From 4780916cfd3473cbed5edb544dc47259413480e8 Mon Sep 17 00:00:00 2001
From: Slawomir Jaranowski <s.jaranowski@gmail.com>
Date: Fri, 14 Jun 2024 00:35:01 +0200
Subject: [PATCH] Build ITs in parallel

---
 pom.xml                                   | 17 +++++++++++++++++
 versions-enforcer/pom.xml                 |  6 ------
 versions-enforcer/src/it/settings.xml     |  4 ----
 versions-maven-plugin/pom.xml             |  6 ------
 versions-maven-plugin/src/it/settings.xml |  4 ----
 5 files changed, 17 insertions(+), 20 deletions(-)

diff --git a/pom.xml b/pom.xml
index 5be308c87d..e4625c3fea 100644
--- a/pom.xml
+++ b/pom.xml
@@ -132,6 +132,8 @@
     <modelloNamespaceReportVersion>2.0.0</modelloNamespaceReportVersion>
     <byteBuddyVersion>1.14.17</byteBuddyVersion>
     <scmpublish.content>${project.build.directory}/staging/versions</scmpublish.content>
+    <!-- execute ITS in parallel by default -->
+    <invoker.parallelThreads>0.75C</invoker.parallelThreads>
     <!-- mono-module doesn't require site:stage for scm-publish -->
     <project.build.outputTimestamp>2023-11-17T00:00:27Z</project.build.outputTimestamp>
   </properties>
@@ -393,4 +395,19 @@
       </plugin>
     </plugins>
   </reporting>
+
+  <profiles>
+    <profile>
+      <id>windows</id>
+      <activation>
+        <os>
+          <family>windows</family>
+        </os>
+      </activation>
+      <properties>
+        <!-- on windows there are some issues with parallel build -->
+        <invoker.parallelThreads>1</invoker.parallelThreads>
+      </properties>
+    </profile>
+  </profiles>
 </project>
diff --git a/versions-enforcer/pom.xml b/versions-enforcer/pom.xml
index 2bac0ac5c7..e38ecf1700 100644
--- a/versions-enforcer/pom.xml
+++ b/versions-enforcer/pom.xml
@@ -103,12 +103,6 @@
           <settingsFile>src/it/settings.xml</settingsFile>
           <showErrors>true</showErrors>
           <streamLogs>true</streamLogs>
-          <!--
-                      ! There seemed to be a problem with the indepance of the IT's
-                      ! here. So we can't use more than one thread.
-                      ! TODO: Dive more deeply into this problem.
-                    -->
-          <parallelThreads>1</parallelThreads>
           <pomIncludes>
             <pomInclude>*/pom.xml</pomInclude>
           </pomIncludes>
diff --git a/versions-enforcer/src/it/settings.xml b/versions-enforcer/src/it/settings.xml
index 21c5cbc266..2e20e722fd 100644
--- a/versions-enforcer/src/it/settings.xml
+++ b/versions-enforcer/src/it/settings.xml
@@ -21,12 +21,10 @@
           <releases>
             <enabled>true</enabled>
             <checksumPolicy>ignore</checksumPolicy>
-            <updatePolicy>never</updatePolicy>
           </releases>
           <snapshots>
             <enabled>true</enabled>
             <checksumPolicy>ignore</checksumPolicy>
-            <updatePolicy>always</updatePolicy>
           </snapshots>
         </repository>
       </repositories>
@@ -37,12 +35,10 @@
           <releases>
             <enabled>true</enabled>
             <checksumPolicy>ignore</checksumPolicy>
-            <updatePolicy>never</updatePolicy>
           </releases>
           <snapshots>
             <enabled>true</enabled>
             <checksumPolicy>ignore</checksumPolicy>
-            <updatePolicy>always</updatePolicy>
           </snapshots>
         </pluginRepository>
       </pluginRepositories>
diff --git a/versions-maven-plugin/pom.xml b/versions-maven-plugin/pom.xml
index 5b00874180..9d1f7509f9 100644
--- a/versions-maven-plugin/pom.xml
+++ b/versions-maven-plugin/pom.xml
@@ -172,12 +172,6 @@
           <settingsFile>src/it/settings.xml</settingsFile>
           <showErrors>true</showErrors>
           <streamLogs>true</streamLogs>
-          <!--
-            ! There seemed to be a problem with the indepance of the IT's
-            ! here. So we can't use more than one thread.
-            ! TODO: Dive more deeply into this problem.
-          -->
-          <parallelThreads>1</parallelThreads>
           <pomIncludes>
             <pomInclude>*/pom.xml</pomInclude>
           </pomIncludes>
diff --git a/versions-maven-plugin/src/it/settings.xml b/versions-maven-plugin/src/it/settings.xml
index 21c5cbc266..2e20e722fd 100644
--- a/versions-maven-plugin/src/it/settings.xml
+++ b/versions-maven-plugin/src/it/settings.xml
@@ -21,12 +21,10 @@
           <releases>
             <enabled>true</enabled>
             <checksumPolicy>ignore</checksumPolicy>
-            <updatePolicy>never</updatePolicy>
           </releases>
           <snapshots>
             <enabled>true</enabled>
             <checksumPolicy>ignore</checksumPolicy>
-            <updatePolicy>always</updatePolicy>
           </snapshots>
         </repository>
       </repositories>
@@ -37,12 +35,10 @@
           <releases>
             <enabled>true</enabled>
             <checksumPolicy>ignore</checksumPolicy>
-            <updatePolicy>never</updatePolicy>
           </releases>
           <snapshots>
             <enabled>true</enabled>
             <checksumPolicy>ignore</checksumPolicy>
-            <updatePolicy>always</updatePolicy>
           </snapshots>
         </pluginRepository>
       </pluginRepositories>