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author | Patrick Darley <patrick.darley@codethink.co.uk> | 2015-09-11 13:52:32 +0000 |
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committer | Patrick Darley <patrick.darley@codethink.co.uk> | 2015-09-11 13:52:32 +0000 |
commit | 44ef620105e0c3bac9d0fed42d4dfc233dbb9dfd (patch) | |
tree | c14f500b13afae93cd17868579a2cb23210a4b21 /extensions/rawdisk.check | |
parent | 3bb679fbc9a3de80b01eddb49c59cf4163c34478 (diff) | |
download | definitions-44ef620105e0c3bac9d0fed42d4dfc233dbb9dfd.tar.gz |
Add extensions to the this old branch
Diffstat (limited to 'extensions/rawdisk.check')
-rwxr-xr-x | extensions/rawdisk.check | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/extensions/rawdisk.check b/extensions/rawdisk.check new file mode 100755 index 00000000..61619a21 --- /dev/null +++ b/extensions/rawdisk.check @@ -0,0 +1,52 @@ +#!/usr/bin/python +# Copyright (C) 2014-2015 Codethink Limited +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; version 2 of the License. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program. If not, see <http://www.gnu.org/licenses/>. + +'''Preparatory checks for Morph 'rawdisk' write extension''' + +import os + +import writeexts + + +class RawdiskCheckExtension(writeexts.WriteExtension): + def process_args(self, args): + if len(args) != 1: + raise writeexts.ExtensionError( + 'Wrong number of command line args') + + self.require_btrfs_in_deployment_host_kernel() + + location = args[0] + upgrade = self.get_environment_boolean('UPGRADE') + if upgrade: + if not self.is_device(location): + if not os.path.isfile(location): + raise writeexts.ExtensionError( + 'Cannot upgrade %s: it is not an existing disk image' % + location) + + version_label = os.environ.get('VERSION_LABEL') + if version_label is None: + raise writeexts.ExtensionError( + 'VERSION_LABEL was not given. It is required when ' + 'upgrading an existing system.') + else: + if not self.is_device(location): + if os.path.exists(location): + raise writeexts.ExtensionError( + 'Target %s already exists. Use `morph upgrade` if you ' + 'want to update an existing image.' % location) + +RawdiskCheckExtension().run() |