Rewrite: Plugin creates Version-class

build.gradle.kts

@@ -13,9 +13,14 @@ group = "net.keinekekse"
 version = masterLibs.versions.versionPluginVersion.get()
 description = "Adds version information to the project."
 extra["displayname"] = "Version-Plugin"
-extra["copyright"] = "Copyright (c) 2024-2025 Hartmut Bauer"
+extra["copyright"] = "Copyright (c) 2024-2026 Hartmut Bauer"
 extra["buildTimestamp"] = Instant.now().toString()
 
+dependencies {
+    implementation(masterLibs.semver)
+    compileOnly(masterLibs.kotlinGradlePlugin)
+}
+
 publishing {
     repositories {
         maven {

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

gradlew

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# Copyright © 2015-2021 the original authors.
+# Copyright © 2015 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,6 +15,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
 #
@@ -55,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -84,7 +86,7 @@ done
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
 # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -112,7 +114,6 @@ case "$( uname )" in                #(
   NONSTOP* )        nonstop=true ;;
 esac
 
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
 
 # Determine the Java command to use to start the JVM.
@@ -170,7 +171,6 @@ fi
 # For Cygwin or MSYS, switch paths to Windows format before running java
 if "$cygwin" || "$msys" ; then
     APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
-    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
 
     JAVACMD=$( cygpath --unix "$JAVACMD" )
 
@@ -203,15 +203,14 @@ fi
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Collect all arguments for the java command:
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
 #     and any embedded shellness will be escaped.
 #   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
 #     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
-        -classpath "$CLASSPATH" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
-        org.gradle.wrapper.GradleWrapperMain \
         "$@"
 
 # Stop when "xargs" is not available.

gradlew.bat

@@ -13,6 +13,8 @@
 @rem See the License for the specific language governing permissions and
 @rem limitations under the License.
 @rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
 
 @if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
@@ -68,11 +70,10 @@ goto fail
 :execute
 @rem Setup the command line
 
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
 
 :end
 @rem End local scope for the variables with windows NT shell

settings.gradle.kts

@@ -7,7 +7,7 @@ dependencyResolutionManagement {
 
     versionCatalogs {
         create("masterLibs") {
-            from("net.keinekekse:version-catalog:56")
+            from("net.keinekekse:version-catalog:104")
         }
     }
 }

src/main/kotlin/net/keinekekse/version/AddVersionTask.kt

@@ -1,12 +1,134 @@
 package net.keinekekse.version
 
-import org.gradle.api.tasks.Copy
+import io.github.z4kn4fein.semver.Version
-import org.gradle.api.tasks.TaskAction
+import io.github.z4kn4fein.semver.withoutSuffixes
+import org.gradle.api.DefaultTask
+import org.gradle.api.file.ConfigurableFileCollection
+import org.gradle.api.file.RegularFileProperty
+import org.gradle.api.provider.Property
+import org.gradle.api.tasks.*
+import java.util.*
 
-abstract class AddVersionTask : Copy() {
+abstract class AddVersionTask : DefaultTask() {
+
+    // 1. Define what triggers the task (Source Files)
+    @get:InputFiles
+    @get:PathSensitive(PathSensitivity.RELATIVE)
+    abstract val sourceFiles: ConfigurableFileCollection
+
+    // 2. Define the output (The properties file)
+    @get:OutputFile
+    abstract val buildNumberFile: RegularFileProperty
+
+    @get:OutputFile
+    abstract val versionClassFile: RegularFileProperty
+
+    @get:Input
+    abstract val projectVersion: Property<String>
+
+    @get:Input
+    abstract val projectName: Property<String>
+
+    @get:Input
+    abstract val projectDescription: Property<String>
+
+    @get:Input
+    abstract val displayNameExtra: Property<String>
+
+    @get:Input
+    abstract val copyrightExtra: Property<String>
+
+    @get:Input
+    abstract val versionPackageName: Property<String>
 
     @TaskAction
-    fun updateVersion() {
+    fun execute() {
-        // action is defined in plugin
+        println("execute task: incrementBuildNumber")
+        val buildNumber = incrementAndGetBuildNumber()
+        writeClassFile(buildNumber)
     }
+
+    private fun writeClassFile(buildNumber: String) {
+        val ver = getVersionInfo(buildNumber)
+
+        val file = versionClassFile.get().asFile
+        file.parentFile.mkdirs()
+        file.writeText(
+            """
+                package ${versionPackageName.get()}
+                
+                object VERSION {
+                    const val version = "${ver.version}"
+                    const val fullVersion = "${ver.fullVersion}"
+                    const val major = ${ver.major}
+                    const val minor = ${ver.minor}
+                    const val patch = ${ver.patch}
+                    const val preRelease = "${ver.preRelease}"
+                    const val buildMetadata = "${ver.buildMetadata}"
+                    const val buildDate = "${ver.buildDate}"
+                    const val displayName = "${ver.displayName}"
+                    const val copyright = "${ver.copyright}"
+                    const val name = "${ver.name}"
+                    const val description = "${ver.description}"
+                }
+            """.trimIndent()
+        )
+
+    }
+
+    private fun getVersionInfo(buildNumber: String): VersionInfo {
+        val version =
+            if (Version.parse(projectVersion.get(), strict = false).buildMetadata.isNullOrEmpty())
+                Version.parse(projectVersion.get() + "+build.$buildNumber", strict = false)
+            else Version.parse(projectVersion.get(), strict = false)
+
+        println("Source files changed. Setting version to $version")
+
+        return VersionInfo(
+            major = version.major,
+            minor = version.minor,
+            patch = version.patch,
+            preRelease = version.preRelease ?: "",
+            buildMetadata = version.buildMetadata ?: "",
+            fullVersion = version.toString(),
+            version = if (version.isPreRelease) version.toString() else
+                version.withoutSuffixes().toString(),
+            buildDate = java.time.Instant.now().toString(),
+            displayName = displayNameExtra.get(),
+            copyright = copyrightExtra.get(),
+            name = projectName.get(),
+            description = projectDescription.get() ?: ""
+        )
+    }
+
+    private fun incrementAndGetBuildNumber(): String {
+        val file = buildNumberFile.get().asFile
+        val props = Properties()
+        if (file.exists()) {
+            file.inputStream().use { props.load(it) }
+        }
+        val current = props.getProperty("build.number")?.toLongOrNull() ?: 0
+        val actual = (current + 1).toString()
+        props.setProperty("build.number", actual)
+        file.outputStream().use {
+            props.store(it, "auto generated")
+        }
+        return actual
+    }
+
+    data class VersionInfo(
+        val version: String,
+        val fullVersion: String,
+        val major: Int,
+        val minor: Int,
+        val patch: Int,
+        val preRelease: String,
+        val buildMetadata: String,
+        val buildDate: String,
+        val displayName: String,
+        val copyright: String,
+        val name: String,
+        val description: String,
+    )
+
 }

src/main/kotlin/net/keinekekse/version/VersionPlugin.kt

@@ -1,131 +1,143 @@
 package net.keinekekse.version
 
+import org.gradle.api.InvalidUserDataException
 import org.gradle.api.Plugin
 import org.gradle.api.Project
-import org.gradle.api.file.RegularFile
+import org.gradle.api.tasks.SourceSetContainer
-import org.gradle.api.java.archives.Manifest
+import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
-import org.gradle.api.tasks.bundling.Jar
-import org.gradle.api.tasks.bundling.War
-import org.gradle.kotlin.dsl.extra
-import org.gradle.kotlin.dsl.named
-import java.io.FileInputStream
-import java.io.FileOutputStream
-import java.time.Instant
-import java.util.*
 
+/**
+ * Versions-Resource im Projekt anlegen und bei jedem Build eine Build-Nummer hochzählen
+ *
+ * Ohne weitere Konfiguration wird die Datei Version.kt mit der class VERSION im Verzeichnis
+ * src/main/kotlin/<project.group>/<project.name> erzeugt, für KMP in src/commonMain/kotlin.
+ * Die class wird mit Daten aus build.gradle.kts befüllt (s.u.).
+ *
+ * Für die Build-Nummer wird eine Datei buildnumber.properties im Projektverzeichnis erzeugt.
+ *
+ * Die class-Datei und der Package-Name können ggf. in build.gradle.kts konfiguriert werden:
+ *
+ * ```
+ *  plugins {
+ *      // Plugin einbinden
+ *      id("net.keinekekse.version") version "3.0.0"
+ *  }
+ *
+ * // Werte, die für die Version-Datei verwendet werden
+ * //   in settings.gradle.kt: rootProject.name = "program-name"
+ *  group = "org.example"
+ *  version = "0.0.1-beta.1"
+ *  description = "Program description"
+ *  extra["displayname"] = "Program"
+ *  extra["copyright"] = "Copyright (c) 2025 Hartmut Bauer"
+ *
+ *
+ *  // Optional: Konfiguration der Version-Datei und des Packages
+ *  versionConfig {
+ *      versionClassFile.set(layout.projectDirectory.file("src/main/kotlin/Version.kt"))
+ *      versionPackageName.set("net.keinekekse")
+ *  }
+ * ```
+ *
+ * VERSION-class:
+ *
+ * ```
+ * object VERSION {
+ *     const val version = "1.0.0-beta.1+build.13" // für Release-Ver: major.minor.patch
+ *     const val fullVersion = "1.0.0-beta.1+build.13"
+ *     const val major = 1
+ *     const val minor = 0
+ *     const val patch = 0
+ *     const val preRelease = "beta.1"
+ *     const val buildMetadata = "build.13"
+ *     const val buildDate = "2026-01-10T18:54:42.227942Z"
+ *     const val displayName = "Program"
+ *     const val copyright = "Copyright (c) 2026 Hartmut Bauer"
+ *     const val name = "program-name"
+ *     const val description = "Program description"
+ * }
+ * ```
+ *
+ *
+ */
 class VersionPlugin : Plugin<Project> {
-    private var isWar = false
-
-    companion object {
-        private const val BUILDNUMBER_FILE = "buildnumber.properties"
-        private const val BUILD_NUMBER_KEY = "build.number"
-        private const val GENERATED_COMMENT = "auto generated"
-    }
 
     override fun apply(project: Project) {
-        validateNoSubprojects(project)
+        val extension =
+            project.extensions.create("versionConfig", VersionPluginExtension::class.java)
 
-        project.afterEvaluate {
+        val versionTask =
-            val projectInfo = ProjectInfo(
+            project.tasks.register("incrementBuildNumber", AddVersionTask::class.java) {
-                version = project.version.toString(),
+                if (!extension.versionClassFile.isPresent) {
-                displayName = getOptionalExtra(project, "displayname"),
+                    val packageName =
-                copyright = getOptionalExtra(project, "copyright"),
+                        project.group.toString().replace("-", ".") +
-                name = project.name,
+                                "." + project.name.replace("-", ".")
-                description = project.description ?: ""
+                    val versionFileName = packageName.replace(".", "/") + "/Version.kt"
-            )
 
-            isWar = isWarProject(project)
+                    var targ = "src/main/kotlin/"
-            if (isWar) {
+                    if (!project.layout.projectDirectory.file(targ).asFile.exists()) {
-                addManifestTask(project, "war", projectInfo)
+                        targ = "src/commonMain/kotlin/"
-            } else {
+                        if (!project.layout.projectDirectory.file(targ).asFile.exists()) {
-                addManifestTask(project, "jar", projectInfo)
+                            throw InvalidUserDataException(
-            }
+                                "Version-Plugin: 'versionClassFile' and 'versionPackageName' must " +
-        }
+                                        "be set in a versionConfig-block in build.gradle.kts, " +
-    }
+                                        "as both 'src/main/kotlin' and 'src/commonMain/kotlin' do not exist!"
-
+                            )
-    private fun validateNoSubprojects(project: Project) {
+                        }
-        if (project.parent != null) {
-            throw Exception("This plugin cannot handle subprojects!")
-        }
-    }
-
-    private fun isWarProject(project: Project): Boolean {
-        return project.layout.projectDirectory.file("src/main/webapp/WEB-INF").asFile.exists()
-    }
-
-    private fun getOptionalExtra(project: Project, key: String): String {
-        return try {
-            project.extra[key]?.toString() ?: ""
-        } catch (e: Exception) {
-            ""
-        }
-    }
-
-    private fun addManifestTask(project: Project, taskType: String, projectInfo: ProjectInfo) {
-        val countFile = project.layout.projectDirectory.file(BUILDNUMBER_FILE)
-
-        if (taskType == "war") {
-            try {
-                project.tasks.named<War>(taskType) {
-                    doFirst {
-                        applyManifestAttributes(manifest, countFile, projectInfo)
                     }
+                    extension.versionClassFile.convention(project.layout.projectDirectory.file(targ + versionFileName))
+                    extension.versionPackageName.convention(packageName)
                 }
-            } catch (e: Exception) {
+
-                println("\n*** Falsche Reihenfolge ***\n\nwar-Plugin muss vor dem Versions-Plugin eingetragen werden!\n")
+                // Point to the source sets
-                throw e
+                val files = project.files(
+                    "src/main/kotlin", "src/main/java",
+                    "src/commonMain/kotlin", "src/commonMain/java",
+                    "src/jvmMain/kotlin", "src/jvmMain/java"
+                )
+                // Filter lazily using a provider
+                sourceFiles.from(extension.versionClassFile.map { classFile ->
+                    files.asFileTree.filter { it.name != classFile.asFile.name }
+                })
+
+                // Point to the properties file
+                buildNumberFile.set(project.layout.projectDirectory.file("buildnumber.properties"))
+
+                // Link properties directly (this is lazy)
+                versionClassFile.set(extension.versionClassFile)
+                versionPackageName.set(extension.versionPackageName)
+
+                projectVersion.set(project.provider { project.version.toString() })
+                projectName.set(project.provider { project.name })
+                projectDescription.set(project.provider { project.description ?: "" })
+
+                displayNameExtra.set(project.provider {
+                    project.extensions.extraProperties.let {
+                        if (it.has("displayname")) it.get("displayname")?.toString() else ""
+                    }
+                })
+                copyrightExtra.set(project.provider {
+                    project.extensions.extraProperties.let {
+                        if (it.has("copyright")) it.get("copyright")?.toString() else ""
+                    }
+                })
             }
-        } else if (taskType == "jar") {
+
-            project.tasks.named<Jar>(taskType) {
+        // 1. Handle Kotlin/JVM (Standard Project)
-                doFirst {
+        project.plugins.withId("org.jetbrains.kotlin.jvm") {
-                    applyManifestAttributes(manifest, countFile, projectInfo)
+            project.extensions.getByType(SourceSetContainer::class.java).named("main") {
-                }
+                // This tells Gradle that this source set includes the directory containing the generated file
+                this.java.srcDir(versionTask.map { it.versionClassFile.get().asFile.parentFile })
             }
         }
-    }
 
-    private fun applyManifestAttributes(
+        // 2. Handle Kotlin Multiplatform
-        manifest: Manifest,
+        project.plugins.withId("org.jetbrains.kotlin.multiplatform") {
-        countFile: RegularFile,
+            val kotlinExt = project.extensions.getByType(KotlinMultiplatformExtension::class.java)
-        projectInfo: ProjectInfo,
+            kotlinExt.sourceSets.named("commonMain") {
-    ) {
+                this.kotlin.srcDir(versionTask.map { it.versionClassFile.get().asFile.parentFile })
-        val buildNumber = incrementBuildNumber(countFile)
+            }
-
-        with(manifest.attributes) {
-            this["module-name"] = projectInfo.name
-            this["displayname"] = projectInfo.displayName
-            this["description"] = projectInfo.description
-            this["copyright"] = projectInfo.copyright
-            this["version"] = projectInfo.version
-            this["build-number"] = buildNumber
-            this["build-timestamp"] = Instant.now().toString()
         }
 
-        println("build ${projectInfo.version}-$buildNumber")
     }
-
-    private fun incrementBuildNumber(propFile: RegularFile): String {
-        val props = Properties()
-        try {
-            FileInputStream(propFile.asFile).use { props.load(it) }
-        } catch (e: Exception) {
-            // noop
-        }
-
-        val currentBuildNumber = props.getProperty(BUILD_NUMBER_KEY)?.toLongOrNull() ?: 0
-        val newBuildNumber = currentBuildNumber + 1
-
-        props.setProperty(BUILD_NUMBER_KEY, newBuildNumber.toString())
-        props.store(FileOutputStream(propFile.asFile, false), GENERATED_COMMENT)
-
-        return newBuildNumber.toString()
-    }
-
-    data class ProjectInfo(
-        val version: String,
-        val displayName: String,
-        val copyright: String,
-        val name: String,
-        val description: String,
-    )
 }

src/main/kotlin/net/keinekekse/version/VersionPluginExtension.kt

@@ -1,5 +1,10 @@
 package net.keinekekse.version
 
+import org.gradle.api.file.RegularFileProperty
 import org.gradle.api.provider.Property
 
-interface VersionPluginExtension
+interface VersionPluginExtension {
+    val versionPackageName: Property<String>
+
+    val versionClassFile: RegularFileProperty
+}