Create Sagan versions for R2DBC from Spring Data Relational.

Closes #207

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

@@ -39,7 +39,8 @@
  */
 public class Projects {
 
-	public static final Project BOM, COMMONS, BUILD, REST, JDBC, JPA, MONGO_DB, NEO4J, SOLR, COUCHBASE, CASSANDRA,
+	public static final Project BOM, COMMONS, BUILD, REST, JDBC, RELATIONAL, JPA, MONGO_DB, NEO4J, SOLR, COUCHBASE,
+			CASSANDRA,
 			ELASTICSEARCH, R2DBC, REDIS, GEMFIRE, KEY_VALUE, ENVERS, LDAP, GEODE;
 	public static final List<Project> PROJECTS;
 
@@ -82,8 +83,13 @@ public class Projects {
 
 		REDIS = new Project("DATAREDIS", "Redis", Tracker.GITHUB).withDependencies(KEY_VALUE);
 
-		JDBC = new Project("DATAJDBC", "JDBC", Tracker.GITHUB)
-				.withAdditionalArtifacts(ArtifactCoordinates.SPRING_DATA.artifacts("spring-data-relational"))
+		JDBC = new Project("DATAJDBC", "Relational", Tracker.GITHUB)
+				.withAdditionalArtifacts(
+						ArtifactCoordinates.SPRING_DATA.artifacts("spring-data-relational", "spring-data-jdbc"))
+				.withDependencies(COMMONS);
+
+		RELATIONAL = new Project("DATAJDBC", "Relational", Tracker.GITHUB).withAdditionalArtifacts(
+				ArtifactCoordinates.SPRING_DATA.artifacts("spring-data-relational", "spring-data-jdbc", "spring-data-r2dbc"))
 				.withDependencies(COMMONS);
 
 		R2DBC = new Project("DATAR2DBC", "R2DBC", Tracker.GITHUB).withDependencies(COMMONS, JDBC);
@@ -109,7 +115,8 @@ public class Projects {
 		LDAP = new Project("DATALDAP", "LDAP", Tracker.GITHUB).withDependencies(COMMONS);
 
 		// Specify build order to avoid maven dependency errors during build.
-		List<Project> projects = Arrays.asList(BUILD, COMMONS, JPA, JDBC, MONGO_DB, NEO4J, SOLR, COUCHBASE, CASSANDRA,
+		List<Project> projects = Arrays.asList(BUILD, COMMONS, JPA, JDBC, RELATIONAL, MONGO_DB, NEO4J, SOLR, COUCHBASE,
+				CASSANDRA,
 				ELASTICSEARCH, REDIS, GEMFIRE, REST, KEY_VALUE, ENVERS, LDAP, GEODE, R2DBC);
 
 		DefaultDirectedGraph<Project, DefaultEdge> graph = new DefaultDirectedGraph<>(DefaultEdge.class);

release-tools/src/main/java/org/springframework/data/release/model/ReleaseTrains.java

@@ -75,9 +75,11 @@ public class ReleaseTrains {
 				.withIterations(new Train.Iterations(M1, M2, M3, M4, M5, RC1, RC2, GA, SR1, SR2, SR3, SR4, SR5));
 
 		TURING = PASCAL.next("Turing", Transition.MAJOR, //
-				new Module(R2DBC, "3.0")) //
+				new Module(RELATIONAL, "3.0")) //
 				.withCalver("2022.0") //
 				.filterModules(module -> !module.getProject().equals(ENVERS))
+				.filterModules(module -> !module.getProject().equals(R2DBC))
+				.filterModules(module -> !module.getProject().equals(JDBC)) // filter "old" JDBC without R2DBC submodule
 				.withAlwaysUseBranch(true)
 				.withIterations(new Train.Iterations(M1, M2, M3, M4, M5, RC1, RC2, GA, SR1, SR2, SR3, SR4, SR5));
 

release-tools/src/main/java/org/springframework/data/release/sagan/MaintainedVersion.java

@@ -16,6 +16,7 @@
 package org.springframework.data.release.sagan;
 
 import lombok.Value;
+import lombok.With;
 
 import java.time.LocalDate;
 import java.util.Comparator;
@@ -37,7 +38,7 @@
 @Value(staticConstructor = "of")
 class MaintainedVersion implements Comparable<MaintainedVersion> {
 
-	Project project;
+	@With Project project;
 	ArtifactVersion version;
 	Train train;
 	@Nullable LocalDate releaseDate;

release-tools/src/main/java/org/springframework/data/release/sagan/SaganCommands.java

@@ -19,12 +19,15 @@
 import lombok.RequiredArgsConstructor;
 import lombok.experimental.FieldDefaults;
 
+import java.util.List;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
 import org.springframework.data.release.CliComponent;
 import org.springframework.data.release.TimedCommand;
+import org.springframework.data.release.git.GitOperations;
 import org.springframework.data.release.model.ReleaseTrains;
+import org.springframework.data.release.model.Train;
 import org.springframework.shell.core.annotation.CliCommand;
 import org.springframework.shell.core.annotation.CliOption;
 import org.springframework.stereotype.Component;
@@ -42,12 +45,18 @@
 class SaganCommands extends TimedCommand {
 
 	SaganOperations sagan;
+	GitOperations git;
 
 	@CliCommand("sagan update")
-	public void updateProjectInformation(@CliOption(key = "", mandatory = true) String trains) {
+	public void updateProjectInformation(@CliOption(key = "", mandatory = true) String trainNames) {
 
-		sagan.updateProjectMetadata(Stream.of(trains.split(","))//
+		List<Train> trains = Stream.of(trainNames.split(","))//
 				.map(ReleaseTrains::getTrainByName) //
-				.collect(Collectors.toList()));
+				.collect(Collectors.toList());
+
+		// ensure we have all git repositories available
+		trains.forEach(git::checkout);
+
+		sagan.updateProjectMetadata(trains);
 	}
 }

release-tools/src/main/java/org/springframework/data/release/sagan/SaganOperations.java

@@ -20,6 +20,7 @@
 import lombok.experimental.FieldDefaults;
 
 import java.time.LocalDate;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
@@ -76,15 +77,14 @@ void updateProjectMetadata(List<Train> trains) {
 
 		Map<Project, MaintainedVersions> versions = findVersions(trains);
 
-		ExecutionUtils.run(executor, Streamable.of(versions.entrySet()),
-				entry -> {
+		ExecutionUtils.run(executor, Streamable.of(versions.entrySet()), entry -> {
 
-					if (entry.getKey() == Projects.BOM) {
-						return;
-					}
+			if (entry.getKey() == Projects.BOM) {
+				return;
+			}
 
-					client.updateProjectMetadata(entry.getKey(), entry.getValue());
-				});
+			client.updateProjectMetadata(entry.getKey(), entry.getValue());
+		});
 	}
 
 	/**
@@ -104,13 +104,66 @@ Map<Project, MaintainedVersions> findVersions(List<Train> trains) {
 
 		Assert.notNull(trains, "Trains must not be null!");
 
-		return ExecutionUtils.runAndReturn(executor, Streamable.of(trains), train -> {
+		Map<Project, MaintainedVersions> versions = ExecutionUtils.runAndReturn(executor, Streamable.of(trains), train -> {
 			return ExecutionUtils.runAndReturn(executor,
 					Streamable.of(() -> train.stream().filter(module -> !TO_FILTER.contains(module.getProject()))), module -> {
 						return getLatestVersion(module, train);
 					});
 		}).stream().flatMap(Collection::stream).flatMap(Collection::stream).collect(
 				Collectors.groupingBy(MaintainedVersion::getProject, ListWrapperCollector.collectInto(MaintainedVersions::of)));
+
+		// Migration because of the R2DBC merge into Spring Data Relational and project rename to Relational
+		versions.put(Projects.R2DBC, MaintainedVersions.of(getR2dbcVersions(versions)));
+		versions.put(Projects.RELATIONAL, MaintainedVersions.of(getRelationalVersions(versions)));
+
+		versions.remove(Projects.JDBC);
+
+		return versions;
+	}
+
+	/**
+	 * Copy Relational versions into R2DBC as we feed two projects (JDBC, R2DBC) from {@link Projects#RELATIONAL}.
+	 *
+	 * @param versions
+	 * @return
+	 */
+	private List<MaintainedVersion> getR2dbcVersions(Map<Project, MaintainedVersions> versions) {
+
+		List<MaintainedVersion> r2dbcVersions = new ArrayList<>(
+				versions.getOrDefault(Projects.R2DBC, MaintainedVersions.of()).toList());
+
+		MaintainedVersions relationalVersions = versions.get(Projects.RELATIONAL);
+
+		for (MaintainedVersion relationalVersion : relationalVersions) {
+			if (relationalVersion.getVersion().getVersion().getMajor() >= 3) {
+				r2dbcVersions.add(relationalVersion.withProject(Projects.R2DBC));
+			}
+		}
+		return r2dbcVersions;
+	}
+
+	/**
+	 * Merge JDBC versions into Relational to avoid having two projects mapping to Spring Data JDBC in Sagan.
+	 *
+	 * @param versions
+	 * @return
+	 */
+	private List<MaintainedVersion> getRelationalVersions(Map<Project, MaintainedVersions> versions) {
+
+		List<MaintainedVersion> relationalVersions = new ArrayList<>(
+				versions.getOrDefault(Projects.RELATIONAL, MaintainedVersions.of()).toList());
+
+		if (versions.containsKey(Projects.JDBC)) {
+
+			MaintainedVersions jdbcVersions = versions.get(Projects.JDBC);
+
+			for (MaintainedVersion jdbcVersion : jdbcVersions) {
+				if (jdbcVersion.getVersion().getVersion().getMajor() < 3) {
+					relationalVersions.add(jdbcVersion.withProject(Projects.RELATIONAL));
+				}
+			}
+		}
+		return relationalVersions;
 	}
 
 	private List<MaintainedVersion> getLatestVersion(Module module, Train train) {

release-tools/src/main/java/org/springframework/data/release/sagan/SaganProperties.java

@@ -95,6 +95,15 @@ URI getProjectMetadataResource(MaintainedVersion version) {
 	}
 
 	private static String getProjectPathSegment(Project project) {
-		return Projects.BUILD.equals(project) ? "spring-data" : project.getFolderName();
+
+		if (Projects.BUILD.equals(project)) {
+			return "spring-data";
+		}
+
+		if (Projects.RELATIONAL.equals(project) || Projects.JDBC.equals(project)) {
+			return "spring-data-jdbc";
+		}
+
+		return project.getFolderName();
 	}
 }