Fabio Erculiani
394 lines
13 KiB
Python
394 lines
13 KiB
Python
# -*- coding: utf-8 -*-
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# Molecule Disc Image builder for Sabayon Linux
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# Copyright (C) 2009 Fabio Erculiani
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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import os
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import tempfile
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import shutil
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from molecule.i18n import _
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from molecule.output import red, brown, blue, green, purple, darkgreen, \
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darkred, bold, darkblue, readtext
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from molecule.specs.skel import GenericExecutionStep, GenericSpec
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from molecule.specs.plugins.builtin import ChrootHandler as BuiltinChrootHandler
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from molecule.specs.plugins.builtin import CdrootHandler as BuiltinCdrootHandler
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from molecule.specs.plugins.builtin import IsoHandler as BuiltinIsoHandler
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import molecule.utils
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class IsoUnpackHandler(GenericExecutionStep):
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def __init__(self, *args, **kwargs):
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GenericExecutionStep.__init__(self, *args, **kwargs)
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self.tmp_mount = tempfile.mkdtemp(prefix = "molecule", dir = "/var/tmp")
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self.tmp_squash_mount = tempfile.mkdtemp(prefix = "molecule",
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dir = "/var/tmp")
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self.iso_mounted = False
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self.squash_mounted = False
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# setup chroot unpack dir
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# can't use /tmp because it could be mounted with "special" options
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unpack_prefix = tempfile.mkdtemp(prefix = "molecule", dir = "/var/tmp",
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suffix = "chroot")
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self.metadata['chroot_tmp_dir'] = unpack_prefix
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self.metadata['chroot_unpack_path'] = os.path.join(unpack_prefix,
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"root")
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# setup upcoming new chroot path
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self.dest_root = os.path.join(unpack_prefix, "cdroot")
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self.metadata['cdroot_path'] = self.dest_root
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def pre_run(self):
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self.Output.updateProgress("[%s|%s] %s" % (
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blue("IsoUnpackHandler"),darkred(self.spec_name),
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_("executing pre_run"),
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)
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)
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# setup paths
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self.iso_image = self.metadata['source_iso']
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# mount
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mounter = self.metadata.get('iso_mounter', self.Config['iso_mounter'])
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mount_args = mounter + [self.iso_image, self.tmp_mount]
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self.Output.updateProgress("[%s|%s] %s: %s" % (
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blue("IsoUnpackHandler"), darkred(self.spec_name),
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_("spawning"), mount_args,
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)
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)
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rc = molecule.utils.exec_cmd(mount_args)
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if rc != 0:
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self.Output.updateProgress("[%s|%s] %s: %s" % (
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blue("IsoUnpackHandler"), darkred(self.spec_name),
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_("iso mount failed"), rc,
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)
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)
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return rc
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# copy iso content over, including squashfs yeah, it will be
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# replaced later on
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# this is mandatory and used to make iso recreation easier
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rc = molecule.utils.copy_dir(self.tmp_mount, self.dest_root)
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if rc != 0:
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return rc
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self.iso_mounted = True
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# mount squash
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mounter = self.metadata.get('squash_mounter',
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self.Config['squash_mounter'])
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squash_file = os.path.join(self.tmp_mount,
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self.Config['chroot_compressor_output_file'])
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mount_args = mounter + [squash_file, self.tmp_squash_mount]
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self.Output.updateProgress("[%s|%s] %s: %s" % (
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blue("IsoUnpackHandler"), darkred(self.spec_name),
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_("spawning"), mount_args,
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)
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)
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rc = molecule.utils.exec_cmd(mount_args)
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if rc != 0:
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self.Output.updateProgress("[%s|%s] %s: %s" % (
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blue("IsoUnpackHandler"), darkred(self.spec_name),
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_("squash mount failed"), rc,
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)
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)
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return rc
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self.squash_mounted = True
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return 0
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def run(self):
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self.Output.updateProgress("[%s|%s] %s: %s => %s" % (
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blue("IsoUnpackHandler"), darkred(self.spec_name),
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_("iso unpacker running"), self.tmp_squash_mount,
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self.metadata['chroot_unpack_path'],
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)
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)
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def dorm():
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shutil.rmtree(self.metadata['chroot_unpack_path'], True)
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# create chroot path
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try:
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rc = molecule.utils.copy_dir(self.tmp_squash_mount,
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self.metadata['chroot_unpack_path'])
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except:
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dorm()
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raise
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if rc != 0:
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dorm()
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return rc
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def post_run(self):
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self.Output.updateProgress("[%s|%s] %s" % (
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blue("IsoUnpackHandler"),darkred(self.spec_name),
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_("executing post_run"),
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)
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)
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return 0
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def kill(self, success = True):
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self.Output.updateProgress("[%s|%s] %s" % (
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blue("IsoUnpackHandler"),darkred(self.spec_name),
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_("executing kill"),
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)
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)
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rc = 0
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if self.squash_mounted:
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umounter = self.metadata.get('squash_umounter',
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self.Config['squash_umounter'])
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args = umounter + [self.tmp_squash_mount]
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rc = molecule.utils.exec_cmd(args)
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if rc == 0:
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try:
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os.rmdir(self.tmp_squash_mount)
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except OSError:
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pass
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rc = 0
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if self.iso_mounted:
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umounter = self.metadata.get('iso_umounter',
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self.Config['iso_umounter'])
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args = umounter + [self.tmp_mount]
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rc = molecule.utils.exec_cmd(args)
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if rc == 0:
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try:
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os.rmdir(self.tmp_mount)
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except OSError:
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# if not empty, skip
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pass
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if not success:
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try:
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shutil.rmtree(self.metadata['chroot_unpack_path'], True)
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except (shutil.Error, OSError,):
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pass
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return 0
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class ChrootHandler(BuiltinChrootHandler):
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def pre_run(self):
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self.Output.updateProgress("[%s|%s] %s" % (
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blue("ChrootHandler"),darkred(self.spec_name),
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_("executing pre_run"),
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)
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)
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# to make superclass working
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self.source_dir = self.metadata['chroot_unpack_path']
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self.dest_dir = self.source_dir
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return 0
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def post_run(self):
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self.Output.updateProgress("[%s|%s] %s" % (
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blue("ChrootHandler"),darkred(self.spec_name),
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_("executing post_run"),
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)
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)
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return 0
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def run(self):
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rc = BuiltinChrootHandler.run(self)
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if rc != 0:
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return rc
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self.Output.updateProgress("[%s|%s] %s" % (
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blue("ChrootHandler"),darkred(self.spec_name),
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_("hooks running"),
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)
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)
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packages_to_add = self.metadata.get('packages_to_add', [])
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if packages_to_add:
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# update repos first?
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do_update = self.metadata.get('execute_repositories_update', 'no')
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if do_update == 'yes':
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update_cmd = self.metadata.get('repositories_update_cmd',
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self.Config['pkgs_updater'])
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rc = molecule.utils.exec_chroot_cmd(update_cmd,
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self.source_dir,
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self.metadata.get('prechroot',[]))
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if rc != 0:
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return rc
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add_cmd = self.metadata.get('custom_packages_add_cmd',
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self.Config['pkgs_adder'])
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args = add_cmd + packages_to_add
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rc = molecule.utils.exec_chroot_cmd(args,
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self.source_dir,
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self.metadata.get('prechroot',[]))
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if rc != 0:
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return rc
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packages_to_remove = self.metadata.get('packages_to_remove', [])
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if packages_to_remove:
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rm_cmd = self.metadata.get('custom_packages_remove_cmd',
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self.Config['pkgs_remover'])
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args = rm_cmd + packages_to_remove
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rc = molecule.utils.exec_chroot_cmd(args,
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self.source_dir,
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self.metadata.get('prechroot',[]))
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if rc != 0:
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return rc
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return 0
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class CdrootHandler(BuiltinCdrootHandler):
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def pre_run(self):
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self.Output.updateProgress("[%s|%s] %s" % (
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blue("CdrootHandler"),darkred(self.spec_name),
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_("executing pre_run"),
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)
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)
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self.dest_root = self.metadata['cdroot_path']
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self.source_chroot = self.metadata['chroot_unpack_path']
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return 0
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class IsoHandler(BuiltinIsoHandler):
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def pre_run(self):
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self.Output.updateProgress("[%s|%s] %s" % (
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blue("IsoHandler"),darkred(self.spec_name),
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_("executing pre_run"),
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)
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)
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# cdroot dir
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self.source_path = self.metadata['cdroot_path']
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self.dest_iso = os.path.join(self.metadata['destination_iso_directory'],
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"remaster_" + os.path.basename(self.metadata['source_iso']))
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self.iso_title = self.metadata.get('iso_title', 'Molecule remaster')
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self.source_chroot = self.metadata['chroot_unpack_path']
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self.chroot_dir = self.source_chroot
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return 0
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class RemasterSpec(GenericSpec):
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@staticmethod
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def execution_strategy():
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return "iso_remaster"
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def vital_parameters(self):
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return [
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"source_iso",
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"destination_iso_directory",
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]
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def parser_data_path(self):
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return {
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'prechroot': {
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'cb': self.valid_exec_first_list_item,
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've': self.ve_string_splitter,
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},
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'source_iso': {
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'cb': self.valid_path_string,
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've': self.ve_string_stripper,
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},
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'iso_title': {
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'cb': self.ne_string,
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've': self.ve_string_stripper,
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},
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'outer_chroot_script': {
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'cb': self.valid_exec,
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've': self.ve_string_stripper,
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},
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'inner_chroot_script': {
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'cb': self.valid_path_string,
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've': self.ve_string_stripper,
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},
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'extra_mkisofs_parameters': {
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'cb': self.always_valid,
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've': self.ve_string_splitter,
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'mod': self.ve_string_splitter,
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},
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'pre_iso_script': {
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'cb': self.valid_exec,
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've': self.ve_string_stripper,
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},
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'destination_iso_directory': {
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'cb': self.valid_dir,
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've': self.ve_string_stripper,
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},
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'destination_iso_image_name': {
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'cb': self.valid_ascii,
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've': self.ve_string_stripper,
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},
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'iso_mounter': {
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'cb': self.ne_list,
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've': self.ve_string_splitter,
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'mod': self.ve_string_splitter,
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},
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'iso_umounter': {
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'cb': self.ne_list,
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've': self.ve_string_splitter,
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'mod': self.ve_string_splitter,
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},
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'squash_mounter': {
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'cb': self.ne_list,
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've': self.ve_string_splitter,
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'mod': self.ve_string_splitter,
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},
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'squash_umounter': {
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'cb': self.ne_list,
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've': self.ve_string_splitter,
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'mod': self.ve_string_splitter,
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},
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'merge_livecd_root': {
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'cb': self.valid_dir,
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've': self.ve_string_stripper,
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},
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'custom_packages_remove_cmd': {
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'cb': self.valid_ascii,
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've': self.ve_string_stripper,
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},
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'custom_packages_add_cmd': {
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'cb': self.valid_ascii,
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've': self.ve_string_stripper,
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},
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'packages_to_remove': {
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'cb': self.ne_list,
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've': self.ve_string_splitter,
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'mod': self.ve_string_splitter,
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},
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'packages_to_add': {
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'cb': self.ne_list,
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've': self.ve_string_splitter,
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'mod': self.ve_string_splitter,
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},
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'repositories_update_cmd': {
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'cb': self.ne_list,
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've': self.ve_string_splitter,
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'mod': self.ve_string_splitter,
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},
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'execute_repositories_update': {
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'cb': self.valid_ascii,
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've': self.ve_string_stripper,
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},
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}
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def get_execution_steps(self):
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return [IsoUnpackHandler, ChrootHandler, CdrootHandler, IsoHandler]
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