discourse/lib/middleware/turbo_dev.rb

23 lines
644 B
Ruby

module Middleware
# this class cheats and bypasses rails altogether if the client attempts
# to download a static asset
class TurboDev
def initialize(app, settings={})
@app = app
end
def call(env)
# hack to bypass all middleware if serving assets, a lot faster 4.5 seconds -> 1.5 seconds
if (etag = env['HTTP_IF_NONE_MATCH']) && env['REQUEST_PATH'] =~ /^\/assets\//
name = $'
etag = etag.gsub "\"", ""
asset = Rails.application.assets.find_asset(name)
if asset && asset.digest == etag
return [304,{},[]]
end
end
@app.call(env)
end
end
end