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Ipkg-build Script


#!/bin/sh

# ipkg-build -- construct a .ipk from a directory
# Carl Worth <cworth@east.isi.edu>
# based on a script by Steve Redler IV, steve@sr-tech.com 5-21-2001
# 2003-04-25 rea@sr.unh.edu
# Updated to work on Familiar Pre0.7rc1, with busybox tar.
# Note it Requires: binutils-ar (since the busybox ar can't create)
# For UID debugging it needs a better "find".
set -e

version=1.0

ipkg_extract_value() {
sed -e "s/^[^:]*:[[:space:]]*//"
}

required_field() {
field=$1

value=`grep "^$field:" < $CONTROL/control | ipkg_extract_value`
if [ -z "$value" ]; then
echo "*** Error: $CONTROL/control is missing field $field" >&2
return 1
fi
echo $value
return 0
}

disallowed_field() {
field=$1

value=`grep "^$field:" < $CONTROL/control | ipkg_extract_value`
if [ -n "$value" ]; then
echo "*** Error: $CONTROL/control contains disallowed field $field" >&2
return 1
fi
echo $value
return 0
}

pkg_appears_sane() {
local pkg_dir=$1

local owd=$PWD
cd $pkg_dir

PKG_ERROR=0

tilde_files=`find . -name '*~'`
if [ -n "$tilde_files" ]; then
if [ "$noclean" = "1" ]; then
echo "*** Warning: The following files have names ending in '~'.
You probably want to remove them: " >&2
ls -ld $tilde_files
echo >&2
else
echo "*** Removing the following files: $tilde_files"
rm -f "$tilde_files"
fi
fi

large_uid_files=`find . -uid +99 || true`

if [ "$ogargs" = "" ] && [ -n "$large_uid_files" ]; then
echo "*** Warning: The following files have a UID greater than 99.
You probably want to chown these to a system user: " >&2
ls -ld $large_uid_files
echo >&2
fi

if [ ! -f "$CONTROL/control" ]; then
echo "*** Error: Control file $pkg_dir/$CONTROL/control not found." >&2
cd $owd
return 1
fi

pkg=`required_field Package`
[ "$?" -ne 0 ] && PKG_ERROR=1

version=`required_field Version | sed 's/Version://; s/^.://g;'`
[ "$?" -ne 0 ] && PKG_ERROR=1

arch=`required_field Architecture`
[ "$?" -ne 0 ] && PKG_ERROR=1

required_field Maintainer >/dev/null
[ "$?" -ne 0 ] && PKG_ERROR=1

required_field Description >/dev/null
[ "$?" -ne 0 ] && PKG_ERROR=1

section=`required_field Section`
[ "$?" -ne 0 ] && PKG_ERROR=1
if [ -z "$section" ]; then
echo "The Section field should have one of the following values:" >&2
echo "admin, base, comm, editors, extras, games, graphics, kernel, libs, misc, net, text, web, x11" >&2
fi

priority=`required_field Priority`
[ "$?" -ne 0 ] && PKG_ERROR=1
if [ -z "$priority" ]; then
echo "The Priority field should have one of the following values:" >&2
echo "required, important, standard, optional, extra." >&2
echo "If you don't know which priority value you should be using, then use \`optional'" >&2
fi

source=`required_field Source`
[ "$?" -ne 0 ] && PKG_ERROR=1
if [ -z "$source" ]; then
echo "The Source field contain the URL's or filenames of the source code and any patches"
echo "used to build this package. Either gnu-style tarballs or Debian source packages "
echo "are acceptable. Relative filenames may be used if they are distributed in the same"
echo "directory as the .ipk file."
fi

disallowed_filename=`disallowed_field Filename`
[ "$?" -ne 0 ] && PKG_ERROR=1

if echo $pkg | grep '[^a-z0-9.+-]'; then
echo "*** Error: Package name $name contains illegal characters, (other than [a-z0-9.+-])" >&2
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 "*** Error: The following fields in $CONTROL/control are missing a ':'" >&2
echo " $bad_fields" >&2
echo "ipkg-build: This may be due to a missing initial space for a multi-line field value" >&2
PKG_ERROR=1
fi

for script in $CONTROL/preinst $CONTROL/postinst $CONTROL/prerm $CONTROL/postrm; do
if [ -f $script -a ! -x $script ]; then
echo "*** Error: package script $script is not executable" >&2
PKG_ERROR=1
fi
done

if [ -f $CONTROL/conffiles ]; then
for cf in `cat $CONTROL/conffiles`; do
if [ ! -f ./$cf ]; then
echo "*** Error: $CONTROL/conffiles mentions conffile $cf which does not exist" >&2
PKG_ERROR=1
fi
done
fi

cd $owd
return $PKG_ERROR
}

###
# ipkg-build "main"
###
ogargs=""
outer=ar
noclean=0
usage="Usage: $0 [-c] [-C] [-o owner] [-g group] <pkg_directory> [<destination_directory>]"
while getopts "cg:ho:v" opt; do
case $opt in
o ) owner=$OPTARG
ogargs="--owner=$owner"
;;
g ) group=$OPTARG
ogargs="$ogargs --group=$group"
;;
        c ) outer=tar
            ;;
        C ) noclean=1
            ;;
v ) echo $version
exit 0
;;
h ) echo $usage >&2 ;;
\? ) echo $usage >&2
esac
done


shift $(($OPTIND - 1))

# continue on to process additional arguments

case $# in
1)
dest_dir=$PWD
;;
2)
dest_dir=$2
if [ "$dest_dir" = "." -o "$dest_dir" = "./" ] ; then
dest_dir=$PWD
fi
;;
*)
echo $usage >&2
exit 1
;;
esac

pkg_dir=$1

if [ ! -d $pkg_dir ]; then
echo "*** Error: Directory $pkg_dir does not exist" >&2
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 "*** Error: Directory $pkg_dir has no CONTROL subdirectory." >&2
exit 1
fi

if ! pkg_appears_sane $pkg_dir; then
echo >&2
echo "ipkg-build: Please fix the above errors and try again." >&2
exit 1
fi

tmp_dir=$dest_dir/IPKG_BUILD.$$
mkdir $tmp_dir

echo $CONTROL > $tmp_dir/tarX
( cd $pkg_dir && tar $ogargs -czf $tmp_dir/data.tar.gz . -X $tmp_dir/tarX )
( cd $pkg_dir/$CONTROL && tar $ogargs -czf $tmp_dir/control.tar.gz . )
rm $tmp_dir/tarX

echo "2.0" > $tmp_dir/debian-binary

pkg_file=$dest_dir/${pkg}_${version}_${arch}.ipk
rm -f $pkg_file
if [ "$outer" = "ar" ] ; then
  ( cd $tmp_dir && ar -crf $pkg_file ./debian-binary ./data.tar.gz ./control.tar.gz )
else
  ( cd $tmp_dir && tar -zcf $pkg_file ./debian-binary ./data.tar.gz ./control.tar.gz )
fi

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"