Convert .minttyrc color settings to escape sequences.

export-mintty-color.rb

# encoding: utf-8

# Convert .minttyrc color settings to escape sequences.
#
# USAGE:
#   ruby export-mintty-color.rb [minttyrc_file]
#
# minttyrc_file   target rc file(default is ~/.minttyrc)

COLOR_SETTINGS = {
  'ForegroundColour' => '\e]10;%s\a',
  'BackgroundColour' => '\e]11;%s\a',
  'CursorColour'     => '\e]12;%s\a',
  'IMECursorColour'  => '\e]4;262;%s\a',
  'Black'            => '\e]4;0;%s\a',
  'BoldBlack'        => '\e]4;8;%s\a',
  'Red'              => '\e]4;1;%s\a',
  'BoldRed'          => '\e]4;9;%s\a',
  'Green'            => '\e]4;2;%s\a',
  'BoldGreen'        => '\e]4;10;%s\a',
  'Yellow'           => '\e]4;3;%s\a',
  'BoldYellow'       => '\e]4;11;%s\a',
  'Blue'             => '\e]4;4;%s\a',
  'BoldBlue'         => '\e]4;12;%s\a',
  'Magenta'          => '\e]4;5;%s\a',
  'BoldMagenta'      => '\e]4;13;%s\a',
  'Cyan'             => '\e]4;6;%s\a',
  'BoldCyan'         => '\e]4;14;%s\a',
  'White'            => '\e]4;7;%s\a',
  'BoldWhite'        => '\e]4;15;%s\a',
}

def parse_color(value)
  case value
  when /(\d+)\s*,\s*(\d+)\s*,\s*(\d+)/
    { red: $1.to_i, green: $2.to_i, blue: $3.to_i }
  when /#([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})/i
    { red: $1.hex, green: $2.hex, blue: $3.hex }
  when /rgb:([0-9a-f]{2})\/([0-9a-f]{2})\/([0-9a-f]{2})/i
    { red: $1.hex, green: $2.hex, blue: $3.hex }
  end
end

def to_hex_color(color)
  if color
    '#%02x%02x%02x' % [color[:red], color[:green], color[:blue]]
  else
    '#ffffff'
  end
end

mintty_rc = File.expand_path(ARGV[0] || '~/.minttyrc')
if !FileTest.exist?(mintty_rc)
  $stderr.puts "#{mintty_rc} not exists."
  exit 1
end

IO.foreach(mintty_rc) {|line|
  line.chomp!
  key, value = line.split(/\s*=\s*/)
  if COLOR_SETTINGS.key?(key)
    color = parse_color(value)
    if color
      color_esc = COLOR_SETTINGS[key] % to_hex_color(color)
      puts "echo -ne %20s # #{key}" % "'#{color_esc}'"
    end
  end
}