add release script

Author: Vladimir Kotal

dev/release.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+#
+# Trigger new release creation on Github.
+# Assumes working Maven + Git.
+#
+# see https://github.com/OpenGrok/opengrok/wiki/Release-process
+#
+
+if (( $# != 1 )); then
+	echo "usage: `basename $0` <version>"
+	exit 1
+fi
+
+VERSION=$1
+
+if [[ ! -d $PWD/opengrok-indexer ]]; then
+	echo "This needs to be run from top-level directory of the repository"
+	exit 1
+fi
+
+ver=$( git tag -l "$VERSION" )
+if (( $? != 0 )); then
+	echo "Cannot determine tag"
+	exit 1
+fi
+if [[ $ver == $VERSION ]]; then
+	echo "Tag $VERSION already exists"
+	exit 1
+fi
+
+mvn versions:set -DgenerateBackupPoms=false -DnewVersion=$VERSION && \
+    git commit pom.xml **/pom.xml -m $VERSION && \
+    git push && \
+    git tag $VERSION
+    git push origin tag $VERSION