Add script for change version and tag it for release (#56)

Signed-off-by: David Kornel <[email protected]>

.github/scripts/prepare-tag-release.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+# Script change version and run build
+# then adds changes and do a release commit
+# then creates tag with version specified by argument
+# user must then push tags using `git push --tags` and do a release in github
+
+TAG=$1
+echo "Tagging version to ${TAG}"
+
+mvn versions:set -DnewVersion=${TAG}
+mvn clean install
+git add "."
+git diff --staged --quiet || git commit -m "Release ${TAG}"
+git tag -a ${TAG} -m "${TAG}"