Add example commander deploy script.

bin/update/commander_settings.py-dist

@@ -0,0 +1,14 @@
+SRC_DIR = ''
+WWW_DIR = ''
+
+CRON_NAME = ''
+
+DEPLOY_SCRIPT = ''
+REMOTE_UPDATE_SCRIPT = ''
+
+WEB_HOSTGROUP = ''
+CELERY_HOSTGROUP = ''
+CELERY_SERVICE = ''
+
+UPDATE_REF = 'origin/master'
+SSH_KEY = None

bin/update/deploy.py

@@ -0,0 +1,137 @@
+"""
+Deploy this project in dev/stage/production.
+
+Requires commander_ which is installed on the systems that need it.
+
+.. _commander: https://github.com/oremj/commander
+"""
+
+import os
+import sys
+
+sys.path.append(os.path.dirname(os.path.abspath(__file__)))
+
+from commander.deploy import task, hostgroups
+import commander_settings as settings
+
+
+@task
+def update_code(ctx, tag):
+    """Update the code to a specific git reference (tag/sha/etc)."""
+    with ctx.lcd(settings.SRC_DIR):
+        ctx.local('git fetch')
+        ctx.local('git checkout -f %s' % tag)
+        ctx.local('git submodule sync')
+        ctx.local('git submodule update --init --recursive')
+
+
+@task
+def update_locales(ctx):
+    """Update a locale directory from SVN.
+
+    Assumes localizations 1) exist, 2) are in SVN, 3) are in SRC_DIR/locale and
+    4) have a compile-mo.sh script. This should all be pretty standard, but
+    change it if you need to.
+
+    """
+    with ctx.lcd(os.path.join(settings.SRC_DIR, 'locale')):
+        ctx.local('svn up')
+        ctx.local('./compile-mo.sh .')
+
+
+@task
+def update_assets(ctx):
+    with ctx.lcd(settings.SRC_DIR):
+        # LANG=en_US.UTF-8 is sometimes necessary for the YUICompressor.
+        ctx.local('LANG=en_US.UTF8 python2.6 manage.py compress_assets')
+
+
+@task
+def update_db(ctx):
+    """Update the database schema, if necessary.
+
+    Uses schematic by default. Change to south if you need to.
+
+    """
+    with ctx.lcd(settings.SRC_DIR):
+        ctx.local('python2.6 ./vendor/src/schematic/schematic migrations')
+
+
+@task
+def install_cron(ctx):
+    """Use gen-crons.py method to install new crontab.
+
+    Ops will need to adjust this to put it in the right place.
+
+    """
+    with ctx.lcd(settings.SRC_DIR):
+        ctx.local('python2.6 ./bin/crontab/gen-crons.py -w %s -u apache > '
+                  '/etc/cron.d/.%' % (settings.WWW_DIR, settings.CRON_NAME))
+        ctx.local('mv /etc/cron.d/.%s /etc/cron.d/%s' %
+                  (settings.CRON_NAME,  settings.CRON_NAME))
+
+
+@task
+def checkin_changes(ctx):
+    """Use the local, IT-written deploy script to check in changes."""
+    ctx.local(settings.DEPLOY_SCRIPT)
+
+
+@hostgroups(settings.WEB_HOSTGROUP, remote_kwargs={'ssh_key': settings.SSH_KEY})
+def deploy_app(ctx):
+    """Call the remote update script to push changes to webheads."""
+    ctx.remote(settings.REMOTE_UPDATE_SCRIPT)
+    ctx.remote('/bin/touch %s' % settings.REMOTE_WSGI)
+
+
+@hostgroups(settings.CELERY_HOSTGROUP, remote_kwargs={'ssh_key': settings.SSH_KEY})
+def update_celery(ctx):
+    """Update and restart Celery."""
+    ctx.remote(settings.REMOTE_UPDATE_SCRIPT)
+    ctx.remote('/sbin/service %s restart' % settings.CELERY_SERVICE)
+
+
+@task
+def update_info(ctx):
+    """Write info about the current state to a publicly visible file."""
+    with ctx.lcd(settings.SRC_DIR):
+        ctx.local('date')
+        ctx.local('git branch')
+        ctx.local('git log -3')
+        ctx.local('git status')
+        ctx.local('git submodule status')
+        ctx.local('python2.6 ./vendor/src/schematic/schematic -v migrations/')
+        with ctx.lcd('locale'):
+            ctx.local('svn info')
+            ctx.local('svn status')
+
+        ctx.local('git rev-parse HEAD > media/revision.txt')
+
+
+@task
+def pre_update(ctx, ref=settings.UPDATE_REF):
+    """Update code to pick up changes to this file."""
+    update_code(ref)
+    update_info()
+
+
+@task
+def update(ctx):
+    update_assets()
+    update_locales()
+    update_db()
+
+
+@task
+def deploy(ctx):
+    install_cron()
+    checkin_changes()
+    deploy_app()
+    update_celery()
+
+
+@task
+def update_site(ctx, tag):
+    """Update the app to prep for deployment."""
+    pre_update(tag)
+    update()