chore[github]: separate pr and release actions

Author: sk33z3r

.github/workflows/image-push.yml .github/workflows/image-push-main.yml.github/workflows/image-push.yml renamed to .github/workflows/image-push-main.yml

@@ -5,8 +5,6 @@ on:
     branches: [ "main" ]
     # Publish semver tags as releases.
     tags: [ 'v*.*.*' ]
-  pull_request:
-    branches: [ "main" ]
 
 env:
   HUB_TAG: ${{ github.ref_name }}

.github/workflows/image-push-pull.yml

@@ -0,0 +1,28 @@
+name: Docker Registry CI
+
+on:
+  pull_request:
+    branches: [ "main" ]
+
+env:
+  HUB_TAG: ${{ github.base_ref }}
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.HUB_USER }}
+          password: ${{ secrets.HUB_KEY }}
+      -
+        name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          push: true
+          tags: sk33z3r/loopygen:${{ env.HUB_TAG }}