Enhance released jars (#7651)

This change adds a couple of manifest attributes to jars, if the `release` Gradle project property is present.

The attributes are:
* `Nessie-Build-Git-Describe`: result of `git describe` - example: `nessie-0.72.2-4-g0ce4208995`
* `Nessie-Build-Git-Head`: Git HEAD commit ID
* `Nessie-Build-Java-Version`: Java version used for the build - example: `21.0.1`
* `Nessie-Build-System`: result of `uname -a`
* `Nessie-Build-Timestamp`: result of `date +%Y-%m-%d-%H:%M:%S%:z` - example: `2023-10-20-12:01:33+02:00`
* `Nessie-Version`: version as in `version.txt`, example: `0.72.3-SNAPSHOT`

Those attributes are _not_ added for non-release builds, because manifest attribtues count towards Gradle inputs, potentially rendering cached Gradle outputs unusable - i.e. every change could cause a full rebuild.

build-logic/src/main/kotlin/nessie-common-src.gradle.kts

@@ -14,6 +14,8 @@
  * limitations under the License.
  */
 
+import java.io.ByteArrayOutputStream
+import java.nio.charset.StandardCharsets
 import java.util.Properties
 import net.ltgt.gradle.errorprone.CheckSeverity
 import net.ltgt.gradle.errorprone.errorprone
@@ -141,3 +143,61 @@ plugins.withType<JavaPlugin>().configureEach {
     }
   }
 }
+
+// Adds Git/Build/System related information to the generated jars, if the `release` project
+// property is present. Do not add that information in development builds, so that the
+// generated jars are still cachable for Gradle.
+if (project.hasProperty("release")) {
+  tasks.withType<Jar>().configureEach {
+    manifest { MemoizedGitInfo.gitInfo(rootProject, attributes) }
+  }
+}
+
+class MemoizedGitInfo {
+  companion object {
+    private fun execProc(rootProject: Project, cmd: String, vararg args: Any): String {
+      val buf = ByteArrayOutputStream()
+      rootProject.exec {
+        executable = cmd
+        args(args.toList())
+        standardOutput = buf
+      }
+      return buf.toString(StandardCharsets.UTF_8).trim()
+    }
+
+    fun gitInfo(rootProject: Project, attribs: Attributes) {
+      val props = gitInfo(rootProject)
+      attribs.putAll(props)
+    }
+
+    fun gitInfo(rootProject: Project): Map<String, String> {
+      if (!rootProject.hasProperty("release")) {
+        return emptyMap()
+      }
+
+      return if (rootProject.extra.has("gitReleaseInfo")) {
+        @Suppress("UNCHECKED_CAST")
+        rootProject.extra["gitReleaseInfo"] as Map<String, String>
+      } else {
+        val gitHead = execProc(rootProject, "git", "rev-parse", "HEAD")
+        val gitDescribe = execProc(rootProject, "git", "describe")
+        val timestamp = execProc(rootProject, "date", "+%Y-%m-%d-%H:%M:%S%:z")
+        val system = execProc(rootProject, "uname", "-a")
+        val javaVersion = System.getProperty("java.version")
+
+        val info =
+          mapOf(
+            "Nessie-Version" to
+              rootProject.layout.projectDirectory.file("version.txt").asFile.readText(),
+            "Nessie-Build-Git-Head" to gitHead,
+            "Nessie-Build-Git-Describe" to gitDescribe,
+            "Nessie-Build-Timestamp" to timestamp,
+            "Nessie-Build-System" to system,
+            "Nessie-Build-Java-Version" to javaVersion
+          )
+        rootProject.extra["gitReleaseInfo"] = info
+        return info
+      }
+    }
+  }
+}

servers/quarkus-cli/build.gradle.kts

@@ -110,7 +110,22 @@ tasks.withType<ProcessResources>().configureEach {
 
 val packageType = quarkusPackageType()
 
-quarkus { quarkusBuildProperties.put("quarkus.package.type", packageType) }
+quarkus {
+  quarkusBuildProperties.put("quarkus.package.type", packageType)
+  // Pull manifest attributes from the "main" `jar` task to get the
+  // release-information into the jars generated by Quarkus.
+  quarkusBuildProperties.putAll(
+    provider {
+      tasks
+        .named("jar", Jar::class.java)
+        .get()
+        .manifest
+        .attributes
+        .map { e -> "quarkus.package.manifest.attributes.\"${e.key}\"" to e.value.toString() }
+        .toMap()
+    }
+  )
+}
 
 if (quarkusFatJar()) {
   afterEvaluate {

servers/quarkus-server/build.gradle.kts

@@ -147,6 +147,19 @@ quarkus {
   )
   quarkusBuildProperties.put("quarkus.smallrye-openapi.info-version", project.version.toString())
   quarkusBuildProperties.put("quarkus.smallrye-openapi.auto-add-security", "false")
+  // Pull manifest attributes from the "main" `jar` task to get the
+  // release-information into the jars generated by Quarkus.
+  quarkusBuildProperties.putAll(
+    provider {
+      tasks
+        .named("jar", Jar::class.java)
+        .get()
+        .manifest
+        .attributes
+        .map { e -> "quarkus.package.manifest.attributes.\"${e.key}\"" to e.value.toString() }
+        .toMap()
+    }
+  )
 }
 
 val quarkusAppPartsBuild = tasks.named("quarkusAppPartsBuild")