docs: generate docs by dokka

Author: iseki0

build.gradle.kts

@@ -1,12 +1,16 @@
 import org.gradle.jvm.tasks.Jar
+import org.jetbrains.dokka.gradle.DokkaTask
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import java.net.URI
+import java.net.URL
 import java.util.*
 
 plugins {
     alias(libs.plugins.kotlin)
     alias(libs.plugins.kotlin.serialization)
     alias(libs.plugins.kotlinx.kover)
     alias(libs.plugins.kotlinx.binary.compatibility.validator)
+    alias(libs.plugins.dokka)
     `maven-publish`
     signing
 }
@@ -172,3 +176,20 @@ tasks.withType<AbstractArchiveTask>().configureEach {
     isReproducibleFileOrder = true
 }
 
+tasks.withType<DokkaTask> {
+    dokkaSourceSets.configureEach {
+        sourceLink {
+            localDirectory = project.layout.projectDirectory.dir("src").asFile
+            val p =
+                project.layout.projectDirectory.dir("src").asFile.relativeTo(rootProject.layout.projectDirectory.asFile)
+                    .toString()
+                    .replace('\\', '/')
+            remoteUrl = URI.create("https://github.com/iseki0/kotlinx-serialization-bencoding/tree/master/$p").toURL()
+            remoteLineSuffix = "#L"
+        }
+        externalDocumentationLink {
+            url = URI.create("https://kotlinlang.org/api/kotlinx.serialization/").toURL()
+        }
+    }
+}
+

gradle/libs.versions.toml

@@ -11,3 +11,4 @@ kotlin = { id = "org.jetbrains.kotlin.multiplatform", version.ref = "kotlin" }
 kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin" }
 kotlinx-kover = { id = "org.jetbrains.kotlinx.kover", version = "0.7.6" }
 kotlinx-binary-compatibility-validator = "org.jetbrains.kotlinx.binary-compatibility-validator:0.17.0"
+dokka = { id = "org.jetbrains.dokka", version = "2.0.0" }