watch-and-push.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'fsevents'
require 'json'

ignores = JSON.parse(File.read(".couchappignore")).map { |s| Regexp.new(s) }
ignores.push /(^.git|.DS_Store|\.swp$|\.couchappignore)/
appdir = File.expand_path(File.dirname(__FILE__))

def build_css
  puts "------ #{Time.now.strftime("%k:%M")} Building CSS"
  puts `compass -c compass-config.rb --update`
end

def push_app
  puts "------ #{Time.now.strftime("%k:%M")} Pushing"
  `couchapp push`
end

stream = FSEvents::Stream.watch(File.dirname(__FILE__)) do |events|
  appfiles = events.modified_files.delete_if { |f|
    stripped = f.gsub(appdir + "/", "")
    ignores.any? { |regex| regex.match stripped }
  }
  build_css if appfiles.any? { |path| /\.sass$/ =~ path }
  push_app if appfiles.size > 0
end

stream.run