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|
#! /bin/bash
set -e
set -u
# runmirrors script for Debian
# Based losely on existing scripts, written by an unknown number of
# different people over the years.
#
# Copyright (C) 2008 Joerg Jaspert <joerg@debian.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
# In case the admin somehow wants to have this script located someplace else,
# he can set BASEDIR, and we will take that. If it is unset we take ${HOME}
BASEDIR=${BASEDIR:-"${HOME}"}
NAME="`basename $0`"
# In case we are called with an argument we look for a different configuration.
if [ -n "$1" ]; then
NAME="${NAME}-$1"
fi
# Read our config file
. ${BASEDIR}/etc/${NAME}.conf
# Make sure some variables are always in the environment
export HOME LOGNAME USER PATH BASEDIR
# Source our common functions
. ${BASEDIR}/etc/common
# Set sane defaults if the configfile didn't do that for us.
# The directory for our logfiles
LOGDIR=${LOGDIR:-"${BASEDIR}/log"}
# Our own logfile
LOG=${LOG:-"${LOGDIR}/${NAME}.log"}
# Our lockfile directory
LOCKDIR=${LOCKDIR:-"${BASEDIR}/locks"}
# How to rotate the log
SAVELOG=${SAVELOG:-"savelog -t -c 14"}
# Amount of delay between mirrors if the mirror file contains a DELAY
DELAY=${DELAY:-"60"}
# Our mirrorfile
MIRRORS=${MIRRORS:-"${BASEDIR}/etc/${NAME}.mirror"}
# used by log()
PROGRAM=${PROGRAM:-"${NAME}-$(hostname -s)"}
# extra ssh options we might want hostwide
SSH_OPTS=${SSH_OPTS:-""}
# Some sane defaults
cd ${BASEDIR}
umask 022
# Make sure we have our log and lock directories
mkdir -p ${LOGDIR}
mkdir -p ${LOCKDIR}
trap 'log "Mirrorpush done" >> ${LOG}; ${SAVELOG} "${LOG}" > /dev/null' EXIT
log "Pushing leaf mirrors" >> ${LOG}
if [ -n "${HOOK1}" ]; then
log "Running hook1: ${HOOK1}" >> ${LOG}
${HOOK1}
result=$?
log "Back from hook1, got returncode ${result}" >> ${LOG}
fi
# From here on we do *NOT* want to exit on errors. We don't want to
# stop pushing mirrors just because we can't reach one of them.
set +e
# Built up our list of 2-stage mirrors.
PUSHLOCKS=""
egrep '^staged' ${MIRRORS} |
while read MTYPE MLNAME MHOSTNAME MUSER MPROTO MKEYFILE; do
PUSHLOCKS="${PUSHLOCKS} ${LOCKDIR}/${MLNAME}.stage1"
done
# Now read our mirrorfile and push the mirrors defined in there.
# We use grep to easily sort out all lines having a # in front of them or are empty.
egrep -v '^[[:space:]]*(#|$)' ${MIRRORS} |
while read MTYPE MLNAME MHOSTNAME MUSER MPROTO MKEYFILE; do
if [ "x${MTYPE}x" = "xDELAYx" ]; then
# We should wait a bit.
log "Delay of ${DELAY} seconds requested, sleeping" >> ${LOG}
sleep ${DELAY}
continue
fi
# Process the two options that can be left blank in the config
if [ -z ${MPROTO} ]; then
MPROTO=2
fi
if [ -z ${MKEYFILE} ]; then
MKEYFILE="${BASEDIR}/${KEYFILE}"
fi
# Now, people can do stupid things and leave out the protocol, but
# define a keyfile...
if [ ${MPROTO} -ne 1 ] && [ ${MPROTO} -ne 2 ]; then
error "Need a correct ssh protocol version for ${MLNAME}, skipping" >> ${LOG}
continue
fi
# Built our array
SIGNAL_OPTS=(
MIRROR="${MLNAME}"
HOSTNAME="${MHOSTNAME}"
USERNAME="${MUSER}"
SSHPROTO="${MPROTO}"
SSHKEY="${MKEYFILE}"
PUSHLOCKOWN="${LOCKDIR}/${MLNAME}.stage1"
PUSHTYPE="${MTYPE}"
)
# And finally, push the mirror
log "Trigger ${MLNAME}" >> ${LOG}
signal "${SIGNAL_OPTS}" &
log "Trigger for ${MLNAME} done" >> ${LOG}
if [ -n "${HOOK2}" ]; then
log "Running hook2: ${HOOK2}" >> ${LOG}
${HOOK1}
result=$?
log "Back from hook2, got returncode ${result}" >> ${LOG}
fi
done
if [ -n "${HOOK3}" ]; then
log "Running hook3: ${HOOK3}" >> ${LOG}
${HOOK3}
result=$?
log "Back from hook3, got returncode ${result}" >> ${LOG}
fi
exit 0
|
