Add axion release gradle plugin to set version

Author: gschueler

RELEASING.md

@@ -0,0 +1,21 @@
+# Release
+
+Uses [axion release](https://axion-release-plugin.readthedocs.io/en/latest/) plugin.
+
+    ./gradlew release
+
+If you need to release with a SNAPSHOT dependency:
+
+    ./gradlew release -Prelease.disableChecks
+
+Otherwise, axion-release will fail the prerelease check. Only do this for testing.
+
+## Next minor version
+
+    ./gradlew markNextVersion -Prelease.incrementer=incrementMinor
+
+Updates minor version without releasing, e.g. 0.1.x-SNAPSHOT becomes 0.2.0-SNAPSHOT
+
+## Force version
+
+    ./gradlew release -Prelease.forceVersion=3.0.0

build.gradle

@@ -13,8 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
-version '1.0.2'
+plugins{
+    id 'pl.allegro.tech.build.axion-release' version '1.9.3'
+}
 
 
 ext.rundeckPluginVersion = '1.2'
@@ -34,6 +35,13 @@ repositories {
     mavenLocal()
 }
 
+scmVersion {
+    tag {
+        prefix = 'v'
+        versionSeparator = ''
+    }
+}
+version scmVersion.version
 configurations {
     pluginLibs