bootstrap-vz/plugins/backports/tasks.py

from base import Task
from common import phases
from common.tasks.packages import ImagePackages
from common.tasks.initd import InstallInitScripts
from common.tasks.apt import AptUpgrade
from common.tasks.apt import AptSources
import os


class AptSourcesBackports(Task):
	description = 'Adding backports to sources.list'
	phase = phases.system_modification
	after = [AptSources]
	before = [AptUpgrade]

	def run(self, info):
		sources_path = os.path.join(info.root, 'etc/apt/sources.list')
		with open(sources_path, 'a') as apt_sources:
			apt_sources.write(('deb     {apt_mirror} {release}-backports main\n'
			                   'deb-src {apt_mirror} {release}-backports main\n'
			                   .format(apt_mirror='http://http.debian.net/debian',
			                           release=info.manifest.system['release'])))


class AddBackportsPackages(Task):
	description = 'Adding backport packages to the image'
	phase = phases.system_modification
	after = [AptUpgrade]

	def run(self, info):
		if 'packages' not in info.manifest.plugins['backports']:
			return

		from common.tools import log_check_call
		for pkg in info.manifest.plugins['backports']['packages']:
			log_check_call(['/usr/sbin/chroot', info.root, '/usr/bin/apt-get', 'install',
			                '--assume-yes', '--target-release', info.manifest.system['release'] + '-backports',
			                pkg])