fix(cicd): broken tag extraction

.gitea/workflows/build.yml

@@ -3,6 +3,9 @@ name: Build
 on:
   schedule:
     - cron: "0 0 * * 1"
+  push:
+    tags:        
+      - 'manual_build'
 
 jobs:
   build:
@@ -15,30 +18,38 @@ jobs:
         run: |
           git clone https://github.com/ONLYOFFICE/DocumentServer
           cd DocumentServer
-          echo "docker_tag=$(git describe --tags --abbrev=0 | cut -d 'v' -f2-") >> GITHUB_OUTPUT
+          echo "docker_tag=$(git describe --tags --abbrev=0 | cut -d 'v' -f2-)" >> GITHUB_OUTPUT
+          docker_tag=$(git describe --tags --abbrev=0 | cut -d 'v' -f2-)
+          echo $docker_tag
+          if curl --silent -f -lSL "https://hub.docker.com/v2/repositories/jiriks74/onlyoffice-documentserver/tags/$(docker_tag)" > /dev/null; then exit 1; fi
           cd .. && rm -rf DocumentServer
         shell: bash
       
       - name: Install Docker
+        if: steps.extract-version.conclusion == 'success'
         run: |
           apt-get update
           apt-get install docker.io -y          
 
       - name: Login to DockerHub
+        if: steps.extract-version.conclusion == 'success'
         uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Set up QEMU
+        if: steps.extract-version.conclusion == 'success'
         uses: docker/setup-qemu-action@v2
       - name: Set up Docker Buildx
+        if: steps.extract-version.conclusion == 'success'
         uses: docker/setup-buildx-action@v1
         with:
           # driver-opts: network=host
           platforms: linux/amd64,linux/arm64
 
       - name: Build and push image
+        if: steps.extract-version.conclusion == 'success'
         uses: docker/build-push-action@v2
         with:
           push: true
@@ -46,3 +57,11 @@ jobs:
           platforms: linux/amd64,linux/arm64
           context: .
           file: ./Dockerfile
+
+      - name: Image already built
+        id: image-built
+        if: steps.extract-version.conclusion == 'failure'
+        run: |
+          echo "Image was already built and uploaded"
+          exit 0
+        shell: bash