in with GitHub Actions, out with Travis-CI

.github/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: test
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+jobs:
+  test:
+    strategy:
+      fail-fast: false
+      matrix:
+        java: [8, 11, 17]
+        scala: [2.12.15, 2.13.6, 3.0.2]
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - uses: coursier/cache-action@v6
+    - uses: actions/setup-java@v2
+      with:
+        distribution: adopt
+        java-version: ${{matrix.java}}
+    - name: Test
+      run: sbt ++${{matrix.scala}} test headerCheck versionPolicyCheck package

.github/workflows/release.yml

@@ -0,0 +1,21 @@
+name: Release
+on:
+  push:
+    tags: ["*"]
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-java@v2
+        with:
+          distribution: adopt
+          java-version: 8
+      - run: sbt versionCheck ci-release
+        env:
+          PGP_PASSPHRASE: ${{secrets.PGP_PASSPHRASE}}
+          PGP_SECRET: ${{secrets.PGP_SECRET}}
+          SONATYPE_PASSWORD: ${{secrets.SONATYPE_PASSWORD}}
+          SONATYPE_USERNAME: ${{secrets.SONATYPE_USERNAME}}

README.md

@@ -1,5 +1,4 @@
 scala-xml
-[![Travis](https://img.shields.io/travis/scala/scala-xml.svg)](https://travis-ci.org/scala/scala-xml)
 [![latest release for 2.12](https://img.shields.io/maven-central/v/org.scala-lang.modules/scala-xml_2.12.svg?label=scala+2.12)](http://mvnrepository.com/artifact/org.scala-lang.modules/scala-xml_2.12)
 [![latest release for 2.13](https://img.shields.io/maven-central/v/org.scala-lang.modules/scala-xml_2.13.svg?label=scala+2.13)](http://mvnrepository.com/artifact/org.scala-lang.modules/scala-xml_2.13)
 [![latest release for 3.0](https://img.shields.io/maven-central/v/org.scala-lang.modules/scala-xml_3.svg?label=scala+3)](http://mvnrepository.com/artifact/org.scala-lang.modules/scala-xml_3)

build.sbt

@@ -1,5 +1,7 @@
 import sbtcrossproject.CrossPlugin.autoImport.{crossProject, CrossType}
 
+publish / skip := true  // root project
+
 ThisBuild / startYear := Some(2002)
 ThisBuild / licenses += (("Apache-2.0", url("https://www.apache.org/licenses/LICENSE-2.0")))
 
@@ -33,6 +35,8 @@ lazy val xml = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .settings(
     name    := "scala-xml",
     scalaModuleAutomaticModuleName := Some("scala.xml"),
+    crossScalaVersions := Seq("2.13.6", "2.12.15", "3.0.2"),
+
     scalacOptions ++= (CrossVersion.partialVersion(scalaVersion.value) match {
       case Some((3, _)) =>
         Seq("-language:Scala2")
@@ -129,6 +133,7 @@ lazy val xml = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   )
   .jsEnablePlugins(ScalaJSJUnitPlugin)
   .nativeSettings(
+    crossScalaVersions := Seq("2.13.6", "2.12.15"),
     // Scala Native cannot run forked tests
     Test / fork := false,
     libraryDependencies += "org.scala-native" %%% "junit-runtime" % nativeVersion % Test,

project/plugins.sbt

@@ -1,12 +1,6 @@
-val scalaJSVersion =
-  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("1.7.0")
-
-val scalaNativeVersion =
-  Option(System.getenv("SCALANATIVE_VERSION")).filter(_.nonEmpty).getOrElse("0.4.0")
-
-addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.4.0")
+addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "3.0.0")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.1.0")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.1.0")
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % scalaJSVersion)
-addSbtPlugin("org.scala-native" % "sbt-scala-native" % scalaNativeVersion)
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.7.0")
+addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.4.0")
 addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.6.0")

shared/src/main/scala-2.13-/scala/xml/ScalaVersionSpecific.scala

@@ -1,3 +1,15 @@
+/*
+ * Scala (https://www.scala-lang.org)
+ *
+ * Copyright EPFL and Lightbend, Inc.
+ *
+ * Licensed under Apache License 2.0
+ * (http://www.apache.org/licenses/LICENSE-2.0).
+ *
+ * See the NOTICE file distributed with this work for
+ * additional information regarding copyright ownership.
+ */
+
 package scala.xml
 
 import scala.collection.SeqLike