Module: Hoe::RCov

Defined in:
lib/hoe/rcov.rb

Overview

RCov plugin for hoe.

Tasks Provided:

rcov

Analyze code coverage with tests

Instance Method Summary collapse

Instance Method Details

#activate_rcov_deps ⇒ Object

Activate the rcov dependencies.



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# File 'lib/hoe/rcov.rb', line 13

def activate_rcov_deps
  dependency "rcov", "~> 0.9", :development
end

#define_rcov_tasks ⇒ Object

Define tasks for plugin.



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# File 'lib/hoe/rcov.rb', line 20

def define_rcov_tasks
  task :isolate # ensure it exists

  task :rcov => :isolate do
    sh(*make_rcov_cmd)
  end

  task :clobber_rcov do
    rm_rf "coverage"
  end

  task :clobber => :clobber_rcov

  # this is for my emacs rcov overlay stuff on emacswiki.
  task :rcov_overlay do
    path = ENV["FILE"]
    rcov, eol = Marshal.load(File.read("coverage.info")).last[path], 1
    puts rcov[:lines].zip(rcov[:coverage]).map { |line, coverage|
      bol, eol = eol, eol + line.length
      [bol, eol, "#ffcccc"] unless coverage
    }.compact.inspect
  end
rescue LoadError
  # skip
  task :clobber_rcov # in case rcov didn't load
  # TODO: didn't load? this must be terribly historical
end

#make_rcov_cmd ⇒ Object

:nodoc:



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# File 'lib/hoe/rcov.rb', line 48

def make_rcov_cmd # :nodoc:
  rcov  = Gem.bin_wrapper "rcov"
  tests = test_globs.sort.map { |g| Dir.glob(g) }.flatten.map(&:inspect)

  cmd = %W[#{rcov}
           #{Hoe::RUBY_FLAGS}
           --text-report
           --no-color
           --save coverage.info
           -x ^/
           -x tmp/isolate
           --sort coverage
           --sort-reverse
           -o coverage
          ] + tests

  cmd
end