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#!/usr/bin/env python
# Generate version information for a program
#
# Copyright (C) 2015 Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
import sys, os, subprocess, time, socket, optparse
VERSION_FORMAT = """
/* DO NOT EDIT! This is an autogenerated file. See scripts/buildversion.py. */
#define BUILD_VERSION "%s"
"""
# Obtain version info from "git" program
def git_version():
if not os.path.exists('.git'):
return ""
params = "git describe --tags --long --dirty".split()
try:
ver = subprocess.check_output(params).decode().strip()
except:
return ""
return ver
# Look for version in a ".version" file
def file_version():
if not os.path.isfile('.version'):
return ""
try:
f = open('.version', 'r')
ver = f.readline().strip()
f.close()
except:
return ""
return ver
# Generate an output file with the version information
def write_version(outfile, version):
sys.stdout.write("Version: %s\n" % (version,))
f = open(outfile, 'w')
f.write(VERSION_FORMAT % (version,))
f.close()
def main():
usage = "%prog [options] <outputheader.h>"
opts = optparse.OptionParser(usage)
opts.add_option("-e", "--extra", dest="extra", default="",
help="extra version string to append to version")
options, args = opts.parse_args()
if len(args) != 1:
opts.error("Incorrect arguments")
outfile = args[0]
ver = git_version()
if not ver:
ver = file_version()
if not ver:
ver = "?"
btime = time.strftime("%Y%m%d_%H%M%S")
hostname = socket.gethostname()
ver = "%s-%s-%s%s" % (ver, btime, hostname, options.extra)
write_version(outfile, ver)
if __name__ == '__main__':
main()
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