82 lines
2.2 KiB
Ruby
82 lines
2.2 KiB
Ruby
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require 'rbconfig'
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class Thor
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module Base
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class << self
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attr_writer :shell
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# Returns the shell used in all Thor classes. If you are in a Unix platform
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# it will use a colored log, otherwise it will use a basic one without color.
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#
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def shell
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@shell ||= if ENV['THOR_SHELL'] && ENV['THOR_SHELL'].size > 0
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Thor::Shell.const_get(ENV['THOR_SHELL'])
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elsif RbConfig::CONFIG['host_os'] =~ /mswin|mingw/ && !ENV['ANSICON']
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Thor::Shell::Basic
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else
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Thor::Shell::Color
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end
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end
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end
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end
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module Shell
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SHELL_DELEGATED_METHODS = [:ask, :error, :set_color, :yes?, :no?, :say, :say_status, :print_in_columns, :print_table, :print_wrapped, :file_collision, :terminal_width]
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attr_writer :shell
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autoload :Basic, 'thor/shell/basic'
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autoload :Color, 'thor/shell/color'
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autoload :HTML, 'thor/shell/html'
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# Add shell to initialize config values.
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#
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# ==== Configuration
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# shell<Object>:: An instance of the shell to be used.
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#
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# ==== Examples
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#
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# class MyScript < Thor
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# argument :first, :type => :numeric
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# end
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#
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# MyScript.new [1.0], { :foo => :bar }, :shell => Thor::Shell::Basic.new
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#
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def initialize(args = [], options = {}, config = {})
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super
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self.shell = config[:shell]
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shell.base ||= self if shell.respond_to?(:base)
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end
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# Holds the shell for the given Thor instance. If no shell is given,
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# it gets a default shell from Thor::Base.shell.
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def shell
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@shell ||= Thor::Base.shell.new
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end
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# Common methods that are delegated to the shell.
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SHELL_DELEGATED_METHODS.each do |method|
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module_eval <<-METHOD, __FILE__, __LINE__
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def #{method}(*args,&block)
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shell.#{method}(*args,&block)
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end
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METHOD
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end
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# Yields the given block with padding.
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def with_padding
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shell.padding += 1
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yield
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ensure
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shell.padding -= 1
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end
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protected
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# Allow shell to be shared between invocations.
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#
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def _shared_configuration #:nodoc:
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super.merge!(:shell => shell)
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end
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end
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end
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