From 1d6ed501937886f8a7e9d916e86e12898b9a9e41 Mon Sep 17 00:00:00 2001
From: Tue Ton <49886739+chirontt@users.noreply.github.com>
Date: Sat, 23 Oct 2021 16:53:30 -0400
Subject: [PATCH] include LWJGL's manifest in the shaded uber jar

so that the LWJGL's build number is shown properly in debug output
of the shaded uber jar.
---
 pom.xml | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 59 insertions(+), 2 deletions(-)

diff --git a/pom.xml b/pom.xml
index 3925ce5b..a89bd59e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -172,6 +172,30 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>${maven-compiler-plugin.version}</version>
             </plugin>
+            <!-- extract the LWJGL manifest file -->
+            <plugin>
+                <artifactId>maven-dependency-plugin</artifactId>
+                <version>3.2.0</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>unpack</goal>
+                        </goals>
+                        <configuration>
+                            <artifactItems>
+                                <artifactItem>
+                                    <groupId>org.lwjgl</groupId>
+                                    <artifactId>lwjgl</artifactId>
+                                    <version>${lwjgl.version}</version>
+                                    <outputDirectory>${project.build.directory}/tmp</outputDirectory>
+                                    <includes>META-INF/MANIFEST.MF</includes>
+                                </artifactItem>
+                            </artifactItems>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <artifactId>maven-shade-plugin</artifactId>
                 <version>${maven-shade-plugin.version}</version>
@@ -194,9 +218,16 @@
                                 </filter>
                             </filters>
                             <transformers>
+                                <!-- exclude any other manifest files -->
                                 <transformer
-                                    implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
-                                    <mainClass>org.lwjgl.demo.${class}</mainClass>
+                                    implementation="org.apache.maven.plugins.shade.resource.DontIncludeResourceTransformer">
+                                    <resource>MANIFEST.MF</resource>
+                                </transformer>
+                                <!-- include the LWJGL manifest file in the resultant uber jar -->
+                                <transformer
+                                    implementation="org.apache.maven.plugins.shade.resource.IncludeResourceTransformer">
+                                    <resource>META-INF/MANIFEST.MF</resource>
+                                    <file>${project.build.directory}/tmp/META-INF/MANIFEST.MF</file>
                                 </transformer>
                             </transformers>
                             <finalName>lwjgl3-demos</finalName>
@@ -204,6 +235,32 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <artifactId>maven-antrun-plugin</artifactId>
+                <version>3.0.0</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>run</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <target>
+                        <!-- add extra attributes to the shaded uber jar's manifest -->
+                        <jar destfile="${project.build.directory}/lwjgl3-demos.jar"
+                             update="true">
+                            <manifest>
+                                <attribute name="Ant-Version" value="${ant.version}"/>
+                                <attribute name="Created-By" value="Apache Maven ${maven.version}"/>
+                                <attribute name="Build-Jdk" value="${java.version}"/>
+                                <attribute name="Main-Class" value="org.lwjgl.demo.${class}"/>
+                            </manifest>
+                        </jar>
+                    </target>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
     <repositories>