Configure Ruff for VSCode (#10572)

.vscode/settings.default.json

@@ -5,7 +5,6 @@
  *
  * ⚠ Disclaimer: The typeshed team doesn't commit to maintaining this file. It exists purely for your ease of use.
 */
-// TODO: Add charliermarsh.ruff to unrecommended extensions
 {
     // Don't format on save for formatters we don't explicitely control
     "editor.formatOnSave": false,
@@ -22,7 +21,8 @@
         "pytype_exclude_list.txt": "properties"
     },
     "files.exclude": {
-        "**/.mypy_cache": true
+        "**/.*_cache": true, // mypy and Ruff cache
+        "**/__pycache__": true
     },
     "files.insertFinalNewline": true,
     "files.trimFinalNewlines": true,
@@ -48,6 +48,7 @@
         "editor.formatOnSave": true,
         "editor.codeActionsOnSave": {
             "source.fixAll": true,
+            // Allow isort or Ruff to organize imports
             "source.organizeImports": true
         }
     },
@@ -110,6 +111,10 @@
     "isort.check": true,
     "isort.importStrategy": "fromEnvironment",
     "black-formatter.importStrategy": "fromEnvironment",
+    "ruff.importStrategy": "fromEnvironment",
+    "ruff.fixAll": true,
+    // Conflict between Ruff and isort
+    "ruff.organizeImports": false,
     "evenBetterToml.formatter.alignComments": false,
     "evenBetterToml.formatter.alignEntries": false,
     "evenBetterToml.formatter.allowedBlankLines": 1,