Module: Epdiff

Extended by:
Epdiff
Included in:
Epdiff
Defined in:
lib/epdiff.rb,
lib/epdiff/version.rb

Constant Summary collapse

VERSION = 
"1.0.2"

Instance Method Summary collapse

Instance Method Details

#execute(*args) ⇒ Object 



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# File 'lib/epdiff.rb', line 26

def execute(*args)

  tmpdir = Dir.mktmpdir
  diff_path = "diff"
  unzip_path = nil

  opts = OptionParser.new do |opts|
    opts.banner = "Usage: epdiff [options] [filename] [filename]\n"

    opts.on('-t','--tmpdir DIR', 'Set tepmorary directory') do |dir|
      tmpdir = dir
    end

    opts.on('--diff-command PATH', 'Specify diff command path') do |path|
      diff_path = path
    end

    opts.on('--unzip-command PATH', 'Specify unzip command path') do |path|
      unzip_path = path
    end

    opts.on('-h', '--help', 'Show this help message') do
      puts opts
      exit
    end

    opts.on('-v', '--version', 'Show version number') do
      puts Epdiff::VERSION
      exit
    end
  end

  begin

    opts.parse!(args)

    if args.size != 2
      # invalid option
      puts opts
      exit
    end

    file1, file2 = *args
    FileUtils.mkdir_p(tmpdir+"/file1")
    FileUtils.mkdir_p(tmpdir+"/file2")

    if unzip_path
      %x("#{unzip_path}" "#{file1}" -d "#{tmpdir}/file1")
      %x("#{unzip_path}" "#{file2}" -d "#{tmpdir}/file2")
    else
      unzip(file1, "#{tmpdir}/file1")
      unzip(file2, "#{tmpdir}/file2")
    end

    IO.popen("'#{diff_path}' -r -u '#{tmpdir}/file1' '#{tmpdir}/file2'") do |io|
      print io.read.gsub(/#{Regexp.escape(tmpdir)}/, "")
    end

  rescue => e
    warn e
    puts opts
  end
end

#unzip(filename, dir) ⇒ Object 



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# File 'lib/epdiff.rb', line 10

def unzip(filename, dir)
  Zip::InputStream.open(filename) do |zio|
    while entry = zio.get_next_entry
      entry_filename = File.join(dir, entry.name)
      if  entry.name_is_directory?
        FileUtils.mkdir_p File.dirname(entry_filename)
      elsif entry.file?
        FileUtils.mkdir_p File.dirname(entry_filename)
        File.open(entry_filename, "wb") do |f|
          f.write zio.read
        end
      end
    end
  end
end