Class: Sass::Exec::SassConvert

Inherits:
Generic
  • Object
show all
Defined in:
lib/sass/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, #puts_action, #to_s, #write_output

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/sass/exec.rb', line 560

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/sass/exec.rb', line 654

def process_result
  require 'sass'

  if @options[:recursive]
    process_directory
    return
  end

  super
  input = @options[:input]
  if File.directory?(input)
    raise "Error: '#{input.path}' is a directory (did you mean to use --recursive?)"
  end
  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/sass/exec.rb', line 572

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.',
    'By default, this is inferred from the input filename.',
    'If there is none, defaults to css.') do |name|
    @options[:from] = name.downcase.to_sym
    raise "sass-convert no longer supports LessCSS." if @options[:from] == :less
    unless [:css, :scss, :sass].include?(@options[:from])
      raise "Unknown format for sass-convert --from: #{name}"
    end
  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('--indent NUM',
    'How many spaces to use for each level of indentation. Defaults to 2.',
    '"t" means use hard tabs.') do |indent|

    if indent == 't'
      @options[:for_tree][:indent] = "\t"
    else
      @options[:for_tree][:indent] = " " * indent.to_i
    end
  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 ::Sass::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