Class: Gollum::Page

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

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 86

def initialize(wiki)
  @wiki = wiki
  @blob = @header = @footer = @sidebar = 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 11

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 16

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 135

def path
  @path
end

#version ⇒ Object

Public: The current version of the page.

Returns the Grit::Commit.



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# File 'lib/gollum-lib/page.rb', line 254

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 359

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 68

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 335

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 60

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 346

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 24

def self.parse_filename(filename)
  return [] unless filename =~ /^(.+)\.([a-zA-Z]\w*)$/i
  pref, ext = $1, $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 77

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 39

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 50

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 175

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 96

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 103

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 372

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?(Grit::Commit) ?
      version : @wiki.commit_for(version)
    page.historical = page.version.to_s == version.to_s
    page
  end
rescue Grit::GitRuby::Repository::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 391

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_page(name) ⇒ Object

Loads a sub page. 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.

name - String page name.

Returns the Page or nil if none exists.



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# File 'lib/gollum-lib/page.rb', line 457

def find_sub_page(name)
  return nil unless self.version
  return nil if self.filename =~ /^_/
  name = "_#{name.to_s.capitalize}"
  return nil if page_match(name, self.filename)

  dirs = self.path.split('/')
  dirs.pop
  map = @wiki.tree_map_for(@wiki.ref, true)
  while !dirs.empty?
    if page = find_page_in_tree(map, name, dirs.join('/'))
      page.parent_page = self
      return page
    end
    dirs.pop
  end

  if page = find_page_in_tree(map, name, '')
    page.parent_page = self
  end
  page
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 294

def footer
  @footer ||= find_sub_page(: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 240

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

#formatted_data(encoding = nil, &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 211

def formatted_data(encoding = nil, &block)
  @blob && markup_class.render(historical?, encoding) do |doc|
    @doc = doc
    yield doc if block_given?
  end
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 287

def header
  @header ||= find_sub_page(: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 310

def historical?
  !!@historical
end

#inspect ⇒ Object 



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# File 'lib/gollum-lib/page.rb', line 480

def inspect
  %(#<#{self.class.name}:#{object_id} #{name} (#{format}) @wiki=#{@wiki.repo.path.inspect}>)
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 247

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 232

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 163

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

  nil
end

#name ⇒ Object

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 111

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 440

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 Grit::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 414

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 182

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 301

def sidebar
  @sidebar ||= find_sub_page(: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 128

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 198

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

#title ⇒ Object

Public: The title will be constructed from the filename by stripping the extension and replacing any dashes with spaces.

Returns the fully sanitized String title.



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# File 'lib/gollum-lib/page.rb', line 120

def title
  Sanitize.clean(name).strip
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 223

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 Grit::Tree for which to compute the path.

Returns the String path.



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# File 'lib/gollum-lib/page.rb', line 426

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 140

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

  path << Page.cname(self.name, '-', '-')
  path
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 154

def url_path_title
  metadata_title || url_path.gsub("-", " ")
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 280

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, but falls back
            to a slower Grit native call.  (default: false)

Returns an Array of Grit::Commit.



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

def versions(options = {})
  if options[:follow]
    options[:pretty] = 'raw'
    options.delete :max_count
    options.delete :skip
    log = @wiki.repo.git.native "log", options, @wiki.ref, "--", @path
    Grit::Commit.list_from_string(@wiki.repo, log)
  else
    @wiki.repo.log(@wiki.ref, @path, log_pagination_options(options))
  end
end