git-deploy with Plone

deploy__after_push

#!/usr/bin/env bash
set -e
oldrev=$1
newrev=$2

run() {
  [ -x $1 ] && $1 $oldrev $newrev
}

echo files changed: $(git diff $oldrev $newrev --diff-filter=ACDMR --name-only | wc -l)

umask 002

git submodule sync && git submodule update --init --recursive

run deploy/update_plone

deploy__update_plone

#!/usr/bin/env python

import os
import re
import shlex
import subprocess
import sys


def update_plone():
    buildout_required = has_changed(r'^\w*.cfg$') or has_changed(r'setup.py')
    upgrade_required = buildout_required or has_changed(r'/upgrades/')
    templates_changed = has_changed(r'\.pt$')

    print ''
    print 'UPDATE PLONE'
    print '${0} -> ${1}'.format(OLDREV, NEWREV)
    print 'buildout required:', bool(buildout_required)
    print 'upgrade required:', bool(upgrade_required)
    print 'templates changed:', bool(templates_changed)
    sys.stdout.flush()

    assure_maintenance_server_running()
    if not buildout_required and not upgrade_required and not templates_changed:
        restart_instances()
        return

    if templates_changed:
        stop_instances()

    if buildout_required:
        run_buildout()

    stop_instances()
    if upgrade_required:
        run_upgrades()
    start_instances()


def run_bg(cmd):
    proc = subprocess.Popen(shlex.split(cmd),
                            stdout=subprocess.PIPE,
                            stderr=subprocess.PIPE)

    stdout, stderr = proc.communicate()
    if proc.poll():
        print 'ERROR {0}'.format(cmd)
        print stdout
        print stderr
        sys.stdout.flush()
        sys.exit(1)
    return stdout


def run_fg(cmd):
    print ''
    print '>', cmd
    sys.stdout.flush()
    if os.system(cmd):
        sys.exit(1)


def has_changed(file_regex):
    return filter(re.compile(file_regex).match, CHANGED)


def assure_supervisord_running():
    try:
        subprocess.check_call(shlex.split('bin/supervisorctl avail'),
                              stdout=subprocess.PIPE,
                              stderr=subprocess.PIPE)
    except subprocess.CalledProcessError, exc:
        if exc.returncode != 2:
            raise
        run_fg('bin/supervisord')


def assure_maintenance_server_running():
    status = supervisor_status()
    if 'maintenance' in status and status['maintenance'] != 'RUNNING':
        run_fg('bin/supervisorctl start maintenance')



def supervisor_status():
    assure_supervisord_running()
    return dict(map(lambda line: line.split()[:2],
                    run_bg('bin/supervisorctl status').strip().splitlines()))


def instances():
    for name, status in supervisor_status().items():
        if not name.startswith('instance'):
            continue

        yield name, status


def stop_instances():
    names = [name for (name, status) in instances() if status != 'STOPPED']
    run_fg('bin/supervisorctl stop {0}'.format(' '.join(names)))


def start_instances():
    names = [name for (name, status) in instances()
             if status != 'RUNNING' and name != 'instance0']
    run_fg('bin/supervisorctl start {0}'.format(' '.join(names)))


def restart_instances():
    for instance_name, status in instances():
        if instance_name == 'instance0':
            continue

        if status != 'STOPPED':
            run_fg('bin/supervisorctl stop {0}'.format(instance_name))
        run_fg('bin/supervisorctl start {0}'.format(instance_name))


def run_buildout():
    run_fg('bin/buildout')


def run_upgrades():
    if supervisor_status()['instance0'] != 'RUNNING':
        run_fg('bin/supervisorctl start instance0')

    run_fg('bin/upgrade install --pick-site --proposed')


if __name__ == '__main__':
    OLDREV, NEWREV = sys.argv[1:]
    CHANGED = run_bg('git diff {0} {1} --name-only'.format(OLDREV, NEWREV)).strip().splitlines()
    update_plone()

scripts__setup-git-remotes

#!/usr/bin/env bash

setup_remote () {
    name=$1
    url=$2

    echo ""
    echo "setup remote \"$name\" -> $url"
    git remote rm $name 2> /dev/null
    git remote add $name $url
    git fetch $name
}

setup_remote "production" "[email protected]:/home/zope/instances/04-plone-my.website.com-PRODUCTION"