fabfile.py

from fabric.api import env, hosts, cd, lcd, local, task, run, put, prompt, sudo
from fabric.contrib.project import rsync_project
import os, ConfigParser
import sys


"""
Two main uses:

1) Direct invocation
fab -H HOST -u USER --port PORT deploy

2) Using default values from configuration file under ./etc/fab.ini
fab server:cobweb deploy

"""

# GLOBALS
CURRENT_PATH = os.path.abspath(os.path.dirname(__file__))
config=None

@task
def server(serv):
    """Read default user,host,port values from ./etc/fab.ini"""
    env.hosts = [_config("hosts", serv),]
    env.user = _config("user", serv)
    env.port = _config("port", serv)
    if not ( env.port and env.user and env.hosts):
        print "Missing configuration values for " + `serv`
        sys.exit(1)

@task
def deploy(version='cobweb-dev'):
    """Rsync everything to server, pip installs as user and restarts apache"""

    REMOTE_PATH = os.path.join ( '~/dist/pcapi', version )

    local("""rsync -e"ssh -p%s" --exclude resources -C -av %s/ %s@%s:%s"""
    % (env.port, CURRENT_PATH, env.user, env.host, REMOTE_PATH ) )
    
    with cd(REMOTE_PATH):
        run("echo y | pip uninstall pcapi")
        run("pip install --user .")
        #sudo("/etc/init.d/httpd graceful")

def _config(var, section='install'):
    """ Read default values from fab.ini. Missing values are None """
    global config
    if config == None:
        config = ConfigParser.ConfigParser()
        conf_file = os.sep.join((CURRENT_PATH, 'etc', 'fab.ini'))
        config.read(conf_file)
    return config.get(section, var)