From 9196e82b6312eb53fb105f1e490370b4e9b7702a Mon Sep 17 00:00:00 2001
From: Chris Wanstrath <chris@ozmm.org>
Date: Tue, 10 Mar 2026 11:26:26 -0700
Subject: [PATCH] no setsid on macos

---
 CLAUDE.md  | 2 +-
 src/run.ts | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/CLAUDE.md b/CLAUDE.md
index 53e0b9c..1c3f06e 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -19,7 +19,7 @@ Transcript-based shell integration test runner. Bun + TypeScript.
 ## Architecture
 
 - `src/parse.ts` — parses `.shout` files into `ShoutFile` (list of `Command`)
-- `src/run.ts` — executes commands via `Bun.spawn(["setsid", "/bin/sh"])`, captures output with sentinels
+- `src/run.ts` — executes commands via `Bun.spawn(["/bin/sh"], { detached: true })`, captures output with sentinels
 - `src/match.ts` — wildcard-aware output matching and diff generation
 - `src/format.ts` — evaluates pass/fail, formats failures and summary
 - `src/update.ts` — rewrites `.shout` files with actual output (`--update` mode)
diff --git a/src/run.ts b/src/run.ts
index 516f0e5..8df05a7 100644
--- a/src/run.ts
+++ b/src/run.ts
@@ -137,7 +137,8 @@ export async function runFile(
     env["PATH"] = options.pathDirs.join(":") + ":" + (env["PATH"] ?? "")
   }
 
-  const proc = Bun.spawn(["setsid", "/bin/sh"], {
+  const proc = Bun.spawn(["/bin/sh"], {
+    detached: true,
     stdin: "pipe",
     stdout: "pipe",
     stderr: "pipe",