Radix cross Linux

#!/bin/sh

# Preserve new files
install_file() {
  NEW="$1"
  OLD="`dirname $NEW`/`basename $NEW .new`"
  # If there's no file by that name, mv it over:
  if [ ! -r $OLD ]; then
    mv $NEW $OLD
  elif [ "`cat $OLD | md5sum`" = "`cat $NEW | md5sum`" ]; then # toss the redundant copy
    rm $NEW
  fi
  # Otherwise, we leave the .new copy for the admin to consider...
}


# arg 1:  the new package version
pre_install() {
  /bin/true
}

# arg 1:  the new package version
post_install() {
  # Notice we use an absolute path below, rather than sbin/depmod. This is because
  # we're testing to see if we are on the bootdisk, which will not have /sbin/depmod.
  # If we aren't, we will signal init to restart using the new binary.
  # The presence of "/etc/system-installer" is under consideration as a better test.
  # Also we have to check that we are not in the installer mode on the target system
  # ("/etc/system-installer"), and we have to be sure that we are on the working system
  # on the target hardware ("proc/sys/kernel/osrelease" - relative path).
  if [ -r proc/sys/kernel/osrelease -a ! -r /etc/system-installer -a -x /bin/uname -a -x /sbin/depmod ]; then
    # Determine the version of the running kernel:
    RELEASE=$(uname -r)
    ### Update module dependencies ###
    # If /usr is mounted and we have 'find', we can try to take a shortcut:
    if [ -x /usr/bin/find -a -e /lib/modules/$RELEASE/modules.dep \
         -a /lib/modules/$RELEASE/modules.dep -nt /etc/modules.conf ]; then
      NEWMODS="$(/usr/bin/find /lib/modules/$RELEASE -mindepth 2 -type f -newer /lib/modules/$RELEASE/modules.dep)"
      # Only rebuild dependencies if new module(s) are found:
      if [ ! "" = "$NEWMODS" ]; then
        echo "Updating module dependencies for Linux $RELEASE:"
        /sbin/depmod -a
      else
        echo "Module dependencies up to date (no new kernel modules found)."
      fi
    else # we don't have find, or there is no existing modules.dep, or it is out of date.
      echo "Updating module dependencies for Linux $RELEASE:"
      /sbin/depmod -b / $RELEASE
    fi
  fi
}

# arg 1:  the new package version
# arg 2:  the old package version
pre_update() {
  /bin/true
}

# arg 1:  the new package version
# arg 2:  the old package version
post_update() {
  post_install
}

# arg 1:  the old package version
pre_remove() {
  /bin/true
}

# arg 1:  the old package version
post_remove() {
  /bin/true
}


operation=$1
shift

$operation $*