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require 'erb'
require 'rack/livereload/processing_skip_analyzer'
require 'rack/livereload/body_processor'
module Rack
class LiveReload
attr_reader :app
def initialize(app, options = {})
@app, @options = app, options
end
def call(env)
dup._call(env)
end
def _call(env)
_, path, file = (env['PATH_INFO'] || '').split('/')
if path == '__rack' && ::File.file?(target = ::File.expand_path("../../../js/#{file}", __FILE__))
deliver_file(target)
else
status, headers, body = result = @app.call(env)
return result if ProcessingSkipAnalyzer.skip_processing?(result, env, @options)
processor = BodyProcessor.new(body, @options)
processor.process!(env)
headers['Content-Length'] = processor.content_length.to_s
if processor.livereload_added
headers['X-Rack-LiveReload'] = '1'
end
[ status, headers, processor.new_body ]
end
end
private
def deliver_file(file)
type = case ::File.extname(file)
when '.js'
'text/javascript'
when '.swf'
'application/swf'
end
[ 200, { 'Content-Type' => type, 'Content-Length' => ::File.size(file).to_s }, [ ::File.read(file) ] ]
end
end
end
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