Update chokidar

lib/index.js

@@ -1,4 +1,5 @@
 /**
+ * @import {FSWatcher} from 'chokidar'
  * @import {Options} from 'unified-args'
  * @import {Callback as EngineCallback, Context as EngineContext} from 'unified-engine'
  * @import {State} from './parse-argv.js'
@@ -35,7 +36,7 @@ process.on('uncaughtException', fail)
 export function args(options) {
   /** @type {State} */
   let state
-  /** @type {chokidar.FSWatcher | undefined} */
+  /** @type {FSWatcher | undefined} */
   let watcher
   /** @type {URL | boolean | string | undefined} */
   let output
@@ -150,7 +151,8 @@ export function args(options) {
         // `cwd` can be `undefined`.
         {cwd, ignoreInitial: true}
       )
-      .on('error', done)
+      // Cast: chokidar passes `unknown`, we know it’s an error.
+      .on('error', /** @type {(error: unknown) => undefined} */ (done))
       .on('change', function (filePath) {
         state.engine.files = [filePath]
         engine(state.engine, done)

lib/parse-argv.js

@@ -453,6 +453,7 @@ function parseIfString(value) {
  *   Value, or the last item of it if it’s an array.
  */
 function lastIfArray(value) {
+  // @ts-expect-error: this is good.
   return Array.isArray(value) ? value[value.length - 1] : value
 }
 
@@ -478,10 +479,11 @@ function joinIfArray(value) {
  *   Value, or an array of it if it’s a non-nully primitive.
  */
 function toArray(value) {
-  // @ts-expect-error: this is good.
-  return Array.isArray(value) || value === null || value === undefined
-    ? value
-    : [value]
+  return /** @type {T extends boolean | number | string ? Array<T> : T} */ (
+    Array.isArray(value) || value === null || value === undefined
+      ? value
+      : [value]
+  )
 }
 
 /**

package.json

@@ -8,7 +8,7 @@
   "dependencies": {
     "@types/text-table": "^0.2.0",
     "chalk": "^5.0.0",
-    "chokidar": "^3.0.0",
+    "chokidar": "^5.0.0",
     "comma-separated-tokens": "^2.0.0",
     "json5": "^2.0.0",
     "minimist": "^1.0.0",