From 39971536f3a5e19d6aa47ce640dbeb954eae02db Mon Sep 17 00:00:00 2001
From: MikhailLipanin <mikhail.lipanin@gmail.com>
Date: Tue, 29 Nov 2022 00:47:41 +0300
Subject: [PATCH] automatic project version and EO version

---
 pom.xml                                   |  6 +++++
 src/main/java/org/eolang/dejump/Main.java | 27 ++++++++++++++++++++---
 2 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/pom.xml b/pom.xml
index a58f749..c7a1d87 100644
--- a/pom.xml
+++ b/pom.xml
@@ -131,6 +131,11 @@ SOFTWARE.
       <artifactId>picocli</artifactId>
       <version>4.7.0</version>
     </dependency>
+    <dependency>
+      <groupId>com.jcabi</groupId>
+      <artifactId>jcabi-manifests</artifactId>
+      <!-- version from parent POM -->
+    </dependency>
   </dependencies>
   <build>
     <plugins>
@@ -197,6 +202,7 @@ SOFTWARE.
           <archive>
             <manifestEntries>
               <Main-Class>org.eolang.dejump.Main</Main-Class>
+              <Dejump-Version>${project.version}</Dejump-Version>
             </manifestEntries>
           </archive>
           <descriptorRefs>
diff --git a/src/main/java/org/eolang/dejump/Main.java b/src/main/java/org/eolang/dejump/Main.java
index 283f63a..41f6434 100644
--- a/src/main/java/org/eolang/dejump/Main.java
+++ b/src/main/java/org/eolang/dejump/Main.java
@@ -23,6 +23,7 @@
  */
 package org.eolang.dejump;
 
+import com.jcabi.manifests.Manifests;
 import java.io.File;
 import java.io.IOException;
 import java.util.concurrent.Callable;
@@ -34,10 +35,12 @@
  * @since 0.0.1
  * @checkstyle ClassDataAbstractionCouplingCheck (500 lines)
  */
-@CommandLine.Command(name = "dejump",
+@CommandLine.Command(
+    name = "dejump",
     mixinStandardHelpOptions = true,
-    version = "Version 0.0.1",
-    description = "Replaces objects GOTO with semantically equivalent")
+    description = "Replaces objects GOTO with semantically equivalent",
+    versionProvider = Main.Version.class
+)
 public final class Main implements Callable<Integer> {
 
     /**
@@ -68,4 +71,22 @@ public Integer call() throws IOException {
     public static void main(final String[] args) {
         new CommandLine(new Main()).execute(args);
     }
+
+    /**
+     * Version.
+     * @since 0.0.2
+     */
+    static final class Version implements CommandLine.IVersionProvider {
+        @Override
+        public String[] getVersion() {
+            return new String[]{
+                String.format(
+                    "Dejump version is %s\nEO version is %s",
+                    Manifests.read("Dejump-Version"),
+                    Manifests.read("EO-Version")
+                ),
+            };
+        }
+    }
+
 }