From 37f0172c59980de021ea235d3b29b6f1337bfcb0 Mon Sep 17 00:00:00 2001
From: volodya-lombrozo <volodya.lombrozo@gmail.com>
Date: Mon, 13 Jan 2025 12:00:18 +0300
Subject: [PATCH] feat(#946): try to add 'version' meta

---
 .../directives/DirectivesMetas.java           | 32 +++++++++++++------
 .../jeo/representation/xmir/JcabiXmlNode.java |  2 +-
 .../directives/DirectivesMetasTest.java       | 13 ++++++--
 3 files changed, 34 insertions(+), 13 deletions(-)

diff --git a/src/main/java/org/eolang/jeo/representation/directives/DirectivesMetas.java b/src/main/java/org/eolang/jeo/representation/directives/DirectivesMetas.java
index 536c28fc3..07a061a0e 100644
--- a/src/main/java/org/eolang/jeo/representation/directives/DirectivesMetas.java
+++ b/src/main/java/org/eolang/jeo/representation/directives/DirectivesMetas.java
@@ -23,6 +23,7 @@
  */
 package org.eolang.jeo.representation.directives;
 
+import com.jcabi.manifests.Manifests;
 import java.util.Iterator;
 import org.eolang.jeo.representation.ClassName;
 import org.eolang.jeo.representation.PrefixedName;
@@ -50,13 +51,12 @@ public DirectivesMetas(final ClassName classname) {
 
     @Override
     public Iterator<Directive> iterator() {
-        final Iterator<Directive> result;
-        if (this.name.pckg().isEmpty()) {
-            result = new Directives().iterator();
-        } else {
-            result = new Directives().add("metas").append(this.pckg()).up().iterator();
+        final Directives result = new Directives().add("metas");
+        result.append(this.version());
+        if (!this.name.pckg().isEmpty()) {
+            result.append(this.pckg());
         }
-        return result;
+        return result.up().iterator();
     }
 
     /**
@@ -76,9 +76,9 @@ ClassName className() {
     private Directives pckg() {
         final Directives result;
         final String original = this.name.pckg();
-        if (original.isEmpty()) {
-            result = new Directives();
-        } else {
+//        if (original.isEmpty()) {
+//            result = new Directives();
+//        } else {
             final String prefixed = new PrefixedName(original).encode();
             result = new Directives()
                 .add("meta")
@@ -86,7 +86,19 @@ private Directives pckg() {
                 .add("tail").set(prefixed).up()
                 .add("part").set(prefixed).up()
                 .up();
-        }
+//        }
         return result;
     }
+
+    /**
+     * The version directives of jeo-maven-plugin.
+     * @return Version directives.
+     */
+    private Directives version() {
+        return new Directives()
+            .add("meta")
+            .add("head").set("version").up()
+            .add("tail").set(Manifests.read("JEO-Version")).up()
+            .up();
+    }
 }
diff --git a/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java b/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java
index 061a7c27e..a74f17a26 100644
--- a/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java
+++ b/src/main/java/org/eolang/jeo/representation/xmir/JcabiXmlNode.java
@@ -160,7 +160,7 @@ public void validate() {
         final Collection<String> ignore = new HashSet<>(Arrays.asList(
             "mandatory-home",
             "name-outside-of-abstract-object",
-            "mandatory-version",
+//            "mandatory-version",
             "empty-object",
             "incorrect-package",
             "object-does-not-match-filename"
diff --git a/src/test/java/org/eolang/jeo/representation/directives/DirectivesMetasTest.java b/src/test/java/org/eolang/jeo/representation/directives/DirectivesMetasTest.java
index e840e99d2..c5795579a 100644
--- a/src/test/java/org/eolang/jeo/representation/directives/DirectivesMetasTest.java
+++ b/src/test/java/org/eolang/jeo/representation/directives/DirectivesMetasTest.java
@@ -79,8 +79,17 @@ void addsNothingExceptPackage() {
     void createsDirectivesWithEmptyPackage() {
         MatcherAssert.assertThat(
             "We expect that <metas>/<package> won't be created if package is empty",
-            new DirectivesMetas(new ClassName("WithoutPackage")),
-            Matchers.emptyIterable()
+            new Xembler(new DirectivesMetas(new ClassName("WithoutPackage"))).xmlQuietly(),
+            Matchers.not(XhtmlMatchers.hasXPath("/metas/meta[head[text()='package']]"))
+        );
+    }
+
+    @Test
+    void createsDirectivesWithVersion() {
+        MatcherAssert.assertThat(
+            "We expect that <metas>/<version> will be created",
+            new Xembler(new DirectivesMetas(new ClassName("WithVersion"))).xmlQuietly(),
+            XhtmlMatchers.hasXPath("/metas/meta[head[text()='version']]")
         );
     }
 }