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rud/watchr-runner.rb

Created February 8, 2010 14:17
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  1. rud created this gist Feb 8, 2010.
    74 changes: 74 additions & 0 deletions watchr-runner.rb
    View file
    Original file line number Diff line number Diff line change
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    if __FILE__ == $0
    puts "Run with: watchr #{__FILE__}. \n\nRequired gems: watchr rev"
    exit 1
    end

    # --------------------------------------------------
    # Convenience Methods
    # --------------------------------------------------
    def run(cmd)
    puts(cmd)
    system(cmd)
    end

    def run_all_specs
    run "rake -s spec"
    end

    def run_single_spec *spec
    spec = spec.join(' ')
    run "script/spec -O spec/spec.opts #{spec}"
    end

    def run_specs_with_shared_examples(shared_example_filename, spec_path = 'spec')

    # Returns the names of the shared examples in filename
    def shared_examples(filename)
    lines = File.readlines(filename)
    lines.grep(/shared_examples_for[\s'"]+(.+)['"]\s*[do|\{]/) do |matching_line|
    $1
    end
    end

    # Returns array with filenames of the specs using shared_example
    def specs_with_shared_example(shared_example, path)
    command = "grep -lrE 'it_should_behave_like .(#{shared_example}).' #{path}"
    `#{command}`.split
    end

    shared_examples(shared_example_filename).each do |shared_example|
    specs_to_run = specs_with_shared_example(shared_example, spec_path)
    run_single_spec(specs_to_run) unless specs_to_run.empty?
    end

    end

    def run_cucumber_scenario scenario_path
    run "cucumber #{scenario_path}"
    end

    # --------------------------------------------------
    # Watchr Rules
    # --------------------------------------------------
    watch( '^spec/spec_helper\.rb' ) { run_all_specs }
    watch( '^spec/shared_behaviors/.*\.rb' ) { |m| run_specs_with_shared_examples(m[0]) }
    watch( '^spec/.*_spec\.rb' ) { |m| run_single_spec(m[0]) }
    watch( '^app/(.*)\.rb' ) { |m| run_single_spec("spec/%s_spec.rb" % m[1]) }
    watch( '^app/views/(.*)\.haml' ) { |m| run_single_spec("spec/views/%s.haml_spec.rb" % m[1]) }
    watch( '^lib/(.*)\.rb' ) { |m| run_single_spec("spec/other/%s_spec.rb" % m[1] ) }
    watch( '^features/.*\.feature' ) { |m| run_cucumber_scenario(m[0]) }


    # --------------------------------------------------
    # Signal Handling
    # --------------------------------------------------
    # Ctrl-\
    Signal.trap('QUIT') do
    puts " --- Running all tests ---\n\n"
    run_all_specs
    end

    # Ctrl-C
    Signal.trap('INT') { abort("\n") }

    puts "Watching.."