139 lines
3.9 KiB
Ruby
139 lines
3.9 KiB
Ruby
# frozen_string_literal: true
|
||
|
||
require "listen"
|
||
|
||
module Stylesheet
|
||
class Watcher
|
||
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 |plugin|
|
||
if plugin.path.to_s.include?(Rails.root.to_s)
|
||
path = File.dirname(plugin.path).sub(Rails.root.to_s, "").sub(%r{\A/}, "")
|
||
path << "/assets/stylesheets"
|
||
@default_paths << path if File.exist?(path)
|
||
else
|
||
# if plugin doesn’t seem to be in our app, consider it as outside of the app
|
||
# and ignore it
|
||
warn("[stylesheet watcher] Ignoring outside of rails root plugin: #{plugin.path.to_s}")
|
||
end
|
||
end
|
||
@default_paths
|
||
end
|
||
|
||
def start
|
||
Thread.new do
|
||
begin
|
||
worker_loop while true
|
||
rescue => e
|
||
STDERR.puts "CSS change notifier crashed \n#{e}"
|
||
start
|
||
end
|
||
end
|
||
|
||
listener_opts = { ignore: [/node_modules/], only: /\.s?css\z/ }
|
||
listener_opts[:force_polling] = true if ENV["FORCE_POLLING"]
|
||
|
||
Thread.new do
|
||
begin
|
||
plugins_paths =
|
||
Dir
|
||
.glob("#{Rails.root}/plugins/*")
|
||
.map do |file|
|
||
if File.symlink?(file)
|
||
File.expand_path(File.readlink(file), "#{Rails.root}/plugins")
|
||
else
|
||
file
|
||
end
|
||
end
|
||
.compact
|
||
|
||
listener =
|
||
Listen.to(*@paths, listener_opts) do |modified, added, _|
|
||
paths = [modified, added].flatten
|
||
paths.compact!
|
||
paths.map! do |long|
|
||
plugin_name = nil
|
||
plugins_paths.each do |plugin_path|
|
||
if long.include?("#{plugin_path}/")
|
||
plugin_name = File.basename(plugin_path)
|
||
break
|
||
end
|
||
end
|
||
|
||
target = nil
|
||
target_match =
|
||
long.match(/admin|desktop|mobile|publish|wizard|wcag|color_definitions/)
|
||
target = target_match[0] if target_match&.length
|
||
|
||
{ basename: File.basename(long), target: target, plugin_name: plugin_name }
|
||
end
|
||
|
||
process_change(paths)
|
||
end
|
||
rescue => e
|
||
STDERR.puts "Failed to listen for CSS changes: \n#{e}"
|
||
end
|
||
listener.start
|
||
sleep
|
||
end
|
||
end
|
||
|
||
def core_assets_refresh(target)
|
||
if target&.match(/wcag|color_definitions/)
|
||
Stylesheet::Manager.clear_color_scheme_cache!
|
||
return
|
||
end
|
||
|
||
targets = target ? [target] : %w[desktop mobile admin]
|
||
Stylesheet::Manager.clear_core_cache!(targets)
|
||
message =
|
||
targets.map! { |name| Stylesheet::Manager.new.stylesheet_data(name.to_sym) }.flatten!
|
||
MessageBus.publish "/file-change", message
|
||
end
|
||
|
||
def plugin_assets_refresh(plugin_name, target)
|
||
Stylesheet::Manager.clear_plugin_cache!(plugin_name)
|
||
targets = []
|
||
if target.present?
|
||
if DiscoursePluginRegistry.stylesheets_exists?(plugin_name, target.to_sym)
|
||
targets.push("#{plugin_name}_#{target.to_s}")
|
||
end
|
||
else
|
||
targets.push(plugin_name)
|
||
end
|
||
message =
|
||
targets.map! { |name| Stylesheet::Manager.new.stylesheet_data(name.to_sym) }.flatten!
|
||
MessageBus.publish "/file-change", message
|
||
end
|
||
|
||
def worker_loop
|
||
path = @queue.pop
|
||
|
||
@queue.pop while @queue.length > 0
|
||
|
||
if path[:plugin_name]
|
||
plugin_assets_refresh(path[:plugin_name], path[:target])
|
||
else
|
||
core_assets_refresh(path[:target])
|
||
end
|
||
end
|
||
|
||
def process_change(paths)
|
||
paths.each { |path| @queue.push path }
|
||
end
|
||
end
|
||
end
|