Add sample project of versioning multi module (#2170)

* Add sample project of versioning multi module

* Add sample task to generate previously docs

* Update Gradle version

* Update Kotlin version

1 files changed, 25 insertions, 0 deletions

diff --git a/examples/gradle/dokka-versioning-multimodule-example/parentProject/build.gradle.kts b/examples/gradle/dokka-versioning-multimodule-example/parentProject/build.gradle.kts
new file mode 100644
index 00000000..3abd1ab3
--- /dev/null
+++ b/examples/gradle/dokka-versioning-multimodule-example/parentProject/build.gradle.kts
@@ -0,0 +1,25 @@
+import org.jetbrains.dokka.gradle.DokkaMultiModuleTask
+
+dependencies {
+    implementation(kotlin("stdlib"))
+}
+
+val olderVersionsFolder = "olderVersions"
+
+// The previously documentations should be generated with the versioning plugin
+val generatePreviouslyDocTask by tasks.register<DokkaMultiModuleTask>("dokkaPreviouslyDocumentation") {
+    dependencies {
+        dokkaPlugin("org.jetbrains.dokka:all-modules-page-plugin:1.6.0")
+        dokkaPlugin("org.jetbrains.dokka:versioning-plugin:1.6.0")
+    }
+    val configuredVersion = "0.9"
+    outputDirectory.set(file(projectDir.toPath().resolve(olderVersionsFolder).resolve(configuredVersion)))
+    pluginsMapConfiguration.set(mapOf("org.jetbrains.dokka.versioning.VersioningPlugin" to """{ "version": "$configuredVersion" }"""))
+    addChildTasks(listOf(project("childProjectA"), project("childProjectB")), "dokkaHtmlPartial")
+}
+
+tasks.dokkaHtmlMultiModule {
+    dependsOn(generatePreviouslyDocTask)
+    val configuredVersion = "1.0"
+    pluginsMapConfiguration.set(mapOf("org.jetbrains.dokka.versioning.VersioningPlugin" to """{ "version": "$configuredVersion", "olderVersionsDir": "$projectDir/$olderVersionsFolder" }"""))
+}
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