Class: Rpatch::Tty

Inherits:
Object
  • Object
show all
Defined in:
lib/rpatch/utils.rb

Class Method Summary collapse

Class Method Details

.blue ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 10

def blue; bold 34; end

.debug(*messages) ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 89

def debug(*messages)
  tty_puts(*messages << {:type => :debug, :color => :blue})
end

.die(*messages) ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 27

def die(*messages)
  error messages
  exit 1
end

.em ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 15

def em; underline 39; end

.error(*messages) ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 73

def error(*messages)
  tty_puts(*messages << {:type => :error, :color => :red})
end

.gray ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 17

def gray; bold 30 end

.green ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 16

def green; color 92 end

.info(*messages) ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 85

def info(*messages)
  tty_puts(*messages << {:type => :info, :color => :green})
end

.notice(*messages) ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 81

def notice(*messages)
  tty_puts(*messages << {:type => nil})
end

.options ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 7

def options
  @options ||= {:verbose => 0}
end

.red ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 12

def red; underline 31; end

.reset ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 14

def reset; escape 0; end

.tty_puts(*args) ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 32

def tty_puts(*args)
  opts = args.last.is_a?(Hash) ? args.pop : {}

  case (opts[:type] || :notice).to_s.downcase.to_sym
  when :error
    # always show errors
  when :warning
    return if verbose < -1
  when :notice
    return if verbose < 0
  when :info
    return if verbose < 1
  when :debug
    return if verbose < 2
  end

  lines = args.map{|m| m.to_s.split($/)}.flatten
  prompt = opts[:type] ? "#{opts[:type].to_s.upcase}: " : ""
  if opts[:type]
    if STDERR.tty?
      STDERR.write "#{Tty.red}#{prompt}#{Tty.reset}"
    else
      STDERR.write "#{prompt}"
    end
  end
  if STDERR.tty? and opts[:color] and Tty.respond_to? opts[:color]
    STDERR.puts "#{Tty.send(opts[:color])}#{lines.shift}#{Tty.reset}"
  else
    STDERR.puts lines.shift
  end
  spaces = " " * prompt.size
  lines.each do |line|
    STDERR.write spaces
    if STDERR.tty? and opts[:color] and Tty.respond_to? opts[:color]
      STDERR.puts "#{Tty.send(opts[:color])}#{line}#{Tty.reset}"
    else
      STDERR.puts line
    end
  end
end

.warning(*messages) ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 77

def warning(*messages)
  tty_puts(*messages << {:type => :warning, :color => :yellow})
end

.white ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 11

def white; bold 39; end

.width ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 19

def width
  @width = begin
    w = %x{stty size 2>/dev/null}.chomp.split.last.to_i.nonzero?
    w ||= %x{tput cols 2>/dev/null}.to_i
    w < 1 ? 80 : w
  end
end

.yellow ⇒ Object 



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# File 'lib/rpatch/utils.rb', line 13

def yellow; underline 33 ; end