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set_dependency_version
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set_dependency_version
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#!/usr/bin/env python3
#
# Copyright 2020 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import json
import pathlib
import sys
import ci.util
dependency_type = ci.util.check_env('DEPENDENCY_TYPE')
if not dependency_type == 'component':
ci.util.fail(
"don't know how to upgrade dependency type: "
f'{dependency_type}'
)
dependency_name = ci.util.check_env('DEPENDENCY_NAME')
dependency_version = ci.util.check_env('DEPENDENCY_VERSION')
images_file = pathlib.Path(
ci.util.check_env('REPO_DIR'),
'imagevector',
'images.yaml',
)
class ImagesParser(object):
'''
a naive YAML-parser crafted for the special case of processing
gardener's images.yaml file; crafted that way to preserve
comments/empty lines
'''
def __init__(
self,
images_file,
names,
target_version,
):
self.images_file = images_file
self.lines = images_file.read_text().split('\n')
self.names = names
self.target_version = target_version
self._line_idx = 0
def _line(self):
return self.lines[self._line_idx]
def _next_line(self):
self._line_idx += 1
return self._line()
def _skip_to_next_entry(self, names):
while not self._line().startswith('-'):
self._next_line()
name = self._line().strip().split(':')[-1].strip()
if name not in names:
self._next_line()
return self._skip_to_next_entry(names)
# found one of the entries:
return name
def _skip_to_next_tag(self):
self._next_line()
while not self._line().startswith('-'):
if self._line().strip().startswith('tag:'):
return
self._next_line()
raise RuntimeError('did not find tag attribute')
def set_versions(self):
while self.names:
try:
name = self._skip_to_next_entry(self.names)
except IndexError:
print(str(self.names))
ci.util.fail('don\'t know how to update ' + str(self.names))
self.names.remove(name)
self._skip_to_next_tag()
tag_line = self._line()
indent = len(tag_line) - len(tag_line.lstrip())
patched_line = ' ' * indent + 'tag: "{version}"'.format(
version=self.target_version,
)
self.lines[self._line_idx] = patched_line
def write_updated_file(self):
self.images_file.write_text(
'\n'.join(self.lines)
)
# optionally load special cases from first argument given as JSON
injectedSpecialCases = {}
if len(sys.argv) == 2:
injectedSpecialCases = json.loads(sys.argv[1])
# handle special cases
name = dependency_name.split('/')[-1]
if name in injectedSpecialCases:
names = injectedSpecialCases[name]
elif name == 'autoscaler':
names = ['cluster-autoscaler']
elif name == 'vpn2':
names = ['vpn-seed-server', 'vpn-shoot-client']
elif name == 'external-dns-management':
names = ['dns-controller-manager']
elif name == 'logging':
names = ['fluent-bit-plugin-installer', 'vali-curator', 'telegraf', 'event-logger', 'tune2fs']
elif name == 'etcd-custom-image':
names = ['etcd']
elif name == 'egress-filter-refresher':
names = ['egress-filter-blackholer', 'egress-filter-firewaller']
elif name == 'apiserver-proxy':
names = ['apiserver-proxy-sidecar']
else:
names = [name]
parser = ImagesParser(
images_file=images_file,
names=names,
target_version=dependency_version,
)
parser.set_versions()
parser.write_updated_file()