Inotify wrapper to refresh browser window on file update

watcher.sh

#!/bin/bash

set -euo pipefail

FILE=$1
FILENAME=$(basename "$FILE")
BROWSER=iceweasel

OK=0

while [ $OK -eq 0 ]; do
    inotifywait -e close_write -q $FILE >/dev/null
    OK=$?
    echo "$(date --rfc-3339=seconds) Refresh: $FILENAME"
    CUR_WID=$(xdotool getwindowfocus)

    # Try to find a specific window with the filename in the (HTML) title,
    # otherwise select the first visible browser window.
    WID1=$(xdotool search --name "$FILENAME.*$BROWSER"|head -1 || echo "")
    WID=$(xdotool search --onlyvisible --class $BROWSER|head -1)
    if [[ -z "$WID" ]]; then echo "Using first" && WID=$WID1; fi
    echo "Refreshing window: \"$(xdotool getwindowname $WID)\""
    xdotool key --window $WID 'F5'
    xdotool windowactivate $CUR_WID
done

Adapted from: http://peter-hoffmann.com/2010/refresh-browser-on-save-with-inotify-and-xdotool.html