1 files changed, 68 insertions, 0 deletions
diff --git a/tools/warn/warn.py b/tools/warn/warn.py
new file mode 100755
index 0000000000..56e8787d99
--- /dev/null
+++ b/tools/warn/warn.py
@@ -0,0 +1,68 @@
+#!/usr/bin/python
+#
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Simple wrapper to run warn_common with Python standard Pool."""
+
+import multiprocessing
+import signal
+import sys
+
+# pylint:disable=relative-beyond-top-level
+from . import warn_common as common
+
+
+def classify_warnings(args):
+  """Classify a list of warning lines.
+
+  Args:
+    args: dictionary {
+        'group': list of (warning, link),
+        'project_patterns': re.compile(project_list[p][1]),
+        'warn_patterns': list of warn_pattern,
+        'num_processes': number of processes being used for multiprocessing }
+  Returns:
+    results: a list of the classified warnings.
+  """
+  results = []
+  for line, link in args['group']:
+    common.classify_one_warning(line, link, results, args['project_patterns'],
+                                args['warn_patterns'])
+
+  # After the main work, ignore all other signals to a child process,
+  # to avoid bad warning/error messages from the exit clean-up process.
+  if args['num_processes'] > 1:
+    signal.signal(signal.SIGTERM, lambda *args: sys.exit(-signal.SIGTERM))
+  return results
+
+
+def create_and_launch_subprocesses(num_cpu, classify_warnings_fn, arg_groups,
+                                   group_results):
+  pool = multiprocessing.Pool(num_cpu)
+  for cpu in range(num_cpu):
+    proc_result = pool.map(classify_warnings_fn, arg_groups[cpu])
+    if proc_result is not None:
+      group_results.append(proc_result)
+  return group_results
+
+
+def main():
+  use_google3 = False
+  common.common_main(use_google3, create_and_launch_subprocesses,
+                     classify_warnings)
+
+
+if __name__ == '__main__':
+  main()