Explicitly set line endings to avoid using git at configuration time

Author: jjohannes

build.gradle.kts

@@ -7,7 +7,13 @@ plugins {
 version = "0.7"
 
 dependencies {
-    implementation("com.diffplug.spotless:spotless-plugin-gradle:8.0.0")
+    implementation("com.diffplug.spotless:spotless-plugin-gradle:8.0.0") {
+        // Exclude transitive dependencies of JGit as we do not need git functionality.
+        // We can't exclude JGit itself as types are referenced in SpotlessTask.class.
+        exclude("com.googlecode.javaewah", "JavaEWAH")
+        exclude("commons-codec", "commons-codec")
+        exclude("org.slf4j", "slf4j-api")
+    }
     implementation("com.gradle.publish:plugin-publish-plugin:2.0.0")
     implementation("com.gradle:common-custom-user-data-gradle-plugin:2.4.0")
     implementation("com.gradle:develocity-gradle-plugin:4.2.2")

src/main/java/org/gradlex/conventions/check/SpotlessConventionsPlugin.java

@@ -18,6 +18,7 @@
 
 import com.diffplug.gradle.spotless.SpotlessExtension;
 import com.diffplug.gradle.spotless.SpotlessPlugin;
+import com.diffplug.spotless.LineEnding;
 import org.gradle.api.Plugin;
 import org.gradle.api.Project;
 import org.gradlex.conventions.base.LifecycleConventionsPlugin;
@@ -40,21 +41,23 @@ public void apply(Project project) {
         tasks.named("qualityCheck", task -> task.dependsOn(tasks.named("spotlessCheck")));
         tasks.named("qualityGate", task -> task.dependsOn(tasks.named("spotlessApply")));
 
+        spotless.setLineEndings(LineEnding.UNIX);
+
         // format the source code
         spotless.java(java -> {
             java.targetExclude("build/**");
             java.palantirJavaFormat();
             java.licenseHeader("// SPDX-License-Identifier: Apache-2.0\n", "package|import");
         });
+        // separate 'package-info' formatting due to https://github.com/diffplug/spotless/issues/532
         spotless.format("javaPackageInfoFiles", java -> {
-            java.targetExclude("build/**");
-            // add a separate extension due to https://github.com/diffplug/spotless/issues/532
+            java.targetExclude("build");
             java.target("src/**/package-info.java");
-
             java.licenseHeader("// SPDX-License-Identifier: Apache-2.0\n", "package|import|@");
         });
 
         // format the build itself
-        spotless.kotlinGradle(gradle -> gradle.ktfmt().kotlinlangStyle().configure(conf -> conf.setMaxWidth(120)));
+        spotless.kotlinGradle(gradle ->
+                gradle.ktfmt().kotlinlangStyle().configure(conf -> conf.setMaxWidth(120)));
     }
 }