test si way of installing datalad

Author: zm711

.github/workflows/io-test.yml

@@ -76,7 +76,7 @@ jobs:
         # restore-key hits should result in `cache-hit` == 'false'
         #if: steps.cache-conda-env.outputs.cache-hit != 'true'
         run: |
-          conda install datalad pip numpy=${{ matrix.numpy-version }} -c conda-forge
+          conda install pip numpy=${{ matrix.numpy-version }} -c conda-forge
         # this command is for updating cache. We are resting removal.
         # conda env update --name neo-test-env-${{ matrix.python-version }} --file environment_testing.yml --prune
 
@@ -85,6 +85,20 @@ jobs:
           git config --global user.email "neo_ci@fake_mail.com"
           git config --global user.name "neo CI"
 
+      - name: Install git-annex
+        shell: bash
+        run: |
+          pip install datalad-installer
+          wget https://downloads.kitenet.net/git-annex/linux/current/git-annex-standalone-amd64.tar.gz
+          mkdir /home/runner/work/installation
+          mv git-annex-standalone-amd64.tar.gz /home/runner/work/installation/
+          workdir=$(pwd)
+          cd /home/runner/work/installation
+          tar xvzf git-annex-standalone-amd64.tar.gz
+          echo "$(pwd)/git-annex.linux" >> $GITHUB_PATH
+          cd $workdir
+          git config --global filter.annex.process "git-annex filter-process"  # recommended for efficiency
+          
       - name: Python version
         run: |
           which python