Drop support for nbdime diffs

.github/workflows/build.yml

@@ -35,9 +35,6 @@ jobs:
         set -eux
         python -m pip install .[test]
 
-        jupyter server extension list
-        jupyter server extension list 2>&1 | grep -ie "jupyterlab_cell_diff.*OK"
-
         jupyter labextension list
         jupyter labextension list 2>&1 | grep -ie "jupyterlab-cell-diff.*OK"
         python -m jupyterlab.browser_check
@@ -79,10 +76,6 @@ jobs:
 
         pip install "jupyterlab>=4.0.0,<5" jupyterlab_cell_diff*.whl
 
-
-        jupyter server extension list
-        jupyter server extension list 2>&1 | grep -ie "jupyterlab_cell_diff.*OK"
-
         jupyter labextension list
         jupyter labextension list 2>&1 | grep -ie "jupyterlab-cell-diff.*OK"
         python -m jupyterlab.browser_check --no-browser-test

CONTRIBUTING.md

@@ -15,8 +15,6 @@ The `jlpm` command is JupyterLab's pinned version of
 pip install -e "."
 # Link your development version of the extension with JupyterLab
 jupyter labextension develop . --overwrite
-# Server extension must be manually installed in develop mode
-jupyter server extension enable jupyterlab_cell_diff
 # Rebuild extension Typescript source after making changes
 jlpm build
 ```
@@ -42,7 +40,6 @@ jupyter lab build --minimize=False
 
 ```bash
 # Server extension must be manually disabled in develop mode
-jupyter server extension disable jupyterlab_cell_diff
 pip uninstall jupyterlab_cell_diff
 ```
 

README.md

@@ -32,19 +32,12 @@ jupyter labextension develop . --overwrite
 
 ### Commands
 
-The extension provides several commands:
+The extension provides a command to show cell diffs:
 
 - `jupyterlab-cell-diff:show-codemirror` - Show diff using `@codemirror/merge`
-- `jupyterlab-cell-diff:show-nbdime` - Show diff using NBDime
-
-### Use with `@codemirror/merge`
 
 https://github.com/user-attachments/assets/0dacd7f0-5963-4ebe-81da-2958f0117071
 
-### Use with NBDime
-
-https://github.com/user-attachments/assets/87e93eab-ad67-468c-b228-f5a0e93f8bea
-
 ### Programmatic Usage
 
 ```typescript
@@ -53,12 +46,6 @@ app.commands.execute('jupyterlab-cell-diff:show-codemirror', {
   originalSource: 'print("Hello")',
   newSource: 'print("Hello, World!")'
 });
-
-app.commands.execute('jupyterlab-cell-diff:show-nbdime', {
-  cellId: 'cell-id',
-  originalSource: 'print("Hello")',
-  newSource: 'print("Hello, World!")'
-});
 ```
 
 ## Uninstall
@@ -71,15 +58,7 @@ pip uninstall jupyterlab_cell_diff
 
 ## Troubleshoot
 
-If you are seeing the frontend extension, but it is not working, check
-that the server extension is enabled:
-
-```bash
-jupyter server extension list
-```
-
-If the server extension is installed and enabled, but you are not seeing
-the frontend extension, check the frontend extension is installed:
+To check the frontend extension is installed:
 
 ```bash
 jupyter labextension list

jupyterlab_cell_diff/__init__.py

@@ -5,32 +5,10 @@
     # in editable mode with pip. It is highly recommended to install
     # the package from a stable release or in editable mode: https://pip.pypa.io/en/stable/topics/local-project-installs/#editable-installs
     import warnings
+
     warnings.warn("Importing 'jupyterlab_cell_diff' outside a proper installation.")
     __version__ = "dev"
-from .handlers import setup_handlers
 
 
 def _jupyter_labextension_paths():
-    return [{
-        "src": "labextension",
-        "dest": "jupyterlab-cell-diff"
-    }]
-
-
-def _jupyter_server_extension_points():
-    return [{
-        "module": "jupyterlab_cell_diff"
-    }]
-
-
-def _load_jupyter_server_extension(server_app):
-    """Registers the API handler to receive HTTP requests from the frontend extension.
-
-    Parameters
-    ----------
-    server_app: jupyterlab.labapp.LabApp
-        JupyterLab application instance
-    """
-    setup_handlers(server_app.web_app)
-    name = "jupyterlab_cell_diff"
-    server_app.log.info(f"Registered {name} server extension")
+    return [{"src": "labextension", "dest": "jupyterlab-cell-diff"}]

package.json

@@ -70,8 +70,7 @@
         "@jupyterlab/ui-components": "^4.0.0",
         "@lumino/widgets": "^2.0.0",
         "codemirror": "^6.0.2",
-        "jupyterlab-cell-input-footer": "^0.3.0",
-        "nbdime": "^7.0.1"
+        "jupyterlab-cell-input-footer": "^0.3.0"
     },
     "devDependencies": {
         "@jupyterlab/builder": "^4.0.0",

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "hatchling.build"
 name = "jupyterlab_cell_diff"
 readme = "README.md"
 license = { file = "LICENSE" }
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 classifiers = [
     "Framework :: Jupyter",
     "Framework :: Jupyter :: JupyterLab",
@@ -16,15 +16,13 @@ classifiers = [
     "License :: OSI Approved :: BSD License",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
 ]
 dependencies = [
-    "nbdime",
-    "jupyter_server>=2.4.0,<3",
     "jupyterlab-eventlistener>=0.4.0,<0.5",
     "jupyterlab-cell-input-footer>=0.3.1,<0.4"
 ]
@@ -43,7 +41,6 @@ exclude = [".github", "binder"]
 [tool.hatch.build.targets.wheel.shared-data]
 "jupyterlab_cell_diff/labextension" = "share/jupyter/labextensions/jupyterlab-cell-diff"
 "install.json" = "share/jupyter/labextensions/jupyterlab-cell-diff/install.json"
-"jupyter-config/server-config" = "etc/jupyter/jupyter_server_config.d"
 
 [tool.hatch.build.hooks.version]
 path = "jupyterlab_cell_diff/_version.py"