modules will use GitHub Actions, not Travis-CI

Author: SethTisue

README.md

@@ -4,7 +4,6 @@ This is an sbt 1.x plugin for building Scala modules.
 
 ## What modules use it?
 
-* [travis-test](https://github.com/lrytz/travis-test) (example project for testing this plugin and tag-driven releases)
 * [scala-async](https://github.com/scala/scala-async)
 * [scala-collection-compat](https://github.com/scala/scala-collection-compat)
 * [scala-collection-contrib](https://github.com/scala/scala-collection-contrib)
@@ -25,19 +24,17 @@ A major feature of the plugin is automated tag-based publishing using
 sbt-ci-release. A release is made by pushing a tag to GitHub.
 
 The plugin also brings in
-  - sbt-travisci to set the `scalaVersion` and `crossScalaVersions`
   - sbt-dynver to set the `version` based on the git history
+  - sbt-version-policy to check the versioning policy using MiMa
   - sbt-header to automate copyright header maintenance
-  - sbt-mima-plugin to maintain binary compatibility
   - sbt-osgi, if enabled with `scalaModuleOsgiSettings`
-  - sbt-version-policy to check the versioning policy
 
 ## Usage
 
 Add the plugin to the `project/plugins.sbt` file:
 
 ```
-addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.2.3")
+addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % <version>)
 ```
 
 Then, in your `build.sbt` add:
@@ -61,18 +58,16 @@ OsgiKeys.exportPackage := Seq(s"<exported package>;version=${version.value}")
 // Other settings
 ```
 
-Scala versions are defined in `.travis.yml`.
-
-Cross-building with Scala.js and Scala Native is possible, see travis-test, scala-xml or scala-parser-combinators for example.
+Cross-building with Scala.js and Scala Native is possible.  See scala-xml or scala-parser-combinators for examples.
 
 These additional settings are enabled by `scalaModuleSettings`:
-  - `scalacOptions in (Compile, compile) ++= Seq("-feature", "-deprecation", "-unchecked", "-Xlint")`
+  - `Compile / compile / scalacOptions ++= Seq("-feature", "-deprecation", "-unchecked", "-Xlint")`
   - A `projectName.properties` file is generated and packaged
-  - `fork in Test := true` to work around some classpath clashes with scala-xml
+  - `Test / fork := true` to work around some classpath clashes with scala-xml
   - POM metadata
 
 The following settings are also available:
-  - `enableOptimizer` adds `-opt-inline-from:<sources>` or `-opt:l:project` or `-optimize` to `scalacOptions in (Compile, compile)`,
+  - `enableOptimizer` adds `-opt-inline-from:<sources>` or `-opt:l:project` or `-optimize` to `Compile / compile / scalacOptions`,
     depending on the Scala version
 
 ## Set up tag-based publishing
@@ -90,7 +85,7 @@ The instructions here are a summary of the readme in https://github.com/olafurpg
   - Copy the public key to a key server
     - `gpg --armor --export $LONG_ID`
     - http://keyserver.ubuntu.com:11371/
-  - Open the Settings panel on your project's travis, define four secret env vars
+  - In your repo's Actions settings, define four secret env vars
     - `PGP_PASSPHRASE` the passphrase you chose above
     - `PGP_SECRET` the secret key in base64
       - macOS: `gpg --armor --export-secret-keys $LONG_ID | base64`

build.sbt

@@ -9,6 +9,5 @@ developers          := List(Developer("", "", "", url("https://scala-lang.org"))
 
 addSbtPlugin("com.typesafe.sbt" % "sbt-osgi" % "0.9.6")
 addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.6.0")
-addSbtPlugin("com.dwijnand" % "sbt-travisci" % "1.2.0")   // set scalaVersion and crossScalaVersions
 addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.7") // set version, scmInfo, publishing settings
-addSbtPlugin("ch.epfl.scala" % "sbt-version-policy" % "2.0.0")
+addSbtPlugin("ch.epfl.scala" % "sbt-version-policy" % "2.0.0")  // brings in MiMa

src/main/scala/ScalaModulePlugin.scala

@@ -37,17 +37,6 @@ object ScalaModulePlugin extends AutoPlugin {
   override def projectSettings: Seq[Setting[_]] = Seq(
     // The staging profile is called `org.scala-lang`, the default is `org.scala-lang.modules`
     sonatypeProfileName := "org.scala-lang",
-
-    // The staging repository name. The default is `[sbt-sonatype] name version`. We include the
-    // Scala/Scala.js/Scala Native versions and the travis job number to avoid conflicts when
-    // running the travis jobs. Example: collection-compat has a two 2.12.x jobs, one for the
-    // compat library, one for the migration rules, and both were writing to the same staging repo.
-    sonatypeSessionName := {
-      val sjs = Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).map(v => s" (js $v)").getOrElse("")
-      val native = Option(System.getenv("SCALANATIVE_VERSION")).filter(_.nonEmpty).map(v => s" (native $v)").getOrElse("")
-      val jobNr = Option(System.getenv("TRAVIS_JOB_NUMBER")).filter(_.nonEmpty).map(v => s" (travis #$v)").getOrElse("")
-      s"${sonatypeSessionName.value} Scala ${scalaVersion.value}$sjs$native$jobNr"
-    },
   )
 
   // Global settings