From: paul <paul@plutz.net>
Date: Sun, 10 Dec 2017 00:47:26 +0000 (+0000)
Subject: guess environment variables only if not already set
X-Git-Url: http://git.plutz.net/?p=serve0;a=commitdiff_plain;h=f7105de02571c492625e7a9d034ee613b382f8c1

guess environment variables only if not already set

svn path=/trunk/; revision=195
---

diff --git a/actions/playctl.sh b/actions/playctl.sh
index 9af8f7b..ae1a51b 100755
--- a/actions/playctl.sh
+++ b/actions/playctl.sh
@@ -21,8 +21,8 @@ statusfile="${_DATA}/mplayer.status"
 statusfile="/tmp/mplayer.status"
 volfile="${_DATA}/mplayer.volume"
 
-export DISPLAY=":0"
-export XDG_RUNTIME_DIR="/run/user/$(id |sed -rn '1s;.*uid=([0-9]+)[^0-9].*;\1;p')"
+[ -z "$DISPLAY" ] && export DISPLAY=":0"
+[ -z "$XDG_RUNTIME_DIR" ] && export XDG_RUNTIME_DIR="/run/user/$(id |sed -rn '1s;.*uid=([0-9]+)[^0-9].*;\1;p')"
 
 printf '\rBREAK\r' >> "$statusfile"