Configure assemble to depend upon bootJar or bootWar

Closes gh-8824

spring-boot-tools/spring-boot-gradle-plugin/src/main/asciidoc/packaging.adoc

@@ -11,6 +11,8 @@ an application's dependencies and can then be run with `java -jar`.
 
 Executable jars can be built using the `bootJar` task. The task is automatically created
 when the `java` plugin is applied and is an instance of {boot-jar-javadoc}[`BootJar`].
+The `assemble` task is automatically configured to depend upon the `bootJar` task so
+running `assemble` (or `build`) will also run the `bootJar` task.
 
 
 
@@ -19,6 +21,8 @@ when the `java` plugin is applied and is an instance of {boot-jar-javadoc}[`Boot
 
 Executable wars can be built using the `bootWar` task. The task is automatically created
 when the `war` plugin is applied and is an instance of {boot-war-javadoc}[`BootWar`].
+The `assemble` task is automatically configured to depend upon the `bootWar` task so
+running `assemble` (or `build`) will also run the `bootWar` task.
 
 
 
@@ -43,6 +47,27 @@ web-based integration tests will fail.
 
 
 
+[[packaging-executable-and-normal]]
+=== Packaging executable and normal archives
+
+By default, when the `bootJar` or `bootWar` tasks are configured, the `jar` or `war`
+tasks are disabled. A project can be configured to build both an executable archive
+and a normal archive at the same time by enabling the `jar` or `war` task:
+
+[source,groovy,indent=0,subs="verbatim"]
+----
+include::../gradle/packaging/boot-jar-and-jar.gradle[tags=enable-jar]
+----
+
+To avoid the executable archive and the normal archive from being written to the same
+location, one or the other should be configured to use a different location. One way to
+do so is by configuring a classifier:
+
+[source,groovy,indent=0,subs="verbatim"]
+----
+include::../gradle/packaging/boot-jar-and-jar.gradle[tags=classifier]
+----
+
 [[packaging-executable-configuring]]
 === Configuring executable archive packaging
 
@@ -164,4 +189,4 @@ manifest to set the `Main-Class` attribute:
 [source,groovy,indent=0,subs="verbatim"]
 ----
 include::../gradle/packaging/boot-war-properties-launcher.gradle[tags=properties-launcher]
-----
+----

spring-boot-tools/spring-boot-gradle-plugin/src/main/asciidoc/reacting.adoc

@@ -14,13 +14,15 @@ plugin:
    executable, fat jar for the project. The jar will contain everything on the runtime
    classpath of the main source set; classes are packaged in `BOOT-INF/classes` and jars
    are packaged in `BOOT-INF/lib`
-2. Creates a {software-component}[software component] named `bootJava` that contains the
+2. Configures the `assemble` task to depend on the `bootJar` task.
+3. Disables the `jar` task.
+4. Creates a {software-component}[software component] named `bootJava` that contains the
 	archive produced by the `bootJar` task.
-3. Creates a {boot-run-javadoc}[`BootRun`] task named `bootRun` that can be used to run
+5. Creates a {boot-run-javadoc}[`BootRun`] task named `bootRun` that can be used to run
    your application.
-4. Creates a configuration named `bootArchives` that contains the artifact produced by
+6. Creates a configuration named `bootArchives` that contains the artifact produced by
    the `bootJar` task.
-5. Configures any `JavaCompile` tasks with no configured encoding to use `UTF-8`.
+7. Configures any `JavaCompile` tasks with no configured encoding to use `UTF-8`.
 
 
 
@@ -32,9 +34,11 @@ When Gradle's {war-plugin}[`war` plugin] is applied to a project, the Spring Boo
 1. Creates a {boot-war-javadoc}[`BootWar`] task named `bootWar` that will create an
    executable, fat war for the project. In addition to the standard packaging, everything
    in the `providedRuntime` configuration will be packaged in `WEB-INF/lib-provided`.
-2. Creates a {software-component}[software component] named `bootWeb` that contains the
+2. Configures the `assemble` task to depend on the `bootWar` task.
+3. Disables the `war` task.
+4. Creates a {software-component}[software component] named `bootWeb` that contains the
    archive produced by the `bootWar` task.
-3. Configures the `bootArchives` configuration to contain the artifact produced by the
+5. Configures the `bootArchives` configuration to contain the artifact produced by the
    `bootWar` task.
 
 

spring-boot-tools/spring-boot-gradle-plugin/src/main/gradle/packaging/boot-jar-and-jar.gradle

@@ -0,0 +1,24 @@
+buildscript {
+	dependencies {
+		classpath files(pluginClasspath.split(','))
+	}
+}
+
+apply plugin: 'org.springframework.boot'
+apply plugin: 'java'
+
+// tag::enable-jar[]
+jar {
+	enabled = true
+}
+// end::enable-jar[]
+
+// tag::classifier[]
+bootJar {
+	classifier = 'boot'
+}
+// end::classifier[]
+
+bootJar {
+	mainClass = 'com.example.Application'
+}

spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/plugin/JavaPluginAction.java

@@ -24,6 +24,7 @@ import org.gradle.api.Plugin;
 import org.gradle.api.Project;
 import org.gradle.api.file.FileCollection;
 import org.gradle.api.internal.artifacts.publish.ArchivePublishArtifact;
+import org.gradle.api.plugins.BasePlugin;
 import org.gradle.api.plugins.JavaPlugin;
 import org.gradle.api.plugins.JavaPluginConvention;
 import org.gradle.api.tasks.SourceSet;
@@ -52,12 +53,23 @@ final class JavaPluginAction implements PluginApplicationAction {
 
 	@Override
 	public void execute(Project project) {
+		disableJarTask(project);
+		configureBuildTask(project);
 		BootJar bootJar = configureBootJarTask(project);
 		configureArtifactPublication(project, bootJar);
 		configureBootRunTask(project);
 		configureUtf8Encoding(project);
 	}
 
+	private void disableJarTask(Project project) {
+		project.getTasks().getByName(JavaPlugin.JAR_TASK_NAME).setEnabled(false);
+	}
+
+	private void configureBuildTask(Project project) {
+		project.getTasks().getByName(BasePlugin.ASSEMBLE_TASK_NAME)
+				.dependsOn(this.singlePublishedArtifact);
+	}
+
 	private BootJar configureBootJarTask(Project project) {
 		BootJar bootJar = project.getTasks().create(SpringBootPlugin.BOOT_JAR_TASK_NAME,
 				BootJar.class);

spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/plugin/SinglePublishedArtifact.java

@@ -16,8 +16,10 @@
 
 package org.springframework.boot.gradle.plugin;
 
+import org.gradle.api.Buildable;
 import org.gradle.api.artifacts.PublishArtifact;
 import org.gradle.api.artifacts.PublishArtifactSet;
+import org.gradle.api.tasks.TaskDependency;
 
 /**
  * A wrapper for a {@PublishArtifactSet} that ensures that only a single artifact is
@@ -25,7 +27,7 @@ import org.gradle.api.artifacts.PublishArtifactSet;
  *
  * @author Andy Wilkinson
  */
-final class SinglePublishedArtifact {
+final class SinglePublishedArtifact implements Buildable {
 
 	private final PublishArtifactSet artifacts;
 
@@ -43,4 +45,9 @@ final class SinglePublishedArtifact {
 		}
 	}
 
+	@Override
+	public TaskDependency getBuildDependencies() {
+		return this.currentArtifact.getBuildDependencies();
+	}
+
 }

spring-boot-tools/spring-boot-gradle-plugin/src/main/java/org/springframework/boot/gradle/plugin/WarPluginAction.java

@@ -45,6 +45,7 @@ class WarPluginAction implements PluginApplicationAction {
 
 	@Override
 	public void execute(Project project) {
+		project.getTasks().getByName(WarPlugin.WAR_TASK_NAME).setEnabled(false);
 		BootWar bootWar = project.getTasks().create(SpringBootPlugin.BOOT_WAR_TASK_NAME,
 				BootWar.class);
 		bootWar.providedClasspath(providedRuntimeConfiguration(project));

spring-boot-tools/spring-boot-gradle-plugin/src/test/java/org/springframework/boot/gradle/docs/PackagingDocumentationTests.java

@@ -173,4 +173,17 @@ public class PackagingDocumentationTests {
 		}
 	}
 
+	@Test
+	public void bootJarAndJar() throws IOException {
+		this.gradleBuild.script("src/main/gradle/packaging/boot-jar-and-jar.gradle")
+				.build("assemble");
+		File jar = new File(this.gradleBuild.getProjectDir(),
+				"build/libs/" + this.gradleBuild.getProjectDir().getName() + ".jar");
+		assertThat(jar).isFile();
+		File bootJar = new File(this.gradleBuild.getProjectDir(),
+				"build/libs/" + this.gradleBuild.getProjectDir().getName() + "-boot.jar");
+		assertThat(bootJar).isFile();
+
+	}
+
 }

spring-boot-tools/spring-boot-gradle-plugin/src/test/java/org/springframework/boot/gradle/plugin/JavaPluginActionIntegrationTests.java

@@ -16,6 +16,10 @@
 
 package org.springframework.boot.gradle.plugin;
 
+import java.io.File;
+
+import org.gradle.testkit.runner.BuildResult;
+import org.gradle.testkit.runner.TaskOutcome;
 import org.junit.Rule;
 import org.junit.Test;
 
@@ -79,4 +83,23 @@ public class JavaPluginActionIntegrationTests {
 						.contains("compileTestJava = UTF-8");
 	}
 
+	@Test
+	public void assembleRunsBootJarAndJarIsSkipped() {
+		BuildResult result = this.gradleBuild.build("assemble");
+		assertThat(result.task(":bootJar").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
+		assertThat(result.task(":jar").getOutcome()).isEqualTo(TaskOutcome.SKIPPED);
+	}
+
+	@Test
+	public void jarAndBootJarCanBothBeBuilt() {
+		BuildResult result = this.gradleBuild.build("assemble");
+		assertThat(result.task(":bootJar").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
+		assertThat(result.task(":jar").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
+		File buildLibs = new File(this.gradleBuild.getProjectDir(), "build/libs");
+		assertThat(buildLibs.listFiles()).containsExactlyInAnyOrder(
+				new File(buildLibs, this.gradleBuild.getProjectDir().getName() + ".jar"),
+				new File(buildLibs,
+						this.gradleBuild.getProjectDir().getName() + "-boot.jar"));
+	}
+
 }

spring-boot-tools/spring-boot-gradle-plugin/src/test/java/org/springframework/boot/gradle/plugin/WarPluginActionIntegrationTests.java

@@ -16,6 +16,10 @@
 
 package org.springframework.boot.gradle.plugin;
 
+import java.io.File;
+
+import org.gradle.testkit.runner.BuildResult;
+import org.gradle.testkit.runner.TaskOutcome;
 import org.junit.Rule;
 import org.junit.Test;
 
@@ -59,4 +63,23 @@ public class WarPluginActionIntegrationTests {
 				.getOutput()).contains("bootWeb exists = true");
 	}
 
+	@Test
+	public void assembleRunsBootWarAndWarIsSkipped() {
+		BuildResult result = this.gradleBuild.build("assemble");
+		assertThat(result.task(":bootWar").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
+		assertThat(result.task(":war").getOutcome()).isEqualTo(TaskOutcome.SKIPPED);
+	}
+
+	@Test
+	public void warAndBootWarCanBothBeBuilt() {
+		BuildResult result = this.gradleBuild.build("assemble");
+		assertThat(result.task(":bootWar").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
+		assertThat(result.task(":war").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
+		File buildLibs = new File(this.gradleBuild.getProjectDir(), "build/libs");
+		assertThat(buildLibs.listFiles()).containsExactlyInAnyOrder(
+				new File(buildLibs, this.gradleBuild.getProjectDir().getName() + ".war"),
+				new File(buildLibs,
+						this.gradleBuild.getProjectDir().getName() + "-boot.war"));
+	}
+
 }

spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/plugin/JavaPluginActionIntegrationTests-assembleRunsBootJarAndJarIsSkipped.gradle

@@ -0,0 +1,12 @@
+buildscript {
+	dependencies {
+		classpath files(pluginClasspath.split(','))
+	}
+}
+
+apply plugin: 'org.springframework.boot'
+apply plugin: 'java'
+
+bootJar {
+	mainClass = 'com.example.Application'
+}

spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/plugin/JavaPluginActionIntegrationTests-jarAndBootJarCanBothBeBuilt.gradle

@@ -0,0 +1,17 @@
+buildscript {
+	dependencies {
+		classpath files(pluginClasspath.split(','))
+	}
+}
+
+apply plugin: 'org.springframework.boot'
+apply plugin: 'java'
+
+bootJar {
+	mainClass = 'com.example.Application'
+	classifier = 'boot'
+}
+
+jar {
+	enabled = true
+}

spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/plugin/WarPluginActionIntegrationTests-assembleRunsBootWarAndWarIsSkipped.gradle

@@ -0,0 +1,12 @@
+buildscript {
+	dependencies {
+		classpath files(pluginClasspath.split(','))
+	}
+}
+
+apply plugin: 'org.springframework.boot'
+apply plugin: 'war'
+
+bootWar {
+	mainClass = 'com.example.Application'
+}

spring-boot-tools/spring-boot-gradle-plugin/src/test/resources/org/springframework/boot/gradle/plugin/WarPluginActionIntegrationTests-warAndBootWarCanBothBeBuilt.gradle

@@ -0,0 +1,17 @@
+buildscript {
+	dependencies {
+		classpath files(pluginClasspath.split(','))
+	}
+}
+
+apply plugin: 'org.springframework.boot'
+apply plugin: 'war'
+
+bootWar {
+	mainClass = 'com.example.Application'
+	classifier = 'boot'
+}
+
+war {
+	enabled = true
+}