Use relative path to server root (jupyterlab#939)

* Set path as URL path fragment

* Pass path in uri

* API calls using relative path

* Remove server root from front end

* Fix unit tests

* Test fix jupyterlab#775

* Test fix jupyterlab#684

* Clean up

* Some docs

* Fix CI

* Avoid using broken @jupyterlab/testutils

* Resolve conflict

* Fix lru_cache for py<3.8

* Fix jest tests

* Fix for python 3.6

Author: fcollonval

.github/workflows/build.yml

@@ -59,12 +59,12 @@ jobs:
             ${{ runner.os }}-yarn-
 
       - name: Install dependencies
-        run: python -m pip install -U  jupyter_packaging~=0.7.9 jupyterlab~=3.0 pip wheel
+        run: python -m pip install -U jupyter_packaging~=0.7.9 jupyterlab~=3.0 pip wheel
       - name: Test the extension
         run: |
           jlpm
           jlpm run eslint:check
-          python -m pip install -e .[dev]
+          python -m pip install -e .[dev,tests]
 
           # Python formatting checks
           black . --check

jupyterlab_git/__init__.py

@@ -51,8 +51,7 @@ def _load_jupyter_server_extension(server_app):
         JupyterLab application instance
     """
     config = JupyterLabGit(config=server_app.config)
-    git = Git(server_app.web_app.settings["contents_manager"], config)
-    server_app.web_app.settings["git"] = git
+    server_app.web_app.settings["git"] = Git(config)
     setup_handlers(server_app.web_app)