fix: exit code on SIGTERM (#18741)

Author: AriPerkkio

packages/vite/src/node/preview.ts

@@ -168,10 +168,11 @@ export async function preview(
     },
   }
 
-  const closeServerAndExit = async () => {
+  const closeServerAndExit = async (_: unknown, exitCode?: number) => {
     try {
       await server.close()
     } finally {
+      process.exitCode ??= exitCode ? 128 + exitCode : undefined
       process.exit()
     }
   }

packages/vite/src/node/server/index.ts

@@ -729,10 +729,11 @@ export async function _createServer(
     },
   })
 
-  const closeServerAndExit = async () => {
+  const closeServerAndExit = async (_: unknown, exitCode?: number) => {
     try {
       await server.close()
     } finally {
+      process.exitCode ??= exitCode ? 128 + exitCode : undefined
       process.exit()
     }
   }

packages/vite/src/node/utils.ts

@@ -1524,15 +1524,17 @@ export function partialEncodeURIPath(uri: string): string {
   return filePath.replaceAll('%', '%25') + postfix
 }
 
-export const setupSIGTERMListener = (callback: () => Promise<void>): void => {
+export const setupSIGTERMListener = (
+  callback: (signal?: 'SIGTERM', exitCode?: number) => Promise<void>,
+): void => {
   process.once('SIGTERM', callback)
   if (process.env.CI !== 'true') {
     process.stdin.on('end', callback)
   }
 }
 
 export const teardownSIGTERMListener = (
-  callback: () => Promise<void>,
+  callback: Parameters<typeof setupSIGTERMListener>[0],
 ): void => {
   process.off('SIGTERM', callback)
   if (process.env.CI !== 'true') {