97 lines
2.1 KiB
Ruby
97 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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require 'listen'
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module Stylesheet
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class Watcher
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REDIS_KEY = "dev_last_used_theme_id"
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def self.theme_id=(v)
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$redis.set(REDIS_KEY, v)
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end
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def self.theme_id
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($redis.get(REDIS_KEY) || SiteSetting.default_theme_id).to_i
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end
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def self.watch(paths = nil)
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watcher = new(paths)
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watcher.start
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watcher
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end
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def initialize(paths)
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@paths = paths || Watcher.default_paths
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@queue = Queue.new
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end
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def self.default_paths
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return @default_paths if @default_paths
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@default_paths = ["app/assets/stylesheets"]
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Discourse.plugins.each do |p|
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@default_paths << File.dirname(p.path).sub(Rails.root.to_s, '').sub(/^\//, '')
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end
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@default_paths
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end
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def start
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Thread.new do
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begin
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while true
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worker_loop
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end
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rescue => e
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STDERR.puts "CSS change notifier crashed #{e}"
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end
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end
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root = Rails.root.to_s
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listener_opts = { ignore: /xxxx/ }
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listener_opts[:force_polling] = true if ENV['FORCE_POLLING']
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@paths.each do |watch|
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Thread.new do
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begin
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listener = Listen.to("#{root}/#{watch}", listener_opts) do |modified, added, _|
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paths = [modified, added].flatten
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paths.compact!
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paths.map! { |long| long[(root.length + 1)..-1] }
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process_change(paths)
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end
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rescue => e
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STDERR.puts "Failed to listen for CSS changes at: #{watch}\n#{e}"
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end
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listener.start
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sleep
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end
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end
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end
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def worker_loop
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@queue.pop
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while @queue.length > 0
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@queue.pop
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end
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Stylesheet::Manager.cache.clear
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message = ["desktop", "mobile", "admin"].map do |name|
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Stylesheet::Manager.stylesheet_data(name.to_sym, Stylesheet::Watcher.theme_id)
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end.flatten
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MessageBus.publish '/file-change', message
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end
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def process_change(paths)
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paths.each do |path|
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if path =~ /\.(css|scss)$/
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@queue.push path
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end
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end
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end
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end
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end
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