Revert "Only listen for stdin close on TTYs (#8523)" (#9331)

* Revert "Only listen for stdin close on TTYs (#8523)"

This reverts commit 14f6574.

* Update changelog

CHANGELOG.md

@@ -33,6 +33,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Handle variants in utility selectors using `:where()` and `:has()` ([#9309](https://github.com/tailwindlabs/tailwindcss/pull/9309))
 - Improve data type analyses for arbitrary values ([#9320](https://github.com/tailwindlabs/tailwindcss/pull/9320))
 - Don't emit generated utilities with invalid uses of theme functions ([#9319](https://github.com/tailwindlabs/tailwindcss/pull/9319))
+- Revert change that only listened for stdin close on TTYs ([#9331](https://github.com/tailwindlabs/tailwindcss/pull/9331))
 
 ## [3.1.8] - 2022-08-05
 

src/cli.js

@@ -1016,10 +1016,8 @@ async function build() {
 
   if (shouldWatch) {
     /* Abort the watcher if stdin is closed to avoid zombie processes */
-    if (process.stdin.isTTY) {
-      process.stdin.on('end', () => process.exit(0))
-      process.stdin.resume()
-    }
+    process.stdin.on('end', () => process.exit(0))
+    process.stdin.resume()
     startWatcher()
   } else {
     buildOnce()