Class: Haml::Exec::SassConvert

Inherits:
Generic
  • Object
show all
Defined in:
lib/haml/exec.rb

Overview

The sass-convert executable.

Constant Summary

Constants inherited from Generic

Generic::COLORS

Instance Method Summary collapse

Methods inherited from Generic

#color, #get_line, #parse, #parse!, #puts_action, #to_s

Constructor Details

#initialize(args) ⇒ SassConvert

Returns a new instance of SassConvert.

Parameters:

  • args (Array<String>) —

    The command-line arguments



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# File 'lib/haml/exec.rb', line 630

def initialize(args)
  super
  require 'sass'
  @options[:for_tree] = {}
  @options[:for_engine] = {:cache => false, :read_cache => true}
end

Instance Method Details

#process_result

Processes the options set by the command-line arguments, and runs the CSS compiler appropriately.



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# File 'lib/haml/exec.rb', line 709

def process_result
  require 'sass'

  if @options[:recursive]
    process_directory
    return
  end

  super
  input = @options[:input]
  raise "Error: '#{input.path}' is a directory (did you mean to use --recursive?)" if File.directory?(input)
  output = @options[:output]
  output = input if @options[:in_place]
  process_file(input, output)
end

#set_opts(opts)

Tells optparse how to parse the arguments.

Parameters:

  • opts (OptionParser) 


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# File 'lib/haml/exec.rb', line 640

def set_opts(opts)
  opts.banner = <<END
Usage: sass-convert [options] [INPUT] [OUTPUT]

Description:
  Converts between CSS, Sass, and SCSS files.
  E.g. converts from SCSS to Sass,
  or converts from CSS to SCSS (adding appropriate nesting).

Options:
END

  opts.on('-F', '--from FORMAT',
    'The format to convert from. Can be css, scss, sass, less, or sass2.',
    'sass2 is the same as sass, but updates more old syntax to new.',
    'By default, this is inferred from the input filename.',
    'If there is none, defaults to css.') do |name|
    @options[:from] = name.downcase.to_sym
    unless [:css, :scss, :sass, :less, :sass2].include?(@options[:from])
      raise "Unknown format for sass-convert --from: #{name}"
    end
    try_less_note if @options[:from] == :less
  end

  opts.on('-T', '--to FORMAT',
    'The format to convert to. Can be scss or sass.',
    'By default, this is inferred from the output filename.',
    'If there is none, defaults to sass.') do |name|
    @options[:to] = name.downcase.to_sym
    unless [:scss, :sass].include?(@options[:to])
      raise "Unknown format for sass-convert --to: #{name}"
    end
  end

  opts.on('-R', '--recursive',
    'Convert all the files in a directory. Requires --from and --to.') do
    @options[:recursive] = true
  end

  opts.on('-i', '--in-place',
    'Convert a file to its own syntax.',
    'This can be used to update some deprecated syntax.') do
    @options[:in_place] = true
  end

  opts.on('--dasherize', 'Convert underscores to dashes') do
    @options[:for_tree][:dasherize] = true
  end

  opts.on('--old', 'Output the old-style ":prop val" property syntax.',
                   'Only meaningful when generating Sass.') do
    @options[:for_tree][:old] = true
  end

  opts.on('-C', '--no-cache', "Don't cache to sassc files.") do
    @options[:for_engine][:read_cache] = false
  end

  unless ::Haml::Util.ruby1_8?
    opts.on('-E encoding', 'Specify the default encoding for Sass and CSS files.') do |encoding|
      Encoding.default_external = encoding
    end
  end

  super
end