mirror of
https://github.com/discourse/discourse.git
synced 2024-12-15 07:23:45 +08:00
30990006a9
This reduces chances of errors where consumers of strings mutate inputs and reduces memory usage of the app. Test suite passes now, but there may be some stuff left, so we will run a few sites on a branch prior to merging
97 lines
2.1 KiB
Ruby
97 lines
2.1 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
require 'listen'
|
|
|
|
module Stylesheet
|
|
class Watcher
|
|
REDIS_KEY = "dev_last_used_theme_id"
|
|
|
|
def self.theme_id=(v)
|
|
$redis.set(REDIS_KEY, v)
|
|
end
|
|
|
|
def self.theme_id
|
|
($redis.get(REDIS_KEY) || SiteSetting.default_theme_id).to_i
|
|
end
|
|
|
|
def self.watch(paths = nil)
|
|
watcher = new(paths)
|
|
watcher.start
|
|
watcher
|
|
end
|
|
|
|
def initialize(paths)
|
|
@paths = paths || Watcher.default_paths
|
|
@queue = Queue.new
|
|
end
|
|
|
|
def self.default_paths
|
|
return @default_paths if @default_paths
|
|
|
|
@default_paths = ["app/assets/stylesheets"]
|
|
Discourse.plugins.each do |p|
|
|
@default_paths << File.dirname(p.path).sub(Rails.root.to_s, '').sub(/^\//, '')
|
|
end
|
|
@default_paths
|
|
end
|
|
|
|
def start
|
|
|
|
Thread.new do
|
|
begin
|
|
while true
|
|
worker_loop
|
|
end
|
|
rescue => e
|
|
STDERR.puts "CSS change notifier crashed #{e}"
|
|
end
|
|
end
|
|
|
|
root = Rails.root.to_s
|
|
|
|
listener_opts = { ignore: /xxxx/ }
|
|
listener_opts[:force_polling] = true if ENV['FORCE_POLLING']
|
|
|
|
@paths.each do |watch|
|
|
Thread.new do
|
|
begin
|
|
listener = Listen.to("#{root}/#{watch}", listener_opts) do |modified, added, _|
|
|
paths = [modified, added].flatten
|
|
paths.compact!
|
|
paths.map! { |long| long[(root.length + 1)..-1] }
|
|
process_change(paths)
|
|
end
|
|
rescue => e
|
|
STDERR.puts "Failed to listen for CSS changes at: #{watch}\n#{e}"
|
|
end
|
|
listener.start
|
|
sleep
|
|
end
|
|
end
|
|
end
|
|
|
|
def worker_loop
|
|
@queue.pop
|
|
while @queue.length > 0
|
|
@queue.pop
|
|
end
|
|
|
|
Stylesheet::Manager.cache.clear
|
|
|
|
message = ["desktop", "mobile", "admin"].map do |name|
|
|
Stylesheet::Manager.stylesheet_data(name.to_sym, Stylesheet::Watcher.theme_id)
|
|
end.flatten
|
|
MessageBus.publish '/file-change', message
|
|
end
|
|
|
|
def process_change(paths)
|
|
paths.each do |path|
|
|
if path =~ /\.(css|scss)$/
|
|
@queue.push path
|
|
end
|
|
end
|
|
end
|
|
|
|
end
|
|
end
|