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#!/usr/bin/env python3
# Copyright 2013-2015 The Meson development team
# 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.
import sys, os, shutil, shlex, subprocess
import backends
def update_vcs_info(vcs_cmd, vcs_dir, vcs_info_file):
"""Update the string in the vcs_info_file with the stdout of vcs_cmd executed in vcs_dir."""
cmd = shlex.split(vcs_cmd)
# Is the command an executable in path or maybe a script in the source tree?
cmd[0] = shutil.which(cmd[0]) or os.path.join(vcs_dir, cmd[0])
try:
info = subprocess.check_output(cmd, cwd=vcs_dir)
except FileNotFoundError:
print('Could not execute command "%s".' % ' '.join(cmd))
sys.exit(1)
except subprocess.CalledProcessError as e:
print('Failed to get repository information from %s.\n' % vcs_dir)
sys.exit(e.returncode)
info = info.strip()
if (not os.path.exists(vcs_info_file)) or (open(vcs_info_file, 'rb').read() != info):
open(vcs_info_file, 'wb').write(info)
def configure_vcs_info(vcs_info_file, config_var_name, input_file, output_file):
"""Configure the input_file by replacing the variable config_var_name with the contents of the vcs_info_file and save it as output_file."""
info = open(vcs_info_file).read()
backends.do_conf_file(input_file, output_file, {config_var_name : info})
if __name__ == '__main__':
if not len(sys.argv) in [5,6]:
print('Version Control Systems helper script for Meson. Do not run on your own, mmm\'kay?')
print('%s update <vcs_cmd> <vcs_dir> <vcs_info_file>' % sys.argv[0])
print('%s configure <vcs_info_file> <config_var_name> <input_file> <output_file>' % sys.argv[0])
sys.exit(1)
if sys.argv[1] == 'update':
update_vcs_info( *sys.argv[2:5] )
elif sys.argv[1] == 'configure':
configure_vcs_info( *sys.argv[2:6] )
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