fix: actually trigger rebuild when watched files change

Author: egoist

src/index.ts

@@ -28,9 +28,9 @@ export const defineConfig = (
     | Options
     | Options[]
     | ((
-      /** The options derived from CLI flags */
-      overrideOptions: Options
-    ) => MaybePromise<Options | Options[]>)
+        /** The options derived from CLI flags */
+        overrideOptions: Options
+      ) => MaybePromise<Options | Options[]>)
 ) => options
 
 const killProcess = ({
@@ -67,8 +67,8 @@ const normalizeOptions = async (
           ? {}
           : undefined
         : typeof _options.dts === 'string'
-          ? { entry: _options.dts }
-          : _options.dts,
+        ? { entry: _options.dts }
+        : _options.dts,
   }
 
   setSilent(options.silent)
@@ -120,9 +120,9 @@ export async function build(_options: Options) {
     _options.config === false
       ? {}
       : await loadTsupConfig(
-        process.cwd(),
-        _options.config === true ? undefined : _options.config
-      )
+          process.cwd(),
+          _options.config === true ? undefined : _options.config
+        )
 
   const configData =
     typeof config.data === 'function'
@@ -272,16 +272,17 @@ export async function build(_options: Options) {
                 typeof options.watch === 'boolean'
                   ? '.'
                   : Array.isArray(options.watch)
-                    ? options.watch.filter(
+                  ? options.watch.filter(
                       (path): path is string => typeof path === 'string'
                     )
-                    : options.watch
+                  : options.watch
 
               logger.info(
                 'CLI',
-                `Watching for changes in ${Array.isArray(watchPaths)
-                  ? watchPaths.map((v) => '"' + v + '"').join(' | ')
-                  : '"' + watchPaths + '"'
+                `Watching for changes in ${
+                  Array.isArray(watchPaths)
+                    ? watchPaths.map((v) => '"' + v + '"').join(' | ')
+                    : '"' + watchPaths + '"'
                 }`
               )
               logger.info(
@@ -298,8 +299,12 @@ export async function build(_options: Options) {
               })
               watcher.on('all', (type, file) => {
                 file = slash(file)
-                if (!buildDependencies.has(file)) return
-
+                // By default we only rebuild when imported files change
+                // If you specify custom `watch`, a string or multiple strings
+                // We rebuild when those files change
+                if (options.watch === true && !buildDependencies.has(file)) {
+                  return
+                }
                 logger.info('CLI', `Change detected: ${type} ${file}`)
                 debouncedBuildAll()
               })