ControlNet API (#162)

* ControlNet API

* update cache key

* nits

* disable controlnet tests

.github/workflows/run_tests.yaml

@@ -52,6 +52,18 @@ jobs:
               curl -Lo "$filename" "$url"
             fi
           done
+      # - name: Download ControlNet models
+      #   run: |
+      #     declare -a urls=(
+      #       "https://huggingface.co/lllyasviel/ControlNet-v1-1/resolve/main/control_v11p_sd15_canny.pth"
+      #     )
+
+      #     for url in "${urls[@]}"; do
+      #       filename="models/ControlNet/${url##*/}"  # Extracts the last part of the URL
+      #       if [ ! -f "$filename" ]; then
+      #         curl -Lo "$filename" "$url"
+      #       fi
+      #     done
       - name: Start test server
         run: >
           python -m coverage run
@@ -71,6 +83,16 @@ jobs:
         run: |
           wait-for-it --service 127.0.0.1:7860 -t 20
           python -m pytest -vv --junitxml=test/results.xml --cov . --cov-report=xml --verify-base-url test
+      # TODO(huchenlei): Enable ControlNet tests. Currently it is too slow to run these tests on CPU with
+      # real SD model. We need to find a way to load empty SD model.
+      # - name: Run ControlNet tests
+      #   run: >
+      #     python -m pytest
+      #     --junitxml=test/results.xml
+      #     --cov ./extensions-builtin/sd_forge_controlnet
+      #     --cov-report=xml
+      #     --verify-base-url
+      #     ./extensions-builtin/sd_forge_controlnet/tests
       - name: Kill test server
         if: always()
         run: curl -vv -XPOST http://127.0.0.1:7860/sdapi/v1/server-stop && sleep 10