Use variable for tag.

.github/workflows/default.yml

@@ -28,8 +28,6 @@ jobs :
         run : |
           git gc --prune=now --aggressive
 
-      - uses : nelonoel/branch-name@v1.0.1
-
       - name : Set up Docker Buildx
         uses : docker/setup-buildx-action@v1
 
@@ -120,20 +118,25 @@ jobs :
         run : |
           cat tests/_output/*
 
-      - name : Publish to Docker Hub (Main Branch)
-        if : env.BRANCH_NAME == 'main' && (github.event_name == 'push' || github.event_name == 'schedule')
-        uses : docker/build-push-action@v2
-        with :
-          push : true
-          tags : azuracast/azuracast_web_v2:latest
-          cache-from : type=local,src=/tmp/.buildx-cache
-          cache-to : type=local,dest=/tmp/.buildx-cache
+      - name : Get Branch Name
+        uses : nelonoel/branch-name@v1.0.1
+        if : github.event_name == 'push' || github.event_name == 'schedule'
+
+      - name : Determine Tag Name
+        if : github.event_name == 'push' || github.event_name == 'schedule'
+        id : tag
+        run : |
+          if [ $BRANCH_NAME == 'main' ]; then
+            echo "::set-output name=TAG::azuracast/azuracast_web_v2:latest"
+          else
+            echo "::set-output name=TAG::azuracast/azuracast_web_v2:${BRANCH_NAME}"
+          fi
 
       - name : Publish to Docker Hub (Main Branch)
-        if : env.BRANCH_NAME != 'main' && (github.event_name == 'push' || github.event_name == 'schedule')
+        if : github.event_name == 'push' || github.event_name == 'schedule'
         uses : docker/build-push-action@v2
         with :
           push : true
-          tags : azuracast/azuracast_web_v2:${{ env.BRANCH_NAME }}
+          tags : ${{ steps.tag.outputs.TAG }}
           cache-from : type=local,src=/tmp/.buildx-cache
           cache-to : type=local,dest=/tmp/.buildx-cache