no async

src/build.ts

@@ -1,21 +1,21 @@
-import { build, BuildFailure, BuildOptions } from 'esbuild'
+import { buildSync, BuildFailure, BuildOptions } from 'esbuild'
 import { existsSync, writeFileSync, unlinkSync } from 'fs'
 import { DistPath, ScriptPath } from './paths'
 import { UserScriptMetaFull } from './types'
 import readMeta from './readmeta'
 
-export default async function (
+export default function (
     name: string,
     watchCallback:
         | ((meta: UserScriptMetaFull, error: string | null) => void)
         | false = false
-): Promise<[UserScriptMetaFull, string | null]> {
+): [UserScriptMetaFull, string | null] {
     //read meta file
     let [metaJson, metaString] = readMeta(name)
     let path = ScriptPath(name)
     let pathDist = DistPath(name)
 
-    let result = await runEsbuild(
+    let result = runEsbuild(
         {
             entryPoints: [ScriptPath(name).main],
             outfile: pathDist,
@@ -96,11 +96,11 @@ interface RunEsbuildResult {
     errorRaw?: BuildFailure
 }
 
-async function runEsbuild(
+function runEsbuild(
     opts: BuildOptions,
     watchCallback: (result: RunEsbuildResult) => void,
     toWatch: boolean = false
-): Promise<RunEsbuildResult> {
+): RunEsbuildResult {
     opts.write = false
     if (toWatch) {
         opts.watch = {
@@ -135,8 +135,9 @@ async function runEsbuild(
             },
         }
     }
+
     try {
-        let res = await build(opts)
+        let res = buildSync(opts)
         let content = ''
         if (res.outputFiles && res.outputFiles.length > 0) {
             content = res.outputFiles[0].text