Add minimal working plugin setup

.github/workflows/ci.yml

@@ -76,11 +76,11 @@ jobs:
 
       - name: Make target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
-        run: mkdir -p laikaIO/.jvm/target core/.js/target jsinterop/.js/target core/.jvm/target project/target
+        run: mkdir -p sbt/target laikaIO/.jvm/target core/.js/target jsinterop/.js/target core/.jvm/target project/target
 
       - name: Compress target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
-        run: tar cf targets.tar laikaIO/.jvm/target core/.js/target jsinterop/.js/target core/.jvm/target project/target
+        run: tar cf targets.tar sbt/target laikaIO/.jvm/target core/.js/target jsinterop/.js/target core/.jvm/target project/target
 
       - name: Upload target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')

build.sbt

@@ -50,6 +50,7 @@ lazy val root =
     core,
     laikaIO,
     jsInterop,
+    plugin,
     web,
     searchdocsCore,
     searchdocsIO,
@@ -108,6 +109,18 @@ lazy val jsInterop = crossProject(JSPlatform)
     ),
   )
 
+lazy val plugin =
+  project
+    .in(file("sbt"))
+    .dependsOn(core.jvm, laikaIO.jvm)
+    .enablePlugins(SbtPlugin)
+    .settings(
+      name := "protosearch-sbt",
+      sbtPlugin := true,
+      crossScalaVersions := Seq(Scala212),
+      addSbtPlugin("org.typelevel" % "laika-sbt" % laikaV),
+    )
+
 lazy val searchdocsCore = crossProject(JVMPlatform, JSPlatform)
   .crossType(CrossType.Pure)
   .in(file("searchdocs"))

sbt/src/main/scala/pink/cozydev/protosearch/ProtosearchPlugin.scala

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2022 CozyDev
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package pink.cozydev.protosearch.sbt
+
+import sbt.*
+import sbt.Keys.*
+import laika.sbt.LaikaPlugin
+import laika.sbt.LaikaPlugin.autoImport._
+
+object ProtosearchPlugin extends AutoPlugin {
+
+  override val trigger = allRequirements
+
+  override def requires = plugins.JvmPlugin && LaikaPlugin
+
+  object autoImport {
+    val protosearchGenerateIndex = taskKey[Set[File]]("Generate Protosearch Index files")
+    val protosearchIndexTarget = settingKey[String]("The target directory for index files")
+  }
+
+  import autoImport._
+
+  override lazy val projectSettings: Seq[Setting[_]] = Seq(
+    protosearchIndexTarget := ((Laika / target).value / "index").toString(),
+    protosearchGenerateIndex := Tasks.protosearchGenerateIndex.value,
+  )
+}

sbt/src/main/scala/pink/cozydev/protosearch/Tasks.scala

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2022 CozyDev
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package pink.cozydev.protosearch.sbt
+
+import cats.effect.IO
+import cats.effect.unsafe.implicits.global
+import pink.cozydev.protosearch.analysis.DocsDirectory
+import sbt.*
+import laika.io.model.FilePath
+
+object Tasks {
+  import Def.*
+  import laika.sbt.LaikaPlugin.autoImport._
+  import pink.cozydev.protosearch.sbt.ProtosearchPlugin.autoImport._
+
+  val protosearchGenerateIndex: Initialize[Task[Set[File]]] = task {
+    val userConfig = (Compile / laikaConfig).value
+    val targetDir = protosearchIndexTarget.value
+
+    val parser = laika.sbt.Settings.parser.value
+    val tree = parser.use(_.fromInput(laikaInputs.value.delegate).parse).unsafeRunSync()
+    DocsDirectory.plaintextRenderer
+      .use(
+        _.from(tree)
+          .toDirectory(FilePath.parse(targetDir))(userConfig.encoding)
+          .render
+      )
+      .unsafeRunSync()
+
+    val msg = IO.println(s"rendered to ${targetDir}")
+
+    msg.unsafeRunSync()
+    Set.empty
+  }
+
+}