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#!/usr/bin/python3
import os, re, sys
from glob import glob
from os.path import join, dirname as up
SWIG_MINIMUM_VERSION = (2,0,7)
def str_version(tpl):
return ".".join(map(str, tpl))
def find_swig():
# return `which swig` or else None
which_swig = os.popen("which swig")
which_swig_output = which_swig.read()
which_swig_status = which_swig.close()
if which_swig_status is None:
return which_swig_output.strip()
else:
return None
def swig_version(swigExecutablePath):
"""
Return the version of the swig provided, or None if it is not a
valid SWIG.
"""
swig_version_pipe = os.popen(swigExecutablePath + " -version")
swig_version_output = swig_version_pipe.read()
swig_version_status = swig_version_pipe.close()
if swig_version_status == None:
m = re.search("SWIG Version (.*)\n", swig_version_output)
if m:
swig_version_string = m.group(1)
return tuple(map(int, swig_version_string.split(".")))
else:
return None
if __name__ == '__main__':
if len(sys.argv) > 1:
swig = sys.argv[1]
else:
swig = find_swig()
if swig is None or swig_version(swig) < SWIG_MINIMUM_VERSION:
print("SWIG version at least %s required!" \
% str_version(SWIG_MINIMUM_VERSION), file=sys.stderr)
print("Use --swig=<path> to specify SWIG location.", file=sys.stderr)
sys.exit(1)
else:
print(swig)
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