Add handling for scaladoc 2 flags: private, groups, author, canonical doc url, project footer.

compiler/src/dotty/tools/dotc/config/ScalaSettings.scala

@@ -52,36 +52,6 @@ trait CommonScalaSettings { self: Settings.SettingGroup =>
   val showPlugins: Setting[Boolean]        = BooleanSetting      ("-Xplugin-list", "Print a synopsis of loaded plugins.")
   val pluginsDir: Setting[String]         = StringSetting       ("-Xpluginsdir", "path", "Path to search for plugin archives.", Defaults.scalaPluginPath)
   val pluginOptions: Setting[List[String]]      = MultiStringSetting  ("-P", "plugin:opt", "Pass an option to a plugin, e.g. -P:<plugin>:<opt>")
-
-   /** Doctool specific settings */
-  val siteRoot: Setting[String] = StringSetting(
-    "-siteroot",
-    "site root",
-    "A directory containing static files from which to generate documentation.",
-    "./docs"
-  )
-
-
-  val projectName: Setting[String] = StringSetting (
-    "-project",
-    "project title",
-    "The name of the project.",
-    ""
-  )
-
-  val projectVersion: Setting[String] = StringSetting (
-    "-project-version",
-    "project version",
-    "The current version of your project.",
-    ""
-  )
-
-  val projectLogo: Setting[String] = StringSetting(
-    "-project-logo",
-    "project logo filename",
-    "The file that contains the project's logo (in /images).",
-    ""
-  )
 }
 
 class ScalaSettings extends Settings.SettingGroup with CommonScalaSettings {

project/Build.scala

@@ -291,6 +291,8 @@ object Build {
     disableDocSetting
   )
 
+  private lazy val currentYear: String = java.util.Calendar.getInstance().get(java.util.Calendar.YEAR).toString
+
   lazy val scalacOptionsDocSettings = Seq(
       "-external-mappings:" +
         ".*scala.*::scaladoc3::http://dotty.epfl.ch/api/," +
@@ -309,6 +311,9 @@ object Build {
       // Reflect doesn't expect to see it as a standalone definition
       // and therefore it's easier just not to document it
       "-skip-by-id:scala.runtime.MatchCase",
+      "-project-footer", s"Copyright (c) 2002-$currentYear, LAMP/EPFL",
+      "-author",
+      "-groups"
   )
 
   // Settings used when compiling dotty with a non-bootstrapped dotty
@@ -426,7 +431,7 @@ object Build {
           s"""version.number=${version.value}
              |maven.version.number=${version.value}
              |git.hash=${VersionUtil.gitHash}
-             |copyright.string=Copyright 2002-${Calendar.getInstance().get(Calendar.YEAR)}, LAMP/EPFL
+             |copyright.string=Copyright 2002-$currentYear, LAMP/EPFL
            """.stripMargin
 
         if (!(file.exists && IO.read(file) == contents)) {

scaladoc-testcases/src/example/Documentation2.scala

@@ -9,4 +9,4 @@ class UserDocLinkingClass {
 
 object ReturnObjectWithType {
   type returnType = Int
-}
+}

scaladoc/src/dotty/tools/scaladoc/Scaladoc.scala

@@ -35,6 +35,7 @@ object Scaladoc:
     docsRoot: Option[String] = None,
     projectVersion: Option[String] = None,
     projectLogo: Option[String] = None,
+    projectFooter: Option[String] = None,
     defaultSyntax: CommentSyntax = CommentSyntax.Markdown,
     sourceLinks: List[String] = Nil,
     revision: Option[String] = None,
@@ -43,6 +44,10 @@ object Scaladoc:
     identifiersToSkip: List[String] = Nil,
     regexesToSkip: List[String] = Nil,
     rootDocPath: Option[String] = None,
+    includeAuthors: Boolean = false,
+    includeGroups: Boolean = false,
+    includePrivateAPI: Boolean = false,
+    docCanonicalBaseUrl: String = "",
     documentSyntheticTypes: Boolean = false,
   )
 
@@ -94,7 +99,8 @@ object Scaladoc:
         )(s => newContext.setSetting(s.asInstanceOf[Setting[T]], newValue))
       }
 
-    allSettings.filterNot(scaladocSpecificSettings.contains).foreach(setInGlobal)
+    val commonScalaSettings = (new SettingGroup with CommonScalaSettings).allSettings
+    allSettings.filter(commonScalaSettings.contains).foreach(setInGlobal)
 
     def parseTastyRoots(roots: String) =
       roots.split(File.pathSeparatorChar).toList.map(new File(_))
@@ -162,6 +168,7 @@ object Scaladoc:
         siteRoot.nonDefault,
         projectVersion.nonDefault,
         projectLogo.nonDefault,
+        projectFooter.nonDefault,
         parseSyntax,
         sourceLinks.get,
         revision.nonDefault,
@@ -170,6 +177,10 @@ object Scaladoc:
         skipById.get ++ deprecatedSkipPackages.get,
         skipByRegex.get,
         docRootContent.nonDefault,
+        author.get,
+        groups.get,
+        visibilityPrivate.get,
+        docCanonicalBaseUrl.get,
         YdocumentSyntheticTypes.get
       )
       (Some(docArgs), newContext)

scaladoc/src/dotty/tools/scaladoc/ScaladocSettings.scala

@@ -26,6 +26,17 @@ class ScaladocSettings extends SettingGroup with CommonScalaSettings:
     sourcepath, sourceroot
   )
 
+  val projectName: Setting[String] =
+    StringSetting("-project", "project title", "The name of the project.", "", aliases = List("-doc-title"))
+
+  val projectVersion: Setting[String] =
+    StringSetting("-project-version", "project version", "The current version of your project.", "", aliases = List("-doc-version"))
+
+  val projectLogo: Setting[String] =
+    StringSetting("-project-logo", "project logo filename", "The file that contains the project's logo (in /images).", "", aliases = List("-doc-logo"))
+
+  val projectFooter: Setting[String] = StringSetting("-project-footer", "project footer", "A footer on every Scaladoc page.", "", aliases = List("-doc-footer"))
+
   val sourceLinks: Setting[List[String]] =
     MultiStringSetting("-source-links", "sources", SourceLinks.usage)
 
@@ -57,8 +68,29 @@ class ScaladocSettings extends SettingGroup with CommonScalaSettings:
   val docRootContent: Setting[String] =
     StringSetting("-doc-root-content", "path", "The file from which the root package documentation should be imported.", "")
 
+  val author: Setting[Boolean] =
+    BooleanSetting("-author", "Include authors.", false)
+
+  val groups: Setting[Boolean] =
+    BooleanSetting("-groups", "Group similar functions together (based on the @group annotation)", false)
+
+  val visibilityPrivate: Setting[Boolean] =
+    BooleanSetting("-private", "Show all types and members. Unless specified, show only public and protected types and members.", false)
+
+  val docCanonicalBaseUrl: Setting[String] =
+    StringSetting(
+      "-doc-canonical-base-url",
+      "url",
+      s"A base URL to use as prefix and add `canonical` URLs to all pages. The canonical URL may be used by search engines to choose the URL that you want people to see in search results. If unset no canonical URLs are generated.",
+      ""
+    )
+
+  val siteRoot: Setting[String] = StringSetting(
+    "-siteroot",
+    "site root",
+    "A directory containing static files from which to generate documentation.",
+    "./docs"
+  )
+
   val YdocumentSyntheticTypes: Setting[Boolean] =
     BooleanSetting("-Ydocument-synthetic-types", "Documents intrinsic types e. g. Any, Nothing. Setting is useful only for stdlib", false)
-
-  def scaladocSpecificSettings: Set[Setting[_]] =
-    Set(sourceLinks, syntax, revision, externalDocumentationMappings, socialLinks, skipById, skipByRegex, deprecatedSkipPackages, docRootContent)

scaladoc/src/dotty/tools/scaladoc/renderers/HtmlRenderer.scala

@@ -131,6 +131,7 @@ class HtmlRenderer(rootPackage: Member, val members: Map[DRI, Member])(using ctx
       meta(charset := "utf-8"),
       meta(util.HTML.name := "viewport", content := "width=device-width, initial-scale=1"),
       title(page.link.name),
+      canonicalUrl(absolutePath(page.link.dri)),
       link(
         rel := "shortcut icon",
         `type` := "image/x-icon",
@@ -170,6 +171,14 @@ class HtmlRenderer(rootPackage: Member, val members: Map[DRI, Member])(using ctx
           )
     renderNested(navigablePage, toplevel = true)._2
 
+  private def canonicalUrl(l: String): AppliedTag | String =
+    val canon = args.docCanonicalBaseUrl
+    if !canon.isEmpty then
+      val canonicalUrl = if canon.endsWith("/") then canon else canon + "/"
+      link(rel := "canonical", href := canonicalUrl + l)
+    else
+      "" // return empty tag
+
   private def hasSocialLinks = !args.socialLinks.isEmpty
 
   private def socialLinks(whiteIcon: Boolean = true) =
@@ -194,6 +203,13 @@ class HtmlRenderer(rootPackage: Member, val members: Map[DRI, Member])(using ctx
         )).dropRight(1)
       div(cls := "breadcrumbs")(innerTags:_*)
 
+    def textFooter: String | AppliedTag =
+      args.projectFooter.fold("") { f =>
+        div(id := "footer-text")(
+          raw(f)
+        )
+      }
+
     div(id := "container")(
       div(id := "leftColumn")(
         div(id := "logo")(
@@ -244,7 +260,8 @@ class HtmlRenderer(rootPackage: Member, val members: Map[DRI, Member])(using ctx
                 cls := "scaladoc_logo"
               )
             )
+          ),
+          textFooter
         )
       )
     )
-    )

scaladoc/src/dotty/tools/scaladoc/renderers/MemberRenderer.scala

@@ -46,13 +46,15 @@ class MemberRenderer(signatureRenderer: SignatureRenderer)(using DocContext) ext
     def opt(name: String, on: Option[DocPart]): Seq[AppliedTag] =
       if on.isEmpty then Nil else tableRow(name, renderDocPart(on.get))
 
+    def authors(authors: List[DocPart]) = if summon[DocContext].args.includeAuthors then list("Authors", authors) else Nil
+
     m.docs.fold(Nil)(d =>
       nested("Type Params", d.typeParams) ++
       nested("Value Params", d.valueParams) ++
       opt("Returns", d.result) ++
       nested("Throws", d.throws) ++
       opt("Constructor", d.constructor) ++
-      list("Authors", d.authors) ++
+      authors(d.authors) ++
       list("See also", d.see) ++
       opt("Version", d.version) ++
       opt("Since", d.since) ++
@@ -263,7 +265,13 @@ class MemberRenderer(signatureRenderer: SignatureRenderer)(using DocContext) ext
       Tab("Grouped members", "custom_groups", content, "selected")
 
   def buildMembers(s: Member): AppliedTag =
-    val (membersInGroups, rest) = s.members.partition(_.docs.exists(_.group.nonEmpty))
+    def partitionIntoGroups(members: Seq[Member]) =
+      if summon[DocContext].args.includeGroups then
+        members.partition(_.docs.exists(_.group.nonEmpty))
+      else
+        (Nil, members)
+
+    val (membersInGroups, rest) = partitionIntoGroups(s.members)
 
     val extensions =
       rest.groupBy{ _.kind match

scaladoc/src/dotty/tools/scaladoc/tasty/SymOps.scala

@@ -83,15 +83,15 @@ class SymOps[Q <: Quotes](val q: Q) extends JavadocAnchorCreator with Scaladoc2A
         Flags.Case -> Modifier.Case,
         ).collect { case (flag, mod) if sym.flags.is(flag) => mod }
 
-    def isHiddenByVisibility: Boolean =
+    def isHiddenByVisibility(using dctx: DocContext): Boolean =
       import VisibilityScope._
 
-      getVisibility() match
+      !summon[DocContext].args.includePrivateAPI && getVisibility().match
         case Visibility.Private(_) => true
         case Visibility.Protected(ThisScope | ImplicitModuleScope | _: ExplicitModuleScope) => true
         case _ => false
 
-    def shouldDocumentClasslike: Boolean = !isHiddenByVisibility
+    def shouldDocumentClasslike(using dctx: DocContext): Boolean = !isHiddenByVisibility
         && !sym.flags.is(Flags.Synthetic)
         && (!sym.flags.is(Flags.Case) || !sym.flags.is(Flags.Enum))
         && !(sym.companionModule.flags.is(Flags.Given))