use miniforge (#17)

using miniforge in CI

.github/workflows/ci.yml

@@ -1,16 +1,20 @@
 name: Sharpy CI
 run-name: ${{ github.actor }} CI for sharpy
 permissions: read-all
+
 on:
   push:
     branches:
       - main
   pull_request:
+
 defaults:
   run:
-    shell: bash
+    shell: bash -l {0}
+
 env:
   IMEX_CACHE_NUMBER: 4  # Increase to reset cache
+
 jobs:
   build_and_test:
     runs-on: ubuntu-22.04
@@ -25,8 +29,6 @@ jobs:
         run: |
           INSTALLED_DIR="$(realpath $GITHUB_WORKSPACE)/third_party/install"
           echo "INSTALLED_DIR=$INSTALLED_DIR" >> "$GITHUB_ENV"
-          CONDA_ROOT="$(realpath $GITHUB_WORKSPACE/..)/install/miniconda3"
-          echo "CONDA_ROOT=$CONDA_ROOT" >> "$GITHUB_ENV"
           echo 'IMEX_SHA<<EOF' >> $GITHUB_ENV
           cat imex_version.txt >> $GITHUB_ENV
           echo 'EOF' >> $GITHUB_ENV
@@ -36,29 +38,17 @@ jobs:
         with:
           path: third_party/install/**
           key: ${{ runner.os }}-build-imex-${{ env.IMEX_CACHE_NUMBER }}-${{ env.IMEX_SHA }}
-      - name: Miniconda
-        run: |
-          env
-          rm -rf $CONDA_ROOT
-          cd $GITHUB_WORKSPACE/..
-          rm -f Miniconda3-*.sh
-          # CPKG=Miniconda3-latest-Linux-x86_64.sh
-          CPKG=Miniconda3-py311_24.3.0-0-Linux-x86_64.sh
-          wget -q https://repo.anaconda.com/miniconda/$CPKG
-          bash $CPKG -u -b -f -p $CONDA_ROOT
-          export PATH=$CONDA_ROOT/condabin:$CONDA_ROOT/bin:${PATH}
-          eval "$($CONDA_ROOT/bin/python -m conda shell.bash hook)"
-          conda install -c conda-forge --override-channels python git-lfs 'conda-build<=24.1.2'
-          # aahhhh bug in conda somewhere
-          sed -i "s,\#\!/usr/bin/env python,#\!$CONDA_ROOT/bin/python," $CONDA_ROOT/*bin/conda
-          conda clean --all -y
+      - name: Setup Miniforge
+        uses: conda-incubator/setup-miniconda@v3
+        with:
+          miniforge-version: latest
+          # environment-file: etc/example-environment.yml
       - name: Build SHARPY
         run: |
           env
-          export PATH=$CONDA_ROOT/condabin:$CONDA_ROOT/bin:${PATH}
-          eval "$($CONDA_ROOT/bin/python -m conda shell.bash hook)"
+          conda install -y conda-build
           cd conda-recipe
-          conda build --numpy 1.26 -c conda-forge --override-channels --no-anaconda-upload --no-test .
+          conda build --numpy 1.26 --no-anaconda-upload --no-test .
       - name: Save IMEX cache
         uses: actions/cache/save@v3
         if: steps.cache-imex.outputs.cache-hit != 'true'
@@ -67,14 +57,10 @@ jobs:
           key: ${{ runner.os }}-build-imex-${{ env.IMEX_CACHE_NUMBER }}-${{ env.IMEX_SHA }}
       - name: Install SHARPY
         run: |
-          export PATH=$CONDA_ROOT/condabin:$CONDA_ROOT/bin:${PATH}
-          eval "$($CONDA_ROOT/bin/python -m conda shell.bash hook)"
-          conda create --use-local -c conda-forge --override-channels -n sharpy -v sharpy pytest pytest-timeout
+          conda create --use-local -c file://${CONDA_PREFIX}/conda-bld/ -n sharpy -v sharpy pytest pytest-timeout
           conda activate sharpy
       - name: Test SHARPY (pytest)
         run: |
-          export PATH=$CONDA_ROOT/condabin:$CONDA_ROOT/bin:${PATH}
-          eval "$($CONDA_ROOT/bin/python -m conda shell.bash hook)"
           conda activate sharpy
           cd test
           pytest . -v -s --timeout=30
@@ -85,8 +71,6 @@ jobs:
           cd -
       - name: Run examples
         run: |
-          export PATH=$CONDA_ROOT/condabin:$CONDA_ROOT/bin:${PATH}
-          eval "$($CONDA_ROOT/bin/python -m conda shell.bash hook)"
           conda activate sharpy
           cd examples
           SHARPY_FALLBACK=numpy python -u ./stencil-2d.py 5 1024 star 4