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authorSergey Poznyakoff <gray@gnu.org.ua>2012-05-17 14:55:57 +0300
committerSergey Poznyakoff <gray@gnu.org.ua>2012-05-17 15:05:46 +0300
commit6b8fa542771cc9a93a9ecdfb20da9cea0781f1c4 (patch)
treee9998bd888fb29829e013a2de825a74b6e8db87d /restore.in
downloadbeam-6b8fa542771cc9a93a9ecdfb20da9cea0781f1c4.tar.gz
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Initial import
Diffstat (limited to 'restore.in')
-rw-r--r--restore.in167
1 files changed, 167 insertions, 0 deletions
diff --git a/restore.in b/restore.in
new file mode 100644
index 0000000..c112cb6
--- /dev/null
+++ b/restore.in
@@ -0,0 +1,167 @@
+#! /bin/bash
+
+libdir=@LIBDIR@/backup
+set -e
+. $libdir/common.sh
+set +e
+
+load_config
+taroptions="$backup_tar_options $backup_rsh_command"
+
+# Options
+root=/
+verbose=
+logfile=
+dry_run=
+listonly=
+confirm=1
+
+guess_round() {
+ case $1 in
+ Sun|Mon|Tue)
+ round=0;;
+ Wed|Thu)
+ round=1;;
+ Fri|Sat)
+ round=2;;
+ *)
+ echo >&2 "$0: invalid day of week ($1)"
+ exit 1
+ esac
+}
+
+guess_level() {
+ case $1 in
+ Sun)
+ level=0;;
+ Mon|Wed|Fri)
+ level=1;;
+ Tue|Thu|Sat)
+ level=2;;
+ *)
+ echo >&2 "$0: invalid day of week ($1)"
+ exit 1
+ esac
+}
+
+getyn() {
+ echo -n "$0:" $* " [Y/n]? "
+ read
+ case $REPLY in
+ ''|y*|Y*) REPLY=y;;
+ *) REPLY=n;;
+ esac
+}
+
+help() {
+ cat <<EOT
+usage: restore [OPTIONS] [ITEM [ITEM...]]
+restores this system from a backup
+
+OPTIONS:
+ -c, --confirm do not ask for confirmation; run straight into restoring
+ -C, --directory DIR restore into directory DIR instead of $root
+ -v, --verbose increase verbosity
+ -n, --dry-run do nothing, print what would have been done
+ -t, --list list archives, instead of extracting
+ -l, --logfile FILE log to FILE
+ -L, --level N set incremental dump level to stop at
+ -R, --round N use archives from incremental round N
+ -W, --week N use archives from week N
+ -h, --help produce this help list
+
+Valid ITEMs are: $backup_items
+EOT
+ exit 0
+}
+
+while [ $# -ne 0 ]
+do
+ case $1 in
+ -C|--directory) shift; root=$1;;
+ -c|--confirm) confirm=0;;
+ -v|--verbose) verbose="$verbose -v";;
+ -t|--list) listonly=1;;
+ -l|--logfile) shift; logfile=$1; confirm=0;;
+ -n|--dry-run) dry_run=echo;;
+ -h|--help) help;;
+ -L|--level) shift; level=$1;;
+ -R|--round) shift; round=$1;;
+ -W|--week) shift; week=$1;;
+ --) shift; break;;
+ -*) echo >&2 "$0: unrecognized option $1"; exit 1;;
+ *) break;;
+ esac
+ shift
+done
+
+if [ -z "$listonly" ]; then
+ taroptions="$taroptions -x"
+else
+ taroptions="$taroptions -t"
+fi
+
+# Collect items to be restored.
+items=$*
+
+test -z "$items" && items="$backup_items"
+
+if [ -n "$logfile" ]; then
+ confirm=0
+ exec >>$logfile
+ exec 2>&1
+fi
+
+# Verify option consistency, guess missing values
+hour=$(date +%H)
+if [ $hour -gt 6 ]; then
+ thisweek=$(date +%U)
+ yestreen=$(date +%a)
+else
+ thisweek=$(date -d yesterday +%U)
+ yestreen=$(date -d yesterday +%a)
+fi
+
+if [ -z "$week" ]; then
+ week=$thisweek
+fi
+if [ -z "$round" ]; then
+ if [ $week = $thisweek ]; then
+ guess_round $yestreen
+ else
+ round=2
+ fi
+fi
+if [ -z "$level" ]; then
+ if [ $week = $thisweek ]; then
+ guess_level $yestreen
+ else
+ # FIXME: A better guess?
+ level=2
+ fi
+fi
+
+echo "$0: target root directory $root"
+echo "$0: items to be restored: $items"
+echo "$0: restoring from week $week, round $round, level $level"
+
+if [ $confirm -ne 0 ]; then
+ getyn "Do you wish to proceed"
+ test $REPLY = "n" && exit 0
+fi
+
+$prologue_hook
+
+logit "started"
+
+for item in $items
+do
+ eval type=\$${item}_type
+ ${type}_restore $item
+done
+
+$epilogue_hook
+
+logit "finished"
+
+

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