fix: better tty check (#3313)

Our previous tty check could return true in environments where the tty
device node exists, but cannot actually be opened.

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- [ ] I am happy for maintainers to push small adjustments to this PR,
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same thing

1 files changed, 1 insertions, 1 deletions

diff --git a/install.sh b/install.sh
index 659b652b..0dc0419f 100755
--- a/install.sh
+++ b/install.sh
@@ -11,7 +11,7 @@ for arg in "$@"; do
 done
 
 if [ "$ATUIN_NON_INTERACTIVE" != "yes" ]; then
-  if [ -t 0 ] || [ -c /dev/tty ]; then
+  if [ -t 0 ] || { true </dev/tty; } 2>/dev/null; then
     ATUIN_NON_INTERACTIVE="no"
   else
     ATUIN_NON_INTERACTIVE="yes"