Add sonatype publishing

Author: acoburn

.travis.yml

@@ -10,18 +10,45 @@ addons:
 before_cache:
   - rm -f $HOME/.gradle/caches/modules-2/modules-2.lock
   - rm -rf $HOME/.gradle/caches/*/plugin-resolution/
+  - rm -f  $HOME/.gradle/caches/*/fileHashes/fileHashes.bin
+  - rm -f  $HOME/.gradle/caches/*/fileHashes/fileHashes.lock
 
 cache:
   directories:
     - $HOME/.gradle/caches/
     - $HOME/.gradle/wrapper/
 
-matrix:
+stages:
+  - test
+  - deploy
+
+env:
+    - JOB=check
+
+jobs:
     fast_finish: true
 
+    allow_failures:
+      - env: JOB=sonatype
+
     include:
-        - jdk: oraclejdk8
-          after_success: ./gradlew jacocoTestReport coveralls sonarqube
-        - jdk: oraclejdk11
+        # JDK 8
+        - name: "Java 8"
+          stage: test
+          jdk: oraclejdk8
+          script: ./gradlew check install jacocoTestReport
+          after_success: ./gradlew coveralls sonarqube
+
+        # JDK 11
+        - name: "Java 11"
+          stage: test
+          jdk: oraclejdk11
+          script: ./gradlew check install
 
-script: ./gradlew clean check install
+        - name: "Publish to Sonatype"
+          stage: deploy
+          jdk: oraclejdk8
+          env: JOB=sonatype
+          if: branch = master AND type = push
+          # Only automate the publication of SNAPSHOTS
+          script: if [[ $(./gradlew -q getVersion) == *SNAPSHOT* ]]; then ./gradlew publish ; fi

build.gradle

@@ -155,8 +155,8 @@ signing {
 
 uploadArchives {
     repositories.mavenDeployer {
-        def sonatypeUsername = project.hasProperty('ossrhUsername') ? ossrhUsername : ""
-        def sonatypePassword = project.hasProperty('ossrhPassword') ? ossrhPassword : ""
+        def sonatypeUsername = project.hasProperty('ossrhUsername') ? ossrhUsername : System.getenv("SONATYPE_USERNAME") ?: ""
+        def sonatypePassword = project.hasProperty('ossrhPassword') ? ossrhPassword : System.getenv("SONATYPE_PASSWORD") ?: ""
         beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) }
 
         repository(url: "https://oss.sonatype.org/service/local/staging/deploy/maven2/") {
@@ -265,6 +265,12 @@ task docs(type: Javadoc) {
     }
 }
 
+task getVersion {
+    doLast {
+        println project.version
+    }
+}
+
 afterReleaseBuild.dependsOn uploadArchives
 afterReleaseBuild.dependsOn docs