Class: Haml::Exec::HamlSass
Overview
An abstrac class that encapsulates the code
specific to the haml
and sass
executables.
Constant Summary
Constants inherited from Generic
Instance Method Summary collapse
-
#initialize(args) ⇒ HamlSass
constructor
A new instance of HamlSass.
-
#process_result
protected
Processes the options set by the command-line arguments.
-
#set_opts(opts)
protected
Tells optparse how to parse the arguments available for the
haml
andsass
executables.
Methods inherited from Generic
#color, #get_line, #parse, #parse!, #puts_action, #to_s
Constructor Details
#initialize(args) ⇒ HamlSass
Returns a new instance of HamlSass.
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# File 'lib/haml/exec.rb', line 175
def initialize(args)
super
@options[:for_engine] = {}
end
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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.
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# File 'lib/haml/exec.rb', line 259
def process_result
super
@options[:for_engine][:filename] = @options[:filename] if @options[:filename]
require File.dirname(__FILE__) + "/../#{@name.downcase}"
end
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#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.
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# File 'lib/haml/exec.rb', line 189
def set_opts(opts)
opts.banner = <<END
Usage: #{@name.downcase} [options] [INPUT] [OUTPUT]
Description:
Uses the #{@name} engine to parse the specified template
and outputs the result to the specified file.
Options:
END
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 '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
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