Daily Scripts: djangoat.py (for Linux) chinese

Django, Linux, Python June 19th, 2009

Djangoat is short for Django Auto Tester, but I often pronounce it “djan-goat”… This script does monitor Django project directory by inotify mechanism, run unit tests when file changed, and notify errors through Mumbles if tests failed. It depends on inotify and Mumbles, so runs on Linux only, Mac version comes later…

Python code:

?Download djangoat.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
 
import commands
import datetime
import dbus
import dbus.service
import os
import sys 
 
from dbus.mainloop.glib import DBusGMainLoop
 
from pyinotify import WatchManager, ThreadedNotifier, \
                      ProcessEvent, IN_CLOSE_WRITE, \
                      ExcludeFilter
 
FIREFOX_DBUS_INTERFACE = 'org.mozilla.firefox.DBus'
FIREFOX_DBUS_PATH = '/org/mozilla/firefox/DBus'
 
class FireFoxDBus(dbus.service.Object):
    def __init__(self, bus_name):
        dbus.service.Object.__init__(self, bus_name, FIREFOX_DBUS_PATH)
 
    @dbus.service.signal(dbus_interface=FIREFOX_DBUS_INTERFACE, signature='ss')
    def DownloadComplete(self, title, subject):
        pass
 
# Which type of files' change should be monitor
MONITOR_EXTENSIONS = ('.py', '.html')
 
class Watcher(ProcessEvent):
    def process_IN_CLOSE_WRITE(self, event):
        global cmd
        global firefox_dbus
 
        for extension in MONITOR_EXTENSIONS:
            if event.pathname.endswith(extension):
                start_time = datetime.datetime.now()
                print start_time
                output = commands.getoutput(cmd)
                print output
                # If test failed, call mumbles for notification
                if not output.endswith('OK'):
                    firefox_dbus.DownloadComplete(start_time.isoformat(), output)
 
    def process_default(self, event):
        pass
 
if __name__ == '__main__':
    if len(sys.argv) < 2:
        print 'Please specify a path for monitoring...'
        sys.exit()
 
    path = sys.argv[1]
    cmd = "python %s/manage.py test -v 0" % path
 
    # Exclude filter object
    excl_file = os.path.join(os.getcwd(), 'exclude.patterns')
    excl = ExcludeFilter({excl_file: ('excl_lst',)})
 
    # Add watch
    wm = WatchManager()
    notifier = ThreadedNotifier(wm, Watcher())
    wm.add_watch(path, IN_CLOSE_WRITE, rec=True, \
                 auto_add=True, exclude_filter=excl)
 
    # Set up an event loop
    dbus_loop = DBusGMainLoop()
    name = dbus.service.BusName(FIREFOX_DBUS_INTERFACE,
                                bus=dbus.SessionBus(mainloop=dbus_loop))
    firefox_dbus = FireFoxDBus(name)
 
    try:
        notifier.loop()
    except KeyboardInterrupt:
        print 'Djangoat shut down...'
    except Exception, ex:
        print 'Exception in Djangoat: %s' % (ex)
?Download exclude.patterns
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#  -*- mode: python; -*-
 
# Exclude pattens
excl_lst = ['^\.git/',
            '^\.svn/',
           ]

Screenshoot:
djangoat
Code repository:
http://git.lazytech.info/?p=daily-scripts.git

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