Travis -> GitHub Actions

Feel free to revert, but see https://talk.openmrs.org/t/ci-within-openmrs-bamboo-vs-travis-vs-github-actions-vs-azure-pipelines/31252/6

.github/workflows/maven.yml

@@ -0,0 +1,56 @@
+# this build is designed to replicate the Travis CI workflow
+name: Build with Maven
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        platform: [ ubuntu-latest ]
+        java-version: [ 8 ]
+
+    runs-on: ${{ matrix.platform }}
+    env:
+      PLATFORM: ${{ matrix.platform }}
+      JAVA_VERSION: ${{ matrix.java-version }}
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK
+        uses: actions/setup-java@v1
+        with:
+          java-version: ${{ matrix.java-version }}
+      - name: Cache local Maven repository
+        uses: actions/cache@v2
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+      - name: Install dependencies
+        run: mvn clean install -DskipTests=true -Dmaven.javadoc.skip=true --batch-mode --show-version --file pom.xml
+      - name: Build with Maven
+        run: mvn test --batch-mode --file pom.xml
+      # this is necessary to populate the environment variables for Coveralls properly
+      - name: Set branch name and PR number
+        id: refs
+        env:
+          BRANCH_NAME_OR_REF: ${{ github.head_ref || github.ref }}
+        run: |
+          echo "::set-output name=branch_name::${BRANCH_NAME_OR_REF#refs/heads/}"
+          echo "::set-output name=pr_number::$(jq --raw-output .pull_request.number "$GITHUB_EVENT_PATH")"
+      - name: Update coverage
+        env:
+          CI_NAME: Github
+          CI_BUILD_NUMBER: ${{ github.run_id }}
+          CI_BUILD_URL: https://github.com/${{ github.repository }}/commit/${{ github.event.after }}/checks
+          CI_BRANCH: ${{ steps.refs.outputs.branch_name }}
+          CI_PULL_REQUEST: ${{ steps.refs.outputs.pr_number }}
+        run: mvn jacoco:report coveralls:report --batch-mode --file pom.xml --no-transfer-progress -DrepoToken=${{ secrets.COVERALLS_TOKEN }}
+

.gitignore

@@ -62,7 +62,7 @@ nb-configuration.xml
 .*
 !.gitignore
 !.gitattributes
-!.travis.yml
+!.github
 *~
 #############