Kotlin DSL - 'site' (#1938) (#1954)

site/build.gradle.kts

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2016-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ */
+
+val buildDocsDir = "$buildDir/docs"
+val jekyllDockerImage = "jekyll/jekyll:${version("jekyll")}"
+
+val copyDocs = tasks.register<Copy>("copyDocs") {
+    val dokkaTasks = rootProject.getTasksByName("dokka", true)
+
+    from(dokkaTasks.map { "${it.project.buildDir}/dokka" }) {
+        include("**/*.md")
+        include("**/package-list")
+    }
+    from("docs")
+    into(buildDocsDir)
+
+    dependsOn(dokkaTasks)
+}
+
+val copyExampleFrontendJs = tasks.register<Copy>("copyExampleFrontendJs") {
+    val srcBuildDir = project(":example-frontend-js").buildDir
+    from("$srcBuildDir/dist")
+    into("$buildDocsDir/example-frontend-js")
+
+    dependsOn(":example-frontend-js:bundle")
+}
+
+tasks.register<Exec>("site") {
+    description = "Generate github pages"
+
+    inputs.files(fileTree(buildDocsDir))
+    outputs.dir("$buildDir/dist")
+    workingDir = file(buildDocsDir)
+
+    commandLine(
+        "docker", "run", "--rm", "--volume=$buildDir:/srv/jekyll",
+        "-t", jekyllDockerImage,
+        "/bin/bash", "-c", "cd docs; jekyll build"
+    )
+
+    dependsOn(copyDocs)
+    dependsOn(copyExampleFrontendJs)
+}
+
+// A useful task for local debugging -- serves a site locally
+tasks.register<Exec>("serve") {
+    commandLine(
+        "docker", "run", "--rm", "--volume=$buildDir:/srv/jekyll",
+        "-p", "8080:8080",
+        "-t", jekyllDockerImage,
+        "/bin/bash", "-c", "cd docs; jekyll serve --host 0.0.0.0 --port 8080"
+    )
+
+    dependsOn(copyDocs)
+    dependsOn(copyExampleFrontendJs)
+}
+
+tasks.register<Delete>("clean") {
+    delete(buildDir)
+}
+