From ddf968f1654a8ba6e358991373e57a820a94a0ad Mon Sep 17 00:00:00 2001
From: Hal Gentz <zegentzy@protonmail.com>
Date: Wed, 31 Jul 2019 01:06:30 -0600
Subject: [PATCH] Fix failed attempt to open proc files while lacking
 permission.

When started in the tty, powerline9k tries to open the stat file of the
`login` process. Because the `login` process belongs to root, it's
existence is hidden from non-privileged users. This will result in an
error like
`__p9k_detect_terminal:27: no such file or directory: /proc/3434/stat`.

Signed-off-by: Hal Gentz <zegentzy@protonmail.com>
---
 functions/utilities.zsh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/functions/utilities.zsh b/functions/utilities.zsh
index f729f8a44..288d4cb02 100755
--- a/functions/utilities.zsh
+++ b/functions/utilities.zsh
@@ -101,7 +101,7 @@ function __p9k_detect_terminal() {
       fi
       local pid=$$ termtest=''
       while true; do
-        if test "$pid" = "1" -o "$pid" = ""; then
+        if test "$pid" = "1" -o "$pid" = "" -o ! -d /proc/${pid}; then
           __P9K_TERMINAL="unknown"
           return
         fi