zulip/tools/restart-server

#!/usr/bin/env python
import os
import sys
import subprocess
import pylibmc
import traceback

# Color codes
OKBLUE = '\033[94m'
OKGREEN = '\033[92m'
WARNING = '\033[93m'
FAIL = '\033[91m'
ENDC = '\033[0m'

os.chdir("/home/humbug/humbug")

#subprocess.check_call(["python", "manage.py", "syncdb"], stdout=open('/dev/null', 'w'))

# Delete all .pyc files to avoid old module files hanging around
subprocess.check_call(["find", ".", "-name", "*.pyc", "-delete"], stdout=open('/dev/null', 'w'))

# Update static files
subprocess.check_call(["./tools/update-prod-static"])

# Restart the FastCGI process, which is running in a shell loop in screen.
# TODO: real daemonization
for cmd in ('runfcgi', 'runtornado', "process_user_activity"):
    try:
        subprocess.check_call(["pkill", "-f", "python manage.py " + cmd])
    except subprocess.CalledProcessError:
        print "%sCould not kill %s; is it running?%s" % (WARNING, cmd, ENDC)

try:
    if not pylibmc.Client(['127.0.0.1']).flush_all():
        print "%sflush_all returned False%s" % (WARNING, ENDC)
    # There doesn't seem to be a method to close a pylibmc Client object.
except:
    print "%sCould not flush cache:%s" % (WARNING, ENDC)
    traceback.print_exc()

print OKGREEN + "Application restarted successfully!" + ENDC