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# Copyright 2016 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import re
import subprocess
import sys
# This script executes libool and filters out logspam lines like:
# '/path/to/libtool: file: foo.o has no symbols'
SUPPRESSED_PATTERNS = [
re.compile(v) for v in [
r'^.*libtool: (?:for architecture: \S* )?file: .* has no symbols$',
# Xcode 11 spelling of the "empty archive" warning.
# TODO(thakis): Remove once we require Xcode 12.
r'^.*libtool: warning for library: .* the table of contents is empty ' \
r'\(no object file members in the library define global symbols\)$',
# Xcode 12 spelling of the "empty archive" warning.
r'^warning: .*libtool: archive library: .* ' \
r'the table of contents is empty ',
r'\(no object file members in the library define global symbols\)$',
r'^.*libtool: warning same member name \(\S*\) in output file used ' \
r'for input files: \S* and: \S* \(due to use of basename, ' \
r'truncation, blank padding or duplicate input files\)$',
]
]
def ShouldSuppressLine(line):
"""Returns whether the line should be filtered out."""
for pattern in SUPPRESSED_PATTERNS:
if pattern.match(line):
return True
return False
def Main(cmd_list):
env = os.environ.copy()
libtoolout = subprocess.Popen(cmd_list, stderr=subprocess.PIPE, env=env)
_, err = libtoolout.communicate()
for line in err.decode('UTF-8').splitlines():
if not ShouldSuppressLine(line):
print(line, file=sys.stderr)
return libtoolout.returncode
if __name__ == '__main__':
sys.exit(Main(sys.argv[1:]))
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