vizvfs.sh

#!/bin/sh
pgm="${0##*/}" # Program basename
[ $# -gt 0 ] || { echo "Usage: $pgm [ssh_options] ssh_host" >&2; exit 1; }
GOURCE_OPTIONS="
    --1280x800 --auto-skip-seconds 1 --bloom-intensity 0.25
    --file-idle-time 15 --highlight-users --key --log-format custom
    --output-ppm-stream - --seconds-per-day 0.01
" # END-QUOTE
FFMPEG_OPTIONS="
    -y -r 60 -f image2pipe -vcodec ppm -i - -vcodec libx264
    -preset ultrafast -pix_fmt yuv420p -crf 1 -threads 0 -bf 0 \
" # END-QUOTE
PROBE=vop_create,vop_lookup,vop_mkdir,vop_mknod,vop_remove,vop_rmdir,vop_symlink
ssh "$@" dwatch -FX vop_create $PROBE | awk '
    (execname = $6) && sub(/\[[[:digit:]]+\]:$/, "", execname) {
        (cmd = sprintf("date -jf \"%s\" \"%s\" +%%s", "%Y %b %e %T",
            datetime = substr($0, 1, 20))) | getline epoch
        close(cmd)
        if ((probe = $8) ~ /remove|rm/)
            type = "D"
        else if (probe ~ /lookup/)
            type = "M"
        else
            type = "A"
        sub(/.*:entry /, "")
        printf "%s|%s|%s|%s\n", epoch, execname, type, (path = $0)
    }
' | gource $GOURCE_OPTIONS - | ffmpeg $FFMPEG_OPTIONS "${pgm%.*}.mp4"