From fbaa7ce75e5e06bbed15c514601a87cc4ddededf Mon Sep 17 00:00:00 2001
From: Alex Hoppen <ahoppen@apple.com>
Date: Thu, 28 Aug 2025 09:04:37 +0200
Subject: [PATCH] When `PipeAsStringHandler` is destroyed, ensure that we flush
 any pending data
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Otherwise, we would not handle the last line if it didn’t end with a newline character.
---
 Sources/SwiftExtensions/PipeAsStringHandler.swift | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Sources/SwiftExtensions/PipeAsStringHandler.swift b/Sources/SwiftExtensions/PipeAsStringHandler.swift
index bc03df4e..3d12dba7 100644
--- a/Sources/SwiftExtensions/PipeAsStringHandler.swift
+++ b/Sources/SwiftExtensions/PipeAsStringHandler.swift
@@ -27,6 +27,14 @@ package actor PipeAsStringHandler {
     self.handler = handler
   }
 
+  deinit {
+    if !buffer.isEmpty {
+      queue.async { [handler, buffer] in
+        handler(String(data: buffer, encoding: .utf8) ?? "<invalid UTF-8>")
+      }
+    }
+  }
+
   private func handleDataFromPipeImpl(_ newData: Data) {
     self.buffer += newData
     while let newlineIndex = self.buffer.firstIndex(of: UInt8(ascii: "\n")) {