chore: run tests only on files under source directories (#26)

Co-authored-by: mohsen <[email protected]>

.github/workflows/test.yml

@@ -13,10 +13,29 @@ jobs:
       - name: checkout
         uses: actions/checkout@v3
 
+      - uses: dorny/paths-filter@v2
+        id: source-files-filter
+        with:
+          filters: |
+            source-files:
+              - 'lua/**'
+              - 'plugin/**'
+              - 'tests/**'
+
+      - uses: Ana06/[email protected]
+        id: source-files
+        continue-on-error: true
+        with:
+          # Format of the steps output context.
+          # Can be 'space-delimited', 'csv', or 'json'.
+          # Default: 'space-delimited'
+          format: 'space-delimited'
+
       - uses: rhysd/action-setup-vim@v1
         with:
           neovim: true
           version: ${{ matrix.nvim-versions }}
 
       - name: run tests
+        if: steps.source-files-filter.outputs.source-files == 'true'
         run: make test