Disable tmux autostart during env capture

Fixes #4

Author: sindresorhus

index.js

@@ -11,6 +11,9 @@ const args = [
 const env = {
 	// Disables Oh My Zsh auto-update thing that can block the process.
 	DISABLE_AUTO_UPDATE: 'true',
+	// Prevents the oh-my-zsh tmux plugin from auto-starting.
+	ZSH_TMUX_AUTOSTARTED: 'true',
+	ZSH_TMUX_AUTOSTART: 'false',
 };
 
 const parseEnv = env => {

readme.md

@@ -30,6 +30,9 @@ console.log(await shellEnv('/bin/bash'));
 > [!NOTE]
 > If your default shell is a non-POSIX shell (e.g., Nushell), it will fall back to `/bin/zsh` or `/bin/bash`.
 
+> [!NOTE]
+> It disables the oh-my-zsh tmux plugin auto-start by setting `ZSH_TMUX_AUTOSTARTED` and `ZSH_TMUX_AUTOSTART=false` so the shell does not launch tmux while capturing environment variables.
+
 ### shellEnv(shell?)
 
 Return a promise for the environment variables.

test.js

@@ -5,12 +5,16 @@ test('async', async t => {
 	const env = await shellEnv();
 	t.true('HOME' in env);
 	t.false('' in env);
+	t.is(env.ZSH_TMUX_AUTOSTARTED, 'true');
+	t.is(env.ZSH_TMUX_AUTOSTART, 'false');
 });
 
 test('sync', t => {
 	const env = shellEnvSync();
 	t.true('HOME' in env);
 	t.false('' in env);
+	t.is(env.ZSH_TMUX_AUTOSTARTED, 'true');
+	t.is(env.ZSH_TMUX_AUTOSTART, 'false');
 });
 
 test('async - with custom shell', async t => {