Initial setup for GitHub Actions

Author: ddworak

.github/workflows/ci.yml

@@ -0,0 +1,91 @@
+name: CI
+
+env:
+  JAVA_OPTS: "-Dfile.encoding=UTF-8 -Xms1024M -Xmx3072M -Xss4M -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI -XX:+UseJVMCICompiler"
+
+on:
+  push:
+    branches: '*'
+    tags: [ "v[0-9]+*" ]
+  pull_request:
+    # avoid duplicate checks (push & PR) further in the review process
+    types: [opened]
+
+jobs:
+  test:
+    name: Run tests
+    runs-on: ubuntu-20.04 # https://github.com/actions/virtual-environments/blob/main/images/linux/Ubuntu2004-README.md
+    strategy:
+      fail-fast: false
+      matrix:
+        scala: [ 2.12.14, 2.13.6 ]
+        command: [ test ]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Cache sbt
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.sbt
+            ~/.ivy2/cache
+            ~/.coursier/cache
+            ~/.cache/coursier
+          key: ${{ runner.os }}-sbt-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}-${{ hashFiles('project/Dependencies.scala') }}
+          restore-keys: ${{ runner.os }}-sbt-
+      - name: Set up JDK 11
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+      - name: Cache npm
+        uses: actions/cache@v2
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: ${{ runner.os }}-node-
+      - name: Set up node
+        uses: actions/setup-node@v2-beta
+      - name: Run tests
+        run: sbt "set concurrentRestrictions in Global += Tags.limit(ScalaJSTags.Link, 1)" ++${{ matrix.scala }} ${{ matrix.command }}
+
+  publish:
+    name: Publish to Sonatype
+    # only run on tag push
+    if: github.event_name == 'push' && (startsWith(github.ref, 'refs/tags/v'))
+    needs: [ test ]
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Cache sbt
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.sbt
+            ~/.ivy2/cache
+            ~/.coursier/cache
+            ~/.cache/coursier
+          key: ${{ runner.os }}-sbt-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}-${{ hashFiles('project/Dependencies.scala') }}
+          restore-keys: ${{ runner.os }}-sbt-
+      - name: Set up JDK 11
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+      - name: Get version
+        id: get_tag_name
+        run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/v}
+      - name: Import GPG key
+        env:
+          #exported via `gpg -a --export-secret-keys <key> | cat -e | sed 's/\$/\\n/g' | xclip -selection clipboard` and added to org secrets
+          SONATYPE_GPG: ${{ secrets.SONATYPE_GPG }}
+        run: echo -e $SONATYPE_GPG | gpg --import -
+      - name: Publish artifacts
+        env:
+          SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+          SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
+        run: sbt 'set version in ThisBuild := "${{ steps.get_tag_name.outputs.VERSION }}"' +publishSigned
+      - name: Release Sonatype bundle
+        #https://github.com/xerial/sbt-sonatype#publishing-your-artifact
+        if: ${{ !endsWith(steps.get_tag_name.outputs.VERSION, 'SNAPSHOT') }}
+        env:
+          SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+          SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
+        run: sbt 'set version in ThisBuild := "${{ steps.get_tag_name.outputs.VERSION }}"' sonatypeBundleRelease