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Encoding.default_external = "UTF-8" if defined?(Encoding)
require 'json'
require 'bundler/gem_tasks'
require 'set'
# returns the source filename for a named file in the 'dependencies'
# array of a JSON build file
# (e.g., if the JSON build file contains
#
# "dependencies": {
# "jquery": ">=1.6",
# "ui.core": "1.9.2",
# "ui.widget": "1.9.2"
# },
#
# then "ui.widget" returns "widget.js")
#
# The only exception is "jquery", which doesn't follow the
# same naming conventions so it's a special case.
def source_file_for_dependency_entry(caller, dep_entry)
p = Pathname.new caller
parent_path = p.parent
parent_path.join(dep_entry + '.js').to_s
end
# return a Hash of dependency info, whose keys are jquery-ui
# source files and values are Arrays containing the source files
# they depend on
def map_dependencies
dependencies = {}
Dir.glob("jquery-ui/ui/**/*.js").each do |path|
basename = File.basename path
file = File.read path
matchdata = file.match(/define\(\s*\[\s*([\"\.\/\,\w\s*\:]+)\]/m)
next if matchdata.nil?
deps = matchdata[1]
# remove lines with comments
deps = deps.gsub(/\/\/.+\s/, "")
# remove all non-path symbols
deps = deps.gsub(/[\r\n\t\"\[\]\s]/, "")
deps_paths = deps.split(',')
deps_paths.map!(&method(:remove_js_extension))
# None of jquery.ui files should depend on jquery.js,
# so we remove 'jquery' from the list of dependencies for all files
deps_paths.reject! {|d| d == "jquery" }
deps_paths.map! {|d| source_file_for_dependency_entry path, d }
dependencies[basename] = deps_paths
end
dependencies
end
def dependency_hash
@dependency_hash ||= map_dependencies
end
def version
JSON.load(File.read('jquery-ui/package.json'))['version']
end
task :submodule do
sh 'git submodule update --init' unless File.exist?('jquery-ui/package.json')
end
def get_js_dependencies(basename)
dependencies = dependency_hash[basename]
if dependencies.nil?
puts "Warning: No dependencies found for #{basename}"
dependencies = []
end
# Make sure we do not package assets with broken dependencies
dependencies.each do |dep|
unless File.exist?("#{dep}")
fail "#{basename}: missing #{dep}"
end
end
dependencies
end
def remove_js_extension(path)
path.chomp(".js")
end
def protect_copyright_notice(source_code)
# YUI does not minify comments starting with "/*!"
# The i18n files start with non-copyright comments, so we require a newline
# to avoid protecting those
source_code.gsub!(/\A\s*\/\*\r?\n/, "/*!\n")
end
def build_image_dependencies(source_code)
image_dependencies = Set.new source_code.scan(/url\("?images\/([-_.a-zA-Z0-9]+)"?\)/).map(&:first)
code = image_dependencies.inject("") do |acc, img|
acc += " *= depend_on_asset \"jquery-ui/#{img}\"\n"
end
end
desc "Remove the app directory"
task :clean do
rm_rf 'app'
end
desc "Generate the JavaScript assets"
task :javascripts => :submodule do
Rake.rake_output_message 'Generating javascripts'
target_dir = "app/assets/javascripts"
target_ui_dir = "#{target_dir}/jquery-ui"
mkdir_p target_ui_dir
mkdir_p target_ui_dir + '/effects'
mkdir_p target_ui_dir + '/widgets'
mkdir_p target_ui_dir + '/i18n'
mkdir_p target_ui_dir + '/vendor/jquery-color'
Dir.glob("jquery-ui/ui/**/*.js").each do |path|
basename = File.basename(path)
clean_path = path.gsub('/ui', '')
dep_modules = get_js_dependencies(basename).map(&method(:remove_js_extension))
File.open("#{target_dir}/#{clean_path}", "w") do |out|
dep_modules.each do |mod|
mod.gsub!('/ui', '')
out.write("//= require #{mod}\n")
end
# core.js is deprecated and uses define function which is usually unavailable
# so we need only dependency loading there with no file contents
next if clean_path == 'jquery-ui/core.js'
out.write("\n") unless dep_modules.empty?
source_code = File.read(path)
source_code.gsub!('@VERSION', version)
protect_copyright_notice(source_code)
out.write(source_code)
end
end
# process the i18n files separately for performance, since they will not have dependencies
# https://github.com/joliss/jquery-ui-rails/issues/9
Dir.glob("jquery-ui/ui/i18n/*.js").each do |path|
basename = File.basename(path)
File.open("#{target_ui_dir}/i18n/#{basename}", "w") do |out|
source_code = File.read(path)
source_code.gsub!('@VERSION', version)
protect_copyright_notice(source_code)
out.write(source_code)
end
end
File.open("#{target_ui_dir}/effect.all.js", "w") do |out|
Dir.glob("jquery-ui/ui/effects/*.js").sort.each do |path|
clean_path = remove_js_extension(path).gsub('/ui', '')
out.write("//= require #{clean_path}\n")
end
end
File.open("#{target_dir}/jquery-ui.js", "w") do |out|
Dir.glob("jquery-ui/ui/*.js").sort.each do |path|
clean_path = remove_js_extension(path).gsub('/ui', '')
out.write("//= require #{clean_path}\n")
end
Dir.glob("jquery-ui/ui/effects/*.js").sort.each do |path|
clean_path = remove_js_extension(path).gsub('/ui', '')
out.write("//= require #{clean_path}\n")
end
Dir.glob("jquery-ui/ui/widgets/*.js").sort.each do |path|
clean_path = remove_js_extension(path).gsub('/ui', '')
out.write("//= require #{clean_path}\n")
end
Dir.glob("jquery-ui/ui/vendor/jquery-color/*.js").sort.each do |path|
clean_path = remove_js_extension(path).gsub('/ui', '')
out.write("//= require #{clean_path}\n")
end
end
end
desc "Generate the CSS assets"
task :stylesheets => :submodule do
Rake.rake_output_message 'Generating stylesheets'
target_dir = "app/assets/stylesheets"
target_ui_dir = "#{target_dir}/jquery-ui"
mkdir_p target_ui_dir
File.open("#{target_dir}/jquery-ui.css", "w") do |out|
out.write("//= require jquery-ui/all\n")
end
css_dir = "jquery-ui/themes/base"
Dir.glob("#{css_dir}/*.css").each do |path|
basename = File.basename(path)
source_code = File.read(path)
source_code.gsub!('@VERSION', version)
protect_copyright_notice(source_code)
extra_dependencies = []
# Is "theme" listed among the dependencies for the matching JS file?
unless basename =~ /\.(all|base|core)\./
if dependencies = dependency_hash[basename.sub(/\.css/, '.js')]
dependencies.each do |dependency|
dependency = dependency.sub(/\.js$/, '')
dependent_stylesheet = "#{dependency}.css"
extra_dependencies << dependency if File.exists?("#{css_dir}/#{dependent_stylesheet}")
end
extra_dependencies << 'theme'
end
end
extra_dependencies.reverse.each do |dep|
# Add after first comment block
source_code = source_code.sub(/\A((.*?\*\/\n)?)/m, "\\1/*\n *= require jquery-ui/#{dep}\n */\n")
end
# Use "require" instead of @import
source_code.gsub!(/^@import (.*)$/) { |s|
m = s.match(/^@import (url\()?"(?<module>[-_.a-zA-Z]+)\.css"\)?;/) \
or fail "Cannot parse import: #{s}"
"/*\n *= require jquery-ui/#{m['module']}\n */"
}
# Be cute: collapse multiple require comment blocks into one
source_code.gsub!(/^( \*= require .*)\n \*\/(\n+)\/\*\n(?= \*= require )/, '\1\2')
source_code.gsub!(/\A(\/\*!.+?\*\/\s)/m, "\\1\n/*\n#{build_image_dependencies(source_code)} */\n\n") unless build_image_dependencies(source_code).empty?
# Replace hard-coded image URLs with asset path helpers
image_re = /url\("?images\/([-_.a-zA-Z0-9]+)"?\)/
extname = source_code =~ image_re ? ".erb" : ""
source_code.gsub!(image_re, 'url(<%= image_path("jquery-ui/\1") %>)')
File.open("#{target_ui_dir}/#{basename}#{extname}", "w") do |out|
out.write(source_code)
end
end
end
desc "Generate the image assets"
task :images => :submodule do
Rake.rake_output_message 'Copying images'
target_dir = "app/assets/images/jquery-ui"
mkdir_p target_dir
FileUtils.cp(Dir.glob("jquery-ui/themes/base/images/*"), target_dir)
end
desc "Update Jquery::Ui::Rails::JQUERY_UI_VERSION"
task :version => :submodule do
Rake.rake_output_message "Setting Jquery::Ui::Rails::JQUERY_UI_VERSION = \"#{version}\""
versionRb = 'lib/jquery/ui/rails/version.rb'
versionRbSource = File.read(versionRb)
versionDefinition = "JQUERY_UI_VERSION = \"#{version}\""
versionRbSource.sub! /JQUERY_UI_VERSION = "[^"]*"/, versionDefinition \
or fail "Could not find JQUERY_UI_VERSION in #{versionRb}"
File.open(versionRb, 'w') do |out|
out.write(versionRbSource)
end
end
desc "Clean and then generate everything (default)"
task :assets => [:clean, :javascripts, :stylesheets, :images, :version]
task :build => :assets
task :default => :assets
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