fix: start dts build as soon as possible

src/errors.ts

@@ -35,6 +35,6 @@ export function handleError(error: any) {
   }
   process.exitCode = 1
   if (!isMainThread && parentPort) {
-    parentPort.postMessage('has-error')
+    parentPort.postMessage('error')
   }
 }

src/index.ts

@@ -144,6 +144,25 @@ export async function build(_options: Options) {
           logger.info('CLI', 'Running in watch mode')
         }
 
+        if (options.dts) {
+          const worker = new Worker(path.join(__dirname, './rollup.js'))
+          worker.postMessage({
+            configName: item?.name,
+            options: {
+              ...options, // functions cannot be cloned
+              esbuildPlugins: undefined,
+              esbuildOptions: undefined,
+            },
+          })
+          worker.on('message', (data) => {
+            if (data === 'error') {
+              process.exitCode = 1
+            } else if (data === 'success') {
+              process.exitCode = 0
+            }
+          })
+        }
+
         if (!options.dts?.only) {
           let existingOnSuccess: ChildProcess | undefined
           /** Files imported by the entry */
@@ -195,7 +214,7 @@ export async function build(_options: Options) {
                 await runEsbuild(options, {
                   pluginContainer,
                   format,
-                  css: (index === 0 || options.injectStyle) ? css : undefined,
+                  css: index === 0 || options.injectStyle ? css : undefined,
                   logger,
                   buildDependencies,
                 })
@@ -273,30 +292,6 @@ export async function build(_options: Options) {
 
           startWatcher()
         }
-
-        if (options.dts) {
-          const hasTypescript = resolveFrom.silent(process.cwd(), 'typescript')
-          if (!hasTypescript) {
-            throw new Error(`You need to install "typescript" in your project`)
-          }
-
-          const worker = new Worker(path.join(__dirname, './rollup.js'))
-          worker.postMessage({
-            configName: item?.name,
-            options: {
-              ...options, // functions cannot be cloned
-              esbuildPlugins: undefined,
-              esbuildOptions: undefined,
-            },
-          })
-          worker.on('message', (data) => {
-            if (data === 'error') {
-              process.exitCode = 1
-            } else if (data === 'success') {
-              process.exitCode = 0
-            }
-          })
-        }
       }
     )
   )

src/rollup.ts

@@ -11,6 +11,7 @@ import { createLogger, setSilent } from './log'
 import { getDeps } from './load'
 import path from 'path'
 import { reportSize } from './lib/report-size'
+import resolveFrom from 'resolve-from'
 
 const logger = createLogger()
 
@@ -196,7 +197,6 @@ async function runRollup(options: RollupConfig) {
     )
   } catch (error) {
     logger.error('dts', 'Build error')
-    parentPort?.postMessage('error')
     handleError(error)
   }
 }
@@ -219,7 +219,6 @@ async function watchRollup(options: {
       parentPort?.postMessage('success')
     } else if (event.code === 'ERROR') {
       logger.error('dts', 'Build failed')
-      parentPort?.postMessage('error')
       handleError(event.error)
     }
   })
@@ -237,5 +236,12 @@ const startRollup = async (options: NormalizedOptions) => {
 
 parentPort?.on('message', (data) => {
   logger.setName(data.configName)
+  const hasTypescript = resolveFrom.silent(process.cwd(), 'typescript')
+  if (!hasTypescript) {
+    logger.error('dts', `You need to install "typescript" in your project`)
+    parentPort?.postMessage('error')
+    parentPort?.close()
+    return
+  }
   startRollup(data.options)
 })