message package reindexing code.

package.xml

@@ -17,9 +17,11 @@
   <build_depend>rospy</build_depend>
   <build_depend>java</build_depend>
   <build_depend>ant</build_depend>
+  <build_depend>rosinstall_generator</build_depend>
   <run_depend>python-rospkg</run_depend>
   <run_depend>rospy</run_depend>
   <run_depend>java</run_depend>
   <run_depend>ant</run_depend>
   <run_depend>catkin</run_depend>
+  <run_depend>rosinstall_generator</run_depend>
 </package>

setup.py

@@ -8,7 +8,7 @@ d = generate_distutils_setup(
     package_dir={'': 'src'},
     scripts=['scripts/catkin_create_android_repo',
              'scripts/catkin_create_android_pkg',
-             'scripts/catkin_create_android_library_pkg'
+             'scripts/catkin_create_android_library_pkg',
             ],
     package_data = {'rosjava_build_tools': [
            'templates/android_package/*',

src/rosjava_build_tools/__init__.py

@@ -12,3 +12,4 @@ import console
 from init_repo import init_android_repo
 from create_package import create_android_package
 from utils import which
+from release import scrape_for_release_message_packages

src/rosjava_build_tools/release.py

+#!/usr/bin/env python
+#
+# License: Apache 2.0
+#   https://raw.github.com/rosjava/rosjava_build_tools/license/LICENSE
+#
+
+##############################################################################
+# Imports
+##############################################################################
+
+from rosinstall_generator.generator import ARG_ALL_PACKAGES, generate_rosinstall, sort_rosinstall
+
+##############################################################################
+# Imports
+##############################################################################
+
+
+def scrape_for_release_message_packages(track):
+    try:
+        # Should use ROS_DISTRO here, or some passed in value.
+        rosinstall_data = generate_rosinstall(track, [ARG_ALL_PACKAGES],
+            wet_only=True, dry_only=False
+            )
+    except RuntimeError as unused_e:
+        raise RuntimeError("error occured while scraping rosdistro for msg package naems and versions.")
+    rosinstall_data = sort_rosinstall(rosinstall_data)
+    #print("%s" % rosinstall_data)
+    packages = []
+    for element in rosinstall_data:
+        for unused_key, value in element.items():
+            if "_msgs" in value['local-name'] or "_srvs" in value['local-name']:
+                name = value['local-name']
+                # bloom version is usually of the form: 'release/hydro/zeroconf_msgs/0.2.1-0'
+                version = value['version'].split('/')[-1].split('-')[0]
+                pkg = {'name': name, 'version': version}
+                packages.append(pkg)
+    return packages
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