1 files changed, 63 insertions, 0 deletions
diff --git a/third_party/libwebrtc/build/android/gyp/gcc_preprocess.py b/third_party/libwebrtc/build/android/gyp/gcc_preprocess.py
new file mode 100755
index 0000000000..70ae10fc13
--- /dev/null
+++ b/third_party/libwebrtc/build/android/gyp/gcc_preprocess.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+#
+# Copyright 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import argparse
+import os
+import posixpath
+import re
+import sys
+import zipfile
+
+from util import build_utils
+
+
+def _ParsePackageName(data):
+  m = re.match(r'^\s*package\s+(.*?)\s*;', data, re.MULTILINE)
+  return m.group(1) if m else ''
+
+
+def main(args):
+  args = build_utils.ExpandFileArgs(args)
+
+  parser = argparse.ArgumentParser()
+  parser.add_argument('--include-dirs', help='GN list of include directories.')
+  parser.add_argument('--output', help='Path for .srcjar.')
+  parser.add_argument('--define',
+                      action='append',
+                      dest='defines',
+                      help='List of -D args')
+  parser.add_argument('templates', nargs='+', help='Template files.')
+  options = parser.parse_args(args)
+
+  options.defines = build_utils.ParseGnList(options.defines)
+  options.include_dirs = build_utils.ParseGnList(options.include_dirs)
+
+  gcc_cmd = [
+      'gcc',
+      '-E',  # stop after preprocessing.
+      '-DANDROID',  # Specify ANDROID define for pre-processor.
+      '-x',
+      'c-header',  # treat sources as C header files
+      '-P',  # disable line markers, i.e. '#line 309'
+  ]
+  gcc_cmd.extend('-D' + x for x in options.defines)
+  gcc_cmd.extend('-I' + x for x in options.include_dirs)
+
+  with build_utils.AtomicOutput(options.output) as f:
+    with zipfile.ZipFile(f, 'w') as z:
+      for template in options.templates:
+        data = build_utils.CheckOutput(gcc_cmd + [template])
+        package_name = _ParsePackageName(data)
+        if not package_name:
+          raise Exception('Could not find java package of ' + template)
+        zip_path = posixpath.join(
+            package_name.replace('.', '/'),
+            os.path.splitext(os.path.basename(template))[0]) + '.java'
+        build_utils.AddToZipHermetic(z, zip_path, data=data)
+
+
+if __name__ == '__main__':
+  main(sys.argv[1:])