aboutsummaryrefslogtreecommitdiffstats
path: root/lbu
diff options
context:
space:
mode:
authorNatanael Copa <ncopa@alpinelinux.org>2006-10-14 09:31:03 +0000
committerNatanael Copa <ncopa@alpinelinux.org>2006-10-14 09:31:03 +0000
commitccaf94592342255f3f0692c242196fb157a48137 (patch)
treeead59f55d6eedb39843ff755962e03a25e3f78c6 /lbu
downloadalpine-conf-ccaf94592342255f3f0692c242196fb157a48137.tar.bz2
alpine-conf-ccaf94592342255f3f0692c242196fb157a48137.tar.xz
intial import - version 0.6.0
Diffstat (limited to 'lbu')
-rw-r--r--lbu371
1 files changed, 371 insertions, 0 deletions
diff --git a/lbu b/lbu
new file mode 100644
index 0000000..f7ee4bf
--- /dev/null
+++ b/lbu
@@ -0,0 +1,371 @@
+#!/bin/sh
+
+# lbu - utility to create local backups.
+# Copyright (c) 2006 Natanael Copa
+# May be distributed under GPL2
+
+PREFIX=
+. $PREFIX/lib/libalpine.sh
+# this one is from apk-tools
+. $PREFIX/lib/apk/libutil.sh
+
+VERSION=0.6_beta1
+[ "$SFIC" ] && SFIC="$SFIC -i d"
+
+# globals
+CURRENT_TDB="$APK_CACHE/current.tdb"
+TMPCURRENT_TDB="$APK_CACHE/tmp-current.tdb"
+COMMITED_TDB="$APK_CACHE/commited.tdb"
+
+EXCLUDE_LIST=/etc/lbu/exclude
+INCLUDE_LIST=/etc/lbu/include
+
+MASK="Npugsh"
+
+LBUDIRS=`echo "$APK_LBUDIRS" | sed 's/:/ /g'`
+
+retcode=0
+usage() {
+ echo "$PROGRAM $VERSION"
+ echo "usage: $PROGRAM <subcommand> [options] [args]
+
+Available subcommands:
+ commit (ci)
+ exclude (ex, delete)
+ include (inc, add)
+ status (stat, st)
+ update (up)
+
+Common options:
+ -h Show help for subcommand.
+ -q Quiet mode.
+ -v Verbose mode.
+"
+ exit 1
+}
+
+
+#gen_temp_tdb() {
+# # generate temp tdb
+# local opwd="$PWD"
+# rm -f "$TMP_TDB"
+# cd "$ROOT"
+# $SFIC -R --add "$TMP_TDB" $LBUDIRS
+# cd "$opwd"
+#}
+
+gen_current_tdb() {
+# [ -f "$TMP_TDB" ] || gen_temp_tdb
+ # generate current tdb
+ rm -f "$CURRENT_TDB"
+ $SFIC -R -t --mask "$MASK" --old "$APK_DEFAULT_TDB" $LBUDIRS \
+ | grep -v ^D | awk '{print $2}' | $SFIC --add $CURRENT_TDB --file -
+}
+
+# list_add(char *listfile, char* file...)
+list_add() {
+ local list="$1"
+ shift
+ mkdir -p `dirname "$list"`
+ while [ $# -gt 0 ] ; do
+ filename=`echo "$1" | sed 's:^/\+::'`
+ if grep "^$filename$" "$list" >/dev/null 2>&1 ; then
+ [ "$VERBOSE" ] echo "$filename is already in $list."
+ else
+ [ "$VERBOSE" ] && echo "Adding $filename to $list."
+ echo "$filename" >> "$list"
+ fi
+ shift
+ done
+}
+
+# list_delete(char *listfile, char *file...)
+list_delete() {
+ local list="$1"
+ local tmp="$list.old"
+ shift
+ [ -f "$list" ] || return 1
+ while [ $# -gt 0 ] ; do
+ filename=`echo "$1" | sed 's:^/\+::'`
+ mv "$list" "$tmp"
+ [ "$VERBOSE" ] && echo "Removing $filename from list."
+ grep -v "^$filename$" "$tmp" > "$list"
+ rm "$tmp"
+ shift
+ done
+}
+
+
+
+#
+# lbu_include - add/remove files to include list
+#
+usage_include() {
+ echo "$PROGRAM $VERSION
+usage: $PROGRAM include [-rv] <file> ...
+ $PROGRAM include [-v] -l
+
+Options:
+ -l List contents of include list.
+ -r Remove specified file(s) from include list instead of adding.
+ -v Verbose mode.
+"
+ exit 1
+}
+
+cmd_include() {
+ if [ "$LIST" ] ; then
+ [ $# -gt 0 ] && usage_include
+ show_include
+ return
+ fi
+
+ [ $# -lt 1 ] && usage_include
+ if [ "$REMOVE" ] ; then
+ list_delete "$INCLUDE_LIST" "$@"
+ else
+ list_add "$INCLUDE_LIST" "$@"
+ list_delete "$EXCLUDE_LIST" "$@"
+ fi
+}
+
+show_include() {
+ if [ -f "$INCLUDE_LIST" ] ; then
+ [ "$VERBOSE" ] && echo "Include files:"
+ cat "$INCLUDE_LIST"
+ fi
+}
+
+
+#
+# lbu_commit - commit config files to writeable media
+#
+usage_commit() {
+ echo "$PROGRAM $VERSION
+usage: $PROGRAM commit [-nv] [<media>]
+
+Options:
+ -n Don't commit, just show what would have been commited.
+ -v Verbose mode.
+
+The following values for <media> is supported: floppy usb
+If <media> is not specified, the environment variable LBU_MEDIA will be used.
+"
+ exit 1
+}
+
+cmd_commit() {
+ local media mnt was_mounted statuslist tmplist currentlist
+ local incl excl outfile
+
+ if [ "$1" ] ; then
+ media="$1"
+ else
+ media="$LBU_MEDIA"
+ fi
+ [ -z "$media" ] && usage_commit
+
+ mnt=/media/$media
+
+ [ -d $mnt ] || usage
+ was_mounted=`grep $mnt /proc/mounts`
+
+ cd "$ROOT"
+
+ # Automatically add list and modified files
+ currentlist=`VERBOSE="" USE_DEFAULT="-a" cmd_status -a | grep -v ^D | awk '{print $2}'`
+
+ if [ -z "$was_mounted" ]; then
+ mount $mnt || die "failed to mount $mnt."
+ fi
+
+ # we generate a tmpcurrent before we commit to avoid race condition
+ [ -f "$CURRENT_TDB" ] || $SFIC --add "$CURRENT_TDB" $currentlist
+
+ # commit files to archive
+ if [ "$DRYRUN" ] ; then
+ outfile=/dev/null
+ VERBOSE="-v"
+ else
+ outfile="$mnt/`hostname`.apkovl.tar.gz"
+ fi
+
+ [ -f "$EXCLUDE_LIST" ] && excl="-X $EXCLUDE_LIST"
+ [ -f "$INCLUDE_LIST" ] && incl="-T $INCLUDE_LIST"
+
+ if ! tar $VERBOSE $excl $incl -c $currentlist | gzip -c >"$outfile" ; then
+ rm -f "$CURRENT_TDB"
+ [ -z "$was_mounted" ] && umount $mnt
+ die "Problems creating archive. aborting"
+ fi
+
+ #cp /etc/alpine.conf $mnt
+ # we strip off the version number to make upgrades easier.
+ [ "$DRYRUN" ] || apk_info | sed 's/-[0-9].*//' > $mnt/packages.list
+
+ sync
+ sleep 1
+ [ -z "$was_mounted" ] && umount $mnt
+
+ # move current to commited.
+ [ "$DRYRUN" ] || mv "$CURRENT_TDB" "$COMMITED_TDB"
+}
+
+#---------------------------------------------------------------------------
+# lbu_exclude - add remove file(s) from exclude list
+
+usage_exclude() {
+ echo "$PROGRAM $VERSION
+usage: $PROGRAM exclude [-rv] <file> ...
+ $PROGRAM exclude [-v] -l
+
+Options:
+ -l List contents of exclude list.
+ -r Remove specified file(s) from exclude list instead of adding.
+ -v Verbose mode.
+"
+ exit 1
+}
+
+cmd_exclude() {
+ if [ "$LIST" ] ; then
+ [ $# -gt 0 ] && usage_exclude
+ show_exclude
+ return
+ fi
+
+ [ $# -lt 1 ] && usage_exclude
+ if [ "$REMOVE" ] ; then
+ list_delete "$EXCLUDE_LIST" "$@"
+ else
+ list_delete "$INCLUDE_LIST" "$@"
+ list_add "$EXCLUDE_LIST" "$@"
+ fi
+}
+
+show_exclude() {
+ if [ -f "$EXCLUDE_LIST" ] ; then
+ [ "$VERBOSE" ] && echo "Exclude files:"
+ cat "$EXCLUDE_LIST"
+ fi
+}
+
+#---------------------------------------------------------------------------
+# lbu_status - check what files have been changed since last save
+usage_status() {
+ echo "$PROGRAM $VERSION
+Check what files have been changed since last commit.
+
+usage: $PROGRAM status [-M <MASK>] [-av]
+
+Options:
+ -M Use a different mask for comparing. (see sfic -h)
+ -a Compare all files, not just since last commit.
+ -v Also show include and exclude lists.
+"
+ exit 1
+}
+
+cmd_status() {
+ cd "$ROOT"
+
+ [ "$SFIC" ] || die "Need sfic."
+ [ -f "$APK_DEFAULT_TDB" ] || die "$APK_DEFAULT_TDB not found."
+
+ # genereate temp tdb
+ #gen_temp_tdb
+
+ if [ -f "$COMMITED_TDB" ] && [ -z "$USE_DEFAULT" ]; then
+ # generate current tdb
+ gen_current_tdb
+ OLD="$COMMITED_TDB"
+ NEW="--new $CURRENT_TDB"
+ else
+ OLD="$APK_DEFAULT_TDB"
+ NEW="-R $LBUDIRS"
+ fi
+
+ $SFIC $QUIET $VERBOSE --mask "$MASK" -t --old "$OLD" $NEW
+ retcode=$?
+
+ if [ "$VERBOSE" ] ; then
+ echo ""
+ show_include
+ echo ""
+ show_exclude
+ fi
+}
+
+#------------------------------------------------
+# lbu_update - Update the database wihtout commit to media.
+usage_update() {
+ echo "$PROGRAM $VERSION
+Update the commited database without commit to media.
+
+usage: $PROGRAM update [-v] <file> ...
+
+Options:
+ -v Verbose mode.
+"
+ exit 1
+}
+
+cmd_update() {
+ [ $# -lt 1 ] && usage_update
+ cd "$ROOT"
+ for i in "$@" ; do
+ echo $i | sed 's:^/::'
+ done | lbu_filter | $SFIC $VERBOSE --add "$COMMITED_TDB" --file -
+}
+
+#-----------------------------------------------------------
+# Main
+
+cmd=`echo "$PROGRAM" | cut -s -d_ -f2`
+PROGRAM=`echo "$PROGRAM" | cut -d_ -f1`
+if [ -z "$cmd" ] ; then
+ cmd="$1"
+ [ -z "$cmd" ] && usage
+ shift
+fi
+
+# check for valid sub command
+case "$cmd" in
+ include|inc|add) SUBCMD="include";;
+ commit|ci) SUBCMD="commit";;
+ exclude|ex|delete) SUBCMD="exclude";;
+ status|stat|st) SUBCMD="status";;
+ update|up) SUBCMD="update";;
+ *) usage;;
+esac
+
+# parse common args
+while getopts "ahlM:nqrv" opt ; do
+ case "$opt" in
+ a) [ $SUBCMD = status ] || usage_$SUBCMD
+ USE_DEFAULT="-a"
+ ;;
+ h) usage_$SUBCMD
+ ;;
+ l) LIST="-l"
+ ;;
+ M) [ $SUBCMD = status ] || usage_$SUBCMD
+ MASK="$OPTARG"
+ ;;
+ n) [ $SUBCMD = commit ] || usage_$SUBCMD
+ DRYRUN="-n"
+ ;;
+ q) QUIET="$QUIET -q"
+ ;;
+ r) REMOVE="-r"
+ ;;
+ v) VERBOSE="$VERBOSE -v"
+ ;;
+ esac
+done
+shift `expr $OPTIND - 1`
+
+cmd_$SUBCMD "$@"
+# cleanup
+rm -f "$CURRENT_TDB"
+exit $retcode