iankelling.org Git - distro-setup/blob - myunison

   1 #!/bin/bash -lx
   2
   3 set -eE -o pipefail
   4 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
   5
   6 gen_args=()
   7 do_snapshot=true
   8 while [[ $1 ]]; do
   9     case $1 in
  10         -n) do_snapshot=false; shift ;;
  11         --) shift; break ;;
  12         -*) gen_args+=($1) ; shift ;;
  13         *) host=$1; shift ;;
  14     esac
  15 done
  16
  17
  18 # arch and debian don't play nice with unison.
  19 # "connection lost" on unison-gtk, with bignum errs in term,
  20 # and simply freezing on cli, all means compiled under
  21 # different ocaml versions.
  22 # I had the great realization that unison is a self contained
  23 # binary with no special runtime dependencies.
  24 # However, I got a gtk error running the ui version.
  25 # todo: I should test pushing my unison version instead
  26 # of pulling it.
  27 /p/c/subdir_files/.unison/gen ${gen_args[@]}
  28 if [[ ! $host ]]; then
  29     echo "$0: error: expected argument for hostname"
  30     exit 1
  31 fi
  32
  33
  34 # todo: this doesn't deal with if the host is running arch too
  35
  36 # note, without bash, it prints some crap about tty
  37 # on an uncustomized jessie install.
  38 scp /usr/bin/unison root@$host:/usr/local/bin
  39
  40 echo "$0: egen args ${gen_args[@]}"
  41 if $do_snapshot; then
  42     unison-snapshot
  43     if ! ssh root@$host unison-snapshot; then
  44         if [[ ! ${gen_args[@]} ]]; then
  45             # gen_args are all about syncing with new systems where
  46             # we could expect the remote snapshot to not be available yet.
  47             echo "$0: error: failed remote unison-snapshot"
  48             exit 1
  49         fi
  50     fi
  51 fi
  52
  53 f=unison-gtk
  54 type -t $f &>/dev/null || f=unison-gtk2 # for arch
  55 if s $f "$host"; then
  56     if [[ $host == frodo ]]; then
  57         # only send data to the machine i do full backups to
  58         p=/p/c/machine_specific/$HOSTNAME/.unison/
  59         s rsync -rlptgohi $p root@$host:$p
  60     fi
  61     p=/p/c/machine_specific/$host/.unison/
  62     s rsync -rlptgohvi root@$host:$p $p
  63 fi