create paper-checkstyle plugin

gradle/libs.versions.toml

@@ -5,6 +5,8 @@ hypo = "1.2.4"
 serialize = "1.8.1"
 jst = "1.0.68+paper.2-SNAPSHOT"
 tinyRemapper = "0.11.1"
+# For paper-checkstyle plugin
+checkstyle = "10.21.0"
 
 [libraries]
 asm-core = { module = "org.ow2.asm:asm", version.ref = "asm" }
@@ -52,6 +54,9 @@ gradle-kotlin-dsl = "org.gradle.kotlin.kotlin-dsl:org.gradle.kotlin.kotlin-dsl.g
 gradle-plugin-kotlin = { module = "org.jetbrains.kotlin.jvm:org.jetbrains.kotlin.jvm.gradle.plugin" }
 gradle-plugin-publish = "com.gradle.publish:plugin-publish-plugin:1.3.1"
 
+# for renovate
+zCheckstyle = { module = "com.puppycrawl.tools:checkstyle", version.ref = "checkstyle" }
+
 [bundles]
 asm = ["asm-core", "asm-tree"]
 cadix = ["cadix-lorenz-core", "cadix-lorenz-asm", "cadix-lorenz-proguard", "cadix-atlas", "cadix-at"]

paperweight-core/build.gradle.kts

@@ -1,6 +1,7 @@
 plugins {
     `config-kotlin`
     `config-publish`
+    id("net.kyori.blossom") version "2.1.0"
 }
 
 dependencies {
@@ -27,3 +28,13 @@ gradlePlugin {
         implementationClass = "io.papermc.paperweight.patcher.PaperweightPatcher"
     }
 }
+
+sourceSets {
+    main {
+        blossom {
+            kotlinSources {
+                property("checkstyle_version", libs.versions.checkstyle)
+            }
+        }
+    }
+}

paperweight-core/src/main/kotlin-templates/io/papermc/paperweight/core/Versions.kt.peb

@@ -0,0 +1,27 @@
+/*
+ * paperweight is a Gradle plugin for the PaperMC project.
+ *
+ * Copyright (c) 2023 Kyle Wood (DenWav)
+ *                    Contributors
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 only, no later versions.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+ * USA
+ */
+
+package io.papermc.paperweight.core
+
+object Versions {
+    const val CHECKSTYLE: String = "{{ checkstyle_version }}"
+}

paperweight-core/src/main/kotlin/io/papermc/paperweight/checkstyle/JavadocTag.kt

@@ -0,0 +1,35 @@
+/*
+ * paperweight is a Gradle plugin for the PaperMC project.
+ *
+ * Copyright (c) 2023 Kyle Wood (DenWav)
+ *                    Contributors
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 only, no later versions.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+ * USA
+ */
+
+package io.papermc.paperweight.checkstyle
+
+data class JavadocTag(val tag: String, val appliesTo: String, val prefix: String) {
+    fun toOptionString(): String {
+        return "$tag:$appliesTo:$prefix"
+    }
+}
+
+fun PaperCheckstyleTask.setCustomJavadocTags(tags: Iterable<JavadocTag>) {
+    configProperties = (configProperties ?: emptyMap()).toMutableMap().apply {
+        this["custom_javadoc_tags"] = tags.joinToString("|") { it.toOptionString() }
+    }
+}

paperweight-core/src/main/kotlin/io/papermc/paperweight/checkstyle/PaperCheckstyle.kt

@@ -0,0 +1,49 @@
+/*
+ * paperweight is a Gradle plugin for the PaperMC project.
+ *
+ * Copyright (c) 2023 Kyle Wood (DenWav)
+ *                    Contributors
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 only, no later versions.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+ * USA
+ */
+
+package io.papermc.paperweight.checkstyle
+
+import io.papermc.paperweight.core.Versions
+import io.papermc.paperweight.util.constants.*
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.api.plugins.quality.CheckstyleExtension
+import org.gradle.kotlin.dsl.*
+
+abstract class PaperCheckstyle : Plugin<Project> {
+
+    override fun apply(target: Project) {
+        val ext = target.extensions.create(PAPER_CHECKSTYLE_EXTENSION, PaperCheckstyleExt::class)
+        target.plugins.apply(PaperCheckstylePlugin::class.java)
+
+        target.extensions.configure(CheckstyleExtension::class.java) {
+            toolVersion = Versions.CHECKSTYLE
+            configDirectory.set(ext.projectLocalCheckstyleConfig)
+        }
+
+        target.tasks.withType(PaperCheckstyleTask::class.java).configureEach {
+            rootPath.set(project.rootDir.path)
+            directoriesToSkip.set(ext.directoriesToSkip)
+            typeUseAnnotations.set(ext.typeUseAnnotations)
+        }
+    }
+}

paperweight-core/src/main/kotlin/io/papermc/paperweight/checkstyle/PaperCheckstyleExt.kt

@@ -0,0 +1,43 @@
+/*
+ * paperweight is a Gradle plugin for the PaperMC project.
+ *
+ * Copyright (c) 2023 Kyle Wood (DenWav)
+ *                    Contributors
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 only, no later versions.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+ * USA
+ */
+
+package io.papermc.paperweight.checkstyle
+
+import javax.inject.Inject
+import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.file.ProjectLayout
+import org.gradle.api.provider.SetProperty
+
+@Suppress("LeakingThis")
+abstract class PaperCheckstyleExt {
+
+    @get:Inject
+    abstract val layout: ProjectLayout
+
+    abstract val typeUseAnnotations: SetProperty<String>
+    abstract val directoriesToSkip: SetProperty<String>
+    abstract val projectLocalCheckstyleConfig: DirectoryProperty
+
+    init {
+        projectLocalCheckstyleConfig.convention(layout.projectDirectory.dir(".checkstyle"))
+    }
+}

paperweight-core/src/main/kotlin/io/papermc/paperweight/checkstyle/PaperCheckstylePlugin.kt

@@ -0,0 +1,34 @@
+/*
+ * paperweight is a Gradle plugin for the PaperMC project.
+ *
+ * Copyright (c) 2023 Kyle Wood (DenWav)
+ *                    Contributors
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 only, no later versions.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+ * USA
+ */
+
+package io.papermc.paperweight.checkstyle
+
+import org.gradle.api.plugins.quality.Checkstyle
+import org.gradle.api.plugins.quality.CheckstylePlugin
+
+abstract class PaperCheckstylePlugin : CheckstylePlugin() {
+
+    override fun getTaskType(): Class<Checkstyle> {
+        @Suppress("UNCHECKED_CAST")
+        return PaperCheckstyleTask::class.java as Class<Checkstyle>
+    }
+}

paperweight-core/src/main/kotlin/io/papermc/paperweight/checkstyle/PaperCheckstyleTask.kt

@@ -0,0 +1,60 @@
+/*
+ * paperweight is a Gradle plugin for the PaperMC project.
+ *
+ * Copyright (c) 2023 Kyle Wood (DenWav)
+ *                    Contributors
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 only, no later versions.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301
+ * USA
+ */
+
+package io.papermc.paperweight.checkstyle
+
+import java.nio.file.Paths
+import kotlin.io.path.invariantSeparatorsPathString
+import kotlin.io.path.relativeTo
+import org.gradle.api.plugins.quality.Checkstyle
+import org.gradle.api.provider.Property
+import org.gradle.api.provider.SetProperty
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.TaskAction
+
+abstract class PaperCheckstyleTask : Checkstyle() {
+
+    @get:Input
+    abstract val rootPath: Property<String>
+
+    @get:Input
+    abstract val directoriesToSkip: SetProperty<String>
+
+    @get:Input
+    abstract val typeUseAnnotations: SetProperty<String>
+
+    @TaskAction
+    override fun run() {
+        val existingProperties = configProperties?.toMutableMap() ?: mutableMapOf()
+        existingProperties["type_use_annotations"] = typeUseAnnotations.get().joinToString("|")
+        configProperties = existingProperties
+        exclude {
+            if (it.isDirectory) return@exclude false
+            val absPath = it.file.toPath().toAbsolutePath().relativeTo(Paths.get(rootPath.get()))
+            val parentPath = (absPath.parent?.invariantSeparatorsPathString + "/")
+            directoriesToSkip.get().any { pkg -> parentPath == pkg }
+        }
+        if (!source.isEmpty) {
+            super.run()
+        }
+    }
+}

paperweight-core/src/main/resources/META-INF/gradle-plugins/io.papermc.paperweight.paper-checkstyle.properties

@@ -0,0 +1 @@
+implementation-class=io.papermc.paperweight.checkstyle.PaperCheckstyle

paperweight-lib/src/main/kotlin/io/papermc/paperweight/util/constants/constants.kt

@@ -25,6 +25,7 @@ package io.papermc.paperweight.util.constants
 import org.gradle.api.Task
 
 const val PAPERWEIGHT_EXTENSION = "paperweight"
+const val PAPER_CHECKSTYLE_EXTENSION = "paperCheckstyle"
 const val PAPERWEIGHT_DEBUG = "paperweight.debug"
 fun paperweightDebug(): Boolean = System.getProperty(PAPERWEIGHT_DEBUG, "false") == "true"
 const val PAPERWEIGHT_VERBOSE_APPLY_PATCHES = "paperweight.verboseApplyPatches"