Class: Rigor::ModuleGraph::CLI::View

Inherits:
Object
  • Object
show all
Includes:
EdgeFilters
Defined in:
lib/rigor/module_graph/cli.rb

Overview

‘view` is the one-shot entry point: from the project root type `rigor-module-graph` and it analyses the current directory, writes a self-contained Mermaid HTML report, and opens it in a browser.

Defaults are tuned to need zero flags on a Rails-shaped project. The lower-level subcommands (collect / dot / mermaid) stay available for piped use.

Defined Under Namespace

Classes: RenderError

Constant Summary collapse

DEFAULT_OUTPUT = 
".rigor/module_graph/view.html"
AUTO_COLLAPSE_THRESHOLD =

An auto-collapsed cluster needs at least this many members before it’s worth folding. Three is the sweet spot empirically: a 1500-edge Rails app collapses into roughly the right shape, and a small fixture still leaves trivial Foo / Bar pairs uncollapsed.

3
SUBTITLE_COLLAPSE_PREVIEW =

Cap the visible “collapsed: …” trailer in the subtitle so it doesn’t grow into an unreadable wall on large projects.

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FORMATS =

The supported output formats, in roughly increasing “wrapping” order: html embeds mermaid; svg embeds dot; the rest are raw text.

%w[html mermaid dot svg class-diagram].freeze
DEFAULT_HTML_OUTPUT =

Default file destination when format is html and the user didn’t override with -o. Non-html formats default to stdout.

".rigor/module_graph/view.html"

Constants included from EdgeFilters

EdgeFilters::VALID_CONFIDENCES, EdgeFilters::VALID_DIRECTIONS, EdgeFilters::VALID_EDGE_SCOPES, EdgeFilters::VALID_KINDS

Instance Method Summary collapse

Methods included from EdgeFilters

#add_filter_options, #apply_filters, #validate!

Constructor Details

#initialize(stdout:, stderr:) ⇒ View

Returns a new instance of View.



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# File 'lib/rigor/module_graph/cli.rb', line 361

def initialize(stdout:, stderr:)
  @stdout = stdout
  @stderr = stderr
  @options = {
    format: "html",
    output: nil,
    cache: false,
    rigor_cmd: ENV.fetch("RIGOR_CMD", "rigor"),
    open: true,
    collapse: nil,
    kinds: nil,
    confidences: nil,
    from: nil,
    depth: nil,
    direction: :both,
    edge_scope: :cluster,
    package: nil,
    include_methods: true,
    include_attributes: true,
    visibilities: %w[public protected private]
  }
end

Instance Method Details

#build_parser ⇒ Object 



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# File 'lib/rigor/module_graph/cli.rb', line 510

def build_parser
  OptionParser.new do |opts|
    opts.banner = "Usage: rigor-module-graph view [options] [PATHS...]"
    opts.on("--output FORMAT", FORMATS,
            "Output format (#{FORMATS.join("|")}; default: html). " \
            "Non-html streams to stdout unless -o is given.") do |fmt|
      @options[:format] = fmt
    end
    opts.on("-o", "--save PATH",
            "Write to PATH instead of stdout / the default html location") do |path|
      @options[:output] = path
    end
    opts.on("--[no-]open",
            "Open the html in a browser (default: true; ignored for non-html)") do |flag|
      @options[:open] = flag
    end
    opts.on("--collapse PREFIXES", Array,
            "Manual collapse list (disables auto-detection)") do |prefixes|
      @options[:collapse] = prefixes
    end
    opts.on("--no-collapse",
            "Disable namespace collapse entirely") do
      @options[:collapse] = []
    end
    opts.on("--no-methods",
            "[class-diagram] Don't render methods inside class bodies") do
      @options[:include_methods] = false
    end
    opts.on("--no-attributes",
            "[class-diagram] Don't render attributes inside class bodies") do
      @options[:include_attributes] = false
    end
    opts.on("--public-only",
            "[class-diagram] Only show public members") do
      @options[:visibilities] = %w[public]
    end
    opts.on("--no-private",
            "[class-diagram] Hide private members") do
      @options[:visibilities] = %w[public protected]
    end
    opts.on("--package",
            "Cluster by Packwerk packages discovered in cwd") do
      @options[:package] ||= "."
    end
    opts.on("--package-root PATH",
            "Cluster by Packwerk packages discovered under PATH") do |root|
      @options[:package] = root
    end
    opts.on("--[no-]cache",
            "Pass --cache / --no-cache to rigor (default: --no-cache)") do |cache|
      @options[:cache] = cache
    end
    opts.on("--rigor-cmd CMD",
            "Override the rigor binary (default: rigor or $RIGOR_CMD)") do |cmd|
      @options[:rigor_cmd] = cmd
    end
    add_filter_options(opts, @options)
    opts.on("-h", "--help") do
      @stdout.puts opts
      exit 0
    end
  end
end

#deliver(payload, binary:, edges:) ⇒ Object

Writes the payload to the configured destination and opens the browser when the html-default flow applies.



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# File 'lib/rigor/module_graph/cli.rb', line 478

def deliver(payload, binary:, edges:)
  destination = effective_output_path
  if destination.nil?
    if binary
      @stdout.binmode
    end
    @stdout.write(payload)
    return
  end

  dir = File.dirname(destination)
  FileUtils.mkdir_p(dir) unless dir.empty? || dir == "."
  mode = binary ? "wb" : "w"
  File.open(destination, mode) { |io| io.write(payload) }
  @stderr.puts "rigor-module-graph: wrote #{edges.size} edge(s) to #{destination}"
  open_in_browser(destination) if html? && @options[:open]
end

#effective_collapse(edges) ⇒ Object

Choose collapse prefixes. Explicit ‘–collapse` wins; otherwise we auto-pick top-level namespaces that have at least AUTO_COLLAPSE_THRESHOLD distinct nodes under them, which is what most graphs benefit from.



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# File 'lib/rigor/module_graph/cli.rb', line 578

def effective_collapse(edges)
  return @options[:collapse] unless @options[:collapse].nil?

  counts = Hash.new { |h, k| h[k] = Set.new }
  edges.each do |edge|
    [edge.from, edge.to].each do |name|
      head, tail = name.split("::", 2)
      # Only collapse on the top-level segment so a deep
      # tree like `Billing::Invoice::Line` still feeds into
      # the `Billing` cluster — picking inner prefixes
      # would compete with each other and produce nested
      # clusters that hurt readability.
      next if tail.nil? || tail.empty?
      # Absolute paths (`::Foo::Bar`) split with an empty
      # head; skip them so they don't surface as the bogus
      # `""` collapse target.
      next if head.empty?

      counts[head] << name
    end
  end
  counts.select { |_, members| members.size >= AUTO_COLLAPSE_THRESHOLD }.keys.sort
end

#effective_output_path ⇒ Object

Resolve the output path. ‘-o PATH` always wins. With no explicit path, html falls back to `.rigor/module_graph/ view.html`; every other format streams to stdout.



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# File 'lib/rigor/module_graph/cli.rb', line 499

def effective_output_path
  return @options[:output] if @options[:output]
  return DEFAULT_HTML_OUTPUT if html?

  nil
end

#graphviz_svg(dot_source) ⇒ Object

Shell out to Graphviz ‘dot -Tsvg`. Surfacing the binary check as a clear error keeps the message friendlier than the raw `Errno::ENOENT` Open3 would propagate.



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# File 'lib/rigor/module_graph/cli.rb', line 464

def graphviz_svg(dot_source)
  stdout_str, stderr_str, status = Open3.capture3("dot", "-Tsvg", stdin_data: dot_source)
  unless status.success?
    raise RenderError, "graphviz `dot` failed (exit #{status.exitstatus}): #{stderr_str}"
  end

  stdout_str
rescue Errno::ENOENT
  raise RenderError, "graphviz `dot` not found on PATH; install via " \
                     "`brew install graphviz` (macOS) or your distro's package manager"
end

#html? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rigor/module_graph/cli.rb', line 506

def html?
  @options[:format] == "html"
end

#open_in_browser(path) ⇒ Object 



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# File 'lib/rigor/module_graph/cli.rb', line 640

def open_in_browser(path)
  opener = ENV["BROWSER"] ||
           (RUBY_PLATFORM.include?("darwin") ? "open" : "xdg-open")
  system(opener, path)
rescue StandardError => e
  @stderr.puts "rigor-module-graph view: could not open #{path}: #{e.message}"
end

#package_groups(edges) ⇒ Object 



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# File 'lib/rigor/module_graph/cli.rb', line 627

def package_groups(edges)
  return nil unless @options[:package]

  overlay = PackwerkOverlay.discover(@options[:package])
  unless overlay.any?
    @stderr.puts "rigor-module-graph view: no package.yml found under " \
                 "#{@options[:package].inspect}; falling back to namespace collapse"
    return nil
  end

  overlay.groups_for(edges)
end

#render_payload(edges, nodes, collapse, groups) ⇒ Object

Builds the rendered payload for the chosen format and signals whether the bytes are binary (svg via Graphviz can return a non-UTF-8 image stream).



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# File 'lib/rigor/module_graph/cli.rb', line 418

def render_payload(edges, nodes, collapse, groups)
  case @options[:format]
  when "html"
    mermaid = Mermaid.render(edges, collapse: collapse, groups: groups)
    html = HtmlView.render(
      title: "rigor-module-graph: #{File.basename(Dir.pwd)}",
      subtitle: render_subtitle(edges, collapse, groups),
      mermaid_source: mermaid
    )
    [html, false]
  when "mermaid"
    [Mermaid.render(edges, collapse: collapse, groups: groups), false]
  when "dot"
    [Dot.render(edges, collapse: collapse, groups: groups), false]
  when "svg"
    [graphviz_svg(Dot.render(edges, collapse: collapse, groups: groups)), true]
  when "class-diagram"
    [
      Uml::ClassDiagram.render(
        edges, restrict_nodes_to_edges(nodes, edges),
        include_methods: @options[:include_methods],
        include_attributes: @options[:include_attributes],
        visibilities: @options[:visibilities]
      ),
      false
    ]
  end
end

#render_subtitle(edges, collapse, groups) ⇒ Object 



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# File 'lib/rigor/module_graph/cli.rb', line 602

def render_subtitle(edges, collapse, groups)
  parts = ["#{edges.size} edge(s) from #{Dir.pwd}"]
  if @options[:from]
    from_part = +"from: #{Array(@options[:from]).join(", ")}"
    from_part << " (depth=#{@options[:depth]})" if @options[:depth]
    from_part << " [#{@options[:direction]}]" unless @options[:direction] == :both
    parts << from_part
  end
  if groups
    uniq_packages = groups.values.uniq.sort
    preview = uniq_packages.first(SUBTITLE_COLLAPSE_PREVIEW)
    label = +"packages: #{preview.join(", ")}"
    if uniq_packages.size > preview.size
      label << " (+#{uniq_packages.size - preview.size} more)"
    end
    parts << label
  elsif !collapse.empty?
    preview = collapse.first(SUBTITLE_COLLAPSE_PREVIEW)
    label = +"collapsed: #{preview.join(", ")}"
    label << " (+#{collapse.size - preview.size} more)" if collapse.size > preview.size
    parts << label
  end
  parts.join(" · ")
end

#restrict_nodes_to_edges(nodes, edges) ⇒ Object

When the user narrows the edge set with ‘–from` / `–kind` / `–confidence`, the class diagram should only show classes that participate in those edges — otherwise every constant declared in the project still shows up as a body-less class. The filter is a no-op when the edge set already covers every node (no filters applied).



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# File 'lib/rigor/module_graph/cli.rb', line 453

def restrict_nodes_to_edges(nodes, edges)
  return nodes if edges.empty?

  visible = Set.new
  edges.each { |edge| visible << edge.from << edge.to }
  nodes.select { |node| visible.include?(node.owner) || visible.include?(node.name) }
end

#run(argv) ⇒ Object 



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# File 'lib/rigor/module_graph/cli.rb', line 384

def run(argv)
  parser = build_parser
  paths = parser.parse(argv)

  runner = RigorRunner.new(rigor_cmd: @options[:rigor_cmd], cache: @options[:cache])
  edges, nodes = runner.analyse(paths)
  edges = apply_filters(
    edges,
    kinds: @options[:kinds],
    confidences: @options[:confidences],
    from: @options[:from],
    depth: @options[:depth],
    direction: @options[:direction],
    edge_scope: @options[:edge_scope]
  )
  groups = package_groups(edges)
  collapse = groups ? [] : effective_collapse(edges)

  payload, binary = render_payload(edges, nodes, collapse, groups)
  deliver(payload, binary: binary, edges: edges)
  0
rescue OptionParser::ParseError => e
  @stderr.puts "rigor-module-graph view: #{e.message}"
  2
rescue CollectError, RenderError => e
  @stderr.puts "rigor-module-graph view: #{e.message}"
  1
end