ci: Try with simpleindex

.github/workflows/release-linux.yml

@@ -67,7 +67,7 @@ jobs:
           path: dist
 
   test:
-    name: "Test ${{ matrix.build }} wheels on ${{ matrix.arch }}"
+    name: "Test ${{ matrix.python-version }} wheels on ${{ matrix.os }}"
     needs: "build-wheel"
     runs-on: ${{ matrix.os }}
     strategy:
@@ -88,13 +88,31 @@ jobs:
           pattern: dist-*
           merge-multiple: true
           path: /tmp/dist
-      - name: setup
+      - name: setup and install wheel
         run: |
           python -m pip install -U pip
-          python -m pip install wheel simple503
-          python -m simple503 --sort --base-url /tmp/dist /tmp/dist
-      - name: install wheel
-        run: python -m pip install -i file:///tmp/dist proxsuite
+          python -m pip install wheel simpleindex
+          # Since it's dangerous to use --extra-index-url we use simpleindex
+          # to mirror PyPI but use the local proxsuite packages
+          cat <<EOF > configuration.toml
+          # Serve local files for packages with prefix "proxsuite".
+          [routes."proxsuite"]
+          source = "path"
+          to = "/tmp/dist"
+
+          # Otherwise use PyPI.
+          [routes."{project}"]
+          source = "http"
+          to = "https://pypi.org/simple/{project}/"
+
+          [server]
+          host = "127.0.0.1"
+          port = 8000
+          EOF
+          python -m simpleindex ./configuration.toml &
+          # Wait for simpleindex server
+          curl --head -X GET --retry 5 --retry-connrefused --retry-delay 1 http://127.0.0.1:8000
+          python -m pip install -i http://127.0.0.1:8000 proxsuite
       - name: test module
         run: python -c "import proxsuite"
         env: