Cache choco packages to work around connectivity issues (#3536)

* Cache choco packages to work around connectivity issues

Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* Download file as cache key if needed

Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* Skip choco if gather_dumps is false

Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* Skip choco if gather_dumps is false

Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* Apply suggestions from code review

Co-authored-by: Dave Thaler <dthaler1968@gmail.com>

---------

Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>
Co-authored-by: Alan Jowett <alan.jowett@microsoft.com>
Co-authored-by: Dave Thaler <dthaler1968@gmail.com>

.github/workflows/reusable-test.yml

@@ -109,6 +109,42 @@ jobs:
       with:
         ref: ${{ github.event.workflow_run.head_branch }}
 
+    # Check if .github/workflows/reusable-test.yml exists locally.
+    - name: Check for .github/workflows/reusable-test.yml
+      # Check for test logs even if the workflow failed.
+      uses: andstor/file-existence-action@076e0072799f4942c8bc574a82233e1e4d13e9d6
+      if: (inputs.gather_dumps == true) && (steps.skip_check.outputs.should_skip != 'true')
+      id: check_reusable_test_locally
+      with:
+        files: .github/workflows/reusable-test.yml
+
+    # Check out just this file if code hasn't been checked out yet.
+    - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
+      if: (steps.check_reusable_test_locally.outputs.files_exists != 'true') && (steps.skip_check.outputs.should_skip != 'true')
+      with:
+        sparse-checkout: |
+          .github/workflows/reusable-test.yml
+        sparse-checkout-cone-mode: false
+
+    - name: Set up choco cache folder
+      # Set the choco cache to a local folder so that it can be cached.
+      if: (inputs.gather_dumps == true) && (steps.skip_check.outputs.should_skip != 'true')
+      id: choco-cache
+      run: |
+        mkdir ${{github.workspace}}\choco_cache
+        choco config set --name cacheLocation --value ${{github.workspace}}\choco_cache
+
+    - name: Cache choco packages
+      # Add cache entry for any choco packages that are installed.
+      # The cache key is based on the hash of this file so if any choco packages are added or removed, the cache will be invalidated.
+      if: (inputs.gather_dumps == true) && (steps.skip_check.outputs.should_skip != 'true')
+      uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9
+      env:
+        cache-name: cache-choco-packages
+      with:
+        path: ${{github.workspace}}\choco_cache
+        key: ${{ hashFiles('.github/workflows/reusable-test.yml') }}
+
     - name: Install ProcDump
       id: install_procdump
       if: (inputs.gather_dumps == true) && (steps.skip_check.outputs.should_skip != 'true')