versions.yaml updater tool
Being run in directory with versions.yaml or provideded with path to
the versions.yaml, will create versions.new.yaml, with updated git
commit id's to the latest HEAD in:
1) references of all charts
2) tags of container images listed in dictionary image_repo_git_url
dict
Change-Id: I163304da5bf5ec198deb7aaea0abac04c96c569e
This commit is contained in:
Roman Gorshunov
parent
94d772d4b3
commit
b5ccec8d25
229
tools/updater.py
Executable file
229
tools/updater.py
Executable file
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#!/usr/bin/env python3
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# Copyright 2018 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# versions.yaml file updater tool
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#
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# Being run in directory with versions.yaml, will create versions.new.yaml,
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# with updated git commit id's to the latest HEAD in:
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# 1) references of all charts
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# 2) tags of container images listed in dict `image_repo_git_url` in the
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# code below
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#
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from functools import reduce
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import argparse
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import logging
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import operator
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import os
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import sys
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try:
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import git
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import yaml
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except ImportError as e:
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sys.exit("Failed to import git/yaml libraries needed to run" +
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"this tool %s" % str(e))
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descr_text="Process versions.yaml and create versions.new.yaml with \
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updated git commit id\'s to the latest HEAD in: \
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1) references of all charts \
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2) tags of container images listed in dict \
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`image_repo_git_url` in the code."
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parser = argparse.ArgumentParser(description=descr_text)
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# Dictionary containing container image repository url to git url mapping
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#
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# We expect that each image in container image repository has image tag which
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# equals to the git commit id of the HEAD in corresponding git repository
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image_repo_git_url = {
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# airflow image is built from airship-shipyard repository
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'quay.io/airshipit/airflow': 'https://git.openstack.org/openstack/airship-shipyard',
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'quay.io/airshipit/armada': 'https://git.openstack.org/openstack/airship-armada',
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'quay.io/airshipit/deckhand': 'https://git.openstack.org/openstack/airship-deckhand',
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'quay.io/airshipit/divingbell': 'https://git.openstack.org/openstack/airship-divingbell',
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'quay.io/airshipit/drydock': 'https://git.openstack.org/openstack/airship-drydock',
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# maas-{rack,region}-controller images are built from airship-maas repository
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'quay.io/airshipit/maas-rack-controller': 'https://git.openstack.org/openstack/airship-maas',
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'quay.io/airshipit/maas-region-controller': 'https://git.openstack.org/openstack/airship-maas',
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'quay.io/airshipit/pegleg': 'https://git.openstack.org/openstack/airship-pegleg',
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'quay.io/airshipit/promenade': 'https://git.openstack.org/openstack/airship-promenade',
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'quay.io/airshipit/shipyard': 'https://git.openstack.org/openstack/airship-shipyard',
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# sstream-cache image is built from airship-maas repository
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'quay.io/airshipit/sstream-cache': 'https://git.openstack.org/openstack/airship-maas',
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'quay.io/attcomdev/nagios': 'https://github.com/att-comdev/nagios'
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# Disabled by Kaspars: https://review.openstack.org/#/c/596909/21/tools/updater.py@53
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#'quay.io/attcomdev/prometheus-openstack-exporter': 'https://github.com/att-comdev/prometheus-openstack-exporter'
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}
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logging.basicConfig(level=logging.INFO)
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# Temporary dict of git url's and cached commit id's: {'git_url': 'commit_id'}
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git_url_commit_ids = {}
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dict_path = None
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# https://stackoverflow.com/a/35585837
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def lsremote(url, remote_ref):
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"""Accepts git url and remote reference, returns git commit id."""
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git_commit_id_remote_ref = {}
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g = git.cmd.Git()
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logging.info('Fetching ' + url + ' ' + remote_ref + ' reference...')
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hash_ref_list = g.ls_remote(url, remote_ref).split('\t')
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git_commit_id_remote_ref[hash_ref_list[1]] = hash_ref_list[0]
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return git_commit_id_remote_ref[remote_ref]
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def get_commit_id(url):
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"""Accepts url of git repo and returns corresponding git commit hash"""
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# If we don't have this git url in our url's dictionary,
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# fetch latest commit ID and add new dictionary entry
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logging.debug('git_url_commit_ids: %s', git_url_commit_ids)
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if url not in git_url_commit_ids:
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logging.debug('git url: ' + url +
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' is not in git_url_commit_ids dict;' +
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' adding it with HEAD commit id')
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git_url_commit_ids[url] = lsremote(url, 'HEAD')
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return git_url_commit_ids[url]
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# https://stackoverflow.com/a/14692747
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def get_by_path(root, items):
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"""Access a nested object in root by item sequence."""
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return reduce(operator.getitem, items, root)
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def set_by_path(root, items, value):
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"""Set a value in a nested object in root by item sequence."""
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get_by_path(root, items[:-1])[items[-1]] = value
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# Based on http://nvie.com/posts/modifying-deeply-nested-structures/
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def traverse(obj, dict_path=None):
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"""Accepts Python dictionary with values.yaml contents,
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updates it with latest git commit id's.
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"""
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logging.debug('traverse: dict_path: %s, object type: %s, object: %s',
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dict_path, type(obj), obj)
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if dict_path is None:
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dict_path = []
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if isinstance(obj, dict):
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# It's a dictionary element
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logging.debug('this object is a dictionary')
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for k, v in obj.items():
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# If value v we are checking is a dictionary itself, and this
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# dictionary contains key named 'type', and a value of key 'type'
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# equals 'git', then
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if isinstance(v, dict) and 'type' in v and v['type'] == 'git':
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old_git_commit_id = v['reference']
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git_url = v['location']
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new_git_commit_id = get_commit_id(git_url)
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# Update git commit id in reference field of dictionary
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if old_git_commit_id != new_git_commit_id:
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logging.info('Updating git reference for chart %s from %s to ' +
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'%s (%s)',
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k, old_git_commit_id, new_git_commit_id,
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git_url)
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v['reference'] = new_git_commit_id
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else:
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logging.info('Git reference %s for chart %s is already up to date (%s) ',
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old_git_commit_id, k, git_url)
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else:
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logging.debug('value %s inside object is not a dictionary, or it does not ' +
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'contain key \'type\' with value \'git\', skipping', v)
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# Traverse one level deeper
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traverse(v, dict_path + [k])
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elif isinstance(obj, list):
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# It's a list element
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logging.debug('this object is a list')
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for elem in obj:
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# TODO: Do we have any git references or container image tags in
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# versions.yaml which are inside lists? Probably not.
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traverse(elem, dict_path + [[]])
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else:
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# It's already a value
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logging.debug('this object is a value')
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v = obj
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# Searching for container image repositories, we are only intrested in
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# strings; there could also be booleans or other types we are not interested in.
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if isinstance(v, str):
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for image_repo, git_url in image_repo_git_url.items():
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if image_repo in v:
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logging.debug('image_repo %s is in %s string', image_repo, v)
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# hash_v: {'&whatever repo_url', 'git commit id tag'}
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# Note: 'image' below could contain not just image, but also
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# '&ref host.domain/path/image'
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hash_v = v.split(":")
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image, old_git_commit_id = hash_v
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new_git_commit_id = get_commit_id(git_url)
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# Update git commit id in tag of container image
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if old_git_commit_id != new_git_commit_id:
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logging.info('Updating git commit id in' +
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' tag of container image %s from %s to' +
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' %s (%s)',
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image, old_git_commit_id,
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new_git_commit_id, git_url)
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set_by_path(versions_data_dict, dict_path, image + ':' + new_git_commit_id)
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else:
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logging.info('Git tag %s for container ' +
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'image %s is already up to date (%s)',
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old_git_commit_id, image, git_url)
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else:
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logging.debug('image_repo %s is not in %s string, skipping', image_repo, v)
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else:
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logging.debug('value %s is not string, skipping', v)
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if __name__ == '__main__':
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"""Small Main program"""
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parser.add_argument('--in-file', default = 'versions.yaml', help = '/path/to/versions.yaml file')
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args = parser.parse_args()
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in_file = args.in_file
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if os.path.isfile(in_file):
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out_file = os.path.join(os.path.dirname(os.path.abspath(in_file)), 'versions.new.yaml')
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with open(in_file, 'r') as f:
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f_old = f.read()
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versions_data_dict = yaml.safe_load(f_old)
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else:
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logging.error("Can\'t find versions.yaml file.\n")
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parser.print_help()
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sys.exit(1)
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# Traverse loaded yaml and change it
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traverse(versions_data_dict)
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with open(out_file, 'w') as f:
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f.write(yaml.safe_dump(versions_data_dict,
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default_flow_style=False, default_style='\"',
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explicit_end=True, explicit_start=True,
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width=4096))
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logging.info('New versions.yaml created as %s' % out_file)
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