Add a script to build a snapshot version

gwtorm is only used by Gerrit Code Review, which does not especially
care about release versions. Streamline the process to make and deploy
simple changes to gwtorm that can be used by Gerrit.

Change-Id: If924d3824bb74b5c95a0ffce471417a597682323

build-snapshot.sh

diff --git a/build-snapshot.sh b/build-snapshot.sh
new file mode 100755
index 0000000..2d669d5
--- /dev/null
+++ b/build-snapshot.sh
@@ -0,0 +1,29 @@
+#!/bin/bash -e
+# Copyright (C) 2014 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.
+
+V=$(git describe | sed 's/^v//')
+sed -i "0,/<version>/s/<version>[^<]*<\/version>/<version>$V<\/version>/" pom.xml
+mvn clean && mvn package -DskipTests -Dmaven.javadoc.skip=true
+
+cat <<EOF
+
+
+Set version to $V
+
+To run tests:
+  mvn package -Dmaven.javadoc.skip=true
+To deploy a snapshot:'
+  mvn clean && mvn deploy -DskipTests -Dmaven.javadoc.skip=true
+EOF