Class | Haml::Exec::Sass |
In: |
lib/haml/exec.rb
|
Parent: | HamlSass |
The `sass` executable.
@param args [Array<String>] The command-line arguments
# File lib/haml/exec.rb, line 272 272: def initialize(args) 273: super 274: @name = "Sass" 275: @options[:for_engine][:load_paths] = ['.'] + (ENV['SASSPATH'] || '').split(File::PATH_SEPARATOR) 276: end
Processes the options set by the command-line arguments, and runs the Sass compiler appropriately.
# File lib/haml/exec.rb, line 338 338: def process_result 339: if !@options[:update] && !@options[:watch] && 340: @args.first && @args.first.include?(':') 341: if @args.size == 1 342: @args = @args.first.split(':', 2) 343: else 344: @options[:update] = true 345: end 346: end 347: 348: return interactive if @options[:interactive] 349: return watch_or_update if @options[:watch] || @options[:update] 350: super 351: 352: begin 353: input = @options[:input] 354: output = @options[:output] 355: 356: @options[:syntax] ||= :scss if input.is_a?(File) && input.path =~ /\.scss$/ 357: tree = 358: if input.is_a?(File) && !@options[:check_syntax] 359: ::Sass::Files.tree_for(input.path, @options[:for_engine]) 360: else 361: # We don't need to do any special handling of @options[:check_syntax] here, 362: # because the Sass syntax checking happens alongside evaluation 363: # and evaluation doesn't actually evaluate any code anyway. 364: ::Sass::Engine.new(input.read(), @options[:for_engine]).to_tree 365: end 366: 367: input.close() if input.is_a?(File) 368: 369: output.write(tree.render) 370: output.close() if output.is_a? File 371: rescue ::Sass::SyntaxError => e 372: raise e if @options[:trace] 373: raise e.sass_backtrace_str("standard input") 374: end 375: end
Tells optparse how to parse the arguments.
@param opts [OptionParser]
# File lib/haml/exec.rb, line 283 283: def set_opts(opts) 284: super 285: 286: opts.on('--scss', 287: 'Use the CSS-superset SCSS syntax.') do 288: @options[:for_engine][:syntax] = :scss 289: end 290: opts.on('--watch', 'Watch files or directories for changes.', 291: 'The location of the generated CSS can be set using a colon:', 292: ' sass --watch input.sass:output.css', 293: ' sass --watch input-dir:output-dir') do 294: @options[:watch] = true 295: end 296: opts.on('--update', 'Compile files or directories to CSS.', 297: 'Locations are set like --watch.') do 298: @options[:update] = true 299: end 300: opts.on('-t', '--style NAME', 301: 'Output style. Can be nested (default), compact, compressed, or expanded.') do |name| 302: @options[:for_engine][:style] = name.to_sym 303: end 304: opts.on('-q', '--quiet', 'Silence warnings during compilation.') do 305: @options[:for_engine][:quiet] = true 306: end 307: opts.on('-g', '--debug-info', 308: 'Emit extra information in the generated CSS that can be used by the FireSass Firebug plugin.') do 309: @options[:for_engine][:debug_info] = true 310: end 311: opts.on('-l', '--line-numbers', '--line-comments', 312: 'Emit comments in the generated CSS indicating the corresponding sass line.') do 313: @options[:for_engine][:line_numbers] = true 314: end 315: opts.on('-i', '--interactive', 316: 'Run an interactive SassScript shell.') do 317: @options[:interactive] = true 318: end 319: opts.on('-I', '--load-path PATH', 'Add a sass import path.') do |path| 320: @options[:for_engine][:load_paths] << path 321: end 322: opts.on('--cache-location PATH', 'The path to put cached Sass files. Defaults to .sass-cache.') do |loc| 323: @options[:for_engine][:cache_location] = loc 324: end 325: opts.on('-C', '--no-cache', "Don't cache to sassc files.") do 326: @options[:for_engine][:cache] = false 327: end 328: 329: unless ::Haml::Util.ruby1_8? 330: opts.on('-E encoding', 'Specify the default encoding for Sass files.') do |encoding| 331: Encoding.default_external = encoding 332: end 333: end 334: end
# File lib/haml/exec.rb, line 379 379: def interactive 380: require 'sass' 381: require 'sass/repl' 382: ::Sass::Repl.new(@options).run 383: end
# File lib/haml/exec.rb, line 385 385: def watch_or_update 386: require 'sass' 387: require 'sass/plugin' 388: ::Sass::Plugin.options.merge! @options[:for_engine] 389: ::Sass::Plugin.options[:unix_newlines] = @options[:unix_newlines] 390: 391: if @args[1] && !@args[0].include?(':') 392: flag = @options[:update] ? "--update" : "--watch" 393: err = 394: if !File.exist?(@args[1]) 395: "doesn't exist" 396: elsif @args[1] =~ /\.css$/ 397: "is a CSS file" 398: end 399: raise "File \#{@args[1]} \#{err}.\n Did you mean: sass \#{flag} \#{@args[0]}:\#{@args[1]}\n" if err 400: end 401: 402: dirs, files = @args.map {|name| name.split(':', 2)}. 403: partition {|i, _| File.directory? i} 404: files.map! {|from, to| [from, to || from.gsub(/\..*?$/, '.css')]} 405: dirs.map! {|from, to| [from, to || from]} 406: ::Sass::Plugin.options[:template_location] = dirs 407: 408: ::Sass::Plugin.on_updating_stylesheet do |_, css| 409: if File.exists? css 410: puts_action :overwrite, :yellow, css 411: else 412: puts_action :create, :green, css 413: end 414: end 415: 416: ::Sass::Plugin.on_creating_directory {|dirname| puts_action :directory, :green, dirname} 417: ::Sass::Plugin.on_deleting_css {|filename| puts_action :delete, :yellow, filename} 418: ::Sass::Plugin.on_compilation_error do |error, _, _| 419: raise error unless error.is_a?(::Sass::SyntaxError) 420: puts_action :error, :red, "#{error.sass_filename} (Line #{error.sass_line}: #{error.message})" 421: end 422: 423: if @options[:update] 424: ::Sass::Plugin.update_stylesheets(files) 425: return 426: end 427: 428: puts ">>> Sass is watching for changes. Press Ctrl-C to stop." 429: 430: ::Sass::Plugin.on_template_modified {|template| puts ">>> Change detected to: #{template}"} 431: ::Sass::Plugin.on_template_created {|template| puts ">>> New template detected: #{template}"} 432: ::Sass::Plugin.on_template_deleted {|template| puts ">>> Deleted template detected: #{template}"} 433: 434: ::Sass::Plugin.watch(files) 435: end