obscache: ignore permission and OS errors when writing
In practice we always update this cache along side a new transaction, with lock
taken so permission issues should not happens. However, staying on the safe side
is better. Errors during Cache update should not block Mercurial operations.
import sys
formatted_args = []
UNSAFE_CHARACTERS = [" ", "!", "\"", "#", "$", "&", "'", "(", ")", "*", ",", ";", "<", ">", "?", "[", "\\", "]", "^", "`", "{", "|", "}", ":", "~", "/"]
def find_unsafe(arg):
for unsafe in UNSAFE_CHARACTERS:
if unsafe in arg:
return True
return False
for arg in sys.argv[1:]:
if find_unsafe(arg):
formatted_args.append('"%s"' % arg)
else:
formatted_args.append(arg)
print("$ " + " ".join(formatted_args))