Specify additional task outputs

Author: welandaz

gradle/java-setup.gradle

@@ -17,14 +17,22 @@ apply plugin: 'com.github.spotbugs'
 spotbugs {
 	toolVersion = VER_SPOTBUGS
 	ignoreFailures = false 	// bug free or it doesn't ship!
-	reportsDir = file('build/spotbugs')
 	reportLevel = 'medium'	// low|medium|high (low = sensitive to even minor mistakes)
 	omitVisitors = [
 		'FindReturnRef'] // https://spotbugs.readthedocs.io/en/latest/detectors.html#findreturnref
 }
 tasks.named('spotbugsTest') {
 	enabled = false
 }
+
+tasks.withType(com.github.spotbugs.snom.SpotBugsTask).configureEach {
+	outputs.file("$buildDir/reports/spotbugs/${it.name}.html")
+	outputs.file("$buildDir/spotbugs/auxclasspath/${it.name}")
+	reports {
+		html.enabled = true
+	}
+}
+
 tasks.named('spotbugsMain') {
 	// only run on Java 8 (no benefit to running twice)
 	enabled = org.gradle.api.JavaVersion.current() == org.gradle.api.JavaVersion.VERSION_11

plugin-maven/build.gradle

@@ -27,7 +27,7 @@ import java.nio.file.Files
 import java.nio.file.Paths
 
 import static java.nio.charset.StandardCharsets.UTF_8
-import static java.nio.file.StandardOpenOption.CREATE_NEW
+import static java.nio.file.StandardOpenOption.CREATE
 import static java.nio.file.StandardOpenOption.TRUNCATE_EXISTING
 
 ext.artifactId = project.artifactIdMaven
@@ -91,9 +91,7 @@ dependencies {
 	testImplementation "org.apache.maven:maven-core:${VER_MAVEN_API}"
 }
 
-task cleanMavenProjectDir(type: Delete) { delete MAVEN_PROJECT_DIR }
-
-task copySourceFiles(type: Sync, dependsOn: cleanMavenProjectDir) {
+task copySourceFiles(type: Sync) {
 	from "src/main/java"
 	into "${MAVEN_PROJECT_DIR}/src/main/java"
 }
@@ -137,6 +135,9 @@ libs.each {
 }
 
 task createPomXml(dependsOn: installLocalDependencies) {
+	def newPomXml = Paths.get(MAVEN_PROJECT_DIR, "pom.xml")
+
+	outputs.file(newPomXml)
 	doLast {
 		def additionalDependencies = project.configurations.runtimeClasspath.resolvedConfiguration.resolvedArtifacts.findAll {
 			return !libs.contains(it.moduleVersion.id.name)
@@ -158,10 +159,9 @@ task createPomXml(dependsOn: installLocalDependencies) {
 		]
 
 		def pomXmlTemplate = Paths.get(PROJECT_DIR, "src/test/resources/pom-build.xml.mustache")
-		def newPomXml = Paths.get(MAVEN_PROJECT_DIR, "pom.xml")
 
 		Files.newBufferedReader(pomXmlTemplate).withCloseable { reader ->
-			Files.newBufferedWriter(newPomXml, UTF_8, CREATE_NEW, TRUNCATE_EXISTING).withCloseable { writer ->
+			Files.newBufferedWriter(newPomXml, UTF_8, CREATE, TRUNCATE_EXISTING).withCloseable { writer ->
 				def mustache = new DefaultMustacheFactory().compile(reader, "pom")
 				mustache.execute(writer, versions)
 			}
@@ -170,11 +170,12 @@ task createPomXml(dependsOn: installLocalDependencies) {
 }
 
 task runMavenBuild(type: Exec, dependsOn: [
-	cleanMavenProjectDir,
 	copySourceFiles,
 	copyMvnw,
 	createPomXml
 ]) {
+	outputs.dir(LOCAL_MAVEN_REPO_DIR)
+
 	workingDir MAVEN_PROJECT_DIR
 	// -B batch mode to make dependency download logging less verbose
 	commandLine mvnw("clean install -B -Dmaven.repo.local=${LOCAL_MAVEN_REPO_DIR}")