Also test packages dir (#5)

* Also test packages dir

* Fix passing of newlines into path

.github/workflows/CI.yml

@@ -6,9 +6,11 @@ on:
       - main
     paths:
       - 'action.yml'
+      - '.github/**'
   pull_request:
     paths:
       - 'action.yml'
+      - '.github/**'
 
 jobs:
   generate-key:
@@ -21,9 +23,7 @@ jobs:
       run: 'write("random.txt", string(rand(10)))'
     - name: Set cache-name as output
       id: name
-      run: echo "::set-output name=cache-name::$(echo $CACHE_NAME)"
-      env:
-        CACHE_NAME: ${{ hashFiles('random.txt') }}
+      run: echo "::set-output name=cache-name::${{ hashFiles('random.txt') }}"
 
   test-save:
     needs: generate-key
@@ -69,10 +69,11 @@ jobs:
         @assert ENV["cache-hit"] == "true"
       env:
         cache-hit: ${{ steps.cache.outputs.cache-hit }}
-    - name: Check non-empty artifacts dir
+    - name: Check non-empty artifacts and packages dir
       shell: 'julia --color=yes {0}'
       run: |
-        dir = joinpath(first(DEPOT_PATH), "artifacts")
-        @assert isdir(dir)
-        @assert !isempty(readdir(dir))
+        artifacts_dir = joinpath(first(DEPOT_PATH), "artifacts")
+        @assert !isempty(readdir(artifacts_dir))
+        packages_dir = joinpath(first(DEPOT_PATH), "packages")
+        @assert !isempty(readdir(packages_dir))