--- /dev/null
+#! /bin/sh
+# This program is part of GNU tar
+# Copyright 2004, Free Software Foundation
+#
+# 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; either version 1, or (at your option)
+# any later version.
+#
+# 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., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+PROGNAME=`basename $0`
+CONFIGPATH="$SYSCONFDIR/backup"
+REMOTEBACKUPDIR="$SYSCONFDIR/tar-backup"
+CONFIGFILE=${CONFIGPATH}/backup-specs
+DIRLIST=${CONFIGPATH}/dirs
+FILELIST=${CONFIGPATH}/files
+LOGPATH=${CONFIGPATH}/log
+
+# Default functions for running various magnetic tape commands
+mt_begin() {
+ mt -f "$1" retension
+}
+
+mt_rewind() {
+ mt -f "$1" rewind
+}
+
+mt_offline() {
+ mt -f "$1" offl
+}
+
+mt_status() {
+ mt -f "$1" status
+}
+
+# The main configuration file may override any of these variables
+MT_BEGIN=mt_begin
+MT_REWIND=mt_rewind
+MT_OFFLINE=mt_offl
+MT_STATUS=mt_status
+
+# Insure `mail' is in PATH.
+PATH="/usr/ucb:${PATH}"
+export PATH
+# Put startdate in the subject line of mailed report, since if it happens
+# to run longer than 24 hours (as may be the case if someone forgets to put
+# in the next volume of the tape in adequate time), the backup date won't
+# appear too misleading.
+startdate="`date`"
+here="`pwd`"
+# Save local hostname
+localhost="`hostname | sed -e 's/\..*//' | tr A-Z a-z`"
+
+# Produce a diagnostic output
+message() {
+ if [ "$VERBOSE" != "" ]; then
+ if [ $VERBOSE -ge $1 ]; then
+ shift
+ echo "$@" >&2
+ fi
+ fi
+}
+
+# Bail out and exit.
+bailout() {
+ echo "$PROGNAME: $*" >&2
+ exit 1
+}
+
+# Return current date
+now() {
+#IF_DATE_FORMAT_OK
+ date +%Y-%m-%d
+#ELSE_DATE_FORMAT_OK
+ LC_ALL=C date | \
+ sed 's/[^ ]* *\([^ ]*\) *\([^ ]*\).* \([^ ]*\)$/\3-\1-\2/
+ /-[0-9]$/s/\([0-9]\)$/0\1/
+ /Jan/{s/Jan/01/p;q;}
+ /Feb/{s/Feb/02/p;q;}
+ /Mar/{s/Mar/03/p;q;}
+ /Apr/{s/Apr/04/p;q;}
+ /May/{s/May/05/p;q;}
+ /Jun/{s/Jun/06/p;q;}
+ /Jul/{s/Jul/07/p;q;}
+ /Aug/{s/Aug/08/p;q;}
+ /Sep/{s/Sep/09/p;q;}
+ /Oct/{s/Oct/10/p;q;}
+ /Nov/{s/Nov/11/p;q;}
+ /Dec/{s/Dec/12/p;q;}'
+#ENDIF_DATE_FORMAT_OK
+}
+
+# Bail out if we don't have root privileges.
+test_root() {
+ if [ ! -w ${ROOT_FS-/} ]; then
+ bailout "The backup must be run as root or else some files will fail to be dumped."
+ fi
+}
+
+advice() {
+ echo "Directory $1 is not found." >&2
+ cat >&2 <<EOF
+The following directories and files are needed for the backup to function:
+
+1. Directory with configuration files and file lists:
+$CONFIGPATH
+2. Directory for backup log files
+$LOGPATH
+3. Main configuration file
+$CONFIGFILE
+
+Please, create these and invoke the script again.
+EOF
+}
+
+init_common() {
+ # Check if the necessary directories exist
+ if [ ! -d $CONFIGPATH ]; then
+ advice $CONFIGPATH
+ exit 1
+ fi
+ if [ ! -d $LOGPATH ]; then
+ if mkdir $LOGPATH; then
+ :
+ else
+ advice $LOGPATH
+ exit 1
+ fi
+ fi
+ # Get the values of BACKUP_DIRS, BACKUP_FILES, and other variables.
+ if [ ! -r $CONFIGFILE ]; then
+ echo "$PROGNAME: cannot read $CONFIGFILE. Stop." >&2
+ exit 1
+ fi
+ . $CONFIGFILE
+
+ # Environment sanity check
+
+ test_root
+
+ if [ x"${ADMINISTRATOR}" = x ]; then
+ bailout "ADMINISTRATOR not defined"
+ fi
+
+ [ x"$TAR" = x ] && TAR=tar
+ [ x"$SLEEP_TIME" = x ] && SLEEP_TIME=60
+
+ if [ x$VOLNO_FILE = x ]; then
+ bailout "VOLNO_FILE not specified"
+ fi
+
+ if [ -r $DIRLIST ]; then
+ BACKUP_DIRS="$BACKUP_DIRS `cat $DIRLIST`"
+ fi
+ if [ -r $FILELIST ]; then
+ BACKUP_FILES="$BACKUP_FILES `cat $FILELIST`"
+ fi
+
+ if [ \( x"$BACKUP_DIRS" = x \) -a \( x"$BACKUP_FILES" = x \) ]; then
+ bailout "Neither BACKUP_DIRS nor BACKUP_FILES specified"
+ fi
+ if [ "$RSH" = "" ]; then
+ RSH=rsh
+ fi
+ POSIXLY_CORRECT=1
+ export POSIXLY_CORRECT
+}
+
+init_backup() {
+ init_common
+ TAR_PART1="${TAR} -c --format=gnu --multi-volume --one-file-system --sparse --volno-file=${VOLNO_FILE}"
+ if [ "x$XLIST" != x ]; then
+ TAR_PART1="${TAR_PART1} \`test -r $REMOTEBACKUPDIR/$XLIST && echo \"--exclude-from $REMOTEBACKUPDIR/$XLIST\"\`"
+ fi
+ if [ "$RSH_COMMAND" != "" ]; then
+ TAR_PART1="${TAR_PART1} --rsh-command=$RSH_COMMAND"
+ fi
+ if [ x$BLOCKING != x ]; then
+ TAR_PART1="${TAR_PART1} --blocking=${BLOCKING}"
+ fi
+
+ # Only use --info-script if DUMP_REMIND_SCRIPT was defined in backup-specs
+ if [ "x${DUMP_REMIND_SCRIPT}" != "x" ]; then
+ TAR_PART1="${TAR_PART1} --info-script='${DUMP_REMIND_SCRIPT}'"
+ fi
+ # Set logfile name
+ # Logfile name should be in the form ``log-1993-03-18-level-0''
+ # They go in the directory `@sysconfdir@/log'.
+ # i.e. year-month-date. This format is useful for sorting by name, since
+ # logfiles are intentionally kept online for future reference.
+ LOGFILE="${LOGPATH}/log-`now`-level-${DUMP_LEVEL}"
+}
+
+init_restore() {
+ init_common
+ # FIXME: Replace --list with --extract
+ TAR_PART1="${TAR} --extract --multi-volume"
+ if [ "$RSH_COMMAND" != "" ]; then
+ TAR_PART1="${TAR_PART1} --rsh-command=$RSH_COMMAND"
+ fi
+ if [ x$BLOCKING != x ]; then
+ TAR_PART1="${TAR_PART1} --blocking=${BLOCKING}"
+ fi
+
+ # Only use --info-script if DUMP_REMIND_SCRIPT was defined in backup-specs
+ if [ "x${DUMP_REMIND_SCRIPT}" != "x" ]; then
+ TAR_PART1="${TAR_PART1} --info-script='${DUMP_REMIND_SCRIPT}'"
+ fi
+ LOGFILE="${LOGPATH}/restore-`now`"
+}
+
+wait_time() {
+ if [ "${1}" != "now" ]; then
+ if [ "${1}x" != "x" ]; then
+ spec="${1}"
+ else
+ spec="${BACKUP_HOUR}"
+ fi
+
+ pausetime="`date | awk -v spec=\"${spec}\" '
+ BEGIN {
+ split(spec, time, ":")
+ }
+ {
+ split($4, now, ":")
+ diff = 3600 * (time[1] - now[1]) + 60 * (time[2] - now[2]);
+ if (diff < 0)
+ diff += 3600 * 24
+ print diff
+ }'`"
+ clear
+ echo "${SLEEP_MESSAGE}"
+ sleep "${pausetime}"
+ fi
+}
+
+level_log_name() {
+ echo "$REMOTEBACKUPDIR/${1}.level-${2-$DUMP_LEVEL}"
+}
+
+# Prepare a temporary level logfile
+# usage: make_level_log HOSTNAME
+make_level_log() {
+ if [ "z${localhost}" != "z$1" ] ; then
+ $RSH "$1" mkdir $REMOTEBACKUPDIR > /dev/null 2>&1
+ $RSH "$1" rm -f `level_log_name temp`
+ else
+ mkdir $REMOTEBACKUPDIR > /dev/null 2>&1
+ rm -f `level_log_name temp`
+ fi
+}
+
+# Rename temporary log
+# usage: flush_level_log HOSTNAME FSNAME
+flush_level_log() {
+ message 10 "RENAME: `level_log_name temp` --> `level_log_name $2`"
+ if [ "z${localhost}" != "z$1" ] ; then
+ $RSH "$1" mv -f `level_log_name temp` "`level_log_name $2`"
+ else
+ mv -f `level_log_name temp` "`level_log_name $2`"
+ fi
+}
+
+# Return the timestamp of the last backup.
+# usage: get_dump_time LEVEL
+get_dump_time() {
+ ls -r ${LOGPATH}/log-*-level-$1 \
+ | head -1 \
+ | sed "s,.*log-\(.*\)-level-$1,\1,"
+}
+
+# Do actual backup on a host
+# usage: backup_host HOSTNAME [TAR_ARGUMENTS]
+backup_host() {
+ message 10 "ARGS: $@"
+ rhost=$1
+ shift
+ if [ "z${localhost}" != "z$rhost" ] ; then
+ $RSH "$rhost" ${TAR_PART1} -f "${localhost}:${TAPE_FILE}" $@
+ else
+ # Using `sh -c exec' causes nested quoting and shell substitution
+ # to be handled here in the same way rsh handles it.
+ CMD="exec ${TAR_PART1} -f \"${TAPE_FILE}\" $@"
+ message 10 "CMD: $CMD"
+ sh -c "$CMD"
+ message 10 "RC: $?"
+ fi
+}
+
+print_level() {
+ if [ ${1-$DUMP_LEVEL} -eq 0 ]; then
+ echo "Full"
+ else
+ echo "Level ${1-$DUMP_LEVEL}"
+ fi
+}
+
+prev_level() {
+ print_level `expr $DUMP_LEVEL - 1` | tr A-Z a-z
+}
+
+remote_run() {
+ rhost=$1
+ shift
+ message 10 "REMOTE $rhost: $@"
+ if [ "x$rhost" != "x${localhost}" ] ; then
+ $RSH "${rhost}" "$@"
+ else
+ $*
+ fi
+}
+
+license() {
+ cat - <<EOF
+ This program is part of GNU tar
+ Copyright 2004, Free Software Foundation
+
+ 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; either version 1, or (at your option)
+ any later version.
+
+ 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., 59 Temple Place - Suite 330, Boston, MA
+ 02111-1307, USA.
+EOF
+}
projects / chaz / tar / commitdiff
