ueberzug&vifm: ready for new version

.local/bin/tools/vifm/vifmrun

@@ -1,23 +1,21 @@
-#!/usr/bin/env bash
+#!/bin/sh
 
-# by cirala, checkout github.com/cirala/vifmimg
-
-export FIFO_UEBERZUG="/tmp/vifm-ueberzug-${PPID}"
-
-if [ ! -f "/usr/bin/ueberzug" ]; then
-	vifm
-	exit
+if [ -z "$(command -v vifm)" ]; then
+	printf "vifm isn't installed on your system!\n"
+	exit 1
+elif [ -z "$(command -v ueberzug)" ]; then
+	exec vifm "$@"
+else
+	cleanup() {
+		exec 3>&-
+	    rm "$FIFO_UEBERZUG"
+	}
+	[ ! -d "$HOME/.cache/vifm" ] && mkdir -p "$HOME/.cache/vifm"
+	export FIFO_UEBERZUG="$HOME/.cache/vifm/ueberzug-${$}"
+	mkfifo "$FIFO_UEBERZUG"
+	ueberzug layer -s <"$FIFO_UEBERZUG" -p json &
+	exec 3>"$FIFO_UEBERZUG"
+	trap cleanup EXIT
+	vifm "$@" 3>&-
+	vifmimg clear
 fi
-
-function cleanup {
-    rm "$FIFO_UEBERZUG" 2>/dev/null
-    pkill -P $$ 2>/dev/null
-}
-pkill -P $$ 2>/dev/null
-rm "$FIFO_UEBERZUG" 2>/dev/null
-mkfifo "$FIFO_UEBERZUG" >/dev/null
-trap cleanup EXIT 2>/dev/null
-tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser bash 2>&1 >/dev/null &
-
-vifm "$@"
-cleanup