Module: CdExec

Defined in:
lib/cdexec.rb

Class Method Summary collapse

Class Method Details

.cli(*argv) ⇒ Object

Command line interface.



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# File 'lib/cdexec.rb', line 6

def self.cli(*argv)
  case i = argv.index('-')
  when nil
    dirs, args = argv, Dir['*']
  else
    dirs, args = argv[0...i], argv[i+1..-1]
  end

  help   = dirs.delete('-h') || dirs.delete('--help')
  trace  = dirs.delete('-t') || dirs.delete('--trace')

  display_help if help

  dirs = dirs.select{ |dir| File.directory?(dir) }

  dirs.each_with_index do |dir, idx|
    puts "\n#{idx+1}. #{dir}" if trace
    Dir.chdir dir do
      system command_line(*args)
    end
  end
end

.command_line(*args) ⇒ Object

Glue the command line together, adding double quotes if argument contains spaces.



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# File 'lib/cdexec.rb', line 31

def self.command_line(*args)
  args.map do |a|
    case a
    when /\s/
      %{"#{a}"}
    else
      a
    end
  end.join(' ')
end

.display_help ⇒ Object

Display help message and exit.



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# File 'lib/cdexec.rb', line 43

def self.display_help
  system "man #{man_file}" || puts(File.read(ronn_file))
  exit 0
end

.man_file ⇒ Object

Path to roff man-page file.



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# File 'lib/cdexec.rb', line 49

def self.man_file
  File.dirname(__FILE__) + '/../man/cdexe.1'
end

.ronn_file ⇒ Object

Path to ronn man-page file.



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# File 'lib/cdexec.rb', line 54

def self.ronn_file
  File.dirname(__FILE__) + '/../man/cdexe.1.ronn'
end