Add configuration to send build scans to https://ge.apache.org (#810)

* Add configuration to send build scans to https://ge.apache.org

* Add `.mvn` directories to IT tests projects that lack one

Some of the integration tests to do not have `.mvn` directories and
search up the project structure until they find the `.mvn` directory
of the root project.

This change adds `.mvn` directories with empty `maven.config` files so
that the sample projects in VCS will be as close as possible to those
executed during integration testing

.gitignore

@@ -29,3 +29,6 @@ nb-configuration.xml
 
 # formatter-maven-plugin
 .cache/
+
+# https://ge.apache.org
+.mvn/.gradle-enterprise

.mvn/extensions.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<extensions>
+    <extension>
+        <groupId>com.gradle</groupId>
+        <artifactId>gradle-enterprise-maven-extension</artifactId>
+        <version>1.17.3</version>
+    </extension>
+    <extension>
+        <groupId>com.gradle</groupId>
+        <artifactId>common-custom-user-data-maven-extension</artifactId>
+        <version>1.12</version>
+    </extension>
+</extensions>

.mvn/gradle-enterprise.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+
+<gradleEnterprise
+    xmlns="https://www.gradle.com/gradle-enterprise-maven" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="https://www.gradle.com/gradle-enterprise-maven https://www.gradle.com/schema/gradle-enterprise-maven.xsd">
+  <server>
+    <url>https://ge.apache.org</url>
+  </server>
+  <buildScan>
+    <capture>
+      <goalInputFiles>true</goalInputFiles>
+    </capture>
+    <obfuscation>
+      <ipAddresses>0.0.0.0</ipAddresses>
+    </obfuscation>
+    <publish>ALWAYS</publish>
+    <publishIfAuthenticated>true</publishIfAuthenticated>
+    <backgroundBuildScanUpload>#{isFalse(env['GITHUB_ACTIONS'])}</backgroundBuildScanUpload>
+  </buildScan>
+  <buildCache>
+    <local>
+      <enabled>#{isFalse(env['GITHUB_ACTIONS'])}</enabled>
+    </local>
+    <remote>
+      <enabled>false</enabled>
+    </remote>
+  </buildCache>
+</gradleEnterprise>

integration-tests/src/test/java/org/mvndaemon/mvnd/junit/MvndTestExtension.java

@@ -204,6 +204,11 @@ public class MvndTestExtension implements BeforeAllCallback, BeforeEachCallback,
                         }
                     });
                 }
+
+                final Path dotMvn = testExecutionDir.resolve(".mvn");
+                if (!Files.exists(dotMvn)) {
+                    Files.createDirectories(dotMvn);
+                }
             }
             final Path multiModuleProjectDirectory =
                     Paths.get(DaemonParameters.findDefaultMultimoduleProjectDirectory(testExecutionDir));