Class: Haml::Exec::HamlSass

Inherits:
Generic show all
Defined in:
/var/www/haml-pages/.haml/lib/haml/exec.rb

Overview

An abstrac class that encapsulates the code specific to the haml and sass executables.

Direct Known Subclasses

Haml, Sass

Constant Summary

Instance Method Summary

Methods inherited from Generic

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

Constructor Details

- (HamlSass) initialize(args)

A new instance of HamlSass

Parameters:

  • (Array<String>) args — The command-line arguments 


176
177
178
179
 
# File '/var/www/haml-pages/.haml/lib/haml/exec.rb', line 176

def initialize(args)
  super
  @options[:for_engine] = {}
end

Instance Method Details

- process_result (protected)

Processes the options set by the command-line arguments. In particular, sets @options[:for_engine][:filename] to the input filename and requires the appropriate file.

This is meant to be overridden by subclasses so they can run their respective programs.



261
262
263
264
265
 
# File '/var/www/haml-pages/.haml/lib/haml/exec.rb', line 261

def process_result
  super
  @options[:for_engine][:filename] = @options[:filename] if @options[:filename]
  require File.dirname(__FILE__) + "/../#{@name.downcase}"
end

- set_opts(opts) (protected)

Tells optparse how to parse the arguments available for the haml and sass executables.

This is meant to be overridden by subclasses so they can add their own options.

Parameters:

  • (OptionParser) opts 


190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
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
236
237
238
239
240
241
242
243
244
 
# File '/var/www/haml-pages/.haml/lib/haml/exec.rb', line 190

def set_opts(opts)
  opts.banner = "Usage: \#{@name.downcase} [options] [INPUT] [OUTPUT]\n\nDescription:\n  Uses the \#{@name} engine to parse the specified template\n  and outputs the result to the specified file.\n\nOptions:\n"

  opts.on('--rails RAILS_DIR', "Install Haml and Sass from the Gem to a Rails project") do |dir|
    original_dir = dir

    env = File.join(dir, "config", "environment.rb")
    if File.exists?(File.join(dir, "Gemfile"))
      puts("haml --rails isn't needed for Rails 3 or greater.",
        "Add 'gem \"haml\"' to your Gemfile instead.", "",
        "haml --rails will no longer work in the next version of #{@name}.", "")
    elsif File.exists?(env) && File.open(env) {|env| env.grep(/config\.gem/)}
      puts("haml --rails isn't needed for Rails 2.1 or greater.",
        "Add 'config.gem \"haml\"' to config/environment.rb instead.", "",
        "haml --rails will no longer work in the next version of #{@name}.", "")
    end

    dir = File.join(dir, 'vendor', 'plugins')

    unless File.exists?(dir)
      puts "Directory #{dir} doesn't exist"
      exit 1
    end

    dir = File.join(dir, 'haml')

    if File.exists?(dir)
      print "Directory #{dir} already exists, overwrite [y/N]? "
      exit 2 if gets !~ /y/i
      FileUtils.rm_rf(dir)
    end

    begin
      Dir.mkdir(dir)
    rescue SystemCallError
      puts "Cannot create #{dir}"
      exit 1
    end

    File.open(File.join(dir, 'init.rb'), 'w') do |file|
      file << File.read(File.dirname(__FILE__) + "/../../init.rb")
    end

    puts "Haml plugin added to #{original_dir}"
    exit
  end

  opts.on('-c', '--check', "Just check syntax, don't evaluate.") do
    require 'stringio'
    @options[:check_syntax] = true
    @options[:output] = StringIO.new
  end

  super
end