107 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Python
		
	
	
			
		
		
	
	
			107 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Python
		
	
	
| #!/usr/bin/env python
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| # -*- coding: utf-8 -*-
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| # Copyright 2016 OpenMarket Ltd
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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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| import logging
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| import os
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| import subprocess
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| 
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| logger = logging.getLogger(__name__)
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| 
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| 
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| def get_version_string(module):
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|     """Given a module calculate a git-aware version string for it.
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| 
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|     If called on a module not in a git checkout will return `__verison__`.
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| 
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|     Args:
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|         module (module)
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| 
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|     Returns:
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|         str
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|     """
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| 
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|     cached_version = getattr(module, "_synapse_version_string_cache", None)
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|     if cached_version:
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|         return cached_version
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| 
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|     version_string = module.__version__
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| 
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|     try:
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|         null = open(os.devnull, "w")
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|         cwd = os.path.dirname(os.path.abspath(module.__file__))
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|         try:
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|             git_branch = (
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|                 subprocess.check_output(
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|                     ["git", "rev-parse", "--abbrev-ref", "HEAD"], stderr=null, cwd=cwd
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|                 )
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|                 .strip()
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|                 .decode("ascii")
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|             )
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|             git_branch = "b=" + git_branch
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|         except subprocess.CalledProcessError:
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|             git_branch = ""
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| 
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|         try:
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|             git_tag = (
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|                 subprocess.check_output(
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|                     ["git", "describe", "--exact-match"], stderr=null, cwd=cwd
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|                 )
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|                 .strip()
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|                 .decode("ascii")
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|             )
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|             git_tag = "t=" + git_tag
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|         except subprocess.CalledProcessError:
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|             git_tag = ""
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| 
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|         try:
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|             git_commit = (
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|                 subprocess.check_output(
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|                     ["git", "rev-parse", "--short", "HEAD"], stderr=null, cwd=cwd
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|                 )
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|                 .strip()
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|                 .decode("ascii")
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|             )
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|         except subprocess.CalledProcessError:
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|             git_commit = ""
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| 
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|         try:
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|             dirty_string = "-this_is_a_dirty_checkout"
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|             is_dirty = (
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|                 subprocess.check_output(
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|                     ["git", "describe", "--dirty=" + dirty_string], stderr=null, cwd=cwd
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|                 )
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|                 .strip()
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|                 .decode("ascii")
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|                 .endswith(dirty_string)
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|             )
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| 
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|             git_dirty = "dirty" if is_dirty else ""
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|         except subprocess.CalledProcessError:
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|             git_dirty = ""
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| 
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|         if git_branch or git_tag or git_commit or git_dirty:
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|             git_version = ",".join(
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|                 s for s in (git_branch, git_tag, git_commit, git_dirty) if s
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|             )
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| 
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|             version_string = "%s (%s)" % (module.__version__, git_version)
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|     except Exception as e:
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|         logger.info("Failed to check for git repository: %s", e)
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| 
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|     module._synapse_version_string_cache = version_string
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| 
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|     return version_string
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