Add smoke tests.

Add release smoke-tests.

Closes #30

src/main/java/org/springframework/data/release/build/BuildOperations.java

@@ -148,6 +148,20 @@ public class BuildOperations {
 		logger.log(iteration, "Build finished");
 	}
 
+	/**
+	 * Run smoke tests for a {@link TrainIteration} against a {@link StagingRepository}.
+	 *
+	 * @param iteration
+	 * @param stagingRepository
+	 */
+	public void smokeTests(TrainIteration iteration, StagingRepository stagingRepository) {
+
+		doWithBuildSystem(iteration.getModule(BUILD), (buildSystem, moduleIteration) -> {
+			buildSystem.smokeTests(iteration, stagingRepository);
+			return null;
+		});
+	}
+
 	public void buildDocumentation(TrainIteration iteration) {
 
 		executor.doWithBuildSystemOrdered(Streamable.of(iteration.getModulesExcept(BOM, COMMONS, BUILD)),
@@ -184,6 +198,8 @@ public class BuildOperations {
 			orchestrator.close(stagingRepository);
 		}
 
+		smokeTests(iteration, stagingRepository);
+
 		logger.log(iteration, "Release: %s", summary);
 
 		return summary.getExecutions().stream().map(BuildExecutor.ExecutionResult::getResult).collect(Collectors.toList());

src/main/java/org/springframework/data/release/build/BuildSystem.java

@@ -22,6 +22,7 @@ import org.springframework.data.release.model.ModuleIteration;
 import org.springframework.data.release.model.Phase;
 import org.springframework.data.release.model.Project;
 import org.springframework.data.release.model.ProjectAware;
+import org.springframework.data.release.model.TrainIteration;
 import org.springframework.plugin.core.Plugin;
 
 /**
@@ -57,7 +58,6 @@ interface BuildSystem extends Plugin<Project> {
 	 */
 	<M extends ProjectAware> M triggerPreReleaseCheck(M module);
 
-
 	/**
 	 * Open a remote repository for staging artifacts.
 	 */
@@ -89,6 +89,14 @@ interface BuildSystem extends Plugin<Project> {
 	 */
 	DeploymentInformation deploy(ModuleIteration module);
 
+	/**
+	 * Run smoke test against a {@link StagingRepository}.
+	 *
+	 * @param iteration
+	 * @param stagingRepository
+	 */
+	void smokeTests(TrainIteration iteration, StagingRepository stagingRepository);
+
 	/**
 	 * Runs the distribution build.
 	 *

src/main/java/org/springframework/data/release/build/MavenBuildSystem.java

@@ -59,6 +59,7 @@ import org.springframework.data.release.model.Phase;
 import org.springframework.data.release.model.Project;
 import org.springframework.data.release.model.ProjectAware;
 import org.springframework.data.release.model.TrainIteration;
+import org.springframework.data.release.model.Version;
 import org.springframework.data.release.utils.Logger;
 import org.springframework.stereotype.Component;
 import org.springframework.util.Assert;
@@ -355,6 +356,37 @@ class MavenBuildSystem implements BuildSystem {
 		mvn.execute(module.getProject(), arguments);
 	}
 
+	@Override
+	public void smokeTests(TrainIteration iteration, StagingRepository stagingRepository) {
+
+		Assert.notNull(iteration, "Train iteration must not be null!");
+		Assert.notNull(stagingRepository, "StagingRepository iteration must not be null!");
+
+		logger.log(iteration, "🚬 Running smoke test…");
+
+		boolean mavenCentral = iteration.getIteration().isPublic();
+		String profile = mavenCentral ? "maven-central" : "artifactory";
+
+		ModuleIteration module = iteration.getModule(BUILD);
+
+		doWithProjection(workspace.getFile(POM_XML, SMOKE_TESTS), pom -> {
+
+			Version version = module.getVersion();
+			String targetBootVersion = version.getMajor() == 2 ? "2.7.8" : "3.0.2";
+
+			pom.setParentVersion(ArtifactVersion.of(Version.parse(targetBootVersion), true));
+		});
+
+		CommandLine arguments = CommandLine.of(Goal.CLEAN, VERIFY, //
+				profile(profile), //
+				arg("spring-data-bom.version").withValue(iteration.getReleaseTrainNameAndVersion())) //
+				.andIf(mavenCentral, arg("stagingRepository").withValue(stagingRepository.getId()));
+
+		mvn.execute(SMOKE_TESTS, arguments);
+
+		logger.log(iteration, "✅ Smoke tests passed. Do not smoke 🚭. It's unhealthy.");
+	}
+
 	@Override
 	public <M extends ProjectAware> M triggerDocumentationBuild(M module) {
 

src/main/java/org/springframework/data/release/build/MavenRuntime.java

@@ -129,7 +129,6 @@ public class MavenRuntime {
 				mavenLogger.info(String.format("Executing: mvn %s", arguments));
 
 				mvn.setGoals(arguments.toCommandLine(it -> properties.getFullyQualifiedPlugin(it.getGoal())));
-
 			});
 
 			if (result.getExitCode() != 0) {

src/main/java/org/springframework/data/release/cli/ReleaseCommands.java

@@ -223,6 +223,19 @@ class ReleaseCommands extends TimedCommand {
 		git.checkout(iteration);
 	}
 
+	/**
+	 * Triggers the smoke tests.
+	 *
+	 * @param iteration
+	 * @throws Exception
+	 */
+	@CliCommand(value = "release smoke-tests")
+	public void runSmokeTests(@CliOption(key = "", mandatory = true) TrainIteration iteration,
+			@CliOption(key = "stagingRepository", mandatory = false) String stagingRepository) throws Exception {
+		build.smokeTests(iteration,
+				stagingRepository != null ? StagingRepository.of(stagingRepository) : StagingRepository.EMPTY);
+	}
+
 	/**
 	 * Triggers the distribution of release artifacts for all projects.
 	 *

src/main/java/org/springframework/data/release/io/Workspace.java

@@ -43,6 +43,7 @@ import javax.annotation.PostConstruct;
 import org.springframework.core.io.Resource;
 import org.springframework.core.io.support.ResourcePatternResolver;
 import org.springframework.data.release.model.Project;
+import org.springframework.data.release.model.Projects;
 import org.springframework.data.release.utils.Logger;
 import org.springframework.stereotype.Component;
 import org.springframework.util.Assert;
@@ -151,6 +152,11 @@ public class Workspace {
 	public File getProjectDirectory(Project project) {
 
 		Assert.notNull(project, "Project must not be null!");
+
+		if (project == Projects.SMOKE_TESTS) {
+			return new File("smoke-tests");
+		}
+
 		return new File(getWorkingDirectory(), project.getFolderName());
 	}
 

src/main/java/org/springframework/data/release/model/ArtifactVersion.java

@@ -70,7 +70,11 @@ public class ArtifactVersion implements Comparable<ArtifactVersion> {
 	}
 
 	public static ArtifactVersion of(Version version) {
-		return new ArtifactVersion(version, false, RELEASE_SUFFIX);
+		return of(version, false);
+	}
+
+	public static ArtifactVersion of(Version version, boolean useModifierFormat) {
+		return new ArtifactVersion(version, useModifierFormat, RELEASE_SUFFIX);
 	}
 
 	/**

src/main/java/org/springframework/data/release/model/Projects.java

@@ -42,6 +42,7 @@ public class Projects {
 	public static final Project BOM, COMMONS, BUILD, REST, JDBC, RELATIONAL, JPA, MONGO_DB, NEO4J, SOLR, COUCHBASE,
 			CASSANDRA, ELASTICSEARCH, R2DBC, REDIS, KEY_VALUE, ENVERS, LDAP, GEODE;
 	public static final List<Project> PROJECTS;
+	public static final Project SMOKE_TESTS = new Project("SMOKE_TESTS", "Smoke Tests", Tracker.GITHUB);
 
 	static {