Contents

require 'highline'

module Hobo
  class << self
    attr_accessor :ui
  end

  class Ui
    attr_accessor :interactive

    def initialize out = $stdout, error = $stderr
      colors = HighLine::ColorScheme.new do |cs|
        cs[:debug] = [ ]
        cs[:info]  = [ ]
        cs[:warning]  = [ :yellow ]
        cs[:error] = [ :red ]
        cs[:success] = [ :green ]
        cs[:opt] = [ :green ]
        cs[:command] = [:green ]
        cs[:special] = [ :blue ]
        cs[:title]   = [ :green ]
        cs[:help_title] = [ :yellow ]
        cs[:description] = [ :bold ]
      end

      HighLine.color_scheme = colors

      @out = ::HighLine.new $stdin, out
      @error = ::HighLine.new $stdin, error
    end

    def color_scheme scheme = nil
      HighLine.color_scheme = scheme if scheme
      HighLine.color_scheme
    end

    def ask question, opts = {}
      unless Hobo.ui.interactive
        raise Hobo::NonInteractive.new(question) if opts[:default].nil?
        return opts[:default]
      end

      question = "#{question} [#{opts[:default]}]" if opts[:default]
      question += ": "
      begin
        answer = @out.ask(question) do |q|
          q.validate = opts[:validate] if opts[:validate]
          q.readline
        end
        answer.strip.empty? ? opts[:default] : answer.strip
      rescue EOFError
        Hobo.ui.info ""
        ""
      end
    end

    def separator
      info ""
    end

    def color *args
      @out.color *args
    end

    def debug message
      say @out, message, :debug
    end

    def info message
      say @out, message, :info
    end

    def warning message
      say @error, message, :warning
    end

    def error message
      say @error, message, :error
    end

    def success message
      say @out, message, :success
    end

    def title message
      say @out, message, :title
    end

    private

    def say channel, message, color
      return if message.nil?
      channel.say(color ? channel.color(message, color) : message)
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
hobo-inviqa-0.0.3	lib/hobo/ui.rb
hobo-inviqa-0.0.2	lib/hobo/ui.rb