blob: 7b044578d0b66a8470fb8cc7764b25180746cdd1 [file] [log] [blame]
#!/usr/bin/env python3
#
# split_gds.py --
#
# Script to read a GDS library and write into individual GDS files, one per cell
import os
import sys
import subprocess
def usage():
print('split_gds.py <path_to_gds_library> <magic_techfile> [<file_with_list_of_cells>]')
if __name__ == '__main__':
if len(sys.argv) == 1:
print("No options given to split_gds.py.")
usage()
sys.exit(0)
optionlist = []
arguments = []
for option in sys.argv[1:]:
if option.find('-', 0) == 0:
optionlist.append(option)
else:
arguments.append(option)
if len(arguments) != 3:
print("Wrong number of arguments given to split_gds.py.")
usage()
sys.exit(0)
source = arguments[0]
techfile = arguments[1]
celllist = arguments[2]
if os.path.isfile(celllist):
with open(celllist, 'r') as ifile:
celllist = ifile.read().splitlines()
destdir = os.path.split(source)[0]
gdsfile = os.path.split(source)[1]
with open(destdir + '/split_gds.tcl', 'w') as ofile:
print('#!/usr/bin/env wish', file=ofile)
print('drc off', file=ofile)
print('crashbackups stop', file=ofile)
print('locking off', file=ofile)
print('gds readonly true', file=ofile)
print('gds rescale false', file=ofile)
print('tech unlock *', file=ofile)
print('gds read ' + gdsfile, file=ofile)
for cell in celllist:
print('load ' + cell, file=ofile)
print('gds write ' + cell, file=ofile)
print('quit -noprompt', file=ofile)
mproc = subprocess.run(['magic', '-dnull', '-noconsole',
'-T', techfile,
destdir + '/split_gds.tcl'],
stdin = subprocess.DEVNULL,
stdout = subprocess.PIPE,
stderr = subprocess.PIPE, cwd = destdir,
universal_newlines = True)
if mproc.stdout:
for line in mproc.stdout.splitlines():
print(line)
if mproc.stderr:
print('Error message output from magic:')
for line in mproc.stderr.splitlines():
print(line)
if mproc.returncode != 0:
print('ERROR: Magic exited with status ' + str(mproc.returncode))
os.remove(destdir + '/split_gds.tcl')
exit(0)