From 5501ba6fe70af0937b46db357bddef6535ceda28 Mon Sep 17 00:00:00 2001
From: Bryan Helmkamp <bryan@brynary.com>
Date: Tue, 10 Mar 2026 18:31:34 -0400
Subject: [PATCH] Fix install.sh prompt not showing when piped via stdin

Check for /dev/tty instead of stdin being a terminal, so the Y/n
prompt works with `cat install.sh | bash`.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 install.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/install.sh b/install.sh
index b3cbb7e98..47610b317 100755
--- a/install.sh
+++ b/install.sh
@@ -144,7 +144,7 @@ fi
 echo "" >&2
 
 # --- Prompt to run setup wizard ---
-if [ -t 0 ] && [ -t 2 ]; then
+if [ -t 2 ] && [ -e /dev/tty ]; then
   printf "  ${BOLD}Run ${BOLD_CYAN}arc install${RESET}${BOLD} now to complete setup? [Y/n]${RESET} " >&2
   read -r answer </dev/tty
   case "$answer" in