dotter

commit 3f10474a8afe4de07faf3ec3664e43e0e38edff5
parent 2ecce99435044017e698ac4411f75d40e55eb8ab
Author: Morel Bérenger <berengermorel76@gmail.com>
Date:   Mon,  4 Sep 2023 11:56:54 +0200

watcher: now checks if required programs are found

Diffstat:
M
watcher
 | 
16
+++++++++++++++-

1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/watcher b/watcher
@@ -6,7 +6,21 @@ kill_viewer()
 	exit
 }
 
-which inotifywait || exit
+die()
+{
+	echo $@
+	exit 1
+}
+
+requires()
+{
+	which "$1" > /dev/null || die "$1 could not be found"
+}
+
+requires xdotool
+requires dot
+requires inotifywait
+
 exec 0<&-
 SOURCE="${1:?"SOURCE required as 1st arg"}"
 VIEWER="${2:?"VIEWER required as 2nd arg"}"