Class: RDoc::Generator::Darkfish

Inherits:
Object
  • Object
show all
Includes:
ERB::Util
Defined in:
lib/rdoc/generator/darkfish.rb

Overview

Darkfish RDoc HTML Generator

$Id: darkfish.rb 52 2009-01-07 02:08:11Z deveiant $

Author/s

Contributors

License

Copyright © 2007, 2008, Michael Granger. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

  • Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

  • Neither the name of the author/s, nor the names of the project’s contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Attributions

Darkfish uses the Silk Icons set by Mark James.

Constant Summary collapse

BUILTIN_STYLE_ITEMS =

Stylesheets, fonts, etc. that are included in RDoc.

%w[
    css/fonts.css
    fonts/Lato-Light.ttf
    fonts/Lato-LightItalic.ttf
    fonts/Lato-Regular.ttf
    fonts/Lato-RegularItalic.ttf
    fonts/SourceCodePro-Bold.ttf
    fonts/SourceCodePro-Regular.ttf
    css/rdoc.css
]
VERSION =

Release Version

'3'
DESCRIPTION =

Description of this generator

'HTML generator, written by Michael Granger'
ParagraphExcerptRegexpOther =

:stopdoc:

%r[\b\w[^./:]++\.]
ParagraphExcerptRegexpUnicode =

use p/Pletter instead of w/W in Unicode

%r[\b\p{letter}[^./:]++\.]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(store, options) ⇒ Darkfish

Initialize a few instance variables before we start



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# File 'lib/rdoc/generator/darkfish.rb', line 153

def initialize(store, options)
  @store   = store
  @options = options

  @asset_rel_path = ''
  @base_dir       = Pathname.pwd.expand_path
  @dry_run        = @options.dry_run
  @file_output    = true
  @template_dir   = Pathname.new options.template_dir
  @template_cache = {}

  @classes = nil
  @context = nil
  @files   = nil
  @methods = nil
  @modsort = nil

  @json_index = RDoc::Generator::JsonIndex.new self, options
end

Instance Attribute Details

#asset_rel_path ⇒ Object

The relative path to style sheets and javascript. By default this is set the same as the rel_prefix.



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# File 'lib/rdoc/generator/darkfish.rb', line 90

def asset_rel_path
  @asset_rel_path
end

#base_dir ⇒ Object (readonly)

The path to generate files into, combined with --op from the options for a full path.



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# File 'lib/rdoc/generator/darkfish.rb', line 96

def base_dir
  @base_dir
end

#classes ⇒ Object (readonly)

Classes and modules to be used by this generator, not necessarily displayed. See also #modsort



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# File 'lib/rdoc/generator/darkfish.rb', line 102

def classes
  @classes
end

#dry_run ⇒ Object

No files will be written when dry_run is true.



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# File 'lib/rdoc/generator/darkfish.rb', line 107

def dry_run
  @dry_run
end

#file_output ⇒ Object

When false the generate methods return a String instead of writing to a file. The default is true.



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# File 'lib/rdoc/generator/darkfish.rb', line 113

def file_output
  @file_output
end

#files ⇒ Object (readonly)

Files to be displayed by this generator



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# File 'lib/rdoc/generator/darkfish.rb', line 118

def files
  @files
end

#json_index ⇒ Object (readonly)

The JSON index generator for this Darkfish generator



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# File 'lib/rdoc/generator/darkfish.rb', line 123

def json_index
  @json_index
end

#methods ⇒ Object (readonly)

Methods to be displayed by this generator



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# File 'lib/rdoc/generator/darkfish.rb', line 128

def methods
  @methods
end

#modsort ⇒ Object (readonly)

Sorted list of classes and modules to be displayed by this generator



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# File 'lib/rdoc/generator/darkfish.rb', line 133

def modsort
  @modsort
end

#outputdir ⇒ Object (readonly)

The output directory



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# File 'lib/rdoc/generator/darkfish.rb', line 148

def outputdir
  @outputdir
end

#store ⇒ Object (readonly)

The RDoc::Store that is the source of the generated content



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# File 'lib/rdoc/generator/darkfish.rb', line 138

def store
  @store
end

#template_dir ⇒ Object (readonly)

The directory where the template files live



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# File 'lib/rdoc/generator/darkfish.rb', line 143

def template_dir
  @template_dir
end

Instance Method Details

#assemble_template(body_file) ⇒ Object

Creates a template from its components and the body_file.

For backwards compatibility, if body_file contains “<html” the body is used directly.



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# File 'lib/rdoc/generator/darkfish.rb', line 589

def assemble_template(body_file)
  body = body_file.read
  return body if body =~ /<html/

  head_file = @template_dir + '_head.rhtml'

  <<-TEMPLATE
<!DOCTYPE html>

<html lang="#{@options.locale&.name || 'en'}">
<head>
#{head_file.read}

#{body}
  TEMPLATE
end

#copy_static ⇒ Object

Copies static files from the static_path into the output directory



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# File 'lib/rdoc/generator/darkfish.rb', line 243

def copy_static
  return if @options.static_path.empty?

  fu_options = { :verbose => $DEBUG_RDOC, :noop => @dry_run }

  @options.static_path.each do |path|
    unless File.directory? path then
      FileUtils.install path, @outputdir, **fu_options.merge(:mode => 0644)
      next
    end

    Dir.chdir path do
      Dir[File.join('**', '*')].each do |entry|
        dest_file = @outputdir + entry

        if File.directory? entry then
          FileUtils.mkdir_p entry, **fu_options
        else
          FileUtils.install entry, dest_file, **fu_options.merge(:mode => 0644)
        end
      end
    end
  end
end

#debug_msg(*msg) ⇒ Object

Output progress information if debugging is enabled



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# File 'lib/rdoc/generator/darkfish.rb', line 176

def debug_msg *msg
  return unless $DEBUG_RDOC
  $stderr.puts(*msg)
end

#excerpt(comment) ⇒ Object

Returns an excerpt of the comment for usage in meta description tags



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# File 'lib/rdoc/generator/darkfish.rb', line 704

def excerpt(comment)
  text = case comment
  when RDoc::Comment
    comment.text
  else
    comment
  end

  # Match from a capital letter to the first period, discarding any links, so
  # that we don't end up matching badges in the README
  pattern = ParagraphExcerptRegexpUnicode
  begin
    first_paragraph_match = text.match(pattern)
  rescue Encoding::CompatibilityError
    # The doc is non-ASCII text and encoded in other than Unicode base encodings.
    raise if pattern == ParagraphExcerptRegexpOther
    pattern = ParagraphExcerptRegexpOther
    retry
  end
  return text[0...150].tr_s("\n", " ").squeeze(" ") unless first_paragraph_match

  extracted_text = first_paragraph_match[0]
  second_paragraph = text.match(pattern, first_paragraph_match.end(0))
  extracted_text << " " << second_paragraph[0] if second_paragraph

  extracted_text[0...150].tr_s("\n", " ").squeeze(" ")
end

#gen_sub_directories ⇒ Object

Create the directories the generated docs will live in if they don’t already exist.



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# File 'lib/rdoc/generator/darkfish.rb', line 185

def gen_sub_directories
  @outputdir.mkpath
end

#generate ⇒ Object

Build the initial indices and output objects based on an array of TopLevel objects containing the extracted information.



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# File 'lib/rdoc/generator/darkfish.rb', line 219

def generate
  setup

  write_style_sheet
  generate_index
  generate_class_files
  generate_file_files
  generate_table_of_contents
  @json_index.generate
  @json_index.generate_gzipped

  copy_static

rescue => e
  debug_msg "%s: %s\n  %s" % [
    e.class.name, e.message, e.backtrace.join("\n  ")
  ]

  raise
end

#generate_ancestor_list(ancestors, klass) ⇒ Object 



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# File 'lib/rdoc/generator/darkfish.rb', line 732

def generate_ancestor_list(ancestors, klass)
  return '' if ancestors.empty?

  ancestor = ancestors.shift
  content = +'<ul><li>'

  if ancestor.is_a?(RDoc::NormalClass)
    content << "<a href=\"#{klass.aref_to ancestor.path}\">#{ancestor.full_name}</a>"
  else
    content << ancestor.to_s
  end

  # Recursively call the method for the remaining ancestors
  content << generate_ancestor_list(ancestors, klass)

  content << '</li></ul>'
end

#generate_class(klass, template_file = nil) ⇒ Object

Generates a class file for klass



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# File 'lib/rdoc/generator/darkfish.rb', line 316

def generate_class(klass, template_file = nil)
  current = klass

  template_file ||= @template_dir + 'class.rhtml'

  debug_msg "  working on %s (%s)" % [klass.full_name, klass.path]
  out_file   = @outputdir + klass.path
  rel_prefix = @outputdir.relative_path_from out_file.dirname
  search_index_rel_prefix = rel_prefix
  search_index_rel_prefix += @asset_rel_path if @file_output

  asset_rel_prefix = rel_prefix + @asset_rel_path

  breadcrumb = # used in templates
  breadcrumb = generate_nesting_namespaces_breadcrumb(current, rel_prefix)

  @title = "#{klass.type} #{klass.full_name} - #{@options.title}"

  debug_msg "  rendering #{out_file}"
  render_template template_file, out_file do |io|
    here = binding
    # suppress 1.9.3 warning
    here.local_variable_set(:asset_rel_prefix, asset_rel_prefix)
    here
  end
end

#generate_class_files ⇒ Object

Generate a documentation file for each class and module



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# File 'lib/rdoc/generator/darkfish.rb', line 346

def generate_class_files
  template_file = @template_dir + 'class.rhtml'
  template_file = @template_dir + 'classpage.rhtml' unless
    template_file.exist?
  return unless template_file.exist?
  debug_msg "Generating class documentation in #{@outputdir}"

  current = nil

  @classes.each do |klass|
    current = klass

    generate_class klass, template_file
  end
rescue => e
  error = RDoc::Error.new \
    "error generating #{current.path}: #{e.message} (#{e.class})"
  error.set_backtrace e.backtrace

  raise error
end

#generate_class_index_content(classes, rel_prefix) ⇒ Object 



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# File 'lib/rdoc/generator/darkfish.rb', line 758

def generate_class_index_content(classes, rel_prefix)
  grouped_classes = group_classes_by_namespace_for_sidebar(classes)
  return '' unless top = grouped_classes[nil]

  solo = top.one? { |klass| klass.display? }
  traverse_classes(top, grouped_classes, rel_prefix, solo)
end

#generate_class_link(klass, rel_prefix) ⇒ Object 



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# File 'lib/rdoc/generator/darkfish.rb', line 750

def generate_class_link(klass, rel_prefix)
  if klass.display?
    %(<code><a href="#{rel_prefix}/#{klass.path}">#{klass.name}</a></code>)
  else
    %(<code>#{klass.name}</code>)
  end
end

#generate_file_files ⇒ Object

Generate a documentation file for each file



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# File 'lib/rdoc/generator/darkfish.rb', line 371

def generate_file_files
  page_file     = @template_dir + 'page.rhtml'
  fileinfo_file = @template_dir + 'fileinfo.rhtml'

  # for legacy templates
  filepage_file = @template_dir + 'filepage.rhtml' unless
    page_file.exist? or fileinfo_file.exist?

  return unless
    page_file.exist? or fileinfo_file.exist? or filepage_file.exist?

  debug_msg "Generating file documentation in #{@outputdir}"

  out_file = nil
  current = nil

  @files.each do |file|
    current = file

    if file.text? and page_file.exist? then
      generate_page file
      next
    end

    template_file = nil
    out_file = @outputdir + file.path
    debug_msg "  working on %s (%s)" % [file.full_name, out_file]
    rel_prefix = @outputdir.relative_path_from out_file.dirname
    search_index_rel_prefix = rel_prefix
    search_index_rel_prefix += @asset_rel_path if @file_output

    asset_rel_prefix = rel_prefix + @asset_rel_path

    unless filepage_file then
      if file.text? then
        next unless page_file.exist?
        template_file = page_file
        @title = file.page_name
      else
        next unless fileinfo_file.exist?
        template_file = fileinfo_file
        @title = "File: #{file.base_name}"
      end
    end

    @title += " - #{@options.title}"
    template_file ||= filepage_file

    render_template template_file, out_file do |io|
      here = binding
      # suppress 1.9.3 warning
      here.local_variable_set(:asset_rel_prefix, asset_rel_prefix)
      here.local_variable_set(:current, current)
      here
    end
  end
rescue => e
  error =
    RDoc::Error.new "error generating #{out_file}: #{e.message} (#{e.class})"
  error.set_backtrace e.backtrace

  raise error
end

#generate_index ⇒ Object

Generate an index page which lists all the classes which are documented.



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# File 'lib/rdoc/generator/darkfish.rb', line 281

def generate_index
  template_file = @template_dir + 'index.rhtml'
  return unless template_file.exist?

  debug_msg "Rendering the index page..."

  out_file = @base_dir + @options.op_dir + 'index.html'
  rel_prefix = @outputdir.relative_path_from out_file.dirname
  search_index_rel_prefix = rel_prefix
  search_index_rel_prefix += @asset_rel_path if @file_output

  asset_rel_prefix = rel_prefix + @asset_rel_path

  @title = @options.title
  @main_page = @files.find { |f| f.full_name == @options.main_page }

  render_template template_file, out_file do |io|
    here = binding
    # suppress 1.9.3 warning
    here.local_variable_set(:asset_rel_prefix, asset_rel_prefix)
    # some partials rely on the presence of current variable to render
    here.local_variable_set(:current, @main_page) if @main_page
    here
  end
rescue => e
  error = RDoc::Error.new \
    "error generating index.html: #{e.message} (#{e.class})"
  error.set_backtrace e.backtrace

  raise error
end

#generate_page(file) ⇒ Object

Generate a page file for file



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# File 'lib/rdoc/generator/darkfish.rb', line 438

def generate_page(file)
  template_file = @template_dir + 'page.rhtml'

  out_file = @outputdir + file.path
  debug_msg "  working on %s (%s)" % [file.full_name, out_file]
  rel_prefix = @outputdir.relative_path_from out_file.dirname
  search_index_rel_prefix = rel_prefix
  search_index_rel_prefix += @asset_rel_path if @file_output

  current          = file
  asset_rel_prefix = rel_prefix + @asset_rel_path

  @title = "#{file.page_name} - #{@options.title}"

  debug_msg "  rendering #{out_file}"
  render_template template_file, out_file do |io|
    here = binding
    # suppress 1.9.3 warning
    here.local_variable_set(:current, current)
    here.local_variable_set(:asset_rel_prefix, asset_rel_prefix)
    here
  end
end

#generate_servlet_not_found(message) ⇒ Object

Generates the 404 page for the RDoc servlet



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# File 'lib/rdoc/generator/darkfish.rb', line 465

def generate_servlet_not_found(message)
  template_file = @template_dir + 'servlet_not_found.rhtml'
  return unless template_file.exist?

  debug_msg "Rendering the servlet 404 Not Found page..."

  rel_prefix = rel_prefix = ''
  search_index_rel_prefix = rel_prefix
  search_index_rel_prefix += @asset_rel_path if @file_output

  asset_rel_prefix = ''

  @title = 'Not Found'

  render_template template_file do |io|
    here = binding
    # suppress 1.9.3 warning
    here.local_variable_set(:asset_rel_prefix, asset_rel_prefix)
    here
  end
rescue => e
  error = RDoc::Error.new \
    "error generating servlet_not_found: #{e.message} (#{e.class})"
  error.set_backtrace e.backtrace

  raise error
end

#generate_servlet_root(installed) ⇒ Object

Generates the servlet root page for the RDoc servlet



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# File 'lib/rdoc/generator/darkfish.rb', line 496

def generate_servlet_root(installed)
  template_file = @template_dir + 'servlet_root.rhtml'
  return unless template_file.exist?

  debug_msg 'Rendering the servlet root page...'

  rel_prefix = '.'
  asset_rel_prefix = rel_prefix
  search_index_rel_prefix = asset_rel_prefix
  search_index_rel_prefix += @asset_rel_path if @file_output

  @title = 'Local RDoc Documentation'

  render_template template_file do |io| binding end
rescue => e
  error = RDoc::Error.new \
    "error generating servlet_root: #{e.message} (#{e.class})"
  error.set_backtrace e.backtrace

  raise error
end

#generate_table_of_contents ⇒ Object

Generate an index page which lists all the classes which are documented.



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# File 'lib/rdoc/generator/darkfish.rb', line 521

def generate_table_of_contents
  template_file = @template_dir + 'table_of_contents.rhtml'
  return unless template_file.exist?

  debug_msg "Rendering the Table of Contents..."

  out_file = @outputdir + 'table_of_contents.html'
  rel_prefix = @outputdir.relative_path_from out_file.dirname
  search_index_rel_prefix = rel_prefix
  search_index_rel_prefix += @asset_rel_path if @file_output

  asset_rel_prefix = rel_prefix + @asset_rel_path

  @title = "Table of Contents - #{@options.title}"

  render_template template_file, out_file do |io|
    here = binding
    # suppress 1.9.3 warning
    here.local_variable_set(:asset_rel_prefix, asset_rel_prefix)
    here
  end
rescue => e
  error = RDoc::Error.new \
    "error generating table_of_contents.html: #{e.message} (#{e.class})"
  error.set_backtrace e.backtrace

  raise error
end

#get_sorted_module_list(classes) ⇒ Object

Return a list of the documented modules sorted by salience first, then by name.



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# File 'lib/rdoc/generator/darkfish.rb', line 272

def get_sorted_module_list(classes)
  classes.select do |klass|
    klass.display?
  end.sort
end

#group_classes_by_namespace_for_sidebar(classes) ⇒ Object 



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# File 'lib/rdoc/generator/darkfish.rb', line 783

def group_classes_by_namespace_for_sidebar(classes)
  grouped_classes = classes.group_by do |klass|
    klass.full_name[/\A[^:]++(?:::[^:]++(?=::))*+(?=::[^:]*+\z)/]
  end.select do |_, klasses|
    klasses.any?(&:display?)
  end

  grouped_classes.values.each(&:uniq!)
  grouped_classes
end

#install_rdoc_static_file(source, destination, options) ⇒ Object

:nodoc:



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# File 'lib/rdoc/generator/darkfish.rb', line 550

def install_rdoc_static_file(source, destination, options) # :nodoc:
  return unless source.exist?

  begin
    FileUtils.mkdir_p File.dirname(destination), **options

    begin
      FileUtils.ln source, destination, **options
    rescue Errno::EEXIST
      FileUtils.rm destination
      retry
    end
  rescue
    FileUtils.cp source, destination, **options
  end
end

#render(file_name) ⇒ Object

Renders the ERb contained in file_name relative to the template directory and returns the result based on the current context.



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# File 'lib/rdoc/generator/darkfish.rb', line 610

def render(file_name)
  template_file = @template_dir + file_name

  template = template_for template_file, false, RDoc::ERBPartial

  template.filename = template_file.to_s

  template.result @context
end

#render_template(template_file, out_file = nil) ⇒ Object

Load and render the erb template in the given template_file and write it out to out_file.

Both template_file and out_file should be Pathname-like objects.

An io will be yielded which must be captured by binding in the caller.



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# File 'lib/rdoc/generator/darkfish.rb', line 628

def render_template(template_file, out_file = nil) # :yield: io
  io_output = out_file && !@dry_run && @file_output
  erb_klass = io_output ? RDoc::ERBIO : ERB

  template = template_for template_file, true, erb_klass

  if io_output then
    debug_msg "Outputting to %s" % [out_file.expand_path]

    out_file.dirname.mkpath
    out_file.open 'w', 0644 do |io|
      io.set_encoding @options.encoding

      @context = yield io

      template_result template, @context, template_file
    end
  else
    @context = yield nil

    output = template_result template, @context, template_file

    debug_msg "  would have written %d characters to %s" % [
      output.length, out_file.expand_path
    ] if @dry_run

    output
  end
end

#setup ⇒ Object

Prepares for generation of output from the current directory



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# File 'lib/rdoc/generator/darkfish.rb', line 570

def setup
  return if instance_variable_defined? :@outputdir

  @outputdir = Pathname.new(@options.op_dir).expand_path @base_dir

  return unless @store

  @classes = @store.all_classes_and_modules.sort
  @files   = @store.all_files.sort
  @methods = @classes.flat_map { |m| m.method_list }.sort
  @modsort = get_sorted_module_list @classes
end

#template_for(file, page = true, klass = ERB) ⇒ Object

Retrieves a cache template for file, if present, or fills the cache.



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# File 'lib/rdoc/generator/darkfish.rb', line 675

def template_for(file, page = true, klass = ERB)
  template = @template_cache[file]

  return template if template

  if page then
    template = assemble_template file
    erbout = 'io'
  else
    template = file.read
    template = template.encode @options.encoding

    file_var = File.basename(file).sub(/\..*/, '')

    erbout = "_erbout_#{file_var}"
  end

  template = klass.new template, trim_mode: '-', eoutvar: erbout
  @template_cache[file] = template
  template
end

#template_result(template, context, template_file) ⇒ Object

Creates the result for template with context. If an error is raised a Pathname template_file will indicate the file where the error occurred.



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# File 'lib/rdoc/generator/darkfish.rb', line 662

def template_result(template, context, template_file)
  template.filename = template_file.to_s
  template.result context
rescue NoMethodError => e
  raise RDoc::Error, "Error while evaluating %s: %s" % [
    template_file.expand_path,
    e.message,
  ], e.backtrace
end

#traverse_classes(klasses, grouped_classes, rel_prefix, solo = false) ⇒ Object 



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# File 'lib/rdoc/generator/darkfish.rb', line 766

def traverse_classes(klasses, grouped_classes, rel_prefix, solo = false)
  content = +'<ul class="link-list">'

  klasses.each do |index_klass|
    if children = grouped_classes[index_klass.full_name]
      content << %(<li><details#{solo ? ' open' : ''}><summary>#{generate_class_link(index_klass, rel_prefix)}</summary>)
      content << traverse_classes(children, grouped_classes, rel_prefix)
      content << '</details></li>'
      solo = false
    elsif index_klass.display?
      content << %(<li>#{generate_class_link(index_klass, rel_prefix)}</li>)
    end
  end

  "#{content}</ul>"
end

#write_style_sheet ⇒ Object

Copy over the stylesheet into the appropriate place in the output directory.



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# File 'lib/rdoc/generator/darkfish.rb', line 193

def write_style_sheet
  debug_msg "Copying static files"
  options = { :verbose => $DEBUG_RDOC, :noop => @dry_run }

  BUILTIN_STYLE_ITEMS.each do |item|
    install_rdoc_static_file @template_dir + item, "./#{item}", options
  end

  unless @options.template_stylesheets.empty?
    FileUtils.cp @options.template_stylesheets, '.', **options
  end

  Dir[(@template_dir + "{js,images}/**/*").to_s].each do |path|
    next if File.directory? path
    next if File.basename(path) =~ /^\./

    dst = Pathname.new(path).relative_path_from @template_dir

    install_rdoc_static_file @template_dir + path, dst, options
  end
end