Class: Rigor::ModuleGraph::CLI::Cycles

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

Constant Summary

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:, stdin:) ⇒ Cycles

Returns a new instance of Cycles.



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# File 'lib/rigor/module_graph/cli.rb', line 1059

def initialize(stdout:, stderr:, stdin:)
  @stdout = stdout
  @stderr = stderr
  @stdin = stdin
  @state = {
    kinds: nil, confidences: nil,
    from: nil, depth: nil, direction: :both
  }
end

Instance Method Details

#parse_options!(argv) ⇒ Object 



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# File 'lib/rigor/module_graph/cli.rb', line 1101

def parse_options!(argv)
  parser = OptionParser.new do |opts|
    opts.banner = "Usage: rigor-module-graph cycles [options] [FILE]"
    # `--only` kept as an alias for `--kind` for backward
    # compat with the Phase 1 flag.
    opts.on("--only KINDS", Array,
            "Alias for --kind") do |kinds|
      @state[:kinds] = kinds
    end
    add_filter_options(opts, @state)
    opts.on("-h", "--help") do
      @stdout.puts opts
      exit 0
    end
  end
  parser.parse!(argv)
end

#run(argv) ⇒ Object 



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# File 'lib/rigor/module_graph/cli.rb', line 1069

def run(argv)
  argv = argv.dup
  parse_options!(argv)
  path, = argv
  io = path ? File.open(path, "r") : @stdin
  begin
    edges = EdgeIO.read(io)
  ensure
    io.close if path && !io.closed?
  end
  edges = apply_filters(
    edges,
    kinds: @state[:kinds],
    confidences: @state[:confidences],
    from: @state[:from],
    depth: @state[:depth],
    direction: @state[:direction],
    edge_scope: @state[:edge_scope]
  )
  cycles = CycleDetector.detect(edges)
  if cycles.empty?
    @stderr.puts "rigor-module-graph cycles: no cycles found"
    0
  else
    cycles.each { |c| @stdout.puts c.to_s }
    1
  end
rescue OptionParser::ParseError => e
  @stderr.puts "rigor-module-graph cycles: #{e.message}"
  2
end