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Diffstat (limited to 'migrations/003-arch-armv5.py')
-rwxr-xr-x | migrations/003-arch-armv5.py | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/migrations/003-arch-armv5.py b/migrations/003-arch-armv5.py new file mode 100755 index 00000000..58eb79de --- /dev/null +++ b/migrations/003-arch-armv5.py @@ -0,0 +1,89 @@ +#!/usr/bin/env python +# Copyright (C) 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/>. + + +'''Migration to Baserock Definitions format version 3. + +In version 3, there were two additions: + + - the 'armv5' architecture + - the install-essential-files.configure configuration extension + +This migration checks that neither of these are in use in the input (version 2) +definitions. Which isn't particularly useful. + +''' + + +import sys +import warnings + +import migrations + + +TO_VERSION = 3 + + +def check_arch(contents, filename): + assert contents['kind'] == 'system' + + valid = True + + if contents['arch'] == 'armv5': + warnings.warn( + "%s uses armv5 architecture that is not understood until version " + "3." % filename) + valid = False + + return valid + + +def check_configuration_extensions(contents, filename): + assert contents['kind'] == 'system' + + valid = True + + for extension in contents.get('configuration-extensions', []): + if extension == 'install-essential-files': + warnings.warn( + "%s uses install-essential-files.configure extension, which " + "was not present in morph.git until commit 423dc974a61f1c0 " + "(tag baserock-definitions-v3)." % filename) + valid = False + + return valid + + +try: + if migrations.check_definitions_version(TO_VERSION - 1): + safe_to_migrate = migrations.process_definitions( + kinds=['system'], validate_cb=check_arch) + safe_to_migrate = migrations.process_definitions( + kinds=['system'], validate_cb=check_configuration_extensions) + + if not safe_to_migrate: + sys.stderr.write( + "Migration failed due to one or more warnings.\n") + sys.exit(1) + else: + migrations.set_definitions_version(TO_VERSION) + sys.stdout.write("Migration completed successfully.\n") + sys.exit(0) + else: + sys.stdout.write("Nothing to do.\n") + sys.exit(0) +except RuntimeError as e: + sys.stderr.write("Error: %s\n" % e.message) + sys.exit(1) |