# -*- mode: sh; sh-basic-offset: 3; indent-tabs-mode: nil; -*-
# vim: set filetype=sh sw=3 sts=3 expandtab autoindent:

getconf CHROOT "`which chroot`"

function backend_chroot_init () {
	# Is the changeroot command available?
    [ -x "$CHROOT" ]
}

function backend_chroot_host_available () {
   if [ -d "$1" ]; then
      # The root exists and is a directory, everything ok
      return 0
   else
      if [ ! -e "$1" ]; then
         # The root does not exist?
         eval "$2=\"No such file or directory: '\$1'\""
      else
         # The root exists, so is not a directory
         eval "$2=\"Not a directory: '\$1'\""
      fi
      return 1
   fi
}

function backend_chroot_host_root () {
   # The host part is the root, but strip any trailing slashes
   echo "$1" | sed 's/\/*$//'
}

function backend_chroot_run () {
   # Run the command using the chroot command
   "$CHROOT" "$root" "$@"
}

function backend_chroot_interpolate_vars () {
   echo ""
}

function backend_chroot_interpolate_value () {
}