feat(echo-bom): publish echo-bom (spinnaker#578)

publish `echo-bom` so we don't have to specify kork version in projects that depend on echo
thus causing potential misconfigurations with different kork version

build.gradle

@@ -29,16 +29,18 @@ buildscript {
 }
 
 allprojects {
-    group = "com.netflix.spinnaker.echo"
-    apply plugin: "spinnaker.base-project"
-    if (Boolean.valueOf(enablePublishing)) {
-        apply plugin: "spinnaker.project"
-    }
+  group = "com.netflix.spinnaker.echo"
+  apply plugin: "spinnaker.base-project"
+  if (Boolean.valueOf(enablePublishing)) {
+    apply plugin: "spinnaker.project"
+  }
+
+  group = "com.netflix.spinnaker.echo"
+  if (name != "echo-bom") {
     apply plugin: "java-library"
     apply plugin: "groovy"
     apply plugin: 'jacoco'
 
-    group = "com.netflix.spinnaker.echo"
 
     test {
       testLogging {
@@ -51,39 +53,41 @@ allprojects {
         jvmArgs '-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=8189'
       }
     }
-
+  }
 }
 
 subprojects {
+  if (name != "echo-bom") {
     jacoco {
-        toolVersion = '0.8.3'
+      toolVersion = '0.8.3'
     }
 
     dependencies {
-        implementation platform("com.netflix.spinnaker.kork:kork-bom:$korkVersion")
-        annotationProcessor platform("com.netflix.spinnaker.kork:kork-bom:$korkVersion")
-        testAnnotationProcessor platform("com.netflix.spinnaker.kork:kork-bom:$korkVersion")
-        compileOnly "org.projectlombok:lombok"
-        annotationProcessor "org.projectlombok:lombok"
-        testAnnotationProcessor "org.projectlombok:lombok"
+      implementation platform("com.netflix.spinnaker.kork:kork-bom:$korkVersion")
+      annotationProcessor platform("com.netflix.spinnaker.kork:kork-bom:$korkVersion")
+      testAnnotationProcessor platform("com.netflix.spinnaker.kork:kork-bom:$korkVersion")
+      compileOnly "org.projectlombok:lombok"
+      annotationProcessor "org.projectlombok:lombok"
+      testAnnotationProcessor "org.projectlombok:lombok"
 
-        implementation "org.codehaus.groovy:groovy-all"
-        implementation "com.github.ben-manes.caffeine:guava"
-        implementation "com.netflix.spectator:spectator-api"
-        implementation "org.slf4j:slf4j-api"
-        implementation "net.logstash.logback:logstash-logback-encoder"
-        implementation "org.springframework.boot:spring-boot-properties-migrator"
+      implementation "org.codehaus.groovy:groovy-all"
+      implementation "com.github.ben-manes.caffeine:guava"
+      implementation "com.netflix.spectator:spectator-api"
+      implementation "org.slf4j:slf4j-api"
+      implementation "net.logstash.logback:logstash-logback-encoder"
+      implementation "org.springframework.boot:spring-boot-properties-migrator"
 
-        testImplementation "org.spockframework:spock-core"
+      testImplementation "org.spockframework:spock-core"
 
-        testImplementation "org.springframework.boot:spring-boot-starter-test"
-        testImplementation "org.spockframework:spock-core"
-        testImplementation "org.spockframework:spock-spring"
-        testImplementation "org.springframework:spring-test"
-        testImplementation "org.hamcrest:hamcrest-core"
-        testRuntimeOnly "cglib:cglib-nodep"
-        testRuntimeOnly "org.objenesis:objenesis"
+      testImplementation "org.springframework.boot:spring-boot-starter-test"
+      testImplementation "org.spockframework:spock-core"
+      testImplementation "org.spockframework:spock-spring"
+      testImplementation "org.springframework:spring-test"
+      testImplementation "org.hamcrest:hamcrest-core"
+      testRuntimeOnly "cglib:cglib-nodep"
+      testRuntimeOnly "org.objenesis:objenesis"
     }
+  }
 }
 
 defaultTasks ':echo-web:run'

echo-bom/echo-bom.gradle

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2019 Netflix, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+apply plugin: "java-platform"
+apply plugin: "maven-publish"
+
+// without this building the pom fails when using the Nebula publishing plugin
+configurations {
+  create("compileOnly")
+}
+
+javaPlatform {
+  allowDependencies()
+}
+
+
+if (Boolean.valueOf(enablePublishing)) {
+  publishing {
+    publications {
+      nebula(MavenPublication) {
+        from components.javaPlatform
+      }
+    }
+  }
+}
+
+dependencies {
+  api(platform("com.netflix.spinnaker.kork:kork-bom:${korkVersion}"))
+
+  constraints {
+    rootProject
+      .subprojects
+      .findAll { it != project }
+      .each { api(project(it.path)) }
+  }
+}

gradle/buildViaTravis.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # This script will build the project.
 
-GRADLE="./gradlew -I gradle/init-publish.gradle"
+GRADLE="./gradlew -PenablePublishing=true"
 
 if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then
   echo -e "Build Pull Request #$TRAVIS_PULL_REQUEST => Branch [$TRAVIS_BRANCH]"

gradle/installViaTravis.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 # This script will build the project.
 
-GRADLE="./gradlew -I gradle/init-publish.gradle"
+GRADLE="./gradlew -PenablePublishing=true"
 
 if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then
   echo -e "Assemble Pull Request #$TRAVIS_PULL_REQUEST => Branch [$TRAVIS_BRANCH]"

settings.gradle

@@ -26,7 +26,8 @@ include 'echo-artifacts',
         'echo-pubsub-core',
         'echo-pubsub-aws',
         'echo-pubsub-google',
-        'echo-test'
+        'echo-test',
+        'echo-bom'
 
 rootProject.name = 'echo'