output_helpers.rb View source

Helpers: Output helpers

Protip! make a module that overrides these settings, then use extend YourModule to make your own pretty printing thing.

 
module Mina
  module OutputHelpers

Prints a string by delegating it to the proper output helper.

It takes an input with text and prints them nicely. The text block can have statuses (prefixed with ----->), errors (prefixed with !), commands (prefixed with $) or anything else. Depending on the type of the message, they will be delegated to the proper print_* helper.

-----> Unlocking
$ unlock foo
Unlocked.
! ERROR: Failed

Returns nothing.

 
    def print_str(line)
      if line =~ /^\-+> (.*?)$/
        print_status $1
      elsif line =~ /^! (.*?)$/
        print_error $1
      elsif line =~ /^\$ (.*?)$/
        print_command $1
      else
        print_stdout line
      end
    end

Prints a single character.

 
    def print_char(ch)
      $last ||= ''

      if ch == "\n"
        print_clear
        print_str $last
        $last = ''
      else
        print '       ' if $last == ''
        print ch
        $last += ch
      end
    end

    def print_clear
      print "\033[1K\r"
    end

Prints a status message. (----->)

 
    def print_status(msg)
      puts ""  if verbose_mode?
      puts "#{color('----->', 32)} #{msg}"
    end

Prints an error message (header).

 
    def print_error(msg)
      puts " #{color("!", 33)}     #{color(msg, 31)}"
    end

Prints an error message (body), or prints stderr output.

 
    def print_stderr(msg)
      puts "       #{color(msg, 31)}"
    end

Prints a command.

 
    def print_command(msg)
      puts "       #{color("$", 32)} #{color(msg, 32)}"
    end

Prints a normal message.

 
    def print_stdout(msg)
      puts "       #{msg}"
    end

color

Colorizes a string. Returns the string str with the color c.

 
    def color(str, c)
      ENV['NO_COLOR'] ? str : "\033[#{c}m#{str}\033[0m"
    end
  end
end