Bael 7456 (#18419)

* BAEL-7456: Output the Version Number to a Text File using Maven

* BAEL-7456: Output the Version Number to a Text File using Maven

Author: achraftt

maven-modules/maven-version-number/README.md

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+### Relevant Articles: 
+

maven-modules/maven-version-number/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.example</groupId>
+    <artifactId>maven-version-number</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>maven-modules</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>${junit-jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>${junit-jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <!--
+    <build>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-resources-plugin</artifactId>
+                <version>${maven-resources-plugin.version}</version>
+            </plugin>
+        </plugins>
+    </build>
+    -->
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-antrun-plugin</artifactId>
+                <version>${maven-antrun-plugin.version}</version>
+                <executions>
+                    <execution>
+                        <id>generate-version-file</id>
+                        <phase>generate-resources</phase>
+                        <goals>
+                            <goal>run</goal>
+                        </goals>
+                        <configuration>
+                            <target>
+                                <echo file="${project.build.directory}/output/version.txt">
+                                    Version: ${project.version}
+                                </echo>
+                            </target>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <maven-antrun-plugin.version>3.0.0</maven-antrun-plugin.version>
+        <maven-resources-plugin.version>3.2.0</maven-resources-plugin.version>
+    </properties>
+</project>

maven-modules/maven-version-number/src/main/resources/version.txt

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+Version: ${project.version}

maven-modules/maven-version-number/src/test/java/com/baeldung/dependency/ordering/OutputVersionNumberUnitTest.java

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+package com.baeldung.dependency.ordering;
+
+class OutputVersionNumberUnitTest {
+
+    /*
+    @Test
+    void whenUsingResourcesPlugin_ThenGenerateVersionFile() {
+        File versionFile = new File("target/classes/version.txt");
+        assertTrue(versionFile.exists(), "Version file (Maven Resources Plugin) should exist in target/classes.");
+    }
+
+    @Test
+    void whenUsingAntrunPlugin_ThenGenerateVersionFile() {
+        File versionFile = new File("target/output/version.txt");
+        assertTrue(versionFile.exists(), "Version file should exist in target/generated.");
+    }
+    */
+
+}