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#!/usr/bin/env python3
import sys
import os
import argparse
from Cython import Tempita as tempita
# XXX: If this import ever fails (does it really?), vendor either
# cython.tempita or numpy/npy_tempita.
def process_tempita(fromfile, outfile=None):
"""Process tempita templated file and write out the result.
The template file is expected to end in `.c.in` or `.pyx.in`:
E.g. processing `template.c.in` generates `template.c`.
"""
if outfile is None:
# We're dealing with a distutils build here, write in-place
outfile = os.path.splitext(fromfile)[0]
from_filename = tempita.Template.from_filename
template = from_filename(fromfile, encoding=sys.getdefaultencoding())
content = template.substitute()
with open(outfile, 'w') as f:
f.write(content)
def main():
parser = argparse.ArgumentParser()
parser.add_argument(
"infile",
type=str,
help="Path to the input file"
)
parser.add_argument(
"-o",
"--outfile",
type=str,
help="Path to the output file"
)
parser.add_argument(
"-i",
"--ignore",
type=str,
help="An ignored input - may be useful to add a "
"dependency between custom targets",
)
args = parser.parse_args()
if not args.infile.endswith('.in'):
raise ValueError(f"Unexpected extension: {args.infile}")
outfile_abs = os.path.join(os.getcwd(), args.outfile)
process_tempita(args.infile, outfile_abs)
if __name__ == "__main__":
main()
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