scala 3 support

.github/workflows/ci.yml

@@ -26,8 +26,9 @@ jobs:
   build:
     strategy:
       matrix:
-        java: [ '8', '11',  '17' ]
-        os: [ 'ubuntu-latest' ]
+        os: [ubuntu-latest]
+        scala: [2.10.7, 2.11.12, 2.12.15, 2.13.7, 3.0.2]
+        java: ['8', '11', '17']
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v2
@@ -36,5 +37,16 @@ jobs:
       with:
         java-version: ${{ matrix.java }}
         distribution: 'zulu'
+    - name: Cache sbt
+      uses: actions/cache@v2
+      with:
+        path: |
+          ~/.sbt
+          ~/.ivy2/cache
+          ~/.coursier/cache/v1
+          ~/.cache/coursier/v1
+          ~/AppData/Local/Coursier/Cache/v1
+          ~/Library/Caches/Coursier/v1
+        key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
     - name: Build
-      run: sbt -batch "+ test"
+      run: sbt ++${{ matrix.scala }} test

.gitignore

@@ -10,3 +10,4 @@ target/
 velocity.log
 felix-cache/
 bin/
+.bsp/sbt.json

BUILDING.md

@@ -18,6 +18,8 @@
 
 Moved to [site docs](./src/asciidoctor/build.adoc).
 
+Install [sbt](https://www.scala-sbt.org/) if you do not have it installed.
+
 Summary:
 
-    ./sbt "+ publishM2"
+    sbt "+ publishM2"

build.sbt

@@ -51,12 +51,12 @@ lazy val metadataSettings = Seq(
 lazy val compileSettings = Seq(
   scalacOptions := Seq("-feature", "-unchecked", "-deprecation"),
   scalaVersion := scala213,
-  crossScalaVersions := Seq(scala210, scala211, scala212, scala213)
+  crossScalaVersions := Seq(scala210, scala211, scala212, scala213, scala3)
 )
 
 lazy val publishSettings = Seq(
   publishMavenStyle := true,
-  publishArtifact in Test := false,
+  Test / publishArtifact := false,
   publishTo := {
     if (isSnapshot.value) {
       Some("Apache Snapshots" at "https://repository.apache.org/content/repositories/snapshots")
@@ -82,23 +82,45 @@ lazy val licensePackagingSettings =
     )
 
 lazy val sourceSettings = Seq(
-    unmanagedSourceDirectories in Compile ++= {
-        (unmanagedSourceDirectories in Compile).value.map { dir =>
+    Compile / unmanagedSourceDirectories ++= {
+        (Compile / unmanagedSourceDirectories).value.flatMap { dir =>
           CrossVersion.partialVersion(scalaVersion.value) match {
-            case Some((2, n11)) if n11 >= 11 => file(dir.getPath ++ "-2.11+")
-            case Some((2, n10)) if n10 <= 10 => file(dir.getPath ++ "-2.10")
+            case Some((3, _)) => Seq(file(dir.getPath ++ "-3"))
+            case Some((2, n11)) if n11 >= 11 => Seq(file(dir.getPath ++ "-2"), file(dir.getPath ++ "-2.11+"))
+            case Some((2, n10)) if n10 <= 10 => Seq(file(dir.getPath ++ "-2"), file(dir.getPath ++ "-2.10"))
           }
         }
     },
-    unmanagedSourceDirectories in Compile ++= {
-    (unmanagedSourceDirectories in Compile).value.map { dir =>
+    Compile / unmanagedSourceDirectories ++= {
+      (Compile / unmanagedSourceDirectories).value.map { dir =>
+        CrossVersion.partialVersion(scalaVersion.value) match {
+          case Some((3, _)) => file(dir.getPath ++ "-2.13+")
+          case Some((2, n13)) if n13 >= 13 => file(dir.getPath ++ "-2.13+")
+          case Some((2, n12)) if n12 <= 12 => file(dir.getPath ++ "-2.12-")
+        }
+      }
+    }
+  )
+
+lazy val testSourceSettings = Seq(
+  Test / unmanagedSourceDirectories ++= {
+    (Test / unmanagedSourceDirectories).value.map { dir =>
       CrossVersion.partialVersion(scalaVersion.value) match {
+        case Some((3, _)) => file(dir.getPath ++ "-3")
+        case Some((2, _)) => file(dir.getPath ++ "-2")
+      }
+    }
+  },
+  Compile / unmanagedSourceDirectories ++= {
+    (Compile / unmanagedSourceDirectories).value.map { dir =>
+      CrossVersion.partialVersion(scalaVersion.value) match {
+        case Some((3, _)) => file(dir.getPath ++ "-2.13+")
         case Some((2, n13)) if n13 >= 13 => file(dir.getPath ++ "-2.13+")
         case Some((2, n12)) if n12 <= 12 => file(dir.getPath ++ "-2.12-")
       }
     }
   }
-  )
+)
 
 lazy val releaseSettings = Seq(
   releaseCrossBuild := true,
@@ -109,7 +131,7 @@ lazy val releaseSettings = Seq(
       checkSnapshotDependencies,
       inquireVersions,
       runClean,
-      releaseStepTask(auditCheck in Compile),
+      releaseStepTask(Compile / auditCheck),
       runTest,
       setReleaseVersion,
       commitReleaseVersion,
@@ -125,20 +147,19 @@ lazy val releaseSettings = Seq(
 
 lazy val siteSettings = Seq(
   apiURL := Some(url(s"https://logging.apache.org/log4j/log4j-scala-${version.value}/")),
-  siteSubdirName in SiteScaladoc := s"api/${scalaBinaryVersion.value}",
-  managedSources in Asciidoc += {
-    (auditReport in Compile).value
-    (target in Compile).value / "rat.adoc"
+  SiteScaladoc / siteSubdirName := s"api/${scalaBinaryVersion.value}",
+  Asciidoc / managedSources += {
+    (Compile / auditReport).value
+    (Compile / target).value / "rat.adoc"
   },
-  mappings in makeSite ++= Seq(
+  makeSite / mappings ++= Seq(
     (baseDirectory.value / "LICENSE.txt", "LICENSE"),
     (baseDirectory.value / "NOTICE.txt", "NOTICE")
   )
 )
 
 lazy val apiDependencies = Seq(
-  libraryDependencies ++= Seq(
-    scalaReflect(scalaVersion.value),
+  libraryDependencies ++= scalaReflect(scalaVersion.value).toSeq ++ Seq(
     osgiCoreApi,
     log4jApi,
     log4jApiTests,
@@ -165,6 +186,7 @@ lazy val root = (project in file("."))
   .settings(publishSettings: _*)
   .settings(licensePackagingSettings: _*)
   .settings(sourceSettings: _*)
+  .settings(testSourceSettings: _*)
   .settings(releaseSettings: _*)
   .settings(siteSettings: _*)
   .settings(apiDependencies: _*)
@@ -174,7 +196,7 @@ lazy val nopublish = Seq(
   publish := {},
   publishLocal := {},
   publishM2 := {},
-  skip in publish := true
+  publish / skip := true
 )
 
 lazy val sample = (project in file("sample"))

project/Dependencies.scala

@@ -19,23 +19,24 @@ import sbt._
 object Dependencies {
   val scala210 = "2.10.7"
   val scala211 = "2.11.12"
-  val scala212 = "2.12.10"
-  val scala213 = "2.13.1"
+  val scala212 = "2.12.15"
+  val scala213 = "2.13.7"
+  val scala3 = "3.0.2"
 
-  def scalaReflect(version: String): ModuleID =
-    "org.scala-lang" % "scala-reflect" % version
+  def scalaReflect(version: String) =
+    if (version.startsWith("3")) None else Some("org.scala-lang" % "scala-reflect" % version)
 
   private val log4jV = "2.17.0"
   val osgiCoreApi      = "org.osgi" % "org.osgi.core" % "6.0.0" % Provided
   val log4jApi         = "org.apache.logging.log4j" % "log4j-api" % log4jV
   val log4jApiTests    = "org.apache.logging.log4j" % "log4j-api" % log4jV % Test classifier "tests"
   val log4jCore        = "org.apache.logging.log4j" % "log4j-core" % log4jV % Runtime
   val junit            = "junit" % "junit" % "4.12" % Test
-  val scalactic        = "org.scalactic" %% "scalactic" % "3.2.0-M1" % Compile
-  val scalatest        = "org.scalatest" %% "scalatest" % "3.2.0-M1" % Test
-  val scalatestFunsuit = "org.scalatest" %% "scalatest-funsuite" % "3.2.0-M1" % Test
-  val scalatestMatcher = "org.scalatest" %% "scalatest-matchers-core" % "3.2.0-M1" % Test
-  val scalatestJunit   = "org.scalatestplus" %% "scalatestplus-junit" % "1.0.0-M2" % Test
-  val scalatestMockito = "org.scalatestplus" %% "scalatestplus-mockito" % "1.0.0-M2" % Test
-  val mockito          = "org.mockito" % "mockito-core" % "3.1.0" % Test
+  val scalactic        = "org.scalactic" %% "scalactic" % "3.2.10" % Compile
+  val scalatest        = "org.scalatest" %% "scalatest" % "3.2.10" % Test
+  val scalatestFunsuit = "org.scalatest" %% "scalatest-funsuite" % "3.2.10" % Test
+  val scalatestMatcher = "org.scalatest" %% "scalatest-matchers-core" % "3.2.10" % Test
+  val scalatestJunit   = "org.scalatestplus" %% "junit-4-13" % "3.2.10.0" % Test
+  val scalatestMockito = "org.scalatestplus" %% "mockito-3-12" % "3.2.10.0" % Test
+  val mockito          = "org.mockito" % "mockito-core" % "4.2.0" % Test
 }

project/plugins.sbt

@@ -18,7 +18,6 @@ addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.1")
 addSbtPlugin("com.github.gseitz" % "sbt-release" % "1.0.8")
 addSbtPlugin("com.typesafe.sbt" % "sbt-license-report" % "1.2.0")
 addSbtPlugin("com.typesafe.sbt" % "sbt-site" % "1.3.2")
-addSbtPlugin("net.virtual-void" % "sbt-dependency-graph" % "0.9.0")
 addSbtPlugin("com.typesafe.sbt" % "sbt-osgi" % "0.9.3")
 // for quicker resolutions from Maven Central of new releases, uncomment:
 //resolvers += Resolver.sonatypeRepo("public")

src/main/scala-2.10/org/apache/logging/log4j/scala/LoggerMacro.scala

@@ -16,8 +16,7 @@
  */
 package org.apache.logging.log4j.scala
 
-import org.apache.logging.log4j.message.{EntryMessage, Message}
-import org.apache.logging.log4j.spi.AbstractLogger
+import org.apache.logging.log4j.message.Message
 import org.apache.logging.log4j.{Level, Marker}
 
 import scala.language.experimental.macros
@@ -337,89 +336,4 @@ private object LoggerMacro {
       }
     )
 
-
-  def traceEntry(c: LoggerContext)(): c.Expr[EntryMessage] =
-    c.universe.reify(
-      c.prefix.splice.delegate.traceEntry()
-    )
-
-  def traceEntryParams(c: LoggerContext)(params: c.Expr[AnyRef]*): c.Expr[EntryMessage] = {
-    import c.universe._
-    val isEnabled = Apply(
-      Select(Select(c.prefix.tree, newTermName("delegate")), newTermName("isEnabled")),
-      List(
-        reify(Level.TRACE).tree,
-        reify(AbstractLogger.ENTRY_MARKER).tree,
-        reify(null: AnyRef).tree,
-        reify(null).tree
-      )
-    )
-
-    val log = Apply(
-      Select(Select(c.prefix.tree, newTermName("delegate")), newTermName("traceEntry")),
-      reify(null: String).tree :: (params map (_.tree)).toList
-    )
-    c.Expr[EntryMessage](If(isEnabled, log, reify(null).tree))
-  }
-
-
-  def traceEntryMessage(c: LoggerContext)(message: c.Expr[Message]): c.Expr[EntryMessage] =
-    c.universe.reify(
-      if (c.prefix.splice.delegate.isEnabled(Level.TRACE, AbstractLogger.ENTRY_MARKER, null: AnyRef, null)) {
-        c.prefix.splice.delegate.traceEntry(message.splice)  // TODO should not do ifEnabled check
-      } else {
-        null
-      }
-    )
-
-  def traceExit(c: LoggerContext)(): c.Expr[Unit] =
-    c.universe.reify(
-      c.prefix.splice.delegate.traceExit()
-    )
-
-  def traceExitResult[R: c.WeakTypeTag](c: LoggerContext)(result: c.Expr[R]): c.Expr[R] =
-    c.universe.reify(
-      c.prefix.splice.delegate.traceExit(result.splice)
-    )
-
-  def traceExitEntryMessage(c: LoggerContext)(entryMessage: c.Expr[EntryMessage]): c.Expr[Unit] =
-    c.universe.reify(
-      c.prefix.splice.delegate.traceExit(entryMessage.splice)
-    )
-
-  def traceExitEntryMessageResult[R: c.WeakTypeTag](c: LoggerContext)(entryMessage: c.Expr[EntryMessage], result: c.Expr[R]): c.Expr[R] =
-    c.universe.reify(
-      c.prefix.splice.delegate.traceExit(entryMessage.splice, result.splice)
-    )
-
-  def traceExitMessageResult[R: c.WeakTypeTag](c: LoggerContext)(message: c.Expr[Message], result: c.Expr[R]): c.Expr[R] =
-    c.universe.reify(
-      {
-        if (message.splice != null && c.prefix.splice.delegate.isEnabled(Level.TRACE, AbstractLogger.EXIT_MARKER, message.splice, null)) {
-          c.prefix.splice.delegate.traceExit(message.splice, result.splice)  // TODO should not do ifEnabled check
-        }
-        result.splice
-      }
-    )
-
-  def throwing[T <: Throwable: c.WeakTypeTag](c: LoggerContext)(t: c.Expr[T]): c.Expr[T] =
-    c.universe.reify(
-      c.prefix.splice.delegate.throwing(t.splice)
-    )
-
-  def throwingLevel[T <: Throwable: c.WeakTypeTag](c: LoggerContext)(level: c.Expr[Level], t: c.Expr[T]): c.Expr[T] =
-    c.universe.reify(
-      c.prefix.splice.delegate.throwing(level.splice, t.splice)
-    )
-
-  def catching(c: LoggerContext)(t: c.Expr[Throwable]): c.Expr[Unit] =
-    c.universe.reify(
-      c.prefix.splice.delegate.catching(t.splice)
-    )
-
-  def catchingLevel(c: LoggerContext)(level: c.Expr[Level], t: c.Expr[Throwable]): c.Expr[Unit] =
-    c.universe.reify(
-      c.prefix.splice.delegate.catching(level.splice, t.splice)
-    )
-
 }