gistfile1.py

from fabric.api import *
import time

env.name = 'myapp'
env.python = 'python2.6'
env.time = int(time.time())

env.buildroot = '/tmp/%s/%d' % (env.name, env.time)
env.app = '%s/%s' % (env.buildroot, env.name)
env.deploy = '/usr/local/%s/releases' % env.name
env.hosts = ['foo.bar.com']
env.repo = 'git@github.com:foo/repo.git'
env.blob = '%s-%d.tgz' % (env.name, env.time)

def all():
    mkvirtualenv()
    prepare()
    build()
    deploy()
    restart_daemon()

def deploy():
    put('/tmp/%s' % env.blob, '/tmp')
    with settings(hide('stdout')):
        with cd(env.deploy):
            run('mkdir %s' % env.time)
            with cd('%s' % env.time):
                run('tar xzf /tmp/%s' % env.blob)
            run('rm -f current; ln -sf %s current' % env.time)

def build():
    with settings(hide('stdout')):
        with lcd(env.buildroot):
            with prefix('. bin/activate'):
                local('pip install -r %s/requirements.txt' % env.buildroot)
            local('virtualenv --relocatable .')
            local('perl -pi -e "s,%s,%s/current," bin/activate*' % (env.buildroot, env.deploy))
            local('tar czf /tmp/%s .' % env.blob)

def mkvirtualenv():
    with settings(hide('stdout')):
        local('virtualenv --no-site-packages --setuptools --python %s %s' % (env.python, env.buildroot))

def prepare():
    dirs = ['tmp', env.name]

    with lcd(env.buildroot):
        local('mkdir %s' % ' '.join(dirs))
        with settings(hide('stdout')):
            with lcd('tmp'):
                with settings(hide('stderr')):
                    local('git clone %s %s' % (env.repo, env.name))
                with lcd(env.name):
                    local('git archive master | tar -xC %s' % env.buildroot)
                local('rm -rf %s' % env.name)

def restart_apache():
    run('sv restart godzirra')