from __future__ import with_statement

from fabric.api import *
from fabric.contrib import django

env.hosts = ["user@example.com"]

REMOTE_PROJECT_ROOT = '/path/to/project/root/'

def _run_django_prod(command):
    """ Run a django command remotely using production settings """
    return run("PYTHONPATH=$PYTHONPATH:src bin/django-admin.py %s --settings=myapp.production" % command)


def deploy():
    # will fail if files are changed and not checked in
    # (it still wouldn't detect untracked files!)
    local("git diff-index --quiet HEAD")

    # archive HEAD
    local("git archive --format=tar HEAD | gzip > /tmp/papu.tgz")

    # send to server
    put('/tmp/papu.tgz', '/tmp/')

    with cd(REMOTE_PROJECT_ROOT):
        # unpack
        run('tar xzf /tmp/papu.tgz')

        _run_django_prod('syncdb')
        _run_django_prod('migrate')
        _run_django_prod('collectstatic --noinput')

        # restart the server - will fail if server wasn't running
        with settings(warn_only=True):
            run('pkill python')