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#!/usr/bin/env python3
#
# Check for the first line in a file generated with gmmproc,
# to see which gmmproc version was used, to see whether
# to enable __declspec(dllexport to export symbols). This
# is *not* intended for source files that are not generated
# with gmmproc.
#
# Author: Chun-wei Fan April 2, 2020
import argparse
import os
import sys
min_required_gmmproc_ver = '2.64.3'
parser = argparse.ArgumentParser(description='Check gmmproc version used.')
parser.add_argument('--file',
dest='file',
help='Generated .cc/.h file to check gmmproc version')
parser.add_argument('--gmmprocdir',
dest='gmmprocdir',
help='Directory where gmmproc is located')
args = parser.parse_args()
if args.file is None and args.gmmprocdir is None:
raise ValueError('Either --file or --gmmprocdir must be specified')
if args.gmmprocdir is not None:
# gmmprocdir is specified: Check version string in gmmproc
gmmproc_path = os.path.join(args.gmmprocdir, 'gmmproc')
if not os.path.exists(gmmproc_path):
raise ValueError('A valid directory to locate gmmproc must be ' \
'specified with --gmmprocdir=<directory>')
gmmproc_ver_str = None
with open(gmmproc_path, 'r') as f:
for line in f:
if line.startswith(' $main::glibmm_version = '):
gmmproc_ver_str = line[line.find('\"') + 1:line.rfind('\"')]
if gmmproc_ver_str is None:
raise ValueError('The gmmproc at %s is invalid' % gmmproc_path)
gmmproc_ver = gmmproc_ver_str.split('.')
else:
# A pre-generated file is specified via --file
if not os.path.exists(args.file):
raise FileNotFoundError('File specified with --file does not exist')
# We only allow .h/.cc files to run this check
if not args.file.endswith('.cc') and \
not args.file.endswith('.h'):
raise ValueError('Only .cc/.h files are accepted here')
# Now grab the first line of the file we are checking for
f = open(args.file)
firstline = f.readline()
f.close()
# Check for gmmproc signature...
if not firstline.startswith('// Generated by gmmproc '):
raise ValueError('Specified file is not generated by gmmproc')
tokens = firstline.split()
gmmproc_ver = tokens[tokens.index('gmmproc') + 1].split('.')
# Now compare the gmmproc version against the one we want
# (2.64.3 or later)
gmmproc_major = int(gmmproc_ver[0])
gmmproc_minor = int(gmmproc_ver[1])
gmmproc_micro = int(gmmproc_ver[2])
min_required_ver = min_required_gmmproc_ver.split('.')
min_major_ver = int(min_required_ver[0])
min_minor_ver = int(min_required_ver[1])
min_micro_ver = int(min_required_ver[2])
if gmmproc_major > min_major_ver or \
(gmmproc_major == min_major_ver and \
gmmproc_minor > min_minor_ver) or \
(gmmproc_major == min_major_ver and \
gmmproc_minor == min_minor_ver and \
gmmproc_micro >= min_micro_ver):
sys.exit(0)
else:
sys.exit(1)
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