54 lines
2.0 KiB
Python
54 lines
2.0 KiB
Python
# Copyright (c) 2013 OpenStack Foundation
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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
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# 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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import pbr.version
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version_info = pbr.version.VersionInfo('zaqar')
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version_string = version_info.version_string
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def verify_sha(expected):
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"""Verifies the commit hash for an interim Zaqar build.
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This function may be used to verify that the version of the zaqar
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package, as imported from an environment's site-packages, is the
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expected build. This allows continuous integration scripts to
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detect out-of-date installations of the package.
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Note that this function will ALWAYS return False for Zaqar packages
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that were not installed from git.
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:param expected: The expected commit object name. May be either a full
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or abbreviated SHA hash. If abbreviated, at least 7 digits are
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required.
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:returns: True if the package's version string contains a hash, and
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that hash matches `expected`. Otherwise returns False.
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"""
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# NOTE(kgriffs): Require 7 digits to avoid false positives. In practice,
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# Git's abbreviated commit oject names will always include at least
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# 7 digits.
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assert len(expected) >= 7
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# NOTE(kgriffs): Git usually abbreviates hashed to 7 digits, but also
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# check 8 digits in case git decides just 7 is ambiguous. Accordingly,
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# try the longer one first since it is more specific than the other.
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for abbreviated in (expected[:8], expected[:7]):
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if ('.g' + abbreviated) in version_info.release_string():
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return True
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return False
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