Add explicit versions in the branches.json

Versions from branches.json are now used for calculating unreleased
versions for BwC tests.
Gradle task added to modify branches.json.
Possibility to add, remove and update branches in the file with
the version field added next to the branch.
BwC test configuration has been changed to use changed branches.json
file to calculate unreleased ES versions, instead of combining data
from Version.java and branches.json.

Author: jozala

branches.json

@@ -18,6 +18,8 @@
 
 public class VersionPropertiesPlugin implements Plugin<Project> {
 
+    public static final String VERSIONS_EXT = "versions";
+
     @Override
     public void apply(Project project) {
         File workspaceDir = Util.locateElasticsearchWorkspace(project.getGradle());
@@ -28,6 +30,6 @@ public void apply(Project project) {
                 .registerIfAbsent("versions", VersionPropertiesBuildService.class, spec -> {
             spec.getParameters().getInfoPath().set(infoPath);
         });
-        project.getExtensions().add("versions", serviceProvider.get().getProperties());
+        project.getExtensions().add(VERSIONS_EXT, serviceProvider.get().getProperties());
     }
 }

build-conventions/src/main/java/org/elasticsearch/gradle/internal/conventions/VersionPropertiesPlugin.java

@@ -26,6 +26,17 @@ abstract class AbstractGitAwareGradleFuncTest extends AbstractGradleFuncTest {
         execute("git clone ${remoteGitRepo.absolutePath} cloned", testProjectDir.root)
         buildFile = new File(testProjectDir.root, 'cloned/build.gradle')
         settingsFile = new File(testProjectDir.root, 'cloned/settings.gradle')
+        versionPropertiesFile = new File(testProjectDir.root, 'cloned/build-tools-internal/version.properties')
+        versionPropertiesFile.text = """
+            elasticsearch     = 9.1.0
+            lucene            = 10.2.2
+
+            bundled_jdk_vendor = openjdk
+            bundled_jdk = 24+36@1f9ff9062db4449d8ca828c504ffae90
+            minimumJdkVersion = 21
+            minimumRuntimeJava = 21
+            minimumCompilerJava = 21
+        """
     }
 
     File setupGitRemote() {

build-tools-internal/src/integTest/groovy/org/elasticsearch/gradle/fixtures/AbstractGitAwareGradleFuncTest.groovy

@@ -51,23 +51,23 @@ class InternalDistributionBwcSetupPluginFuncTest extends AbstractGitAwareGradleF
         assertOutputContains(result.output, "[$bwcDistVersion] > Task :distribution:archives:darwin-tar:${expectedAssembleTaskName}")
 
         where:
-        bwcDistVersion | bwcProject    | expectedAssembleTaskName
-        "8.4.0"        | "minor"       | "extractedAssemble"
-        "8.3.0"        | "staged"      | "extractedAssemble"
-        "8.2.1"        | "bugfix"      | "extractedAssemble"
-        "8.1.3"        | "bugfix2"     | "extractedAssemble"
+        bwcDistVersion | bwcProject | expectedAssembleTaskName
+        "8.4.0"        | "major1"   | "extractedAssemble"
+        "8.3.0"        | "major2"   | "extractedAssemble"
+        "8.2.1"        | "major3"   | "extractedAssemble"
+        "8.1.3"        | "major4"   | "extractedAssemble"
     }
 
     @Unroll
     def "supports #platform aarch distributions"() {
         when:
-        def result = gradleRunner(":distribution:bwc:minor:buildBwc${platform.capitalize()}Aarch64Tar",
+        def result = gradleRunner(":distribution:bwc:major1:buildBwc${platform.capitalize()}Aarch64Tar",
                 "-DtestRemoteRepo=" + remoteGitRepo,
                 "-Dbwc.remote=origin",
                 "-Dbwc.dist.version=${bwcDistVersion}-SNAPSHOT")
                 .build()
         then:
-        result.task(":distribution:bwc:minor:buildBwc${platform.capitalize()}Aarch64Tar").outcome == TaskOutcome.SUCCESS
+        result.task(":distribution:bwc:major1:buildBwc${platform.capitalize()}Aarch64Tar").outcome == TaskOutcome.SUCCESS
 
         and: "assemble tasks triggered"
         assertOutputContains(result.output, "[$bwcDistVersion] > Task :distribution:archives:${platform}-aarch64-tar:extractedAssemble")
@@ -87,7 +87,7 @@ class InternalDistributionBwcSetupPluginFuncTest extends AbstractGitAwareGradleF
         }
 
         dependencies {
-            expandedDist project(path: ":distribution:bwc:minor", configuration:"expanded-darwin-tar")
+            expandedDist project(path: ":distribution:bwc:major1", configuration:"expanded-darwin-tar")
         }
 
         tasks.register("resolveExpandedDistribution") {
@@ -109,12 +109,12 @@ class InternalDistributionBwcSetupPluginFuncTest extends AbstractGitAwareGradleF
                 .build()
         then:
         result.task(":resolveExpandedDistribution").outcome == TaskOutcome.SUCCESS
-        result.task(":distribution:bwc:minor:buildBwcDarwinTar").outcome == TaskOutcome.SUCCESS
+        result.task(":distribution:bwc:major1:buildBwcDarwinTar").outcome == TaskOutcome.SUCCESS
         and: "assemble task triggered"
         result.output.contains("[8.4.0] > Task :distribution:archives:darwin-tar:extractedAssemble")
-        result.output.contains("expandedRootPath /distribution/bwc/minor/build/bwc/checkout-8.x/" +
+        result.output.contains("expandedRootPath /distribution/bwc/major1/build/bwc/checkout-8.x/" +
                         "distribution/archives/darwin-tar/build/install")
-        result.output.contains("nested folder /distribution/bwc/minor/build/bwc/checkout-8.x/" +
+        result.output.contains("nested folder /distribution/bwc/major1/build/bwc/checkout-8.x/" +
                         "distribution/archives/darwin-tar/build/install/elasticsearch-8.4.0-SNAPSHOT")
     }
 

build-tools-internal/src/integTest/groovy/org/elasticsearch/gradle/internal/InternalDistributionBwcSetupPluginFuncTest.groovy

@@ -51,7 +51,7 @@ class InternalDistributionDownloadPluginFuncTest extends AbstractGradleFuncTest
     def "resolves expanded bwc versions from source"() {
         given:
         internalBuild()
-        bwcMinorProjectSetup()
+        bwcMajor1ProjectSetup()
         buildFile << """
             apply plugin: 'elasticsearch.internal-distribution-download'
 
@@ -72,16 +72,16 @@ class InternalDistributionDownloadPluginFuncTest extends AbstractGradleFuncTest
 
         def result = gradleRunner("setupDistro").build()
         then:
-        result.task(":distribution:bwc:minor:buildBwcExpandedTask").outcome == TaskOutcome.SUCCESS
+        result.task(":distribution:bwc:major1:buildBwcExpandedTask").outcome == TaskOutcome.SUCCESS
         result.task(":setupDistro").outcome == TaskOutcome.SUCCESS
-        assertExtractedDistroIsCreated("distribution/bwc/minor/build/install/elastic-distro",
+        assertExtractedDistroIsCreated("distribution/bwc/major1/build/install/elastic-distro",
                 'bwc-marker.txt')
     }
 
     def "fails on resolving bwc versions with no bundled jdk"() {
         given:
         internalBuild()
-        bwcMinorProjectSetup()
+        bwcMajor1ProjectSetup()
         buildFile << """
             apply plugin: 'elasticsearch.internal-distribution-download'
 
@@ -105,12 +105,12 @@ class InternalDistributionDownloadPluginFuncTest extends AbstractGradleFuncTest
                 "without a bundled JDK is not supported.")
     }
 
-    private void bwcMinorProjectSetup() {
+    private void bwcMajor1ProjectSetup() {
         settingsFile << """
-        include ':distribution:bwc:minor'
+        include ':distribution:bwc:major1'
         """
-        def bwcSubProjectFolder = testProjectDir.newFolder("distribution", "bwc", "minor")
-        new File(bwcSubProjectFolder, 'bwc-marker.txt') << "bwc=minor"
+        def bwcSubProjectFolder = testProjectDir.newFolder("distribution", "bwc", "major1")
+        new File(bwcSubProjectFolder, 'bwc-marker.txt') << "bwc=major1"
         new File(bwcSubProjectFolder, 'build.gradle') << """
             apply plugin:'base'
 

build-tools-internal/src/integTest/groovy/org/elasticsearch/gradle/internal/InternalDistributionDownloadPluginFuncTest.groovy

@@ -40,7 +40,7 @@ class LegacyYamlRestCompatTestPluginFuncTest extends AbstractRestResourcesFuncTe
         given:
         internalBuild()
 
-        subProject(":distribution:bwc:minor") << """
+        subProject(":distribution:bwc:major1") << """
         configurations { checkout }
         artifacts {
             checkout(new File(projectDir, "checkoutDir"))
@@ -61,11 +61,11 @@ class LegacyYamlRestCompatTestPluginFuncTest extends AbstractRestResourcesFuncTe
         result.task(transformTask).outcome == TaskOutcome.NO_SOURCE
     }
 
-    def "yamlRestCompatTest executes and copies api and transforms tests from :bwc:minor"() {
+    def "yamlRestCompatTest executes and copies api and transforms tests from :bwc:major1"() {
         given:
         internalBuild()
 
-        subProject(":distribution:bwc:minor") << """
+        subProject(":distribution:bwc:major1") << """
         configurations { checkout }
         artifacts {
             checkout(new File(projectDir, "checkoutDir"))
@@ -98,8 +98,8 @@ class LegacyYamlRestCompatTestPluginFuncTest extends AbstractRestResourcesFuncTe
         String api = "foo.json"
         String test = "10_basic.yml"
         //add the compatible test and api files, these are the prior version's normal yaml rest tests
-        file("distribution/bwc/minor/checkoutDir/rest-api-spec/src/main/resources/rest-api-spec/api/" + api) << ""
-        file("distribution/bwc/minor/checkoutDir/src/yamlRestTest/resources/rest-api-spec/test/" + test) << ""
+        file("distribution/bwc/major1/checkoutDir/rest-api-spec/src/main/resources/rest-api-spec/api/" + api) << ""
+        file("distribution/bwc/major1/checkoutDir/src/yamlRestTest/resources/rest-api-spec/test/" + test) << ""
 
         when:
         def result = gradleRunner("yamlRestCompatTest").build()
@@ -145,7 +145,7 @@ class LegacyYamlRestCompatTestPluginFuncTest extends AbstractRestResourcesFuncTe
         given:
         internalBuild()
         withVersionCatalogue()
-        subProject(":distribution:bwc:minor") << """
+        subProject(":distribution:bwc:major1") << """
         configurations { checkout }
         artifacts {
             checkout(new File(projectDir, "checkoutDir"))
@@ -186,7 +186,7 @@ class LegacyYamlRestCompatTestPluginFuncTest extends AbstractRestResourcesFuncTe
         given:
         internalBuild()
 
-        subProject(":distribution:bwc:minor") << """
+        subProject(":distribution:bwc:major1") << """
         configurations { checkout }
         artifacts {
             checkout(new File(projectDir, "checkoutDir"))
@@ -230,7 +230,7 @@ class LegacyYamlRestCompatTestPluginFuncTest extends AbstractRestResourcesFuncTe
 
         setupRestResources([], [])
 
-        file("distribution/bwc/minor/checkoutDir/src/yamlRestTest/resources/rest-api-spec/test/test.yml" ) << """
+        file("distribution/bwc/major1/checkoutDir/src/yamlRestTest/resources/rest-api-spec/test/test.yml" ) << """
         "one":
           - do:
               do_.some.key_to_replace: