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circuitpython/tools/insert-usb-ids.py

36 lines
1.3 KiB

# Reads the USB VID and PID from the file specifed by sys.arg[1] and then
# inserts those values into the template file specified by sys.argv[2],
# printing the result to stdout
from __future__ import print_function
import sys
import re
import string
def parse_usb_ids(filename):
rv = dict()
if filename == 'usbd_desc_cdc_msc.c':
for line in open(filename).readlines():
line = line.rstrip('\r\n')
match = re.match('^#define\s+(\w+)\s+0x(\d+)$', line)
if match:
if match.group(1) == 'USBD_VID':
rv['USB_VID'] = match.group(2)
elif match.group(1) == 'USBD_PID':
rv['USB_PID'] = match.group(2)
if 'USB_VID' in rv and 'USB_PID' in rv:
break
else:
raise Exception("Don't (yet) know how to parse USB IDs from %s" % filename)
for k in ('USB_PID', 'USB_VID'):
if k not in rv:
raise Exception("Unable to parse %s from %s" % (k, filename))
return rv
if __name__ == "__main__":
usb_ids_file = sys.argv[1]
template_file = sys.argv[2]
replacements = parse_usb_ids(usb_ids_file)
for line in open(template_file, 'r').readlines():
print(string.Template(line).safe_substitute(replacements), end='')