Class: Haml::Exec::Sass
Overview
The sass
executable.
Constant Summary
Constants inherited from Generic
Instance Method Summary collapse
-
#initialize(args) ⇒ Sass
constructor
A new instance of Sass.
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#process_result
protected
Processes the options set by the command-line arguments, and runs the Sass compiler appropriately.
-
#set_opts(opts)
protected
Tells optparse how to parse the arguments.
Methods inherited from Generic
#color, #get_line, #parse, #parse!, #puts_action, #to_s
Constructor Details
#initialize(args) ⇒ Sass
Returns a new instance of Sass.
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# File 'lib/haml/exec.rb', line 269
def initialize(args)
super
@name = "Sass"
@options[:for_engine][:load_paths] = ['.'] + (ENV['SASSPATH'] || '').split(File::PATH_SEPARATOR)
end
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Instance Method Details
#process_result (protected)
Processes the options set by the command-line arguments, and runs the Sass compiler appropriately.
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# File 'lib/haml/exec.rb', line 329
def process_result
if !@options[:update] && !@options[:watch] &&
@args.first && @args.first.include?(':')
if @args.size == 1
@args = @args.first.split(':', 2)
else
@options[:update] = true
end
end
return interactive if @options[:interactive]
return watch_or_update if @options[:watch] || @options[:update]
super
begin
input = @options[:input]
output = @options[:output]
@options[:syntax] ||= :scss if input.is_a?(File) && input.path =~ /\.scss$/
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 e.sass_backtrace_str("standard input")
end
end
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#set_opts(opts) (protected)
Tells optparse how to parse the arguments.
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# File 'lib/haml/exec.rb', line 280
def set_opts(opts)
super
opts.on('--scss',
'Use the CSS-superset SCSS syntax.') do
@options[:for_engine][:syntax] = :scss
end
opts.on('--watch', 'Watch files or directories for changes.',
'The location of the generated CSS can be set using a colon:',
' sass --watch input.sass:output.css',
' sass --watch input-dir:output-dir') do
@options[:watch] = true
end
opts.on('--update', 'Compile files or directories to CSS.',
'Locations are set like --watch.') do
@options[:update] = true
end
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('-q', '--quiet', 'Silence warnings during compilation.') do
@options[:for_engine][:quiet] = true
end
opts.on('-g', '--debug-info',
'Emit extra information in the generated CSS that can be used by the FireSass Firebug plugin.') do
@options[:for_engine][:debug_info] = true
end
opts.on('-l', '--line-numbers', '--line-comments',
'Emit comments in the generated CSS indicating the corresponding sass line.') do
@options[:for_engine][:line_numbers] = 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 PATH', 'The path to put cached Sass files. Defaults to .sass-cache.') do |loc|
@options[:for_engine][:cache_location] = loc
end
opts.on('-C', '--no-cache', "Don't cache to sassc files.") do
@options[:for_engine][:read_cache] = false
end
end
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