From: Mark Wooding <mdw@distorted.org.uk>
Date: Thu, 20 May 2021 17:43:16 +0000 (+0100)
Subject: bin/, Makefile: Add some scripts for doing stuff to remote machines.
X-Git-Url: https://git.distorted.org.uk/~mdw/profile/commitdiff_plain/a10bf242a684d2dd8cdd2fe949330a21cdb7789e

bin/, Makefile: Add some scripts for doing stuff to remote machines.
---

diff --git a/Makefile b/Makefile
index cc84f9b..992fdab 100644
--- a/Makefile
+++ b/Makefile
@@ -245,6 +245,9 @@ SCRIPTLINKS		+= datasyms
 SCRIPTLINKS		+= fixsub
 SCRIPTLINKS		+= check-debsyms
 SCRIPTLINKS		+= check-blkdev-size
+SCRIPTLINKS		+= xremote
+SCRIPTLINKS		+= remote-disorder
+SCRIPTLINKS		+= remote-slideshow
 
 ## Random odds and ends.
 DOTLINKS		+= .infokey .sqliterc
diff --git a/bin/remote-disorder b/bin/remote-disorder
new file mode 100755
index 0000000..2c8d268
--- /dev/null
+++ b/bin/remote-disorder
@@ -0,0 +1,18 @@
+#! /bin/sh -e
+case $# in 1) ;; *) echo >&2 "usage: $0 HOST"; exit 2 ;; esac
+host=$1; shift
+case $host in
+  *[!-a-zA-Z0-9]*) echo >&2 "$0: bad host name \`$host'"; exit 2 ;;
+esac
+cd "$HOME/.disorder"
+if ! [ -f "passwd.$host" ] ||
+   ! grep -q "^connect -unix /.*/\.disorder/sock/disorder@$host" \
+       "passwd.$host"
+then echo >&2 "$0: unknown disorder host \`$host'"; exit 2; fi
+if [ -S "sock/ssh@$host" ]; then
+  ssh -oControlPath="sock/ssh@$host" -Oexit "$host"
+fi
+rm -f "sock/disorder@$host"
+ssh -oControlMaster=yes -oControlPath="sock/ssh@$host" -fnN \
+    -L"sock/disorder@$host:/var/lib/disorder/socket" \
+    "$host"
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
diff --git a/bin/xremote b/bin/xremote
new file mode 100755
index 0000000..9aefdb9
--- /dev/null
+++ b/bin/xremote
@@ -0,0 +1,16 @@
+#! /bin/sh -e
+
+case $#,$1 in
+  0,* | 1,*) ok=nil ;;
+  *,*:*) ok=t ;;
+  *) ok=nil ;;
+esac
+case $ok in
+  nil) echo >&2 "usage: $0 HOST:RDPY/LDPY PROG ARGS ..."; exit 2 ;;
+esac
+host=${1%:*} dpy=${1##*:}; rdpy=${dpy%%/*} ldpy=${dpy#*/}; shift 1
+
+ssh -L"/tmp/.X11-unix/X$ldpy:/tmp/.X11-unix/X$rdpy" -Nafx "$host"
+sleep 1
+trap 'trap - INT QUIT HUP EXIT; ssh -Oexit "$host"; rm -f "/tmp/.X11-unix/X$ldpy"' INT QUIT HUP EXIT
+DISPLAY=:$ldpy "$@"