enable github actions

.github/workflows/pr.yml

@@ -0,0 +1,41 @@
+name: PR Build
+
+on: [pull_request]
+
+jobs:
+  build:
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        java: [15]
+        scala: [2.13.3]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK ${{ matrix.java }}
+        uses: actions/setup-java@v1
+        with:
+          java-version: ${{ matrix.java }}
+      - uses: actions/cache@v2
+        with:
+          path: |
+            ~/.sbt
+            ~/.ivy2
+          key: ${{ runner.os }}-${{ hashFiles('**/*.sbt') }}
+      - name: Build
+        run: cat /dev/null | project/sbt ++${{ matrix.scala }} clean test
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK 15
+        uses: actions/setup-java@v1
+        with:
+          java-version: 15
+      - uses: actions/cache@v2
+        with:
+          path: |
+            ~/.sbt
+            ~/.ivy2
+          key: ${{ runner.os }}-${{ hashFiles('**/*.sbt') }}
+      - name: Build
+        run: cat /dev/null | project/sbt checkLicenseHeaders scalafmtCheckAll

.github/workflows/release.yml

@@ -0,0 +1,31 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - v[0-9]+.[0-9]+.[0-9]+
+      - v[0-9]+.[0-9]+.[0-9]+-rc.[0-9]+
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 15
+      - uses: actions/cache@v2
+        with:
+          path: |
+            ~/.sbt
+            ~/.ivy2
+          key: ${{ runner.os }}-${{ hashFiles('**/*.sbt') }}
+      - name: Build
+        env:
+          bintrayUser: ${{ secrets.ORG_BINTRAY_USER }}
+          bintrayKey: ${{ secrets.ORG_BINTRAY_KEY }}
+        run: |
+          git fetch --unshallow --tags
+          cat /dev/null | project/sbt storeBintrayCredentials
+          cat /dev/null | project/sbt clean test publish bintrayRelease

.github/workflows/snapshot.yml

@@ -0,0 +1,30 @@
+name: Snapshot
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: 15
+      - uses: actions/cache@v2
+        with:
+          path: |
+            ~/.sbt
+            ~/.ivy2
+          key: ${{ runner.os }}-${{ hashFiles('**/*.sbt') }}
+      - name: Build
+        env:
+          bintrayUser: ${{ secrets.ORG_BINTRAY_USER }}
+          bintrayKey: ${{ secrets.ORG_BINTRAY_KEY }}
+        run: |
+          git fetch --unshallow --tags
+          cat /dev/null | project/sbt storeBintrayCredentials
+          cat /dev/null | project/sbt clean test publish

.travis.yml

@@ -9,7 +9,7 @@ matrix:
     scala: 2.13.3
     os: linux
     dist: xenial
-    env: BINTRAY_PUBLISH=true
+    env: BINTRAY_PUBLISH=false
 script:
 - ./scripts/buildViaTravis.sh
 env:

project/Bintray.scala

@@ -6,10 +6,9 @@ import bintray.BintrayKeys._
 object Bintray {
 
   lazy val now = System.currentTimeMillis
-  lazy val isPullRequest = sys.env.getOrElse("TRAVIS_PULL_REQUEST", "false") != "false"
 
   private def get(k: String): String = {
-    if (isPullRequest) s"dummy$k" else sys.env.getOrElse(s"bintray$k", s"missing$k")
+    sys.env.getOrElse(s"bintray$k", s"missing$k")
   }
 
   lazy val user = get("User")

project/BuildSettings.scala

@@ -56,8 +56,8 @@ object BuildSettings {
     },
     packageOptions in (Compile, packageBin) += Package.ManifestAttributes(
       "Build-Date"   -> java.time.Instant.now().toString,
-      "Build-Number" -> sys.env.getOrElse("TRAVIS_BUILD_NUMBER", "unknown"),
-      "Commit"       -> sys.env.getOrElse("TRAVIS_COMMIT", "unknown")
+      "Build-Number" -> sys.env.getOrElse("GITHUB_RUN_ID", "unknown"),
+      "Commit"       -> sys.env.getOrElse("GITHUB_SHA", "unknown")
     ),
     // scaladoc crashes on jdk11 using `-release 8` with assertion failure:
     // type AnyRef in java.lang

project/GitVersion.scala

@@ -26,7 +26,7 @@ object GitVersion {
     * Needs to check for "false", don't assume it will ever be set to "true".
     * http://docs.travis-ci.com/user/environment-variables/#Default-Environment-Variables
     */
-  private def isPullRequest: Boolean = sys.env.getOrElse("TRAVIS_PULL_REQUEST", "false") != "false"
+  private def isPullRequest: Boolean = sys.env.getOrElse("GITHUB_EVENT_NAME", "unknown") == "pull_request"
 
   /**
     * Bump the last git described version to use for the current snapshot. If it is a version branch
@@ -44,9 +44,18 @@ object GitVersion {
     }
   }
 
+  private def extractBranchName(dflt: String): String = {
+    val ref = sys.env.getOrElse("GITHUB_REF", dflt)
+    // Return last part if there is a '/', e.g. refs/heads/feature-branch-1. For
+    // this use-case we only care about master and version branches so it is ok
+    // if something like 'feature/branch/1' exacts just the '1'.
+    val parts = ref.split("/")
+    parts(parts.length - 1)
+  }
+
   lazy val settings: Seq[Def.Setting[_]] = Seq(
     version in ThisBuild := {
-      val branch = sys.env.getOrElse("TRAVIS_BRANCH", git.gitCurrentBranch.value)
+      val branch = extractBranchName(git.gitCurrentBranch.value)
       val branchVersion = if (branch == "master") baseVersion else branch
       git.gitDescribedVersion.value.getOrElse("0.1-SNAPSHOT") match {
         case _ if isPullRequest  => s"0.0.0-PULLREQUEST"