new file: vifmimg, uberzug script for vifm image previews.

new file:   vifmrun, bash script to launch vifm with uberzug
image previews.

.config/vifm/scripts/vifmimg

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+readonly ID_PREVIEW="preview"
+
+if [ -e "$FIFO_UEBERZUG" ]; then
+    if [[ "$1" == "draw" ]]; then
+        declare -p -A cmd=([action]=add [identifier]="$ID_PREVIEW"
+                           [x]="$2" [y]="$3" [width]="$4" [height]="$5" \
+                           [path]="${PWD}/$6") \
+            > "$FIFO_UEBERZUG"
+    else
+        declare -p -A cmd=([action]=remove [identifier]="$ID_PREVIEW") \
+            > "$FIFO_UEBERZUG"
+    fi
+fi

.config/vifm/scripts/vifmrun

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+export FIFO_UEBERZUG="/tmp/vifm-ueberzug-${PPID}"
+
+function cleanup {
+    rm "$FIFO_UEBERZUG" 2>/dev/null
+    pkill -P $$ 2>/dev/null
+}
+
+rm "$FIFO_UEBERZUG" 2>/dev/null
+mkfifo "$FIFO_UEBERZUG"
+trap cleanup EXIT
+tail --follow "$FIFO_UEBERZUG" | ueberzug layer --silent --parser bash &
+
+vifm
+cleanup