Add version information.

build.gradle

@@ -2,13 +2,11 @@ buildscript {
     repositories {
         gradlePluginPortal()
     }
-    dependencies {
-        classpath 'org.ajoberstar.grgit:grgit-gradle:4.1.0'
-        classpath 'org.ajoberstar:gradle-git-publish:3.0.0'
-    }
 }
 
 plugins {
+    id 'org.ajoberstar.grgit' version '5.2.0'
+    id 'org.ajoberstar.git-publish' version '4.2.0'
     id 'pl.allegro.tech.build.axion-release' version '1.15.0' apply false
     id 'org.jdrupes.vmoperator.java-doc-conventions'
     id 'eclipse'

buildSrc/src/org.jdrupes.vmoperator.java-common-conventions.gradle

@@ -13,6 +13,9 @@ plugins {
     
     // Apply eclipse plugin
     id 'eclipse'
+    
+    // Access to git information
+    id 'org.ajoberstar.grgit'
 }
 
 repositories {
@@ -66,6 +69,22 @@ scmVersion {
 version = scmVersion.version
 ext.isSnapshot = version.endsWith('-SNAPSHOT')
 
+jar {
+    manifest {
+        inputs.property("gitDescriptor", { grgit.describe(always: true) })
+        
+        // Set Git revision information in the manifests of built bundles
+        attributes([
+            "Implementation-Title": project.name,
+            "Implementation-Version": "$project.version (${grgit.describe(always: true)})",
+            "Implementation-Vendor": grgit.repository.jgit.repository.config.getString("user", null, "name")
+                + " (" + grgit.repository.jgit.repository.config.getString("user", null, "email") + ")",
+            "Git-Descriptor": grgit.describe(always: true),
+            "Git-SHA": grgit.head().id,
+        ])
+    }
+}
+
 eclipse {
 
     project {

org.jdrupes.vmoperator.manager/src/org/jdrupes/vmoperator/manager/Operator.java

@@ -23,6 +23,8 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.nio.file.Files;
 import java.util.logging.LogManager;
+import java.util.logging.Logger;
+
 import org.apache.commons.cli.CommandLine;
 import org.apache.commons.cli.CommandLineParser;
 import org.apache.commons.cli.DefaultParser;
@@ -106,6 +108,9 @@ public class Operator extends Component {
      */
     @SuppressWarnings("PMD.SignatureDeclareThrowsException")
     public static void main(String[] args) throws Exception {
+        Logger.getLogger(Operator.class.getName())
+            .fine(() -> "Version: "
+                + Operator.class.getPackage().getImplementationVersion());
         CommandLineParser parser = new DefaultParser();
         // parse the command line arguments
         final Options options = new Options();