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#!/bin/bash
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-src/portage/bin/Attic/emerge-webrsync,v 1.8.2.4 2005/02/26 11:22:38 carpaski Exp $
# Author: Karl Trygve Kalleberg <karltk@gentoo.org>
# Rewritten from the old, Perl-based emerge-webrsync script
GENTOO_MIRRORS="${GENTOO_MIRRORS} $(/usr/lib/portage/bin/portageq gentoo_mirrors)"
PORTDIR="$(/usr/lib/portage/bin/portageq portdir)"
FETCHCOMMAND="$(/usr/lib/portage/bin/portageq envvar FETCHCOMMAND)"
USERLAND="$(/usr/lib/portage/bin/portageq envvar USERLAND)"
DISTDIR="$(/usr/lib/portage/bin/portageq envvar PORTAGE_TMPDIR)/emerge-webrsync"
if [ ! -d $DISTDIR ] ; then
mkdir -p $DISTDIR
fi
cd "$DISTDIR"
found=0
if [ "$1" == "-v" ] ; then
wgetops=
else
#this sucks. probably better to do 1> /dev/null
#that said, waiting on the refactoring.
if [ "${FETCHCOMMAND/wget}" != "${FETCHCOMMAND}" ]; then
wgetops="-q"
elif [ "${FETCHCOMMAND/curl}" != "${FETCHCOMMAND}" ]; then
wgetops="-s -f"
fi
fi
if type -p md5sum > /dev/null; then
md5_com='md5sum -c "${FILE}.md5sum"'
elif type -p md5 > /dev/null; then
md5_com='[ "$(md5 -q ${FILE})" == "$(cut -d \ -f 1 ${FILE}.md5sum)" ]'
else
echo "warning, unable to do md5 verification of the snapshot!"
echo "no suitable md5/md5sum binary was found!"
md5_com='true'
fi
sync_local() {
echo Syncing local tree...
if ! tar jxf $FILE; then
echo "Tar failed to extract the image. Please review the output."
echo "Executed command: tar jxf $FILE"
exit 1
fi
rm -f $FILE
# Make sure user and group file ownership is root
chown -R 0:0 portage
cd portage
rsync -av --progress --stats --delete --delete-after \
--exclude='/distfiles' --exclude='/packages' \
--exclude='/local' . ${PORTDIR%%/}
cd ..
echo "cleaning up"
rm -rf portage
echo "transferring metadata/cache"
emerge metadata
}
echo "Fetching most recent snapshot"
declare -i attempts=-1
while (( $attempts < 40 )) ; do
attempts=$(( attempts + 1 ))
#this too, sucks. it works in the interim though.
if [ "$USERLAND" == "BSD" ] || [ "$USERLAND" == "Darwin" ] ; then
daysbefore=$(expr $(date +"%s") - 86400 \* $attempts)
day=$(date -r $daysbefore +"%d")
month=$(date -r $daysbefore +"%m")
year=$(date -r $daysbefore +"%Y")
else
day=$(date -d "-$attempts day" +"%d")
month=$(date -d "-$attempts day" +"%m")
year=$(date -d "-$attempts day" +"%Y")
fi
FILE_ORIG="portage-${year}${month}${day}.tar.bz2"
echo "Attempting to fetch file dated: ${year}${month}${day}"
got_md5=0
if [ ! -e "${FILE_ORIG}.md5sum" ]; then
FILE="${FILE_ORIG}.md5sum"
for i in $GENTOO_MIRRORS ; do
URI="${i}/snapshots/${FILE}"
if (eval "$FETCHCOMMAND $wgetops") && [ -s "${FILE}" ]; then
got_md5=1
break
fi
done
else
got_md5=1
fi
FILE="${FILE_ORIG}"
if (($got_md5 == 0 )); then
echo " --- No md5sum present on the mirror. (Not yet available.)"
continue
elif [ -s "${FILE}" ]; then
if eval "$md5_com"; then
echo " === snapshot $FILE is correct, using it"
sync_local
echo
echo " === Snapshot has beed sync'd"
echo
exit 0
else
rm $FILE
fi
fi
for i in $GENTOO_MIRRORS ; do
URI="${i}/snapshots/$FILE"
rm -f "$FILE"
if (eval "$FETCHCOMMAND $wgetops") && [ -s "$FILE" ]; then
if ! eval "$md5_com"; then
echo "md5 failed on $FILE"
rm ${FILE}
continue
else
sync_local
echo
echo " *** Completed websync, please now perform a normal rsync if possible."
echo " Update is current as of the of YYYYMMDD: ${year}${month}${day}"
echo
exit 0
fi
fi
done
done
rm -rf portage
exit 1
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