Cache Conda env (#47454)

* Cache Conda env

* python-version -> extra-specs

* python-version -> extra-specs

* Remove old broken conda caching

* Add cache-downloads: true

* Undo debug change

Author: jonashaag

.github/actions/build_pandas/action.yml

@@ -6,8 +6,8 @@ runs:
 
     - name: Environment Detail
       run: |
-        conda info
-        conda list
+        micromamba info
+        micromamba list
       shell: bash -el {0}
 
     - name: Build Pandas

.github/actions/setup-conda/action.yml

@@ -6,8 +6,8 @@ inputs:
   environment-name:
     description: Name to use for the Conda environment
     default: test
-  python-version:
-    description: Python version to install
+  extra-specs:
+    description: Extra packages to install
     required: false
   pyarrow-version:
     description: If set, overrides the PyArrow version in the Conda environment to the given string.
@@ -24,14 +24,13 @@ runs:
       if: ${{ inputs.pyarrow-version }}
 
     - name: Install ${{ inputs.environment-file }}
-      uses: conda-incubator/setup-miniconda@v2.1.1
+      uses: mamba-org/provision-with-micromamba@v12
       with:
         environment-file: ${{ inputs.environment-file }}
-        activate-environment: ${{ inputs.environment-name }}
-        python-version: ${{ inputs.python-version }}
-        channel-priority: ${{ runner.os == 'macOS' && 'flexible' || 'strict' }}
+        environment-name: ${{ inputs.environment-name }}
+        extra-specs: ${{ inputs.extra-specs }}
         channels: conda-forge
-        mamba-version: "0.24"
-        use-mamba: true
-        use-only-tar-bz2: true
+        channel-priority: ${{ runner.os == 'macOS' && 'flexible' || 'strict' }}
         condarc-file: ci/condarc.yml
+        cache-env: true
+        cache-downloads: true

.github/workflows/asv-bot.yml

@@ -33,12 +33,6 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Cache conda
-        uses: actions/cache@v3
-        with:
-          path: ~/conda_pkgs_dir
-          key: ${{ runner.os }}-conda-${{ hashFiles('${{ env.ENV_FILE }}') }}
-
         # Although asv sets up its own env, deps are still needed
         # during discovery process
       - name: Set up Conda

.github/workflows/code-checks.yml

@@ -52,12 +52,6 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Cache conda
-      uses: actions/cache@v3
-      with:
-        path: ~/conda_pkgs_dir
-        key: ${{ runner.os }}-conda-${{ hashFiles('${{ env.ENV_FILE }}') }}
-
     - name: Set up Conda
       uses: ./.github/actions/setup-conda
 
@@ -117,12 +111,6 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Cache conda
-      uses: actions/cache@v3
-      with:
-        path: ~/conda_pkgs_dir
-        key: ${{ runner.os }}-conda-${{ hashFiles('${{ env.ENV_FILE }}') }}
-
     - name: Set up Conda
       uses: ./.github/actions/setup-conda
 

.github/workflows/sdist.yml

@@ -62,9 +62,10 @@ jobs:
     - name: Set up Conda
       uses: ./.github/actions/setup-conda
       with:
-        environment-file: ""
+        environment-file: false
         environment-name: pandas-sdist
-        python-version: ${{ matrix.python-version }}
+        extra-specs: |
+          python =${{ matrix.python-version }}
 
     - name: Install pandas from sdist
       run: |

.github/workflows/ubuntu.yml

@@ -134,15 +134,6 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Cache conda
-      uses: actions/cache@v3
-      env:
-        CACHE_NUMBER: 0
-      with:
-        path: ~/conda_pkgs_dir
-        key: ${{ runner.os }}-conda-${{ env.CACHE_NUMBER }}-${{
-          hashFiles('${{ env.ENV_FILE }}') }}
-
     - name: Extra installs
       # xsel for clipboard tests
       run: sudo apt-get update && sudo apt-get install -y xsel ${{ env.EXTRA_APT }}