watch

src/commands/build.ts

@@ -142,8 +142,9 @@ export async function build(options: Record<string, any>) {
         dropLabels: [buildConfig.mode === 'production' ? '__DEV__' : '__PROD__', ...buildConfig.dropLabels!],
     });
     if(options.watch) {
+        await ctx.watch()
     } else {
-        ctx.rebuild()
-        ctx.dispose()
+        await ctx.rebuild()
+        await ctx.dispose()
     }
 }

src/index.ts

@@ -66,6 +66,7 @@ program
     .description('Build your bot')
     .option('-f --format [fmt]', 'The module system of your application. `cjs` or `esm`', 'esm')
     .option('-m --mode [mode]', 'the mode for sern to build in. `production` or `development`', 'development')
+    .option('-w --watch')
     .option('-W --suppress-warnings', 'suppress experimental warning')
     .option('-p --project [filePath]', 'build with the provided sern.build file')
     .option('-e --env', 'path to .env file')