Class: Haml::Exec::Sass

Inherits:
HamlSass show all
Defined in:
lib/haml/exec.rb

Overview

The sass executable.

Instance Method Summary collapse

Methods inherited from Generic

#get_line, #parse!, #to_s

Constructor Details

#initialize(args) ⇒ Sass

Returns a new instance of Sass.

Parameters:

  • args (Array<String>) —

    The command-line arguments



200
201
202
203
204
 
# File 'lib/haml/exec.rb', line 200

def initialize(args)
  super
  @name = "Sass"
  @options[:for_engine][:load_paths] = ['.'] + (ENV['SASSPATH'] || '').split(File::PATH_SEPARATOR)
end

Instance Method Details

#process_result ⇒ Object (protected)

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



239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
 
# File 'lib/haml/exec.rb', line 239

def process_result
  if @options[:interactive]
    require 'sass'
    require 'sass/repl'
    ::Sass::Repl.new(@options).run
    return
  end

  super
  input = @options[:input]
  output = @options[:output]

  tree =
    if input.is_a?(File) && !@options[:check_syntax]
      ::Sass::Files.tree_for(input.path, @options[:for_engine])
    else
      # We don't need to do any special handling of @options[:check_syntax] here,
      # because the Sass syntax checking happens alongside evaluation
      # and evaluation doesn't actually evaluate any code anyway.
      ::Sass::Engine.new(input.read(), @options[:for_engine]).to_tree
    end

  input.close() if input.is_a?(File)

  output.write(tree.render)
  output.close() if output.is_a? File
rescue ::Sass::SyntaxError => e
  raise e if @options[:trace]
  raise "Syntax error on line #{get_line e}: #{e.message}"
end

#set_opts(opts) ⇒ Object (protected)

Tells optparse how to parse the arguments.

Parameters:

  • opts (OptionParser) 


211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
 
# File 'lib/haml/exec.rb', line 211

def set_opts(opts)
  super

  opts.on('-t', '--style NAME',
          'Output style. Can be nested (default), compact, compressed, or expanded.') do |name|
    @options[:for_engine][:style] = name.to_sym
  end
  opts.on('-l', '--line-comments',
          'Line Comments. Emit comments in the generated CSS indicating the corresponding sass line.') do
    @options[:for_engine][:line_comments] = true
  end
  opts.on('-i', '--interactive',
          'Run an interactive SassScript shell.') do
    @options[:interactive] = true
  end
  opts.on('-I', '--load-path PATH', 'Add a sass import path.') do |path|
    @options[:for_engine][:load_paths] << path
  end
  opts.on('--cache-location', 'The path to put cached Sass files. Defaults to .sass-cache.') do |loc|
    @options[:for_engine][:cache_location] = path
  end
  opts.on('-C', '--no-cache', "Don't cache to sassc files.") do
    @options[:for_engine][:cache] = false
  end
end