Module: CLI

Included in:
Git::ReleaseNotes, Git::Tagger, Git::Wiki
Defined in:
lib/cli.rb

Instance Method Summary collapse

Instance Method Details

#ask(question, default = nil, valid_response = nil, invalid_message = nil) ⇒ Object 



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# File 'lib/cli.rb', line 21

def ask(question, default=nil, valid_response=nil, invalid_message=nil)
  loop do
    print "#{question}"
    print " [#{default}]" if default
    print ": "
    answer = STDIN.gets.chomp
    answer = default if default && answer.empty?
    valid = false
    valid = true if valid_response.nil?
    valid = true if valid_response.respond_to?(:include?) && valid_response.include?(answer)
    valid = true if valid_response.respond_to?(:match) && valid_response.match(answer)
    if valid
      return answer
    else
      if valid_response.is_a?(Array)
        puts invalid_message || begin
          print "Invalid answer, please try again."
          print " Valid answers include:\n"
          puts valid_response
        end
      elsif valid_response.is_a?(Regexp)
        puts invalid_message || "Invalid format for answer, please try again."
      else
        puts invalid_message || "Invalid answer, please try again."
      end
    end
  end  
end

#error(message) ⇒ Object 



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

def error(message)
  wrap(STDERR){ STDERR.puts "Error: #{message}" }
  exit 1
end

#stars(num = 50) ⇒ Object 



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# File 'lib/cli.rb', line 11

def stars(num=50)
  return "*" * num
end

#warn(message) ⇒ Object 



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# File 'lib/cli.rb', line 2

def warn(message)
  wrap(STDERR){ STDERR.puts "Warning: #{message}" }
end

#wrap(stream = STDOUT) ⇒ Object 



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# File 'lib/cli.rb', line 15

def wrap(stream=STDOUT)
  stream.puts stars
  yield
  stream.puts stars
end