Module: Jazzy::DocBuilder

Defined in:
lib/jazzy/doc_builder.rb,
lib/jazzy/docset_builder.rb

Overview

This module handles HTML generation, file writing, asset copying, and generally building docs given sourcekitten output

Defined Under Namespace

Classes: DocsetBuilder

Class Method Summary collapse

Class Method Details

.build(options) ⇒ Object

Build documentation from the given options

Parameters:



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# File 'lib/jazzy/doc_builder.rb', line 70

def self.build(options)
  module_jsons = options.module_configs.map do |module_config|
    if module_config.podspec_configured
      # Config#validate guarantees not multi-module here
      pod_documenter = PodspecDocumenter.new(options.podspec)
      pod_documenter.sourcekitten_output(options)
    elsif !module_config.sourcekitten_sourcefile.empty?
      "[#{module_config.sourcekitten_sourcefile.map(&:read).join(',')}]"
    elsif module_config.swift_build_tool == :symbolgraph
      SymbolGraph.build(module_config)
    else
      Dir.chdir(module_config.source_directory) do
        arguments = SourceKitten.arguments_from_options(module_config)
        SourceKitten.run_sourcekitten(arguments)
      end
    end
  end

  build_docs_for_sourcekitten_output(module_jsons, options)
end

.build_docs(output_dir, source_module) ⇒ Object

Build & write HTML docs to disk from structured docs array

Parameters:

  • output_dir (String) —

    Root directory to write docs

  • source_module (SourceModule) —

    All info to generate docs



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# File 'lib/jazzy/doc_builder.rb', line 94

def self.build_docs(output_dir, source_module)
  each_doc(output_dir, source_module.docs) do |doc, path|
    prepare_output_dir(path.parent, false)
    depth = path.relative_path_from(output_dir).each_filename.count - 1
    path_to_root = '../' * depth
    path.open('w') do |file|
      file.write(document(source_module, doc, path_to_root))
    end
  end
end

.build_docs_for_sourcekitten_output(sourcekitten_output, options) ⇒ Object

Build docs given sourcekitten output

Parameters:

  • sourcekitten_output (Array<String>) —

    Output of sourcekitten command for each module

  • options (Config) —

    Build options



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# File 'lib/jazzy/doc_builder.rb', line 156

def self.build_docs_for_sourcekitten_output(sourcekitten_output, options)
  (docs, stats) = SourceKitten.parse(
    sourcekitten_output,
    options,
    DocumentationGenerator.source_docs,
  )

  prepare_output_dir(options.output, options.clean)

  stats.report

  unless options.skip_documentation
    build_site(docs, stats.doc_coverage, options)
  end

  write_lint_report(stats.undocumented_decls, options)
end

.build_site(docs, coverage, options) ⇒ Object 



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# File 'lib/jazzy/doc_builder.rb', line 120

def self.build_site(docs, coverage, options)
  warn 'building site'

  structure = doc_structure_for_docs(docs)

  docs << SourceDocument.make_index(options.readme_path)

  output_dir = options.output

  docset_builder = DocsetBuilder.new(output_dir)

  source_module = SourceModule.new(docs, structure, coverage, docset_builder)

  build_docs(output_dir, source_module)

  unless options.disable_search
    warn 'building search index'
    SearchBuilder.build(source_module, output_dir)
  end

  copy_extensions(source_module, output_dir)
  copy_theme_assets(output_dir)

  docset_builder.build!(source_module.all_declarations)

  generate_badge(source_module.doc_coverage, options)

  friendly_path = relative_path_if_inside(output_dir, Pathname.pwd)
  puts "jam out ♪♫ to your fresh new docs in `#{friendly_path}`"

  source_module
end

.children_for_doc(doc) ⇒ Object 



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# File 'lib/jazzy/doc_builder.rb', line 54

def self.children_for_doc(doc)
  doc.children
    .sort_by { |c| [c.nav_order, c.name, c.usr || ''] }
    .flat_map do |child|
    # FIXME: include arbitrarily nested extensible types
    [{ name: child.name, url: child.url }] +
      Array(child.children.select do |sub_child|
        sub_child.type.swift_extensible? || sub_child.type.extension?
      end).map do |sub_child|
        { name: "– #{sub_child.name}", url: sub_child.url }
      end
  end
end

.color_for_coverage(coverage) ⇒ Object

Returns the appropriate color for the provided percentage, used for generating a badge on shields.io

Parameters:

  • coverage (Number) —

    The documentation coverage percentage



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# File 'lib/jazzy/doc_builder.rb', line 286

def self.color_for_coverage(coverage)
  if coverage < 10
    'e05d44' # red
  elsif coverage < 30
    'fe7d37' # orange
  elsif coverage < 60
    'dfb317' # yellow
  elsif coverage < 85
    'a4a61d' # yellowgreen
  elsif coverage < 90
    '97CA00' # green
  else
    '4c1' # brightgreen
  end
end

.copy_extension(name, destination) ⇒ Object 



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# File 'lib/jazzy/doc_builder.rb', line 230

def self.copy_extension(name, destination)
  ext_directory = Pathname(__dir__) / 'extensions' / name
  FileUtils.cp_r(ext_directory.children, destination)
end

.copy_extensions(source_module, destination) ⇒ Object 



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# File 'lib/jazzy/doc_builder.rb', line 223

def self.copy_extensions(source_module, destination)
  if source_host = source_module.host&.extension
    copy_extension(source_host, destination)
  end
  copy_extension('katex', destination) if Markdown.has_math
end

.copy_theme_assets(destination) ⇒ Object 



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# File 'lib/jazzy/doc_builder.rb', line 212

def self.copy_theme_assets(destination)
  assets_directory = Config.instance.theme_directory + 'assets'
  FileUtils.cp_r(assets_directory.children, destination)
  Pathname.glob(destination + 'css/**/*.scss').each do |scss|
    css = SassC::Engine.new(scss.read).render
    css_filename = scss.sub(/\.scss$/, '')
    css_filename.open('w') { |f| f.write(css) }
    FileUtils.rm scss
  end
end

.doc_structure_for_docs(docs) ⇒ Array

Generate doc structure to be used in sidebar navigation

Returns:

  • (Array) —

    doc structure comprised of section names & child names & URLs



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# File 'lib/jazzy/doc_builder.rb', line 34

def self.doc_structure_for_docs(docs)
  docs
    .map do |doc|
      children = children_for_doc(doc)
      {
        section: doc.name,
        url: doc.url,
        children: children,
      }
    end
    .select do |structure|
      if Config.instance.hide_unlisted_documentation
        unlisted_prefix = Config.instance.custom_categories_unlisted_prefix
        structure[:section] != "#{unlisted_prefix}Guides"
      else
        true
      end
    end
end

.document(source_module, doc_model, path_to_root) ⇒ Object

rubocop:disable Metrics/MethodLength Build Mustache document from single parsed decl

Parameters:

  • module-wide (SourceModule) —

    settings

  • doc_model (Hash) —

    Parsed doc. @see SourceKitten.parse

  • path_to_root (String) 


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# File 'lib/jazzy/doc_builder.rb', line 423

def self.document(source_module, doc_model, path_to_root)
  if doc_model.type.markdown?
    return document_markdown(source_module, doc_model, path_to_root)
  end

  overview = (doc_model.abstract || '') + (doc_model.discussion || '')
  alternative_abstract = doc_model.alternative_abstract
  if alternative_abstract
    overview = render(doc_model, alternative_abstract) + overview
  end

  doc = new_document(source_module, doc_model)
  doc[:name] = doc_model.name
  doc[:kind] = doc_model.type.name
  doc[:dash_type] = doc_model.type.dash_type
  doc[:declaration] = doc_model.display_declaration
  doc[:language] = doc_model.display_language
  doc[:other_language_declaration] =
    doc_model.display_other_language_declaration
  doc[:overview] = overview
  doc[:parameters] = doc_model.parameters
  doc[:return] = doc_model.return
  doc[:tasks] = render_tasks(source_module, doc_model.children)
  doc[:path_to_root] = path_to_root
  doc[:deprecation_message] = doc_model.deprecation_message
  doc[:unavailable_message] = doc_model.unavailable_message
  doc[:usage_discouraged] = doc_model.usage_discouraged?
  doc.render.gsub(ELIDED_AUTOLINK_TOKEN, path_to_root)
end

.document_markdown(source_module, doc_model, path_to_root) ⇒ Object

Build Mustache document from a markdown source file

Parameters:

  • module-wide (SourceModule) —

    settings

  • doc_model (Hash) —

    Parsed doc. @see SourceKitten.parse

  • path_to_root (String) 


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# File 'lib/jazzy/doc_builder.rb', line 273

def self.document_markdown(source_module, doc_model, path_to_root)
  doc = new_document(source_module, doc_model)
  name = doc_model.readme? ? source_module.readme_title : doc_model.name
  doc[:name] = name
  doc[:overview] = render(doc_model, doc_model.content(source_module))
  doc[:path_to_root] = path_to_root
  doc[:hide_name] = true
  doc.render.gsub(ELIDED_AUTOLINK_TOKEN, path_to_root)
end

.each_doc(output_dir, docs, &block) ⇒ Object 



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# File 'lib/jazzy/doc_builder.rb', line 105

def self.each_doc(output_dir, docs, &block)
  docs.each do |doc|
    next unless doc.render_as_page?

    # Filepath is relative to documentation root:
    path = output_dir + doc.filepath
    block.call(doc, path)
    each_doc(
      output_dir,
      doc.children,
      &block
    )
  end
end

.generate_badge(coverage, options) ⇒ Object

Generates an SVG similar to those from shields.io displaying the documentation percentage

Parameters:

  • coverage (Number) —

    The documentation coverage percentage

  • options (Config) —

    Build options



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# File 'lib/jazzy/doc_builder.rb', line 308

def self.generate_badge(coverage, options)
  return if options.hide_documentation_coverage

  coverage_length = coverage.to_s.size.succ
  percent_string_length = coverage_length * 80 + 10
  percent_string_offset = coverage_length * 40 + 975
  width = coverage_length * 8 + 104
  svg = <<-SVG.gsub(/^ {8}/, '')
    <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="#{width}" height="20">
      <linearGradient id="b" x2="0" y2="100%">
        <stop offset="0" stop-color="#bbb" stop-opacity=".1"/>
        <stop offset="1" stop-opacity=".1"/>
      </linearGradient>
      <clipPath id="a">
        <rect width="#{width}" height="20" rx="3" fill="#fff"/>
      </clipPath>
      <g clip-path="url(#a)">
        <path fill="#555" d="M0 0h93v20H0z"/>
        <path fill="##{color_for_coverage(coverage)}" d="M93 0h#{percent_string_length / 10 + 10}v20H93z"/>
        <path fill="url(#b)" d="M0 0h#{width}v20H0z"/>
      </g>
      <g fill="#fff" text-anchor="middle" font-family="DejaVu Sans,Verdana,Geneva,sans-serif" font-size="110">
        <text x="475" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="830">
          documentation
        </text>
        <text x="475" y="140" transform="scale(.1)" textLength="830">
          documentation
        </text>
        <text x="#{percent_string_offset}" y="150" fill="#010101" fill-opacity=".3" transform="scale(.1)" textLength="#{percent_string_length}">
          #{coverage}%
        </text>
        <text x="#{percent_string_offset}" y="140" transform="scale(.1)" textLength="#{percent_string_length}">
          #{coverage}%
        </text>
      </g>
    </svg>
  SVG

  badge_output = options.output + 'badge.svg'
  File.open(badge_output, 'w') { |f| f << svg }
end

.make_breadcrumbs(doc_model) ⇒ Object

Breadcrumbs for a page - doesn’t include the top ‘readme’ crumb



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# File 'lib/jazzy/doc_builder.rb', line 455

def self.make_breadcrumbs(doc_model)
  return [] if doc_model.readme?

  docs_path = doc_model.docs_path
  breadcrumbs = docs_path.map do |doc|
    {
      name: doc.name,
      url: doc.url,
      last: doc == doc_model,
    }
  end

  return breadcrumbs if breadcrumbs.count == 1

  # Add the module name to the outer type if not clear from context
  if docs_path[1].ambiguous_module_name?(docs_path[0].name)
    breadcrumbs[1][:name] = docs_path[1].fully_qualified_module_name
  end

  breadcrumbs
end

.make_task(mark, uid, items, doc_model) ⇒ Object

rubocop:enable Metrics/MethodLength



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# File 'lib/jazzy/doc_builder.rb', line 387

def self.make_task(mark, uid, items, doc_model)
  {
    name: mark.name,
    name_html: (render_inline(doc_model, mark.name) if mark.name),
    uid: ERB::Util.url_encode(uid),
    items: items,
    pre_separator: mark.has_start_dash,
    post_separator: mark.has_end_dash,
  }
end

.new_document(source_module, doc_model) ⇒ Object

Build Mustache document - common fields between page types



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# File 'lib/jazzy/doc_builder.rb', line 246

def self.new_document(source_module, doc_model)
  Doc.new.tap do |doc|
    doc[:custom_head] = Config.instance.custom_head
    doc[:disable_search] = Config.instance.disable_search
    doc[:doc_coverage] = source_module.doc_coverage unless
      Config.instance.hide_documentation_coverage
    doc[:structure] = source_module.doc_structure
    doc[:readme_title] = source_module.readme_title
    doc[:module_name] = doc[:readme_title]
    doc[:author_name] = source_module.author_name
    if source_host = source_module.host
      doc[:source_host_name] = source_host.name
      doc[:source_host_url] = source_host.url
      doc[:source_host_image] = source_host.image
      doc[:source_host_item_url] = source_host.item_url(doc_model)
      doc[:github_url] = doc[:source_host_url]
      doc[:github_token_url] = doc[:source_host_item_url]
    end
    doc[:dash_url] = source_module.dash_feed_url
    doc[:breadcrumbs] = make_breadcrumbs(doc_model)
  end
end

.prepare_output_dir(output_dir, clean) ⇒ Object

mkdir -p output directory and clean if option is set



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# File 'lib/jazzy/doc_builder.rb', line 26

def self.prepare_output_dir(output_dir, clean)
  FileUtils.rm_r output_dir if clean && output_dir.directory?
  FileUtils.mkdir_p output_dir
end

.relative_path_if_inside(path, base_path) ⇒ Object 



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# File 'lib/jazzy/doc_builder.rb', line 174

def self.relative_path_if_inside(path, base_path)
  relative = path.relative_path_from(base_path)
  if relative.to_path =~ %r{/^..(/|$)/}
    path
  else
    relative
  end
end

.render(doc_model, markdown) ⇒ Object 



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# File 'lib/jazzy/doc_builder.rb', line 235

def self.render(doc_model, markdown)
  html = Markdown.render(markdown)
  SourceKitten.autolink_document(html, doc_model)
end

.render_inline(doc_model, markdown) ⇒ Object 



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# File 'lib/jazzy/doc_builder.rb', line 240

def self.render_inline(doc_model, markdown)
  html = Markdown.render_inline(markdown)
  SourceKitten.autolink_document(html, doc_model)
end

.render_item(item, source_module) ⇒ Object

Build mustache item for a top-level doc rubocop:disable Metrics/MethodLength

Parameters:

  • item (Hash) —

    Parsed doc child item

  • options (Config) —

    Build options



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# File 'lib/jazzy/doc_builder.rb', line 355

def self.render_item(item, source_module)
  # Combine abstract and discussion into abstract
  abstract = (item.abstract || '') + (item.discussion || '')
  source_host_item_url = source_module.host&.item_url(item)
  {
    name: item.name,
    name_html: item.name.gsub(':', ':<wbr>'),
    abstract: abstract,
    declaration: item.display_declaration,
    language: item.display_language,
    other_language_declaration: item.display_other_language_declaration,
    usr: item.usr,
    dash_type: item.type.dash_type,
    source_host_item_url: source_host_item_url,
    github_token_url: source_host_item_url,
    default_impl_abstract: item.default_impl_abstract,
    from_protocol_extension: item.from_protocol_extension,
    return: item.return,
    parameters: (item.parameters if item.parameters.any?),
    url: (item.url if item.render_as_page?),
    start_line: item.start_line,
    end_line: item.end_line,
    direct_link: item.omit_content_from_parent?,
    deprecation_message: item.deprecation_message,
    unavailable_message: item.unavailable_message,
    usage_discouraged: item.usage_discouraged?,
    async: item.async,
    declaration_note: item.declaration_note,
  }
end

.render_tasks(source_module, children) ⇒ Object

Render tasks for Mustache document

Parameters:

  • options (Config) —

    Build options

  • doc_model (Hash) —

    Parsed doc. @see SourceKitten.parse



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# File 'lib/jazzy/doc_builder.rb', line 401

def self.render_tasks(source_module, children)
  marks = children.map(&:mark).uniq.compact
  mark_names_counts = {}
  marks.map do |mark|
    mark_children = children.select { |child| child.mark == mark }
    items = mark_children.map { |child| render_item(child, source_module) }
    uid = (mark.name || 'Unnamed').to_s
    if mark_names_counts.key?(uid)
      mark_names_counts[uid] += 1
      uid += (mark_names_counts[uid]).to_s
    else
      mark_names_counts[uid] = 1
    end
    make_task(mark, uid, items, mark_children.first)
  end
end

.undocumented_warnings(decls) ⇒ Object 



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# File 'lib/jazzy/doc_builder.rb', line 183

def self.undocumented_warnings(decls)
  decls.map do |decl|
    {
      file: decl.file,
      line: decl.start_line || decl.line,
      symbol: decl.fully_qualified_name,
      symbol_kind: decl.type.kind,
      warning: 'undocumented',
    }
  end
end

.write_lint_report(undocumented, options) ⇒ Object 



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# File 'lib/jazzy/doc_builder.rb', line 195

def self.write_lint_report(undocumented, options)
  (options.output + 'undocumented.json').open('w') do |f|
    warnings = undocumented_warnings(undocumented)

    lint_report = {
      warnings: warnings.sort_by do |w|
        [w[:file] || Pathname(''),
         w[:line] || 0,
         w[:symbol],
         w[:symbol_kind]]
      end,
      source_directory: options.source_directory,
    }
    f.write(JSON.pretty_generate(lint_report))
  end
end