Initial import
This commit is contained in:
235
vendor/plugins/asset_packager/lib/synthesis/asset_package.rb
vendored
Normal file
235
vendor/plugins/asset_packager/lib/synthesis/asset_package.rb
vendored
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module Synthesis
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class AssetPackage
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# class variables
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@@asset_packages_yml = $asset_packages_yml ||
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(File.exists?("#{RAILS_ROOT}/config/asset_packages.yml") ? YAML.load_file("#{RAILS_ROOT}/config/asset_packages.yml") : nil)
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# singleton methods
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class << self
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def merge_environments=(environments)
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@@merge_environments = environments
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end
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def merge_environments
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@@merge_environments ||= ["production"]
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end
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def parse_path(path)
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/^(?:(.*)\/)?([^\/]+)$/.match(path).to_a
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end
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def find_by_type(asset_type)
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@@asset_packages_yml[asset_type].map { |p| self.new(asset_type, p) }
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end
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def find_by_target(asset_type, target)
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package_hash = @@asset_packages_yml[asset_type].find {|p| p.keys.first == target }
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package_hash ? self.new(asset_type, package_hash) : nil
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end
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def find_by_source(asset_type, source)
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path_parts = parse_path(source)
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package_hash = @@asset_packages_yml[asset_type].find do |p|
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key = p.keys.first
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p[key].include?(path_parts[2]) && (parse_path(key)[1] == path_parts[1])
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end
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package_hash ? self.new(asset_type, package_hash) : nil
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end
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def targets_from_sources(asset_type, sources)
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package_names = Array.new
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sources.each do |source|
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package = find_by_target(asset_type, source) || find_by_source(asset_type, source)
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package_names << (package ? package.current_file : source)
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end
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package_names.uniq
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end
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def sources_from_targets(asset_type, targets)
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source_names = Array.new
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targets.each do |target|
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package = find_by_target(asset_type, target)
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source_names += (package ? package.sources.collect do |src|
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package.target_dir.gsub(/^(.+)$/, '\1/') + src
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end : target.to_a)
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end
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source_names.uniq
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end
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def build_all
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@@asset_packages_yml.keys.each do |asset_type|
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@@asset_packages_yml[asset_type].each { |p| self.new(asset_type, p).build }
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end
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end
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def delete_all
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@@asset_packages_yml.keys.each do |asset_type|
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@@asset_packages_yml[asset_type].each { |p| self.new(asset_type, p).delete_all_builds }
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end
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end
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def create_yml
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unless File.exists?("#{RAILS_ROOT}/config/asset_packages.yml")
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asset_yml = Hash.new
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asset_yml['javascripts'] = [{"base" => build_file_list("#{RAILS_ROOT}/public/javascripts", "js")}]
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asset_yml['stylesheets'] = [{"base" => build_file_list("#{RAILS_ROOT}/public/stylesheets", "css")}]
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File.open("#{RAILS_ROOT}/config/asset_packages.yml", "w") do |out|
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YAML.dump(asset_yml, out)
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end
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log "config/asset_packages.yml example file created!"
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log "Please reorder files under 'base' so dependencies are loaded in correct order."
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else
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log "config/asset_packages.yml already exists. Aborting task..."
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end
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end
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end
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# instance methods
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attr_accessor :asset_type, :target, :target_dir, :sources
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def initialize(asset_type, package_hash)
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target_parts = self.class.parse_path(package_hash.keys.first)
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@target_dir = target_parts[1].to_s
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@target = target_parts[2].to_s
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@sources = package_hash[package_hash.keys.first]
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@asset_type = asset_type
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@asset_path = ($asset_base_path ? "#{$asset_base_path}/" : "#{RAILS_ROOT}/public/") +
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"#{@asset_type}#{@target_dir.gsub(/^(.+)$/, '/\1')}"
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@extension = get_extension
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@match_regex = Regexp.new("\\A#{@target}_\\d+.#{@extension}\\z")
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end
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def current_file
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@target_dir.gsub(/^(.+)$/, '\1/') +
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Dir.new(@asset_path).entries.delete_if { |x| ! (x =~ @match_regex) }.sort.reverse[0].chomp(".#{@extension}")
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end
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def build
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delete_old_builds
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create_new_build
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end
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def delete_old_builds
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Dir.new(@asset_path).entries.delete_if { |x| ! (x =~ @match_regex) }.each do |x|
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File.delete("#{@asset_path}/#{x}") unless x.index(revision.to_s)
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end
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end
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def delete_all_builds
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Dir.new(@asset_path).entries.delete_if { |x| ! (x =~ @match_regex) }.each do |x|
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File.delete("#{@asset_path}/#{x}")
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end
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end
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private
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def revision
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unless @revision
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revisions = [1]
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@sources.each do |source|
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revisions << get_file_revision("#{@asset_path}/#{source}.#{@extension}")
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end
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@revision = revisions.max
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end
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@revision
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end
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def get_file_revision(path)
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if File.exists?(path)
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begin
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`svn info #{path}`[/Last Changed Rev: (.*?)\n/][/(\d+)/].to_i
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rescue # use filename timestamp if not in subversion
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File.mtime(path).to_i
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end
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else
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0
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end
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end
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def create_new_build
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if File.exists?("#{@asset_path}/#{@target}_#{revision}.#{@extension}")
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log "Latest version already exists: #{@asset_path}/#{@target}_#{revision}.#{@extension}"
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else
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File.open("#{@asset_path}/#{@target}_#{revision}.#{@extension}", "w") {|f| f.write(compressed_file) }
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log "Created #{@asset_path}/#{@target}_#{revision}.#{@extension}"
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end
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end
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def merged_file
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merged_file = ""
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@sources.each {|s|
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File.open("#{@asset_path}/#{s}.#{@extension}", "r") { |f|
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merged_file += f.read + "\n"
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}
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}
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merged_file
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end
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def compressed_file
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case @asset_type
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when "javascripts" then compress_js(merged_file)
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when "stylesheets" then compress_css(merged_file)
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end
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end
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def compress_js(source)
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jsmin_path = "#{RAILS_ROOT}/vendor/plugins/asset_packager/lib"
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tmp_path = "#{RAILS_ROOT}/tmp/#{@target}_#{revision}"
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# write out to a temp file
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File.open("#{tmp_path}_uncompressed.js", "w") {|f| f.write(source) }
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# compress file with JSMin library
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`ruby #{jsmin_path}/jsmin.rb <#{tmp_path}_uncompressed.js >#{tmp_path}_compressed.js \n`
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# read it back in and trim it
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result = ""
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File.open("#{tmp_path}_compressed.js", "r") { |f| result += f.read.strip }
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# delete temp files if they exist
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File.delete("#{tmp_path}_uncompressed.js") if File.exists?("#{tmp_path}_uncompressed.js")
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File.delete("#{tmp_path}_compressed.js") if File.exists?("#{tmp_path}_compressed.js")
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result
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end
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def compress_css(source)
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source.gsub!(/\s+/, " ") # collapse space
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source.gsub!(/\/\*(.*?)\*\/ /, "") # remove comments - caution, might want to remove this if using css hacks
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source.gsub!(/\} /, "}\n") # add line breaks
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source.gsub!(/\n$/, "") # remove last break
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source.gsub!(/ \{ /, " {") # trim inside brackets
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source.gsub!(/; \}/, "}") # trim inside brackets
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source
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end
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def get_extension
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case @asset_type
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when "javascripts" then "js"
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when "stylesheets" then "css"
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end
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end
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def log(message)
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self.class.log(message)
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end
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def self.log(message)
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puts message
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end
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def self.build_file_list(path, extension)
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re = Regexp.new(".#{extension}\\z")
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file_list = Dir.new(path).entries.delete_if { |x| ! (x =~ re) }.map {|x| x.chomp(".#{extension}")}
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# reverse javascript entries so prototype comes first on a base rails app
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file_list.reverse! if extension == "js"
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file_list
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end
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end
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end
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67
vendor/plugins/asset_packager/lib/synthesis/asset_package_helper.rb
vendored
Normal file
67
vendor/plugins/asset_packager/lib/synthesis/asset_package_helper.rb
vendored
Normal file
@@ -0,0 +1,67 @@
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module Synthesis
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module AssetPackageHelper
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def should_merge?
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AssetPackage.merge_environments.include?(RAILS_ENV)
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end
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def javascript_include_merged(*sources)
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options = sources.last.is_a?(Hash) ? sources.pop.stringify_keys : { }
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if sources.include?(:defaults)
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sources = sources[0..(sources.index(:defaults))] +
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['prototype', 'effects', 'dragdrop', 'controls'] +
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(File.exists?("#{RAILS_ROOT}/public/javascripts/application.js") ? ['application'] : []) +
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sources[(sources.index(:defaults) + 1)..sources.length]
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sources.delete(:defaults)
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end
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sources.collect!{|s| s.to_s}
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sources = (should_merge? ?
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AssetPackage.targets_from_sources("javascripts", sources) :
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AssetPackage.sources_from_targets("javascripts", sources))
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sources.collect {|source| javascript_include_tag(source, options) }.join("\n")
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end
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def stylesheet_link_merged(*sources)
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options = sources.last.is_a?(Hash) ? sources.pop.stringify_keys : { }
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sources.collect!{|s| s.to_s}
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sources = (should_merge? ?
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AssetPackage.targets_from_sources("stylesheets", sources) :
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AssetPackage.sources_from_targets("stylesheets", sources))
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sources.collect { |source|
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source = stylesheet_path(source)
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tag("link", { "rel" => "Stylesheet", "type" => "text/css", "media" => "screen", "href" => source }.merge(options))
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}.join("\n")
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end
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private
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# rewrite compute_public_path to allow us to not include the query string timestamp
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# used by ActionView::Helpers::AssetTagHelper
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def compute_public_path(source, dir, ext=nil, add_asset_id=true)
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source = source.dup
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source << ".#{ext}" if File.extname(source).blank? && ext
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unless source =~ %r{^[-a-z]+://}
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source = "/#{dir}/#{source}" unless source[0] == ?/
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asset_id = rails_asset_id(source)
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source << '?' + asset_id if defined?(RAILS_ROOT) and add_asset_id and not asset_id.blank?
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source = "#{ActionController::Base.asset_host}#{@controller.request.relative_url_root}#{source}"
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end
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source
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end
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# rewrite javascript path function to not include query string timestamp
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def javascript_path(source)
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compute_public_path(source, 'javascripts', 'js', false)
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end
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# rewrite stylesheet path function to not include query string timestamp
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def stylesheet_path(source)
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compute_public_path(source, 'stylesheets', 'css', false)
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end
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end
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end
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