Added script for generating cell layouts from GDS and tech files

Signed-off-by: Grzegorz Latosinski <glatosinski@antmicro.com>
This commit is contained in:
Grzegorz Latosinski 2020-11-19 13:54:41 +01:00
parent 7294a3e46e
commit 9a40aa6fc8
1 changed files with 109 additions and 0 deletions

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Copyright 2020 SkyWater PDK Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# SPDX-License-Identifier: Apache-2.0
import argparse
from pathlib import Path
import sys
import contextlib
import traceback
import errno
from gds_to_svg import convert_to_svg
def main(argv):
parser = argparse.ArgumentParser(prog=argv[0])
parser.add_argument(
'libraries_dir',
help='Path to the libraries directory of skywater-pdk',
type=Path
)
parser.add_argument(
'tech_file',
help='Path to the .tech file',
type=Path
)
parser.add_argument(
'output_dir',
help='Path to the output directory',
type=Path
)
parser.add_argument(
'--libname',
help='Library name to generate cell layouts for from GDS files',
type=str
)
parser.add_argument(
'--version',
help='Version to generate cell layouts for from GDS files',
type=str
)
parser.add_argument(
'--create-dirs',
help='Create directories for output when not present',
action='store_true'
)
parser.add_argument(
'--failed-inputs',
help='Path to GDS files for which Magic failed to generate SVG files',
type=Path
)
args = parser.parse_args(argv[1:])
gdsfiles = list(args.libraries_dir.rglob('*.gds'))
nc = contextlib.nullcontext()
with open(args.failed_inputs, 'w') if args.failed_inputs else nc as err:
for gdsfile in gdsfiles:
outdir = (args.output_dir /
gdsfile.parent.resolve()
.relative_to(args.libraries_dir.resolve()))
library = outdir.relative_to(args.output_dir).parts[0]
ver = outdir.relative_to(args.output_dir).parts[1]
if args.libname and args.libname != library:
continue
if args.version and args.version != ver:
continue
print(f'===> {str(gdsfile)}')
try:
if not outdir.exists():
if args.create_dirs:
outdir.mkdir(parents=True)
else:
print(f'The output directory {str(outdir)} is missing')
print('Run the script with --create-dirs')
return errno.ENOENT
outfile = outdir / gdsfile.with_suffix('.svg').name
convert_to_svg(gdsfile, args.tech_file, outfile)
except Exception:
print(
f'Failed to generate cell layout for {str(gdsfile)}',
file=sys.stderr
)
traceback.print_exc()
err.write(f'{gdsfile}\n')
print('Finished generating cell layouts')
return 0
if __name__ == '__main__':
sys.exit(main(sys.argv))