Merge #15534: [test] lint-format-strings: open files sequentially (fix for OS X)

21be609b49 In lint-format-strings, open files sequentially (Glenn Willen)

Pull request description:

  In lint-format-strings, we use python argparse to read our file arguments. In
  this mode, argparse opens all the files simultaneously. On OS X, where the
  default filehandle limit is 128, this causes the lint to fail. Instead, ask
  argparse for our filename arguments as strings, and open them one at a time
  using 'with open'.

Tree-SHA512: 4c7dabf98818a7c5d83ab10c61b89a26957fe399e39e933e30c561cb45c5e8ba6f6aedcde8343da0c32ee340289a8897db6a33708e35ee381334ee27e3f4d356
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MarcoFalke 2019-03-05 09:40:19 -05:00
commit 4952a95358
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@ -262,27 +262,27 @@ def main():
parser.add_argument("--skip-arguments", type=int, help="number of arguments before the format string "
"argument (e.g. 1 in the case of fprintf)", default=0)
parser.add_argument("function_name", help="function name (e.g. fprintf)", default=None)
parser.add_argument("file", type=argparse.FileType("r", encoding="utf-8"), nargs="*", help="C++ source code file (e.g. foo.cpp)")
parser.add_argument("file", nargs="*", help="C++ source code file (e.g. foo.cpp)")
args = parser.parse_args()
exit_code = 0
for f in args.file:
for function_call_str in parse_function_calls(args.function_name, f.read()):
parts = parse_function_call_and_arguments(args.function_name, function_call_str)
relevant_function_call_str = unescape("".join(parts))[:512]
if (f.name, relevant_function_call_str) in FALSE_POSITIVES:
continue
if len(parts) < 3 + args.skip_arguments:
exit_code = 1
print("{}: Could not parse function call string \"{}(...)\": {}".format(f.name, args.function_name, relevant_function_call_str))
continue
argument_count = len(parts) - 3 - args.skip_arguments
format_str = parse_string_content(parts[1 + args.skip_arguments])
format_specifier_count = count_format_specifiers(format_str)
if format_specifier_count != argument_count:
exit_code = 1
print("{}: Expected {} argument(s) after format string but found {} argument(s): {}".format(f.name, format_specifier_count, argument_count, relevant_function_call_str))
continue
for filename in args.file:
with open(filename, "r", encoding="utf-8") as f:
for function_call_str in parse_function_calls(args.function_name, f.read()):
parts = parse_function_call_and_arguments(args.function_name, function_call_str)
relevant_function_call_str = unescape("".join(parts))[:512]
if (f.name, relevant_function_call_str) in FALSE_POSITIVES:
continue
if len(parts) < 3 + args.skip_arguments:
exit_code = 1
print("{}: Could not parse function call string \"{}(...)\": {}".format(f.name, args.function_name, relevant_function_call_str))
continue
argument_count = len(parts) - 3 - args.skip_arguments
format_str = parse_string_content(parts[1 + args.skip_arguments])
format_specifier_count = count_format_specifiers(format_str)
if format_specifier_count != argument_count:
exit_code = 1
print("{}: Expected {} argument(s) after format string but found {} argument(s): {}".format(f.name, format_specifier_count, argument_count, relevant_function_call_str))
continue
sys.exit(exit_code)