add git extension (#34)

CHANGELOG.md

@@ -5,8 +5,8 @@
 - Adds Java 8 and 11 differentiation.
 - Supports Spark "3.1.3", "3.2.2", "3.3.0", "3.4.1".
 - Supports JupyterHub "1.5.0", "2.2.2", "2.3.1", "3.1.1".
+- Adds `jupyterlab-git` to improve ergonomics in pulling repos for source code.
 - Upgrade `miniconda` version to `py30_23.10.0-1` and added an improved package solver
-- Adds `jlab-enhanced/launcher` as `labextension` to improve launcher UI.
 - Change to Debian distro.
 - Adds a profile script so that all new user terminals will use
   `/opt/conda/default/bin` and `/opt/conda/bin` as part of `PATH`.

Dockerfile

@@ -21,6 +21,7 @@ ENV PATH="${CONDA_HOME}/bin:${PATH}"
 RUN set -euo pipefail && \
     apt-get update; \
     apt-get install -y wget; \
+    apt-get -y install git; \
     rm -rf /var/lib/apt/lists/*; \
     :
 
@@ -52,8 +53,8 @@ RUN conda install -y \
     :
 
 RUN pip3 install --upgrade 'SQLAlchemy<2.0.0' && \
-    conda install -c conda-forge jlab-enhanced-launcher && \
-    jupyter labextension disable @jupyterlab/launcher-extension && \
+    pip3 install -U jupyterlab jupyterlab-git && \
+    jupyter labextension install @jupyterlab/git && \
     :
 
 # Original jupyterhub also uses the path below