From 3371b1c990658f18fbf1f1e9b172a1748df37a0b Mon Sep 17 00:00:00 2001
From: Nicolas Pepin-Perreault <nicolas.pepin-perreault@camunda.com>
Date: Wed, 9 Feb 2022 10:48:12 +0100
Subject: [PATCH] build: flatten deployed POM

Adds flatten-maven-plugin to the build pipeline. This will generate a
flattened POM, which removes any POM hierarchy, substitutes all
properties, removes non compile dependencies, and more. This solves
issues when it comes to dependency management for consumers of this
project by greatly reducing how much they have to care when it comes to
dependency convergence.
---
 pom.xml | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/pom.xml b/pom.xml
index 6fc04300..cb362885 100644
--- a/pom.xml
+++ b/pom.xml
@@ -82,6 +82,7 @@
 
     <!-- maven extensions -->
     <extension.version.os-maven-plugin>1.6.1</extension.version.os-maven-plugin>
+    <plugin.version.flatten>1.2.2</plugin.version.flatten>
   </properties>
 
   <dependencyManagement>
@@ -465,6 +466,36 @@
           </execution>
         </executions>
       </plugin>
+
+      <!--
+        generate a simplified POM; this is very useful for projects consuming
+        zeebe-test-container, as it will simplify dependency convergence for these projects
+      -->
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>flatten-maven-plugin</artifactId>
+        <version>${plugin.version.flatten}</version>
+        <configuration>
+          <flattenMode>ossrh</flattenMode>
+          <outputDirectory>${project.build.directory}</outputDirectory>
+        </configuration>
+        <executions>
+          <execution>
+            <id>flatten</id>
+            <goals>
+              <goal>flatten</goal>
+            </goals>
+            <phase>process-resources</phase>
+          </execution>
+          <execution>
+            <id>flatten.clean</id>
+            <goals>
+              <goal>clean</goal>
+            </goals>
+            <phase>clean</phase>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>