Replace shipkit-auto-version by custom version plugin (#9228)

* chore: Replace shipkit-auto-version by custom version plugin

# Conflicts:
#	build.gradle

* chore: Tracer version increments patch when on "release/v* branch

* chore: Tracer version detects dirtiness on local builds, not on CI

* chore: Tracer version plugin tests

* chore: Make the property ignore buildSrc test only, not integration tests

* chore: Apply PR suggestions from code review

* chore: Suggestions from code review

* chore: Don't declare the assertj library in the main catalog just yet

Author: bric3

build.gradle.kts

@@ -8,7 +8,7 @@ plugins {
   id("com.github.spotbugs") version "5.0.14"
   id("de.thetaphi.forbiddenapis") version "3.8"
 
-  id("org.shipkit.shipkit-auto-version") version "2.1.2"
+  id("tracer-version")
   id("io.github.gradle-nexus.publish-plugin") version "2.0.0"
 
   id("com.gradleup.shadow") version "8.3.6" apply false
@@ -56,11 +56,8 @@ apply(from = rootDir.resolve("gradle/spotless.gradle"))
 
 val compileTask = tasks.register("compile")
 
-val repoVersion = version
-
 allprojects {
   group = "com.datadoghq"
-  version = repoVersion
 
   if (isCI.isPresent) {
     layout.buildDirectory = providers.provider {

buildSrc/build.gradle.kts

@@ -2,6 +2,7 @@ plugins {
   groovy
   `java-gradle-plugin`
   `kotlin-dsl`
+  `jvm-test-suite`
   id("com.diffplug.spotless") version "6.13.0"
 }
 
@@ -25,6 +26,10 @@ gradlePlugin {
       id = "call-site-instrumentation"
       implementationClass = "datadog.gradle.plugin.CallSiteInstrumentationPlugin"
     }
+    create("tracer-version-plugin") {
+      id = "tracer-version"
+      implementationClass = "datadog.gradle.plugin.version.TracerVersionPlugin"
+    }
   }
 }
 
@@ -42,19 +47,46 @@ dependencies {
   implementation("org.eclipse.aether", "aether-transport-http", "1.1.0")
   implementation("org.apache.maven", "maven-aether-provider", "3.3.9")
 
+  implementation("com.github.zafarkhaja:java-semver:0.10.2")
+
   implementation("com.google.guava", "guava", "20.0")
   implementation("org.ow2.asm", "asm", "9.8")
   implementation("org.ow2.asm", "asm-tree", "9.8")
-
-  testImplementation(libs.spock.core)
-  testImplementation(libs.groovy)
 }
 
 tasks.compileKotlin {
   dependsOn(":call-site-instrumentation-plugin:build")
 }
 
-tasks.test {
-  useJUnitPlatform()
-  enabled = project.hasProperty("runBuildSrcTests")
+testing {
+  @Suppress("UnstableApiUsage")
+  suites {
+    val test by getting(JvmTestSuite::class) {
+      dependencies {
+        implementation(libs.spock.core)
+        implementation(libs.groovy)
+      }
+      targets.configureEach {
+        testTask.configure {
+          enabled = project.hasProperty("runBuildSrcTests")
+        }
+      }
+    }
+
+    val integTest by registering(JvmTestSuite::class) {
+      dependencies {
+        implementation(gradleTestKit())
+        implementation("org.assertj:assertj-core:3.25.3")
+      }
+      // Makes the gradle plugin publish its declared plugins to this source set
+      gradlePlugin.testSourceSet(sources)
+    }
+
+    withType(JvmTestSuite::class).configureEach {
+      useJUnitJupiter(libs.versions.junit5)
+      targets.configureEach {
+        testTask
+      }
+    }
+  }
 }