From a9bec11e31dd18b78ec0e536e956ccf24c16bd4d Mon Sep 17 00:00:00 2001
From: George Rawlinson <george@rawlinson.net.nz>
Date: Thu, 8 Jul 2021 14:33:48 +0000
Subject: [PATCH] fix: only export GPG_TTY if gpg is installed

---
 source/gpg.zsh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/source/gpg.zsh b/source/gpg.zsh
index 8c1a33d..fcefeb5 100644
--- a/source/gpg.zsh
+++ b/source/gpg.zsh
@@ -9,7 +9,9 @@
 # It is important that this environment variable always reflects the out‐
 # put of the tty command.
 
-GPG_TTY=$(tty)
-export GPG_TTY
+if command -v gpg-agent &> /dev/null; then
+  GPG_TTY=$(tty)
+  export GPG_TTY
+fi
 
 # vim: ft=zsh expandtab tabstop=2 shiftwidth=2