ci: also push docker to hub for pr

.github/workflows/build_docker.yml

@@ -38,7 +38,6 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Login to DockerHub
-        if: github.event_name == 'push'
         uses: docker/login-action@v3
         with:
           username: xhofe
@@ -50,7 +49,7 @@ jobs:
         with:
           context: .
           file: Dockerfile.ci
-          push: ${{ github.event_name == 'push' }}
+          push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           platforms: linux/amd64,linux/arm64,linux/arm/v7,linux/386,linux/arm/v6,linux/s390x
@@ -69,7 +68,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           file: Dockerfile.ffmpeg
-          push: ${{ github.event_name == 'push' }}
+          push: true
           tags: ${{ steps.meta-ffmpeg.outputs.tags }}
           labels: ${{ steps.meta-ffmpeg.outputs.labels }}
           platforms: linux/amd64,linux/arm64,linux/arm/v7,linux/386,linux/arm/v6,linux/s390x

.github/workflows/del-pr-docker.yml

@@ -0,0 +1,24 @@
+name: delete closed pr docker tag
+
+on:
+  pull_request:
+    types: [closed]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  del_docker_tag:
+    name: Build Docker
+    runs-on: ubuntu-latest
+    steps:
+
+      - name: Delete docker tag
+        id: del_docker_tag
+        uses: xhofe/del-docker-tag@main
+        with:
+          username: xhofe
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+          # token: ${{ secrets.DOCKER_TOKEN }}
+          tags: xhofe/alist:pr-${{ github.event.pull_request.number }},xhofe/alist:pr-${{ github.event.pull_request.number }}-ffmpeg