Scala3doc/community build

.github/workflows/scala3doc.yaml

@@ -62,3 +62,36 @@ jobs:
             echo uplading docs to https://scala3doc.virtuslab.com/$DOC_DEST
             az storage container create --name $DOC_DEST --account-name scala3docstorage --public-access container
             az storage blob sync -s scala3doc/output -c $DOC_DEST --account-name scala3docstorage
+
+  community-docs:
+    env:
+      AZURE_STORAGE_SAS_TOKEN: ${{ secrets.AZURE_STORAGE_SAS_TOKEN }}
+    runs-on: ubuntu-latest
+    if: "github.event_name == 'pull_request' || contains(github.event.ref, 'scala3doc') || contains(github.event.ref, 'master')"
+
+    steps:
+      - name: Git Checkout
+        uses: actions/checkout@v2
+
+      - name: Set up JDK 8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 8
+
+      - name: Init submodules
+        run: git submodule update --init --recursive --jobs 7
+
+      - name: Generate docs
+        run: ./project/scripts/sbt "community-build/run doc all docsOutput"
+
+      - name: Upload documentation to server
+        uses: azure/CLI@v1
+        if: env.AZURE_STORAGE_SAS_TOKEN
+        env:
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+        with:
+          inlineScript: |
+            DOC_DEST=pr-${PR_NUMBER:-${GITHUB_REF##*/}}-docs
+            echo uplading docs to https://scala3doc.virtuslab.com/$DOC_DEST
+            az storage container create --name $DOC_DEST --account-name scala3docstorage --public-access container
+            az storage blob sync -s community-build/docsOutput -c $DOC_DEST --account-name scala3docstorage

community-build/src/scala/dotty/communitybuild/Fields.scala

@@ -0,0 +1,9 @@
+package dotty.communitybuild
+
+import scala.quoted.Type
+
+class FieldsDsl[V](v: V):
+  inline def of[T]: Seq[T] = FieldsImpl.fieldsOfType[V, T](v)
+
+extension [V](on: V):
+  def fields = FieldsDsl(on)

community-build/src/scala/dotty/communitybuild/FieldsImpl.scala

@@ -0,0 +1,17 @@
+package dotty.communitybuild
+
+import scala.quoted._
+
+object FieldsImpl:
+  inline def fieldsOfType[V, T](inline v: V): Seq[T] =
+    ${ fieldsImpl[V, T]('v) }
+
+  def fieldsImpl[V: Type, T: Type](from: Expr[V])(using Quotes): Expr[Seq[T]] =
+    import quotes.reflect._
+    val retType = TypeTree.of[T].tpe
+    def isProjectField(s: Symbol) = 
+      s.isValDef && s.tree.asInstanceOf[ValDef].tpt.tpe <:< retType
+    val projectsTree = Term.of(from)
+    val symbols = TypeTree.of[V].symbol.members.filter(isProjectField)
+    val selects = symbols.map(Select(projectsTree, _).asExprOf[T])
+    '{ println(${Expr(retType.show)}); ${Varargs(selects)} }

community-build/src/scala/dotty/communitybuild/Main.scala

@@ -1,13 +1,91 @@
 package dotty.communitybuild
 
-object Main {
-  /** Builds stdlib.
-   *
-   *  Output is available in build/pack/lib directory in stdlib project.
-   *
-   *  In the future, we allow building different projects based on arguments,
-   *  but for now stdlib is the only usecase.
-   */
+import java.nio.file.Paths
+import java.nio.file.Path
+import java.nio.file.Files
+import scala.sys.process._
+
+
+object Main:
+
+  private def generateDocs(project: CommunityProject): Seq[Path] =
+    val name = project.project
+    try
+      project.doc()
+      val pathsOut = s"find community-projects/$name/ -name 'scala3doc.version'".!!
+      pathsOut.linesIterator.map(Paths.get(_).getParent).toList
+    catch
+      case e: Exception =>
+        e.printStackTrace()
+        Nil
+
+  /** Allows running various commands on community build projects. */
   def main(args: Array[String]): Unit =
-    projects.stdLib213.publish()
-}
+    args.toList match
+      case "publish" :: name :: Nil =>
+      case "doc" :: "all" :: destStr :: Nil =>
+        val dest = Paths.get(destStr)
+        Seq("rm", "-rf", "destStr").!
+        Files.createDirectory(dest)
+        val (toRun, ignored) =
+          allProjects.partition(_.docCommand != null)
+
+        val paths = toRun.map { project =>
+          val name = project.project
+          val projectDest = dest.resolve(name)
+          val projectRoot = Paths.get(s"community-projects/$name")
+          println(s"generating docs for $name into $projectDest")
+          val generatedDocs = generateDocs(project)
+          if !Files.exists(projectDest) && generatedDocs.nonEmpty then
+            Files.createDirectory(projectDest)
+
+          val docsFiles = generatedDocs.map { docsPath =>
+            val destFileName =
+              docsPath.subpath(2, docsPath.getNameCount).toString.replace('/', '_')
+
+            Seq("cp", "-r", docsPath.toString, projectDest.resolve(destFileName).toString).!
+            destFileName
+          }
+          name -> docsFiles
+        }
+
+        val (failed, withDocs) = paths.partition{ case (_, paths) => paths.isEmpty }
+
+        val indexFile = withDocs.map { case (name, paths) =>
+          paths.map(p => s"""<a href="$name/$p/index.html">$p</a></br>\n""")
+            .mkString(s"<h1>$name</h1>","\n", "\n")
+        }.mkString("<html><body>\n", "\n", "\n</html></body>")
+
+        Files.write(dest.resolve("index.html"), indexFile.getBytes)
+
+        if ignored.nonEmpty then
+          println(s"Ignored project without doc command: ${ignored.map(_.project)}")
+
+        if failed.nonEmpty then
+          println(s"Documentation not found for ${failed.map(_._1).mkString(", ")}")
+          sys.exit(1)
+
+      case "doc" :: names if names.nonEmpty =>
+        val missing = names.filterNot(projectMap.contains)
+        if missing.nonEmpty then
+          println(s"Missing projects: ${missing.mkString(", ")}. All projects: ${allProjects.mkString(", ")}")
+          sys.exit(1)
+
+        val failed = names.filter{ p =>
+          val docsRoots = generateDocs(projectMap(p))
+          if docsRoots.nonEmpty then println(s"Docs for $p generated in $docsRoots")
+          docsRoots.isEmpty
+        }
+        if failed.nonEmpty then
+          println(s"Documentation not found for ${failed.mkString(", ")}")
+          sys.exit(1)
+
+      case args =>
+        println("USAGE: <COMMAND> <PROJECT NAME>")
+        println("COMMAND is one of: publish doc")
+        println("Available projects are:")
+        allProjects.foreach { k =>
+          println(s"\t$k")
+        }
+        sys.exit(1)
+