discourse/lib/tasks/assets.rake
David Taylor fcae4a8faf
DEV: Do not include CDN domain in the sourceMappingURL (#15887)
If no path is supplied, browsers will look for the map on the same path as the JS file itself. This fixes two problems that we see in production:

1. When compiling assets against one CDN, and then re-using them on a site with a different CDN, the sourceMappingUrls would be incorrect and print warnings in the console

2. If both an S3 CDN and an app CDN are configured, we were using the S3 CDN for the JS and the app CDN for the map. This commit will make sure we use the S3 CDN for both.
2022-02-10 15:37:44 +00:00

437 lines
13 KiB
Ruby

# frozen_string_literal: true
task 'assets:precompile:before' do
require 'uglifier'
require 'open3'
unless %w{profile production}.include? Rails.env
raise "rake assets:precompile should only be run in RAILS_ENV=production, you are risking unminified assets"
end
# Ensure we ALWAYS do a clean build
# We use many .erbs that get out of date quickly, especially with plugins
STDERR.puts "Purging temp files"
`rm -fr #{Rails.root}/tmp/cache`
# Ensure we clear emoji cache before pretty-text/emoji/data.js.es6.erb
# is recompiled
Emoji.clear_cache
$node_compress = `which terser`.present? && !ENV['SKIP_NODE_UGLIFY']
unless ENV['USE_SPROCKETS_UGLIFY']
$bypass_sprockets_uglify = true
Rails.configuration.assets.js_compressor = nil
Rails.configuration.assets.gzip = false
end
STDERR.puts "Bundling assets"
# in the past we applied a patch that removed asset postfixes, but it is terrible practice
# leaving very complicated build issues
# https://github.com/rails/sprockets-rails/issues/49
require 'sprockets'
require 'digest/sha1'
if ENV['EMBER_CLI_PROD_ASSETS'] != "0"
# Remove the assets that Ember CLI will handle for us
Rails.configuration.assets.precompile.reject! do |asset|
asset.is_a?(String) && is_ember_cli_asset?(asset)
end
end
end
task 'assets:precompile:css' => 'environment' do
if ENV["DONT_PRECOMPILE_CSS"] == "1"
STDERR.puts "Skipping CSS precompilation, ensure CSS lives in a shared directory across hosts"
else
STDERR.puts "Start compiling CSS: #{Time.zone.now}"
RailsMultisite::ConnectionManagement.each_connection do |db|
# CSS will get precompiled during first request if tables do not exist.
if ActiveRecord::Base.connection.table_exists?(Theme.table_name)
STDERR.puts "-------------"
STDERR.puts "Compiling CSS for #{db} #{Time.zone.now}"
begin
Stylesheet::Manager.precompile_css if db == "default"
Stylesheet::Manager.precompile_theme_css
rescue PG::UndefinedColumn, ActiveModel::MissingAttributeError, NoMethodError => e
STDERR.puts "#{e.class} #{e.message}: #{e.backtrace.join("\n")}"
STDERR.puts "Skipping precompilation of CSS cause schema is old, you are precompiling prior to running migrations."
end
end
end
STDERR.puts "Done compiling CSS: #{Time.zone.now}"
end
end
task 'assets:flush_sw' => 'environment' do
begin
hostname = Discourse.current_hostname
default_port = SiteSetting.force_https? ? 443 : 80
port = SiteSetting.port.to_i > 0 ? SiteSetting.port : default_port
STDERR.puts "Flushing service worker script"
`curl -s -m 1 --resolve '#{hostname}:#{port}:127.0.0.1' #{Discourse.base_url}/service-worker.js > /dev/null`
STDERR.puts "done"
rescue
STDERR.puts "Warning: unable to flush service worker script"
end
end
def is_ember_cli_asset?(name)
return false if ENV['EMBER_CLI_PROD_ASSETS'] == '0'
%w(application.js admin.js ember_jquery.js pretty-text-bundle.js start-discourse.js vendor.js).include?(name)
end
def assets_path
"#{Rails.root}/public/assets"
end
def global_path_klass
@global_path_klass ||= Class.new do
extend GlobalPath
end
end
def cdn_path(p)
global_path_klass.cdn_path(p)
end
def cdn_relative_path(p)
global_path_klass.cdn_relative_path(p)
end
def compress_node(from, to)
to_path = "#{assets_path}/#{to}"
assets = cdn_relative_path("/assets")
assets_additional_path = (d = File.dirname(from)) == "." ? "" : "/#{d}"
source_map_root = assets + assets_additional_path
source_map_url = "#{File.basename(to)}.map"
base_source_map = assets_path + assets_additional_path
cmd = <<~EOS
terser '#{assets_path}/#{from}' -m -c -o '#{to_path}' --source-map "base='#{base_source_map}',root='#{source_map_root}',url='#{source_map_url}'"
EOS
STDERR.puts cmd
result = `#{cmd} 2>&1`
unless $?.success?
STDERR.puts result
exit 1
end
result
end
def compress_ruby(from, to)
data = File.read("#{assets_path}/#{from}")
uglified, map = Uglifier.new(comments: :none,
source_map: {
filename: File.basename(from),
output_filename: File.basename(to)
}
)
.compile_with_map(data)
dest = "#{assets_path}/#{to}"
File.write(dest, uglified << "\n//# sourceMappingURL=#{cdn_path "/assets/#{to}.map"}")
File.write(dest + ".map", map)
GC.start
end
def gzip(path)
STDERR.puts "gzip -f -c -9 #{path} > #{path}.gz"
STDERR.puts `gzip -f -c -9 #{path} > #{path}.gz`.strip
raise "gzip compression failed: exit code #{$?.exitstatus}" if $?.exitstatus != 0
end
# different brotli versions use different parameters
def brotli_command(path, max_compress)
compression_quality = max_compress ? "11" : "6"
"brotli -f --quality=#{compression_quality} #{path} --output=#{path}.br"
end
def brotli(path, max_compress)
STDERR.puts brotli_command(path, max_compress)
STDERR.puts `#{brotli_command(path, max_compress)}`
raise "brotli compression failed: exit code #{$?.exitstatus}" if $?.exitstatus != 0
STDERR.puts `chmod +r #{path}.br`.strip
raise "chmod failed: exit code #{$?.exitstatus}" if $?.exitstatus != 0
end
def max_compress?(path, locales)
return false if Rails.configuration.assets.skip_minification.include? path
return false if is_ember_cli_asset?(path)
return true unless path.include? "locales/"
path_locale = path.delete_prefix("locales/").delete_suffix(".js")
return true if locales.include? path_locale
false
end
def compress(from, to)
if $node_compress
compress_node(from, to)
else
compress_ruby(from, to)
end
end
def concurrent?
if ENV["SPROCKETS_CONCURRENT"] == "1"
concurrent_compressors = []
executor = Concurrent::FixedThreadPool.new(Concurrent.processor_count)
yield(Proc.new { |&block| concurrent_compressors << Concurrent::Future.execute(executor: executor) { block.call } })
concurrent_compressors.each(&:wait!)
else
yield(Proc.new { |&block| block.call })
end
end
def current_timestamp
Process.clock_gettime(Process::CLOCK_MONOTONIC)
end
def log_task_duration(task_description, &task)
task_start = current_timestamp
task.call
STDERR.puts "Done '#{task_description}' : #{(current_timestamp - task_start).round(2)} secs"
STDERR.puts
end
def geolite_dbs
@geolite_dbs ||= %w{
GeoLite2-City
GeoLite2-ASN
}
end
def get_mmdb_time(root_path)
mmdb_time = nil
geolite_dbs.each do |name|
path = File.join(root_path, "#{name}.mmdb")
if File.exist?(path)
mmdb_time = File.mtime(path)
else
mmdb_time = nil
break
end
end
mmdb_time
end
def copy_maxmind(from_path, to_path)
puts "Copying MaxMindDB from #{from_path} to #{to_path}"
geolite_dbs.each do |name|
from = File.join(from_path, "#{name}.mmdb")
to = File.join(to_path, "#{name}.mmdb")
FileUtils.cp(from, to, preserve: true)
end
end
def copy_ember_cli_assets
ember_dir = "app/assets/javascripts/discourse"
ember_cli_assets = "#{ember_dir}/dist/assets/"
assets = {}
files = {}
log_task_duration('ember build -prod') {
unless system("yarn --cwd #{ember_dir} run ember build -prod")
STDERR.puts "Error running ember build"
exit 1
end
}
# Copy assets and generate manifest data
log_task_duration('Copy assets and generate manifest data') {
Dir["#{ember_cli_assets}**/*"].each do |f|
if File.file?(f)
rel_file = f.sub(ember_cli_assets, "")
file_digest = Digest::SHA384.digest(File.read(f))
digest = if f =~ /\-([a-f0-9]+)\./
Regexp.last_match[1]
else
Digest.hexencode(file_digest)[0...32]
end
dest = "public/assets"
dest_sub = dest
if rel_file =~ /^([a-z\-\_]+)\//
dest_sub = "#{dest}/#{Regexp.last_match[1]}"
end
FileUtils.mkdir_p(dest_sub) unless Dir.exist?(dest_sub)
log_file = File.basename(rel_file).sub("-#{digest}", "")
# We need a few hacks here to move what Ember uses to what Rails wants
case log_file
when "discourse.js"
log_file = "application.js"
rel_file.sub!(/^discourse/, "application")
when "test-support.js"
log_file = "discourse/tests/test-support-rails.js"
rel_file = "discourse/tests/test-support-rails-#{digest}.js"
when "test-helpers.js"
log_file = "discourse/tests/test-helpers-rails.js"
rel_file = "discourse/tests/test-helpers-rails-#{digest}.js"
end
res = FileUtils.cp(f, "#{dest}/#{rel_file}")
assets[log_file] = rel_file
files[rel_file] = {
"logical_path" => log_file,
"mtime" => File.mtime(f).iso8601(9),
"size" => File.size(f),
"digest" => digest,
"integrity" => "sha384-#{Base64.encode64(file_digest).chomp}"
}
end
end
}
# Update manifest file
log_task_duration('Update manifest file') {
manifest_result = Dir["public/assets/.sprockets-manifest-*.json"]
if manifest_result && manifest_result.size == 1
json = JSON.parse(File.read(manifest_result[0]))
json['files'].merge!(files)
json['assets'].merge!(assets)
File.write(manifest_result[0], json.to_json)
end
}
end
task 'test_ember_cli_copy' do
copy_ember_cli_assets
end
task 'assets:precompile' => 'assets:precompile:before' do
copy_ember_cli_assets if ENV['EMBER_CLI_PROD_ASSETS'] != '0'
refresh_days = GlobalSetting.refresh_maxmind_db_during_precompile_days
if refresh_days.to_i > 0
mmdb_time = get_mmdb_time(DiscourseIpInfo.path)
backup_mmdb_time =
if GlobalSetting.maxmind_backup_path.present?
get_mmdb_time(GlobalSetting.maxmind_backup_path)
end
mmdb_time ||= backup_mmdb_time
if backup_mmdb_time && backup_mmdb_time >= mmdb_time
copy_maxmind(GlobalSetting.maxmind_backup_path, DiscourseIpInfo.path)
mmdb_time = backup_mmdb_time
end
if !mmdb_time || mmdb_time < refresh_days.days.ago
puts "Downloading MaxMindDB..."
mmdb_thread = Thread.new do
begin
geolite_dbs.each do |db|
DiscourseIpInfo.mmdb_download(db)
end
if GlobalSetting.maxmind_backup_path.present?
copy_maxmind(DiscourseIpInfo.path, GlobalSetting.maxmind_backup_path)
end
rescue OpenURI::HTTPError => e
STDERR.puts("*" * 100)
STDERR.puts("MaxMindDB (#{name}) could not be downloaded: #{e}")
STDERR.puts("*" * 100)
Rails.logger.warn("MaxMindDB (#{name}) could not be downloaded: #{e}")
end
end
end
end
if $bypass_sprockets_uglify
puts "Compressing Javascript and Generating Source Maps"
manifest = Sprockets::Manifest.new(assets_path)
locales = Set.new(["en"])
RailsMultisite::ConnectionManagement.each_connection do |db|
locales.add(SiteSetting.default_locale)
end
log_task_duration('Done compressing all JS files') {
concurrent? do |proc|
manifest.files
.select { |k, v| k =~ /\.js$/ }
.each do |file, info|
path = "#{assets_path}/#{file}"
_file = (d = File.dirname(file)) == "." ? "_#{file}" : "#{d}/_#{File.basename(file)}"
_path = "#{assets_path}/#{_file}"
max_compress = max_compress?(info["logical_path"], locales)
if File.exist?(_path)
STDERR.puts "Skipping: #{file} already compressed"
elsif file.include? "discourse/tests"
STDERR.puts "Skipping: #{file}"
else
proc.call do
log_task_duration(file) {
STDERR.puts "Compressing: #{file}"
if max_compress
FileUtils.mv(path, _path)
compress(_file, file)
end
info["size"] = File.size(path)
info["mtime"] = File.mtime(path).iso8601
gzip(path)
brotli(path, max_compress)
}
end
end
end
end
}
# protected
manifest.send :save
if GlobalSetting.fallback_assets_path.present?
begin
FileUtils.cp_r("#{Rails.root}/public/assets/.", GlobalSetting.fallback_assets_path)
rescue => e
STDERR.puts "Failed to backup assets to #{GlobalSetting.fallback_assets_path}"
STDERR.puts e
STDERR.puts e.backtrace
end
end
end
mmdb_thread.join if mmdb_thread
end
Rake::Task["assets:precompile"].enhance do
class Sprockets::Manifest
def reload
@filename = find_directory_manifest(@directory)
@data = json_decode(File.read(@filename))
end
end
# cause on boot we loaded a blank manifest,
# we need to know where all the assets are to precompile CSS
# cause CSS uses asset_path
Rails.application.assets_manifest.reload
Rake::Task["assets:precompile:css"].invoke
end