Support auto-releasing the plugin on git tagging from Travis CI

.travis.yml

@@ -1,24 +1,20 @@
 language: groovy
 sudo: false
-
 install:
- - ./gradlew clean
-
+- "./gradlew clean"
 script:
- - ./gradlew -S -i
- - ./gradlew -S -i gradleTest
-
+- "./gradlew -S -i"
+- "./gradlew -S -i gradleTest"
 jdk:
- - oraclejdk7
- - oraclejdk8
- - openjdk7
-
-os:
- - linux
- - osx
-
-env: TERM=dumb
-
+- oraclejdk7
+- oraclejdk8
+- openjdk7
+env:
+  matrix:
+  - TERM=dumb
+  global:
+    secure: MwCVmyShcCHpe9CAQqveN5FWA4z0H+iYv/pzae0up1pCN9OqTL1h9jHkVoMhOQGw5aQQiptObt+5Y2aNlxSXBDPlpyQHV3EtH1ABJxNbdVNvhm2DACvUgF1uGinP2Gof7hm+2S54vEqAaYSd516lMV741H2CvmpjQhaJNpKeQO0=
 cache:
   directories:
-    - $HOME/.gradle
+  - "$HOME/.gradle"
+after_success: "./gradlew bintrayUpload -i -PbintrayUser=rtyler -PbintrayKey=${BINTRAY_KEY}"

build.gradle

@@ -19,9 +19,15 @@ apply from: 'gradle/integration-test.gradle'
 apply from: 'gradle/releasing.gradle'
 
 group = 'com.github.jruby-gradle'
-version = '0.2.0'
+version = '0.3.0'
 defaultTasks 'check', 'assemble'
 
+// Any time we're not expicitly saying "build me a release build" we'll change
+// the version to -SNAPSHOT
+if (!(System.env.TRAVIS_TAG as Boolean)) {
+    version = "${version}-SNAPSHOT"
+}
+
 repositories {
     jcenter()
 }

gradle/releasing.gradle

@@ -13,8 +13,13 @@ bintray {
     user = project.bintrayUser
     key = project.bintrayKey
     publish = true
-    dryRun = false
     configurations = ['archives']
+    /*
+     * 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'))
 
     pkg {
         userOrg = 'jruby-gradle'
@@ -26,7 +31,7 @@ bintray {
             name = project.version
             vcsTag = "v${project.version}"
             attributes = ['gradle-plugin' : 'com.github.jruby-gradle.storm:com.github.jruby-gradle:jruby-gradle-storm-plugin']
-            desc = 'This plugin encapsulates Storm topology building functionality for JRuby Gradle projects'
+            desc = project.description
         }
     }
 }