Check in protobuf java code and generate lite jar.

third_party/protobuf/protobuf_lite_java_parse_pom.py

Index: third_party/protobuf/protobuf_lite_java_parse_pom.py
diff --git a/third_party/protobuf/protobuf_lite_java_parse_pom.py b/third_party/protobuf/protobuf_lite_java_parse_pom.py
new file mode 100755
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+++ b/third_party/protobuf/protobuf_lite_java_parse_pom.py
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+#!/usr/bin/env python
+# Copyright (c) 2012 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.
+
+"""Parses the Maven pom.xml file for which files to include in a lite build.
+
+Usage:
+    protobuf_lite_java_parse_pom.py {path to pom.xml}
+
+This is a helper file for the protobuf_lite_java target in protobuf.gyp.
+
+It parses the pom.xml file, and looks for all the includes specified in the
+'lite' profile. It does not return and test includes.
+
+The result is printed as one line per entry.
+"""
+
+import sys
+
+from xml.etree import ElementTree
+
+def main(argv):
+  if (len(argv) < 2):
+    usage()
+    return 1
+
+  # Setup all file and XML query paths.
+  pom_path = argv[1]
+  namespace = "{http://maven.apache.org/POM/4.0.0}"
+  profile_path = '{0}profiles/{0}profile'.format(namespace)
+  id_path = '{0}id'.format(namespace)
+  plugin_path = \
+    '{0}build/{0}plugins/{0}plugin'.format(namespace)
+  artifact_path = '{0}artifactId'.format(namespace)
+  include_path = '{0}configuration/{0}includes/{0}include'.format(namespace)
+
+  # Parse XML file and store result in includes list.
+  includes = []
+  for profile in ElementTree.parse(pom_path).getroot().findall(profile_path):
+    id_element = profile.find(id_path)
+    if (id_element is not None and id_element.text == 'lite'):
+      for plugin in profile.findall(plugin_path):
+        artifact_element = plugin.find(artifact_path)
+        if (artifact_element is not None and
+            artifact_element.text == 'maven-compiler-plugin'):
+          for include in plugin.findall(include_path):
+            includes.append(include.text)
+
+  # Print result to stdout, one item on each line.
+  print '\n'.join(includes)
+
+def usage():
+  print(__doc__);
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))