rpush

   1 #!/bin/bash
   2
   3 # Usage:
   4 #   rpush [-f|--force] SRC DEST ssh SSH_args..
   5 # or
   6 #   rpush [-f|--force] SRC DEST eval
   7 #
   8 # On carefulness:
   9 # will try not to overwrite DEST unless -f is specified.
  10 #
  11 # "ssh" and "eval" are just examples; any valid bash command
  12 # which interpretes arguments in the same way as "eval" will do.
  13
  14 # Licensed to all under AGPL as published by FSF.
  15 # Copyright (C) 2012 by Ivan Zakharyaschev imz at altlinux.org
  16
  17 CHECK=yes
  18 case "$1" in
  19     -f|--force)
  20         CHECK=
  21         shift
  22         ;;
  23 esac
  24
  25 readonly SRC="$1"
  26 shift
  27 readonly DEST="$1"
  28 shift
  29
  30 readonly RSH="$1"
  31 shift
  32 case "$RSH" in
  33     ssh)
  34         RSH() {
  35             ssh -e none "$@"
  36         }
  37         ;;
  38     *)
  39         RSH() {
  40             "$RSH" "$@"
  41         }
  42         ;;
  43 esac
  44
  45 pv --wait "$SRC" | RSH "$@" "${CHECK:+"ls -l $DEST >&2 2>/dev/null && exit 1 || "}" "cat > $DEST"
  46 # TODO: the problem here: the value $DEST should be protected from an expansion by the remote shell.