only publish after tests pass

.github/workflows/docker.yml

@@ -1,13 +0,0 @@
-name: Docker Push
-on: [push]
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@master
-    - name: Publish to Registry
-      uses: elgohr/Publish-Docker-Github-Action@master
-      with:
-        name: shish2k/shimmie2
-        username: ${{ secrets.DOCKER_USERNAME }}
-        password: ${{ secrets.DOCKER_PASSWORD }}

.github/workflows/test_and_publish.yml

@@ -1,9 +1,9 @@
-name: Unit Tests
+name: Test & Publish
 
 on: [push, pull_request]
 
 jobs:
-  build:
+  test:
     name: PHP ${{ matrix.php }} / DB ${{ matrix.database }}
     strategy:
       max-parallel: 3
@@ -74,3 +74,15 @@ jobs:
       run: |
           wget https://scrutinizer-ci.com/ocular.phar
           php ocular.phar code-coverage:upload --format=php-clover data/coverage.clover
+  publish:
+    runs-on: ubuntu-latest
+	needs: build
+	if: github.ref == 'refs/heads/master'
+    steps:
+    - uses: actions/checkout@master
+    - name: Publish to Registry
+      uses: elgohr/Publish-Docker-Github-Action@master
+      with:
+        name: shish2k/shimmie2
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}