Class Haml::Exec::HamlSass
In: lib/haml/exec.rb
Parent: Generic

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

Methods

new   process_result   set_opts  

Public Class methods

new(args)

@param args [Array<String>] The command-line arguments

[Source]

     # File lib/haml/exec.rb, line 176
176:       def initialize(args)
177:         super
178:         @options[:for_engine] = {}
179:       end

Protected Instance methods

process_result()

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.

[Source]

     # File lib/haml/exec.rb, line 261
261:       def process_result
262:         super
263:         @options[:for_engine][:filename] = @options[:filename] if @options[:filename]
264:         require File.dirname(__FILE__) + "/../#{@name.downcase}"
265:       end
set_opts(opts)

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.

@param opts [OptionParser]

[Source]

     # File lib/haml/exec.rb, line 190
190:       def set_opts(opts)
191:         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"
192: 
193:         opts.on('--rails RAILS_DIR', "Install Haml and Sass from the Gem to a Rails project") do |dir|
194:           original_dir = dir
195: 
196:           env = File.join(dir, "config", "environment.rb")
197:           if File.exists?(File.join(dir, "Gemfile"))
198:             puts("haml --rails isn't needed for Rails 3 or greater.",
199:               "Add 'gem \"haml\"' to your Gemfile instead.", "",
200:               "haml --rails will no longer work in the next version of #{@name}.", "")
201:           elsif File.exists?(env) && File.open(env) {|env| env.grep(/config\.gem/)}
202:             puts("haml --rails isn't needed for Rails 2.1 or greater.",
203:               "Add 'gem \"haml\"' to config/environment.rb instead.", "",
204:               "haml --rails will no longer work in the next version of #{@name}.", "")
205:           end
206: 
207:           dir = File.join(dir, 'vendor', 'plugins')
208: 
209:           unless File.exists?(dir)
210:             puts "Directory #{dir} doesn't exist"
211:             exit 1
212:           end
213: 
214:           dir = File.join(dir, 'haml')
215: 
216:           if File.exists?(dir)
217:             print "Directory #{dir} already exists, overwrite [y/N]? "
218:             exit 2 if gets !~ /y/i
219:             FileUtils.rm_rf(dir)
220:           end
221: 
222:           begin
223:             Dir.mkdir(dir)
224:           rescue SystemCallError
225:             puts "Cannot create #{dir}"
226:             exit 1
227:           end
228: 
229:           File.open(File.join(dir, 'init.rb'), 'w') do |file|
230:             file << File.read(File.dirname(__FILE__) + "/../../init.rb")
231:           end
232: 
233:           puts "Haml plugin added to #{original_dir}"
234:           exit
235:         end
236: 
237:         opts.on('-c', '--check', "Just check syntax, don't evaluate.") do
238:           require 'stringio'
239:           @options[:check_syntax] = true
240:           @options[:output] = StringIO.new
241:         end
242: 
243:         super
244:       end

[Validate]