Class: Sass::Exec::Sass
Overview
The sass
executable.
Direct Known Subclasses
Constant Summary
Constants inherited from Generic
Instance Attribute Summary collapse
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#default_syntax
readonly
Returns the value of attribute default_syntax.
Instance Method Summary collapse
-
#initialize(args) ⇒ Sass
constructor
A new instance of Sass.
-
#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, #puts_action, #to_s
Constructor Details
#initialize(args) ⇒ Sass
Returns a new instance of Sass.
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# File 'lib/sass/exec.rb', line 182
def initialize(args)
super
@options[:for_engine] = {
:load_paths => ['.'] + (ENV['SASSPATH'] || '').split(File::PATH_SEPARATOR)
}
@default_syntax = :sass
end
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Instance Attribute Details
#default_syntax (readonly)
Returns the value of attribute default_syntax.
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# File 'lib/sass/exec.rb', line 179
def default_syntax
@default_syntax
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/sass/exec.rb', line 281
def process_result
require 'sass'
if !@options[:update] && !@options[:watch] &&
@args.first && colon_path?(@args.first)
if @args.size == 1
@args = split_colon_path(@args.first)
else
@options[:update] = true
end
end
load_compass if @options[:compass]
return interactive if @options[:interactive]
return watch_or_update if @options[:watch] || @options[:update]
super
@options[:for_engine][:filename] = @options[:filename]
begin
input = @options[:input]
output = @options[:output]
@options[:for_engine][:syntax] ||= :scss if input.is_a?(File) && input.path =~ /\.scss$/
@options[:for_engine][:syntax] ||= @default_syntax
engine =
if input.is_a?(File) && !@options[:check_syntax]
::Sass::Engine.for_file(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])
end
input.close() if input.is_a?(File)
output.write(engine.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/sass/exec.rb', line 195
def set_opts(opts)
super
opts.banner = <<END
Usage: #{default_syntax} [options] [INPUT] [OUTPUT]
Description:
Converts SCSS or Sass files to CSS.
Options:
END
if @default_syntax == :sass
opts.on('--scss',
'Use the CSS-superset SCSS syntax.') do
@options[:for_engine][:syntax] = :scss
end
else
opts.on('--sass',
'Use the Indented syntax.') do
@options[:for_engine][:syntax] = :sass
end
end
opts.on('--watch', 'Watch files or directories for changes.',
'The location of the generated CSS can be set using a colon:',
" #{@default_syntax} --watch input.#{@default_syntax}:output.css",
" #{@default_syntax} --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('--stop-on-error', 'If a file fails to compile, exit immediately.',
'Only meaningful for --watch and --update.') do
@options[:stop_on_error] = true
end
opts.on('-c', '--check', "Just check syntax, don't evaluate.") do
require 'stringio'
@options[:check_syntax] = true
@options[:output] = StringIO.new
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 and status messages during compilation.') do
@options[:for_engine][:quiet] = true
end
opts.on('--compass', 'Make Compass imports available and load project configuration.') do
@options[:compass] = 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 source 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('-r', '--require LIB', 'Require a Ruby library before running Sass.') do |lib|
require lib
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][:cache] = false
end
unless ::Sass::Util.ruby1_8?
opts.on('-E encoding', 'Specify the default encoding for Sass files.') do |encoding|
Encoding.default_external = encoding
end
end
end
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