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f3d633780f
String concatenation can at times be easier to read that format(). One should choose whichever approach is more readable.
76 lines
2.6 KiB
Python
76 lines
2.6 KiB
Python
from bootstrapvz.base import Task
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from .. import phases
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from ..exceptions import TaskError
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import host
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import logging
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import os.path
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log = logging.getLogger(__name__)
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class AddRequiredCommands(Task):
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description = 'Adding commands required for bootstrapping Debian'
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phase = phases.preparation
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successors = [host.CheckExternalCommands]
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@classmethod
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def run(cls, info):
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info.host_dependencies['debootstrap'] = 'debootstrap'
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def get_bootstrap_args(info):
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executable = ['debootstrap']
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options = ['--arch=' + info.manifest.system['architecture']]
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if len(info.include_packages) > 0:
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options.append('--include=' + ','.join(info.include_packages))
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if len(info.exclude_packages) > 0:
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options.append('--exclude=' + ','.join(info.exclude_packages))
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mirror = info.manifest.bootstrapper.get('mirror', info.apt_mirror)
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arguments = [info.manifest.system['release'], info.root, mirror]
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return executable, options, arguments
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def get_tarball_filename(info):
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from hashlib import sha1
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executable, options, arguments = get_bootstrap_args(info)
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# Filter info.root which points at /target/volume-id, we won't ever hit anything with that in there.
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hash_args = [arg for arg in arguments if arg != info.root]
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tarball_id = sha1(repr(frozenset(options + hash_args))).hexdigest()[0:8]
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tarball_filename = 'debootstrap-' + tarball_id + '.tar'
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return os.path.join(info.manifest.bootstrapper['workspace'], tarball_filename)
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class MakeTarball(Task):
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description = 'Creating bootstrap tarball'
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phase = phases.os_installation
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@classmethod
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def run(cls, info):
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executable, options, arguments = get_bootstrap_args(info)
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info.tarball = get_tarball_filename(info)
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if os.path.isfile(info.tarball):
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log.debug('Found matching tarball, skipping creation')
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else:
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from ..tools import log_call
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status, out, err = log_call(executable + options + ['--make-tarball=' + info.tarball] + arguments)
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if status != 1:
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msg = 'debootstrap exited with status {status}, it should exit with status 1'.format(status=status)
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raise TaskError(msg)
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class Bootstrap(Task):
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description = 'Installing Debian'
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phase = phases.os_installation
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predecessors = [MakeTarball]
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@classmethod
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def run(cls, info):
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executable, options, arguments = get_bootstrap_args(info)
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info.tarball = get_tarball_filename(info)
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if os.path.isfile(info.tarball):
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if not info.manifest.bootstrapper.get('tarball', False):
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# Only shows this message if it hasn't tried to create the tarball
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log.debug('Found matching tarball, skipping download')
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options.extend(['--unpack-tarball=' + info.tarball])
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from ..tools import log_check_call
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log_check_call(executable + options + arguments)
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