BLD: Refresh gitpod build files

.gitpod.yml

@@ -6,13 +6,17 @@
 # images for gitpod pandas are in https://hub.docker.com/r/pandas/pandas-gitpod/tags
 # we're using the Dockerfile in the base of the repo
 image:
-  file: Dockerfile
+   file: gitpod/gitpod.Dockerfile
 tasks:
   - name: Prepare development environment
     init: |
       mkdir -p .vscode
       cp gitpod/settings.json .vscode/settings.json
       git fetch --tags
+      conda init
+      source ~/.bashrc
+      conda env update --file environment.yml --prune
+      conda activate pandas-dev
       python -m pip install -ve . --no-build-isolation --config-settings editable-verbose=true
       pre-commit install
     command: |

gitpod/gitpod.Dockerfile

@@ -1,48 +1,35 @@
 # Doing a local shallow clone - keeps the container secure
 # and much slimmer than using COPY directly or making a
 # remote clone
-ARG BASE_CONTAINER="pandas/pandas-dev:latest"
 FROM gitpod/workspace-base:latest as clone
 
-# the clone should be deep enough for versioneer to work
-RUN git clone https://github.com/pandas-dev/pandas --depth 12 /tmp/pandas
-
-# -----------------------------------------------------------------------------
-# Using the pandas-dev Docker image as a base
-# This way, we ensure we have all the needed compilers and dependencies
-# while reducing the build time
-FROM ${BASE_CONTAINER} as build
-
-# -----------------------------------------------------------------------------
 USER root
-
-# -----------------------------------------------------------------------------
-# ---- ENV variables ----
-# ---- Directories needed ----
-ENV WORKSPACE=/workspace/pandas/ \
-    CONDA_ENV=pandas-dev
-
-# Allows this micromamba.Dockerfile to activate conda environments
-SHELL ["/bin/bash", "--login", "-o", "pipefail", "-c"]
-
-# Copy over the shallow clone
-COPY --from=clone --chown=gitpod /tmp/pandas ${WORKSPACE}
-
-# Everything happens in the /workspace/pandas directory
-WORKDIR ${WORKSPACE}
-
-# Build pandas to populate the cache used by ccache
-RUN git config --global --add safe.directory /workspace/pandas
-RUN conda activate ${CONDA_ENV} && \
-    python -m pip install -e . --no-build-isolation && \
-    python setup.py build_ext --inplace && \
-    ccache -s
-
-# Gitpod will load the repository into /workspace/pandas. We remove the
-# directory from the image to prevent conflicts
-RUN rm -rf ${WORKSPACE}
-
-# -----------------------------------------------------------------------------
-# Always return to non privileged user
-RUN chown -R gitpod:gitpod /home/gitpod/.cache/
+# Install base utilities
+RUN apt-get update \
+    && apt-get install -y build-essential \
+    && apt-get install -y wget \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install miniconda
+ENV CONDA_DIR /opt/conda
+RUN wget --quiet https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O ~/miniconda.sh && \
+    /bin/bash ~/miniconda.sh -b -p /opt/conda
+
+# Put conda in path so we can use conda activate
+ENV PATH=$CONDA_DIR/bin:$PATH
+
+# init conda
+RUN conda init
+
+# Use the speedy libmamba solver
+RUN conda install -n base conda-libmamba-solver
+RUN conda config --set solver libmamba
+
+# # -----------------------------------------------------------------------------
+# # Always return to non privileged user
+RUN chown -R gitpod:gitpod /opt/conda/pkgs
+RUN chown -R gitpod:gitpod /opt/conda/envs
+RUN chown -R gitpod:gitpod /home/gitpod/.conda
+RUN chown -R gitpod:gitpod /home/gitpod/.cache
 USER gitpod