Adding github actions for PR-build and merge-build

Author: jdcasey

.github/workflows/merge-build.yml

@@ -0,0 +1,42 @@
+# This workflow will build a Java project with Maven
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+
+name: Merge / Push Build
+
+on: [push]
+
+jobs:
+  build-on-push:
+
+    runs-on: ubuntu-latest
+
+    permissions: 
+      contents: read
+      packages: write
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up cache for ~./m2/repository
+      uses: actions/cache@v2.1.1
+      with:
+        path: ~/.m2/repository
+        key: maven-${{ hashFiles('**/pom.xml') }}
+        restore-keys: |
+          maven-
+
+    - name: Set up JDK
+      uses: actions/setup-java@v2
+      with:
+        java-version: '8'
+        distribution: 'adopt'
+
+    - name: maven-settings-xml-action
+      uses: whelk-io/maven-settings-xml-action@v14
+      if: ${{ github.event.repository.fork == false }}
+      with:
+        repositories: '[{ "id": "sonatype", "url": "https://oss.sonatype.org/content/repositories/snapshots/", "releases": {"enabled": "false"}, "snapshots": {"enabled": "true" }}]'
+        servers: '[{ "id": "sonatype", "username": "${{ secrets.SONATYPE_BOT_USERNAME}}", "password": "${{ secrets.SONATYPE_BOT_TOKEN}}" }]'
+
+    - name: "Maven Build"
+      run: mvn -B -e verify

.github/workflows/pr-build.yml

@@ -0,0 +1,36 @@
+# This workflow will build a Java project with Maven
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+
+name: PR Build
+
+on: [pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up cache for ~./m2/repository
+      uses: actions/cache@v2.1.1
+      with:
+        path: ~/.m2/repository
+        key: maven-${{ hashFiles('**/pom.xml') }}
+        restore-keys: |
+          maven-
+
+    - name: Set up JDK
+      uses: actions/setup-java@v2
+      with:
+        java-version: '8'
+        distribution: 'adopt'
+
+    - name: maven-settings-xml-action
+      uses: whelk-io/maven-settings-xml-action@v14
+      with:
+        repositories: '[{ "id": "sonatype", "url": "https://oss.sonatype.org/content/repositories/snapshots/", "releases": {"enabled": "false"}, "snapshots": {"enabled": "true" }}]'
+
+    - name: Build with Maven
+      run: mvn -B -e verify