mdw@git.distorted.org.uk Git - profile/blob - bin/remote-slideshow

   1 #! /bin/sh -e
   2
   3 case $#,$2 in
   4   0,* | 1,*) ok=nil ;;
   5   *,*:*) ok=t ;;
   6   *) ok=nil ;;
   7 esac
   8 case $ok in
   9   nil) echo >&2 "usage: $0 DIR,... HOST:DISP [CMD ARGS ...]"; exit 2; ;;
  10 esac
  11 dirs=$1 host=${2%:*} dpy=${2##*:}; shift 2
  12 case $#,$1 in
  13   0, | 1,:slideshow)
  14     set -- /usr/lib/xscreensaver/glslideshow -duration 10 -pan 10 \
  15         -xrm "'*desktopGrabber: ./getimg %s'"
  16      ;;
  17   1,:photopile)
  18     set -- /usr/lib/xscreensaver/photopile -no-titles -no-polaroid -shadows \
  19         -xrm "'*desktopGrabber: ./getimg %s'"
  20      ;;
  21 esac
  22
  23 t=$(mktemp -d "${TMPDIR-/tmp}/remote-slidesshow.XXXXXXXX")
  24 mkfifo "$t/pipe"
  25 exec 3<>"$t/pipe"
  26 rm -rf "$t"
  27
  28 ssh -ax "$host" "
  29         set -e
  30         tmp=\$(mktemp -d \"\${TMPDIR-/tmp}/remote-slideshow.XXXXXXXX\")
  31         trap 'cd / && rm -rf \$tmp' EXIT INT TERM HUP
  32         cd \$tmp
  33         IMAGEFILE=\$tmp/img; export IMAGEFILE
  34         DISPLAY=:$dpy; export DISPLAY
  35         exec 3<&0 4>&1
  36         cat >getimg <<'EOF'
  37 #! /bin/sh -e
  38 rm -f img
  39 echo \"\$IMAGEFILE\" >&4
  40 xscreensaver-command -deactivate >/dev/null 2>&1 || :
  41 IFS= read -r f <&3
  42 exec xscreensaver-getimage -directory \"\${IMAGEFILE%/*}\" -file img \"\$@\"
  43 EOF
  44         chmod +x getimg
  45         $*" <&3 |
  46 while IFS= read -r rdir; do
  47   set -- \( -false
  48   for e in jpg jpeg pjpeg pjpg png gif tif tiff xbm xpm; do
  49     set --  "$@" -o -name "*.$e"
  50   done
  51   set -- "$@" \) -type f -print -o -type d \( -false
  52   dd=$dirs
  53   while :; do
  54     case $dd in
  55       "") break ;;
  56       *,*) d=${dd##*,} dd=${dd%,*} ;;
  57       *) d=$dd dd= ;;
  58     esac
  59     for i in $(find "$d" -name .slideshow-ignore -type f -print); do
  60       while IFS= read -r line; do
  61         case $line in \#*) continue ;; esac
  62         set -- "$@" -o -path "${i%/*}/$line"
  63       done <"$i"
  64     done
  65     set -- "$d" "$@"
  66   done
  67   set -- "$@" \) -prune
  68   f=$(find "$@" | shuf -n1)
  69   echo "$f"
  70   scp "$f" "$host:$rdir" >/dev/null 2>&1
  71   echo done >&3
  72 done