From 3454a5304ed840a23ae2433850ce22b63caae875 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Brais=20Gab=C3=ADn?= <braisgabin@gmail.com>
Date: Sun, 7 Aug 2022 21:42:20 +0200
Subject: [PATCH] Always execute DetektGenerateConfigTask in serial

---
 .../gitlab/arturbosch/detekt/DetektGenerateConfigTask.kt  | 5 +++++
 .../kotlin/io/gitlab/arturbosch/detekt/DetektPlugin.kt    | 8 ++++++++
 2 files changed, 13 insertions(+)

diff --git a/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/DetektGenerateConfigTask.kt b/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/DetektGenerateConfigTask.kt
index 14046810e8b..f220abba3ea 100644
--- a/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/DetektGenerateConfigTask.kt
+++ b/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/DetektGenerateConfigTask.kt
@@ -9,6 +9,8 @@ import io.gitlab.arturbosch.detekt.invoke.GenerateConfigArgument
 import org.gradle.api.DefaultTask
 import org.gradle.api.file.ConfigurableFileCollection
 import org.gradle.api.provider.Provider
+import org.gradle.api.services.BuildService
+import org.gradle.api.services.BuildServiceParameters
 import org.gradle.api.tasks.CacheableTask
 import org.gradle.api.tasks.Classpath
 import org.gradle.api.tasks.InputFiles
@@ -72,4 +74,7 @@ abstract class DetektGenerateConfigTask : DefaultTask() {
             taskName = name,
         )
     }
+
+    @Suppress("UnnecessaryAbstractClass")
+    abstract class SingleExecutionBuildService : BuildService<BuildServiceParameters.None>
 }
diff --git a/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/DetektPlugin.kt b/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/DetektPlugin.kt
index 38f02436b12..43760179081 100644
--- a/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/DetektPlugin.kt
+++ b/detekt-gradle-plugin/src/main/kotlin/io/gitlab/arturbosch/detekt/DetektPlugin.kt
@@ -60,8 +60,16 @@ class DetektPlugin : Plugin<Project> {
     }
 
     private fun Project.registerGenerateConfigTask(extension: DetektExtension) {
+        val detektGenerateConfigSingleExecution = project.gradle.sharedServices.registerIfAbsent(
+            "DetektGenerateConfigSingleExecution",
+            DetektGenerateConfigTask.SingleExecutionBuildService::class.java
+        ) { spec ->
+            spec.maxParallelUsages.set(1)
+        }
+
         tasks.register(GENERATE_CONFIG, DetektGenerateConfigTask::class.java) {
             it.config.setFrom(project.provider { extension.config })
+            it.usesService(detektGenerateConfigSingleExecution)
         }
     }