mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-23 04:00:05 +00:00
87 lines
2.8 KiB
Python
Executable File
87 lines
2.8 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
# Copyright 2016 The Shaderc Authors. All rights reserved.
|
|
#
|
|
# 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.
|
|
|
|
# Updates build-version.inc in the current directory, unless the update is
|
|
# identical to the existing content.
|
|
#
|
|
# Args: <spirv-tools_dir>
|
|
#
|
|
# For each directory, there will be a line in build-version.inc containing that
|
|
# directory's "git describe" output enclosed in double quotes and appropriately
|
|
# escaped.
|
|
|
|
from __future__ import print_function
|
|
|
|
import datetime
|
|
import os.path
|
|
import subprocess
|
|
import sys
|
|
|
|
OUTFILE = 'build-version.inc'
|
|
|
|
|
|
def command_output(cmd, dir):
|
|
"""Runs a command in a directory and returns its standard output stream.
|
|
|
|
Captures the standard error stream.
|
|
|
|
Raises a RuntimeError if the command fails to launch or otherwise fails.
|
|
"""
|
|
p = subprocess.Popen(cmd,
|
|
cwd=dir,
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE)
|
|
(stdout, _) = p.communicate()
|
|
if p.returncode != 0:
|
|
raise RuntimeError('Failed to run %s in %s' % (cmd, dir))
|
|
return stdout
|
|
|
|
|
|
def describe(dir):
|
|
"""Returns a string describing the current Git HEAD version as descriptively
|
|
as possible.
|
|
|
|
Runs 'git describe', or alternately 'git rev-parse HEAD', in dir. If
|
|
successful, returns the output; otherwise returns 'unknown hash, <date>'."""
|
|
try:
|
|
# decode() is needed here for Python3 compatibility. In Python2,
|
|
# str and bytes are the same type, but not in Python3.
|
|
# Popen.communicate() returns a bytes instance, which needs to be
|
|
# decoded into text data first in Python3. And this decode() won't
|
|
# hurt Python2.
|
|
return command_output(['git', 'describe'], dir).rstrip().decode()
|
|
except:
|
|
try:
|
|
return command_output(
|
|
['git', 'rev-parse', 'HEAD'], dir).rstrip().decode()
|
|
except:
|
|
return 'unknown hash, {}'.format(datetime.date.today().isoformat())
|
|
|
|
|
|
def main():
|
|
if len(sys.argv) != 2:
|
|
print('usage: {0} <spirv-tools_dir>'.format(sys.argv[0]))
|
|
sys.exit(1)
|
|
|
|
new_content = '"spirv-tools {}\\n"\n'.format(
|
|
describe(sys.argv[1]).replace('"', '\\"'))
|
|
if os.path.isfile(OUTFILE) and new_content == open(OUTFILE, 'r').read():
|
|
sys.exit(0)
|
|
open(OUTFILE, 'w').write(new_content)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|