create repo script

#!/bin/sh
#
# a script to updates the archive files
#
COMPRESS=gzip # compressor (gzip, bzip2, ?)
COMPRESSOPTS=-c # whichever opts cause stdin->compress->stdout (usually -c)
COMPRESSEXT=gz # whichever extension matches your compressor (gz,bz2,?)

( apt-ftparchive packages . > Packages && \
"${COMPRESS}" "${COMPRESSOPTS}" < Packages > "Packages.${COMPRESSEXT}" \
&& \
apt-ftparchive contents . > Contents && \
"${COMPRESS}" "${COMPRESSOPTS}" < Contents > "Contents.${COMPRESSEXT}" ) \
&& \
apt-ftparchive release . > Release && \
"${COMPRESS}" "${COMPRESSOPTS}" < Release > "Release.${COMPRESSEXT}"

gpg --armor --detach-sign --output Release.gpg Release