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#!/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
FIND="$(command -v find)"
FIND="${FIND:-$(command -v gfind)}"
TAR="${TAR:-$(command -v tar)}"
GZIP="$(command -v gzip)"
# try to use fixed source epoch
if [ -n "$PKG_SOURCE_DATE_EPOCH" ]; then
TIMESTAMP=$(date --date="@$PKG_SOURCE_DATE_EPOCH")
elif [ -n "$SOURCE_DATE_EPOCH" ]; then
TIMESTAMP=$(date --date="@$SOURCE_DATE_EPOCH")
else
TIMESTAMP=$(date)
fi
ipkg_extract_value() {
sed -e "s/^[^:]*:[[:space:]]*//"
}
required_field() {
field=$1
grep "^$field:" < $CONTROL/control | ipkg_extract_value
}
pkg_appears_sane() {
local pkg_dir=$1
local owd=$PWD
cd $pkg_dir
PKG_ERROR=0
pkg=`required_field Package`
version=`required_field Version | sed 's/Version://; s/^.://g;'`
arch=`required_field Architecture`
if echo $pkg | grep '[^a-zA-Z0-9_.+-]'; then
echo "*** Error: Package name $name contains illegal characters, (other than [a-z0-9.+-])" >&2
PKG_ERROR=1;
fi
if [ -f $CONTROL/conffiles ]; then
rm -f $CONTROL/conffiles.resolved
for cf in `$FIND $(sed -e "s!^/!$pkg_dir/!" $CONTROL/conffiles) -type f`; do
echo "${cf#$pkg_dir}" >> $CONTROL/conffiles.resolved
done
rm $CONTROL/conffiles
if [ -f $CONTROL/conffiles.resolved ]; then
mv $CONTROL/conffiles.resolved $CONTROL/conffiles
chmod 0644 $CONTROL/conffiles
fi
fi
cd $owd
return $PKG_ERROR
}
resolve_file_mode_id() {
local var=$1 type=$2 name=$3 id
case "$name" in
root)
id=0
;;
*[!0-9]*)
id=$(sed -ne "s#^$type $name \\([0-9]\\+\\)\\b.*\$#\\1#p" "$TOPDIR/tmp/.packageusergroup" 2>/dev/null)
;;
*)
id=$name
;;
esac
export "$var=$id"
[ -n "$id" ]
}
###
# ipkg-build "main"
###
file_modes=""
usage="Usage: $0 [-v] [-h] [-m] <pkg_directory> [<destination_directory>]"
while getopts "hvm:" opt; do
case $opt in
v ) echo $version
exit 0
;;
h ) echo $usage >&2 ;;
m ) file_modes=$OPTARG ;;
\? ) 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 $pkg_dir/CONTROL ] && CONTROL=CONTROL
if [ -z "$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
for file_mode in $file_modes; do
case $file_mode in
/*:*:*:*)
;;
*)
echo "ERROR: file modes must use absolute path and contain user:group:mode"
echo "$file_mode"
exit 1
;;
esac
mode=${file_mode##*:}; path=${file_mode%:*}
group=${path##*:}; path=${path%:*}
user=${path##*:}; path=${path%:*}
if ! resolve_file_mode_id uid user "$user"; then
echo "ERROR: unable to resolve uid of $user" >&2
exit 1
fi
if ! resolve_file_mode_id gid group "$group"; then
echo "ERROR: unable to resolve gid of $group" >&2
exit 1
fi
chown "$uid:$gid" "$pkg_dir/$path"
chmod "$mode" "$pkg_dir/$path"
done
$TAR -X $tmp_dir/tarX --format=gnu --sort=name -cpf - --mtime="$TIMESTAMP" . | $GZIP -n - > $tmp_dir/data.tar.gz
installed_size=`stat -c "%s" $tmp_dir/data.tar.gz`
sed -i -e "s/^Installed-Size: .*/Installed-Size: $installed_size/" \
$pkg_dir/$CONTROL/control
( cd $pkg_dir/$CONTROL && $TAR --format=gnu --sort=name -cf - --mtime="$TIMESTAMP" . | $GZIP -n - > $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
( cd $tmp_dir && $TAR --format=gnu --sort=name -cf - --mtime="$TIMESTAMP" ./debian-binary ./data.tar.gz ./control.tar.gz | $GZIP -n - > $pkg_file )
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"
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