nofollow”

Returns true if the page is pulled from a named branch or tag, or false.

Returns:

  • (Boolean) 


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# File 'lib/gollum-lib/page.rb', line 323

def historical?
  !!@historical
end

#inspect ⇒ Object 



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# File 'lib/gollum-lib/page.rb', line 502

def inspect
  %(#<#{self.class.name}:#{object_id} #{name} (#{format}) @wiki=#{@wiki.repo.path.inspect}>)
end

#last_version ⇒ Object

Public: The last version that has touched the Page. Can be nil.

Returns Gollum::Git::Commit, or nil.



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# File 'lib/gollum-lib/page.rb', line 282

def last_version
  return @last_version if defined? @last_version
  @last_version = @wiki.repo.git.versions_for_path(@path, @wiki.ref, {:max_count => 1}).first
end

#markup_class ⇒ Object

Gets the Gollum::Markup instance that will render this page’s content.

Returns a Gollum::Markup instance.



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# File 'lib/gollum-lib/page.rb', line 258

def markup_class
  @markup_class ||= @wiki.markup_classes[format].new(self)
end

#metadata ⇒ Object

Public: Embedded metadata.

Returns Hash of metadata.



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# File 'lib/gollum-lib/page.rb', line 243

def metadata
  formatted_data if markup_class.metadata == nil
  markup_class.metadata
end

#metadata_title ⇒ Object

Public: Metadata title

Set with <!– — title: New Title –> in page content

Returns the String title or nil if not defined



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# File 'lib/gollum-lib/page.rb', line 166

def metadata_title
  if metadata
    title = metadata['title']
    return title unless title.nil?
  end

  nil
end

#name ⇒ Object Also known as: title

Public: The canonical page name without extension, and dashes converted to spaces.

Returns the String name.



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# File 'lib/gollum-lib/page.rb', line 114

def name
  self.class.canonicalize_filename(filename)
end

#page_match(name, path) ⇒ Object

Compare the canonicalized versions of the two names.

name - The human or canonical String page name. path - the String path on disk (including file extension).

Returns a Boolean.



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# File 'lib/gollum-lib/page.rb', line 453

def page_match(name, path)
  if (match = self.class.valid_filename?(path))
    @wiki.ws_subs.each do |sub|
      return true if Page.cname(name).downcase == Page.cname(match, sub).downcase
    end
  end
  false
end

#populate(blob, path = nil) ⇒ Object

Populate the Page with information from the Blob.

blob - The Gollum::Git::Blob that contains the info. path - The String directory path of the page file.

Returns the populated Gollum::Page.



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# File 'lib/gollum-lib/page.rb', line 427

def populate(blob, path=nil)
  @blob = blob
  @path = "#{path}/#{blob.name}"[1..-1]
  self
end

#raw_data ⇒ Object

Public: The raw contents of the page.

Returns the String data.



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# File 'lib/gollum-lib/page.rb', line 185

def raw_data
  return nil unless @blob

  if !@wiki.repo.bare && @blob.is_symlink
    new_path = @blob.symlink_target(::File.join(@wiki.repo.path, '..', self.path))
    return IO.read(new_path) if new_path
  end

  @blob.data
end

#sidebar ⇒ Object

Public: The sidebar Page.

Returns the sidebar Page or nil if none exists.



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# File 'lib/gollum-lib/page.rb', line 313

def sidebar
  find_sub_pages unless defined?(@sidebar)
  @sidebar
end

#sub_page ⇒ Object

Public: Determines if this is a sub-page Sub-pages have filenames beginning with an underscore

Returns true or false.



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# File 'lib/gollum-lib/page.rb', line 124

def sub_page
  filename =~ /^_/
end

#text_data(encoding = nil) ⇒ Object

Public: A text data encoded in specified encoding.

encoding - An Encoding or nil

Returns a character encoding aware String.



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# File 'lib/gollum-lib/page.rb', line 201

def text_data(encoding=nil)
  if raw_data.respond_to?(:encoding)
    raw_data.force_encoding(encoding || Encoding::UTF_8)
  else
    raw_data
  end
end

#toc_data ⇒ Object

Public: The table of contents of the page.

formatted_data - page already marked up in html.

Returns the String data.



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# File 'lib/gollum-lib/page.rb', line 234

def toc_data
  return @parent_page.toc_data if @parent_page and @sub_page
  formatted_data if markup_class.toc == nil
  markup_class.toc
end

#tree_path(treemap, tree) ⇒ Object

The full directory path for the given tree.

treemap - The Hash treemap containing parentage information. tree - The Gollum::Git::Tree for which to compute the path.

Returns the String path.



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# File 'lib/gollum-lib/page.rb', line 439

def tree_path(treemap, tree)
  if (ptree = treemap[tree])
    tree_path(treemap, ptree) + '/' + tree.name
  else
    ''
  end
end

#url_path ⇒ Object

Public: The url path required to reach this page within the repo.

Returns the String url_path



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# File 'lib/gollum-lib/page.rb', line 136

def url_path
  path = if self.path.include?('/')
           self.path.sub(/\/[^\/]+$/, '/')
         else
           ''
         end

  path << Page.cname(self.name, '-', '-')
  path
end

#url_path_display ⇒ Object

Public: The display form of the url path required to reach this page within the repo.

Returns the String url_path



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# File 'lib/gollum-lib/page.rb', line 150

def url_path_display
  url_path.gsub("-", " ")
end

#url_path_title ⇒ Object

Public: Defines title for page.rb

Returns the String title



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# File 'lib/gollum-lib/page.rb', line 157

def url_path_title
  metadata_title || url_path_display
end

#version_short ⇒ Object

Public: The first 7 characters of the current version.

Returns the first 7 characters of the current version.



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# File 'lib/gollum-lib/page.rb', line 290

def version_short
  version.to_s[0, 7]
end

#versions(options = {}) ⇒ Object

Public: All of the versions that have touched the Page.

options - The options Hash:

:page     - The Integer page number (default: 1).
:per_page - The Integer max count of items to return.
:follow   - Follow's a file across renames, slower.  (default: false)

Returns an Array of Gollum::Git::Commit.



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# File 'lib/gollum-lib/page.rb', line 275

def versions(options = {})
  @wiki.repo.git.versions_for_path(@path, @wiki.ref, log_pagination_options(options))
end