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#!/usr/bin/env python3
""" Refresh modification times on Cython generated C files
This is sometimes necessary on windows when the git checkout appears to
sometimes checkout the C files with modification times earlier than the pyx
files, triggering an attempt to rebuild the C files with Cython when running a
build.
"""
import optparse
import os
import sys
from os.path import isfile, splitext
from os.path import join as pjoin
def touch(fname, times=None, ns=None, dir_fd=None):
with os.open(fname, os.O_APPEND, dir_fd=dir_fd) as f:
os.utime(f.fileno() if os.utime in os.supports_fd else fname,
times=times, ns=ns, dir_fd=dir_fd)
def main():
parser = optparse.OptionParser(usage='%prog [<root_dir>]')
(opts, args) = parser.parse_args()
if len(args) > 1:
parser.print_help()
sys.exit(-1)
elif len(args) == 1:
root_dir = args[0]
else:
root_dir = os.getcwd()
for dirpath, dirnames, filenames in os.walk(root_dir):
for fn in filenames:
if fn.endswith('.pyx'):
froot, ext = splitext(fn)
cfile = pjoin(dirpath, froot + '.c')
if isfile(cfile):
touch(cfile)
if __name__ == '__main__':
main()
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