67 строки
1.8 KiB
Python
67 строки
1.8 KiB
Python
#!/usr/bin/env python
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import os
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import subprocess
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def git_get_commit_hash():
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try:
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return subprocess.check_output(
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['git', 'rev-parse', '--short=8', 'HEAD']).decode('ascii').strip()
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except subprocess.CalledProcessError:
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return "00000000"
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def git_get_commit_count():
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try:
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return subprocess.check_output(
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['git', 'rev-list', '--count', 'HEAD']).decode('ascii').strip()
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except subprocess.CalledProcessError:
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return 0
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def compose_commit_namespace(git_count, git_hash):
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return ('namespace {{\n'
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' const uint32_t kGitCommitCount = {}u;\n'
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' const char kGitCommitHash[] = "{}";\n'
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'}}\n').format(git_count, git_hash)
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def update(srcdir, commit_file):
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# Read the original commit info
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try:
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f = open(commit_file)
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prev_commit = f.read()
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f.close()
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except:
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prev_commit = ''
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prev_cwd = os.getcwd()
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os.chdir(srcdir)
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cur_commit = compose_commit_namespace(
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git_get_commit_count(), git_get_commit_hash())
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os.chdir(prev_cwd)
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# Update if different: avoid triggering rebuilding unnecessarily
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if cur_commit != prev_commit:
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with open(commit_file, 'w') as f:
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f.write(cur_commit)
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def main():
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import argparse
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parser = argparse.ArgumentParser(
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description='Generate file containing Git commit information')
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parser.add_argument('srcpath', metavar='<src-dir-path>', type=str,
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help='Path to the source code directory')
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parser.add_argument('dstpath', metavar='<dst-file-path>', type=str,
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help='Path to the generated file')
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args = parser.parse_args()
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update(args.srcpath, args.dstpath)
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if __name__ == '__main__':
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main()
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