always push latest to origin

action.yml

@@ -20,6 +20,11 @@ inputs:
 runs:
   using: "composite"
   steps:
+    - uses: actions/checkout@v5
+      with:
+        fetch-depth: 0  # required to see all branches
+
+
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v2
 
@@ -33,6 +38,16 @@ runs:
     - name: Build and push
       uses: docker/build-push-action@v4
       with:
-        context: ${{ inputs.path }}
+        context: "{{defaultContext}}:${{ input.path }}"
         push: true
         tags: git.tmoron.fr/${{ inputs.name }}:latest
+
+    - name: push to latest branch
+      run: | 
+        if git ls-remote --exit-code --heads origin latest; then
+            git switch latest
+            git merge latest
+        else
+            git checkout -b latest
+        fi
+        git push origin latest