Initial commit of public repository open_pdks.
diff --git a/common/split_gds.py b/common/split_gds.py
new file mode 100755
index 0000000..a673c2f
--- /dev/null
+++ b/common/split_gds.py
@@ -0,0 +1,76 @@
+#!/bin/env python3
+# 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('#!/bin/env wish', file=ofile)
+ print('drc 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)
