opkg: remove opkg-build script

This package building script is several years old and unused by buildroot.
opkg users looking for a current version of this script should visit the
opkg-utils repository at http://git.yoctoproject.org/cgit/cgit.cgi/opkg-utils/,
where this script is maintained and versioned.

Signed-off-by: Vanya Sergeev <vsergeev@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

diff --git a/package/opkg/opkg-build b/package/opkg/opkg-build
deleted file mode 100755 (executable)
index 7fd0d3f..0000000
--- a/package/opkg/opkg-build
+++ /dev/null
@@ -1,127 +0,0 @@
-#!/bin/sh
-
-# opkg-build -- construct a .opk from a directory
-# Carl Worth <cworth@east.isi.edu>
-# based on a script by Steve Redler IV, steve@sr-tech.com 5-21-2001
-set -e
-
-opkg_extract_value() {
-       sed -e "s/^[^:]*:[[:space:]]*//"
-}
-
-required_field() {
-       field=$1
-
-       value=`grep "^$field:" < $CONTROL/control | opkg_extract_value`
-       if [ -z "$value" ]; then
-               echo "opkg-build: Error: $CONTROL/control is missing field $field" ;
-               PKG_ERROR=1
-       fi
-       echo $value
-}
-
-pkg_appears_sane() {
-       local pkg_dir=$1
-
-       local owd=`pwd`
-       cd $pkg_dir
-
-       PKG_ERROR=0
-       if [ ! -f "$CONTROL/control" ]; then
-               echo "opkg-build: Error: Control file $pkg_dir/$CONTROL/control not found."
-               cd $owd
-               return 1
-       fi
-
-       pkg=`required_field Package`
-       version=`required_field Version`
-       arch=`required_field Architecture`
-       required_field Maintainer >/dev/null
-       required_field Description >/dev/null
-
-       if echo $pkg | grep '[^a-z0-9.+-]'; then
-               echo "opkg-build: Error: Package name $name contains illegal characters, (other than [a-z0-9.+-])"
-               PKG_ERROR=1;
-       fi
-
-       local bad_fields=`sed -ne 's/^\([^[:space:]][^:[:space:]]\+[[:space:]]\+\)[^:].*/\1/p' < $CONTROL/control | sed -e 's/\\n//'`
-       if [ -n "$bad_fields" ]; then
-               bad_fields=`echo $bad_fields`
-               echo "opkg-build: Error: The following fields in $CONTROL/control are missing a ':'"
-               echo "  $bad_fields"
-               echo "opkg-build: This may be due to a missing initial space for a multi-line field value"
-               PKG_ERROR=1
-       fi
-
-       for script in $CONTROL/preinst $CONTROL/postinst $CONTROL/prerm $CONTROL/postrm; do
-               if [ -f $script -a ! -x $script ]; then
-                       echo "opkg-build: Error: package script $script is not executable"
-                       PKG_ERROR=1
-               fi
-       done
-
-       if [ -f $CONTROL/conffiles ]; then
-               for cf in `cat $CONTROL/conffiles`; do
-                       if [ ! -f ./$cf ]; then
-                               echo "opkg-build: Error: $CONTROL/conffiles mentions conffile $cf which does not exist"
-                               PKG_ERROR=1
-                       fi
-               done
-       fi
-
-       cd $owd
-       return $PKG_ERROR
-}
-
-###
-# opkg-build "main"
-###
-
-case $# in
-1)
-       dest_dir=.
-       ;;
-2)
-       dest_dir=$2
-       ;;
-*)
-       echo "Usage: opkg-build <pkg_directory> [<destination_directory>]" ;
-       exit 1 
-       ;;
-esac
-
-pkg_dir=$1
-
-if [ ! -d $pkg_dir ]; then
-       echo "opkg-build: Error: Directory $pkg_dir does not exist"
-       exit 1
-fi
-
-# CONTROL is second so that it takes precedence
-CONTROL=
-[ -d $pkg_dir/DEBIAN ] && CONTROL=DEBIAN
-[ -d $pkg_dir/CONTROL ] && CONTROL=CONTROL
-if [ -z "$CONTROL" ]; then
-       echo "opkg-build: Error: Directory $pkg_dir has no CONTROL subdirectory."
-       exit 1
-fi
-
-if ! pkg_appears_sane $pkg_dir; then
-       echo "Please fix the above errors and try again."
-       exit 1
-fi
-
-tmp_dir=$dest_dir/OPKG_BUILD.$$
-mkdir $tmp_dir
-
-tar -C $pkg_dir -czf $tmp_dir/data.tar.gz . --exclude=$CONTROL
-tar -C $pkg_dir/$CONTROL -czf $tmp_dir/control.tar.gz .
-
-echo "2.0" > $tmp_dir/debian-binary
-
-pkg_file=$dest_dir/${pkg}_${version}_${arch}.opk
-tar -C $tmp_dir -czf $pkg_file debian-binary data.tar.gz control.tar.gz
-rm $tmp_dir/debian-binary $tmp_dir/data.tar.gz $tmp_dir/control.tar.gz
-rmdir $tmp_dir
-
-echo "Packaged contents of $pkg_dir into $pkg_file"