mkgpl

#!/bin/sh

#
# History
#
# Jul 04 2005 stuartm
#
# First release.
#

VERSION="v1.00 Jul 04 2005"

#
# This uses only shell builtins to set up the utilities for require() to use
# at which point other utilities can be require()ed. This includes setting
# up $basename and $THIS for die().
#
init_require() {
  which which > /dev/null 2>&1
  if [ $? -ne 0 ]; then
    echo "$0: Error: Required utility 'which' not found"
    exit 1
  fi
  which basename > /dev/null 2>&1
  if [ $? -ne 0 ]; then
    echo "$0: Error: Required utility 'basename' not found"
    exit 127
  fi
  which=`which which`
  basename=`which basename`
  THIS=`$basename $0`
}

die() {
  echo "$THIS: Error: $*"
  exit 1
}

require() {
  local util

  util=`$which $1`
  if [ $? -ne 0 ] || [ "$util" = "" ]; then
    die "Required utility '$1' not found"
  fi
  eval "$1=$util"
}

#
# Main
#

init_require

require gunzip
require tar
require dirname
require gzip
require rm
require awk

while [ "$1" != "" ]; do
  case $1 in
    -h)
      echo "$VERSION"
      echo
      echo "$THIS -h"
      echo "$THIS <SDK>"
      echo
      echo "Specify a source SDK from which the GPL-only SDK will be created."
      exit 0
      ;;
    *)
      if [ "$SDK" = "" ]; then
        SDK=$1
      else
        die "Too many arguments"
      fi
  esac
  shift
done

[ "$SDK" = "" ] && die "Missing <SDK>"

[ ! -f "$SDK" ] && die "$SDK is not a file"

$gunzip < $SDK | $tar xf - || die "Couldn't unpack $SDK"

DIR_SDK=`$dirname $SDK`
if [ "$DIR_SDK" = "." ]; then
  DIR_SDK=
else
  DIR_SDK="$DIR_SDK/"
fi
BASE_SDK=`$basename $SDK | $awk '{ match($1, "(.*).sdk.*", a); print a[1]; }'`

$tar cf - $BASE_SDK.sdk $BASE_SDK.gpl | $gzip > ${DIR_SDK}$BASE_SDK.sdk.gpl-only.tar.gz || die "Couldn't pack ${DIR_SDK}$BASE_SDK.sdk.gpl-only.tar.gz"

$rm -f $BASE_SDK.sdk $BASE_SDK.gpl $BASE_SDK.nda || die "Couldn'r clean up temporary files"