Add 'updateLastVersionValue' task

Author: jmini

build.gradle

@@ -147,3 +147,18 @@ task checkLastVersionValue {
         }
     }
 }
+
+def updateLastVersionValueTask = tasks.register('updateLastVersionValue') {
+    doLast {
+        def propertiesFile = file('gradle.properties')
+        def content = propertiesFile.text
+        content = content.replaceAll("lastVersion=[0-9\\.]+", "lastVersion=" + version.replace('-SNAPSHOT', ''))
+        propertiesFile.text = content
+    }
+}
+
+model {
+    tasks.unSnapshotVersion {
+        dependsOn updateLastVersionValueTask
+    }
+}