234 lines
8.0 KiB
Ruby
234 lines
8.0 KiB
Ruby
#
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# Copyright (c) 2010 - 2011 Michael Kessler
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# with modifications by Instructure Inc, 2011
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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require 'guard'
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require 'guard/guard'
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require 'guard/watcher'
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require 'coffee_script'
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module Guard
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class CoffeeScript < Guard
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module Formatter
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class << self
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def info(message, options = { }); ::Guard::UI.info(message, options); end
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def error(message, options = { }); ::Guard::UI.error(color(message, ';31'), options); end
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def success(message, options = { }); ::Guard::UI.info(color(message, ';32'), options); end
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def notify(message, options = { }); ::Guard::Notifier.notify(message, options); end
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private
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def color(text, color_code); ::Guard::UI.send(:color_enabled?) ? "\e[0#{ color_code }m#{ text }\e[0m" : text; end
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end
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end
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module Runner
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class << self
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def run(files, watchers, options = { })
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notify_start(files, options)
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changed_files, errors = partition_by_plugin(files) do |prefix, plugin_files|
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compile_files(plugin_files, watchers, options.merge(:output => "#{prefix}#{options[:output]}"))
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end
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notify_result(changed_files, errors, options)
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[changed_files, errors.empty?]
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rescue ExecJS::RuntimeError => e
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Formatter.error("ExecJS engine error: " + e.message)
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end
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private
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def partition_by_plugin(files, &block)
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groupings = files.inject({}) { |hash, file|
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prefix = file =~ %r{\Avendor/plugins/.*?/} ? $& : ''
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hash[prefix] ||= []
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hash[prefix] << file
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hash
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}
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groupings.map(&block).inject([[], []]) { |ary, ret|
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ary[0].concat ret[0]
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ary[1].concat ret[1]
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ary
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}
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end
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def notify_start(files, options)
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message = options[:message] || (options[:noop] ? 'Verify ' : 'Compile ') + files.join(', ')
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Formatter.info(message, :reset => true)
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end
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require 'parallel'
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require 'lib/canvas/coffee_script'
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def compile_files(files, watchers, options)
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errors = []
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changed_files = []
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directories = detect_nested_directories(watchers, files, options)
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if Canvas::CoffeeScript.coffee_script_binary_is_available?
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Parallel.each(directories.map, :in_threads => Parallel.processor_count) do |(directory, scripts)|
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FileUtils.mkdir_p(File.expand_path(directory)) if !File.directory?(directory) && !options[:noop]
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system('coffee', '-c', '-o', directory, *scripts)
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if $?.exitstatus != 0
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Formatter.error("Unable to compile coffeescripts in #{directory}")
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else
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changed_files.concat(scripts.map { |script| File.join(directory, File.basename(script.gsub(/(js\.coffee|coffee)$/, 'js'))) })
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end
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end
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else
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directories.each do |directory, scripts|
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Parallel.each(scripts, :in_threads => Parallel.processor_count) do |file|
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begin
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content = compile(file, options)
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changed_files << write_javascript_file(content, file, directory, options)
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rescue Exception => e
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error_message = file + ': ' + e.message.to_s
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errors << error_message
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Formatter.error(error_message)
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end
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end
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end
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end
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[changed_files.compact, errors]
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end
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def compile(file, options)
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file_options = options_for_file(file, options)
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::CoffeeScript.compile(File.read(file), file_options)
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end
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def options_for_file(file, options)
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return options unless options[:bare].respond_to? :include?
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file_options = options.clone
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filename = file[/([^\/]*)\.coffee/]
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file_options[:bare] = file_options[:bare].include?(filename)
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file_options
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end
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def write_javascript_file(content, file, directory, options)
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FileUtils.mkdir_p(File.expand_path(directory)) if !File.directory?(directory) && !options[:noop]
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filename = File.join(directory, File.basename(file.gsub(/(js\.coffee|coffee)$/, 'js')))
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File.open(File.expand_path(filename), 'w') { |f| f.write(content) } if !options[:noop]
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filename
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end
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def detect_nested_directories(watchers, files, options)
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return { options[:output] => files } if options[:shallow]
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directories = { }
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watchers.product(files).each do |watcher, file|
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if matches = file.match(watcher.pattern)
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target = matches[1] ? File.join(options[:output], File.dirname(matches[1])).gsub(/\/\.$/, '') : options[:output]
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if directories[target]
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directories[target] << file
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else
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directories[target] = [file]
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end
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end
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end
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directories
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end
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def notify_result(changed_files, errors, options = { })
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if !errors.empty?
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Formatter.notify(errors.join("\n"), :title => 'CoffeeScript results', :image => :failed, :priority => 2)
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elsif !options[:hide_success]
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message = "Successfully #{ options[:noop] ? 'verified' : 'generated' } #{ changed_files.join(', ') }"
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Formatter.success(message)
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Formatter.notify(message, :title => 'CoffeeScript results')
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end
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end
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end
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end
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DEFAULT_OPTIONS = {
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:bare => false,
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:shallow => false,
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:hide_success => false,
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:noop => false,
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:all_on_start => false
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}
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def initialize(watchers = [], options = {})
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watchers = [] if !watchers
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defaults = DEFAULT_OPTIONS.clone
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if options[:input]
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defaults.merge!({ :output => options[:input] })
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watchers << ::Guard::Watcher.new(%r{\A(?:vendor/plugins/.*?/)?#{ Regexp.escape(options.delete(:input)) }/(.+\.coffee)\z})
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end
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super(watchers, defaults.merge(options))
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end
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def start
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run_all if options[:all_on_start]
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end
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def run_all
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run_on_change(Watcher.match_files(self, Dir.glob(File.join('**/*/**', '*.coffee'))))
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end
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def run_on_change(paths)
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changed_files, success = Runner.run(clean(paths), watchers, options)
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notify changed_files
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throw :task_has_failed unless success
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end
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def run_on_deletion(paths)
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clean(paths).each do |file|
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javascript = file.gsub(/(js\.coffee|coffee)$/, 'js')
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File.remove(javascript) if File.exist?(javascript)
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end
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end
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private
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def notify(changed_files)
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::Guard.guards.each do |guard|
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paths = Watcher.match_files(guard, changed_files)
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guard.run_on_change paths unless paths.empty?
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end
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end
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def clean(paths)
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paths.uniq!
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paths.compact!
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paths.select { |p| p =~ /.coffee$/ && File.exist?(p) }
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end
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end
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end
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