X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/profile/blobdiff_plain/f668482fe8b6724f56525bda48fc8d40e2041d83..a10bf242a684d2dd8cdd2fe949330a21cdb7789e:/bin/remote-slideshow

diff --git a/bin/remote-slideshow b/bin/remote-slideshow
new file mode 100755
index 0000000..4a49a60
--- /dev/null
+++ b/bin/remote-slideshow
@@ -0,0 +1,72 @@
+#! /bin/sh -e
+
+case $#,$2 in
+  0,* | 1,*) ok=nil ;;
+  *,*:*) ok=t ;;
+  *) ok=nil ;;
+esac
+case $ok in
+  nil) echo >&2 "usage: $0 DIR,... HOST:DISP [CMD ARGS ...]"; exit 2; ;;
+esac
+dirs=$1 host=${2%:*} dpy=${2##*:}; shift 2
+case $#,$1 in
+  0 | 1,:slideshow)
+    set -- /usr/lib/xscreensaver/glslideshow -duration 60 -pan 10 \
+	-xrm "'*desktopGrabber: ./getimg %s'"
+     ;;
+  1,:photopile)
+    set -- /usr/lib/xscreensaver/photopile -no-titles -no-polaroid -shadows \
+	-xrm "'*desktopGrabber: ./getimg %s'"
+     ;;
+esac
+
+t=$(mktemp -d "${TMPDIR-/tmp}/remote-slidesshow.XXXXXXXX")
+mkfifo "$t/pipe"
+exec 3<>"$t/pipe"
+rm -rf "$t"
+
+ssh -ax "$host" "
+	set -e
+	tmp=\$(mktemp -d \"\${TMPDIR-/tmp}/remote-slideshow.XXXXXXXX\")
+	trap 'cd / && rm -rf \$tmp' EXIT INT TERM HUP
+	cd \$tmp
+	IMAGEFILE=\$tmp/img; export IMAGEFILE
+	DISPLAY=:$dpy; export DISPLAY
+	exec 3<&0 4>&1
+	cat >getimg <<'EOF'
+#! /bin/sh -e
+rm -f img
+echo \"\$IMAGEFILE\" >&4
+xscreensaver-command -deactivate >/dev/null 2>&1 || :
+IFS= read -r f <&3
+exec xscreensaver-getimage -directory \"\${IMAGEFILE%/*}\" -file img \"\$@\"
+EOF
+	chmod +x getimg
+	$*" <&3 |
+while IFS= read -r rdir; do
+  set -- \( -false
+  for e in jpg jpeg pjpeg pjpg png gif tif tiff xbm xpm; do
+    set --  "$@" -o -name "*.$e"
+  done
+  set -- "$@" \) -type f -print -o -type d \( -false
+  dd=$dirs
+  while :; do
+    case $dd in
+      "") break ;;
+      *,*) d=${dd##*,} dd=${dd%,*} ;;
+      *) d=$dd dd= ;;
+    esac
+    for i in $(find "$d" -name .slideshow-ignore -type f -print); do
+      while IFS= read -r line; do
+	case $line in \#*) continue ;; esac
+	set -- "$@" -o -path "${i%/*}/$line"
+      done <"$i"
+    done
+    set -- "$d" "$@"
+  done
+  set -- "$@" \) -prune
+  f=$(find "$@" | shuf -n1)
+  echo "$f"
+  scp "$f" "$host:$rdir" >/dev/null 2>&1
+  echo done >&3
+done