Change the automatic deployment to only operate when a user has published a tag that successfully builds

.travis.yml

@@ -1,4 +1,5 @@
 language: java
+# Only the oraclejdk7 build on a tag will actually release
 jdk:
 - oraclejdk7
 - oraclejdk8

build.gradle

@@ -7,19 +7,9 @@ apply plugin: 'application'
 
 group = "com.github.lookout"
 description = "A utility for monitoring the delay of Kafka consumers"
-version = '0.2'
+version = '0.2.1'
 mainClassName = 'com.github.lookout.verspaetung.Main'
-defaultTasks 'clean', 'check'
-
-
-/* Little bit of version shenanigans to get a MINOR number supplied by Travis */
-
-if (System.env.TRAVIS_BUILD_NUMBER) {
-    version = "${version}.${System.env.TRAVIS_BUILD_NUMBER}"
-}
-else {
-    version = "${version}.0-SNAPSHOT"
-}
+defaultTasks 'clean', 'check', 'assemble'
 
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -102,7 +92,12 @@ bintray {
     user = project.bintrayUser
     key = project.bintrayKey
     publish = true
-    dryRun = true
+    /*
+     * Only only publish when we're tagging a release and if we've executed on
+     * the JDK7 build. This is to prevent multiple attempts by the build matrix
+     * to publish the artifacts
+     */
+    dryRun = !((System.env.TRAVIS_TAG as boolean) && (System.env.TRAVIS_JDK_VERSION == 'oraclejdk7'))
     configurations = ['archives']
 
     pkg {