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Diffstat (limited to 'package/aufs2-util/src/aubrsync')
| -rwxr-xr-x | package/aufs2-util/src/aubrsync | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/package/aufs2-util/src/aubrsync b/package/aufs2-util/src/aubrsync deleted file mode 100755 index 54adac9cb..000000000 --- a/package/aufs2-util/src/aubrsync +++ /dev/null @@ -1,304 +0,0 @@ -#!/bin/sh - -# Copyright (C) 2005-2009 Junjiro Okajima -# -# This program, aufs 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 2 of the License, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - -# -# The development of this script is sponcered by ASUSTek Computer Inc. -# Kindly they agreed that I keep my aufs work as free software as it has -# been. -# - -set -eu -#set -x - -me=$(basename $0) -EEcho() # str -{ - echo ${me}: $@ 1>&2 -} - -f=/sbin/mount.aufs -test ! -x $f && EEcho $f is not installed && exit 1 - -# special handling for backward compatibility. -# -# aufs in the donated eeepc is aufs1 20080211 without CONFIG_AUFS_COMPAT. -# /etc/default/aufs was introduced in aufs1 20080922. -# shwh/noshwh was introduced in aufs1 20080310 with CONFIG_AUFS_SHWH. -# noshwh became always available regardless CONFIG_AUFS_SHWH in aufs1 20081117. - -noshwh=1 -AUFS_VERSION=20080211 -f=/etc/default/aufs -if [ -s $f ] -then - . $f -else - echo ${me}: warning, broken $f, assuming aufs is $AUFS_VERSION - f=/usr/lib/aufs.shlib - test ! -s $f && EEcho $f is not installed && exit 1 - . $f - - case $AUFS_VERSION in - 200*) # aufs1 - test $AUFS_VERSION -lt 20081117 && noshwh=0 - ;; - esac - AUFS_SUPER_MAGIC=1635083891 - AUFS_SUPER_MAGIC_HEX=0x61756673 - AUFS_WH_PFX=.wh. - AUFS_WH_PFX2=.wh..wh. - AUFS_WH_DIROPQ=.wh..wh..opq -fi - -######################################## - -_Rsync="rsync --exclude=lost+found" -Rsync="$_Rsync -aHSx --devices --specials --delete-before" -Copy="$Rsync" -Move="$Copy" -RsyncWh="$_Rsync -ptgoHx" - -FindForRm() # rw -{ - echo "find \"$1\" -xdev -depth \( - \( ! -type d - \( -name $AUFS_WH_DIROPQ - -o ! -name ${AUFS_WH_PFX2}\* \) \) - -o \( -type d - ! -name ${AUFS_WH_PFX2}\* - ! -wholename \"$1\" - ! -wholename \"$1/lost+found\" \) - \) -print0" -} - -MoveWh() # rw ro+wh -{ - cd "$1" - find . -xdev -name ${AUFS_WH_PFX}\* ! -name ${AUFS_WH_PFX2}\* \ - -printf '%P\n' | - while read wh - do - f=$(echo "$wh" | sed -e ' - s/^'${AUFS_WH_PFX}'// - t - s:/'${AUFS_WH_PFX}':/: - ') - test -e "$dst/$f" || echo "$wh" - done | - # -v - $RsyncWh --files-from=- ./ "$2" - cd "$OLDPWD" -} - -copy() -{ - $Copy $@ "$mntpnt"/ "$dst" -} - -_move() -{ - set +x - test $hinotify -ne 1 && echo ${me}: warning, -i is not specified - src_is_nfs=0 - test $(stat -f -c %T "$src") = nfs && src_is_nfs=1 - set $quiet - - $Move $@ && - eval $(FindForRm "$src") | - { - if [ $src_is_nfs -eq 1 ] - then - mount -o remount "$mntpnt" - mount -o remount "$src" - fi - xargs -r0 rm -fr #-v - } -} - -move() -{ - _move $@ "$mntpnt"/ "$dst" -} - -move_with_wh() -{ - { - set +x - MoveWh "$src" "$dst" - set $quiet - } && - move --exclude=${AUFS_WH_PFX}\* -} - -# backward compatibility -move_w() -{ - move_with_wh $@ -} - -Usage() -{ - t=$(FindForRm src_branch | sed -e ' - s/"//g - $b - s/$/ \\/') - - cat <<- EOF - $me Options move | move_with_wh | copy \\ - mntpnt src_branch dst_branch [ options for rsync ] - - generic form: - $me [ -w | --wh ] [ -i | --inotify ] Options \\ - mntpnt cmd [ parameters for cmd ] - - Options: - [ -n | --dry_run ] - [ -q | --quiet ] - - The dst_branch must be mounted as writable. - During the operation, the mntpnt is set readonly. - If you are opening a file for writing on the writable branch, - you need to close the file before invoking this script. - The -w or --wh option requires CONFIG_AUFS_SHWH enabled. - The -i or --inotify option requires CONFIG_AUFS_HINOTIFY enabled. - - 'copy' is a shortcut for - $me mntpnt \\ - $Copy mntpnt/ dst_branch - 'move' is a shortcut for - $me mntpnt \\ - "$Move \\ - mntpnt/ dst_branch && \\ - $t |\\ - xargs -r0 rm -fr" - Note: in most cases, you will need '-i' option, and - find(1) is invoked by $me only when rsync(1) - succeded. - 'move_with_wh' is a simple variation of 'move' which moves - whiteouts separately before the actual 'move'. - - If you execute this script under linux-2.6.24 or earlier, the - kernel may produce a harmless warning "inotify.c:NNN - set_dentry_child_flags()". The message was already removed in - linux-2.6.25. - - examples: - - Copy and reflect all the modification (modifed files, newly - created and removed ones) in the upper branch to the lower - branch. This operation is for aufs which has only 2 branches, - and mainly for a system shutdown script. - All files on the upper branch remain. - - $ sudo $me copy /your/aufs /your/upper_branch /your/lower_branch - - - Like above (2 branches), move and reflect all modifications - from upper to lower. Almost all files on the upper branch will - be removed. You can still use this aufs after the - operation. But the inode number may be changed. If your - application which depends upon the inode number was running at - that time, it may not work correctly. - - $ sudo $me move /your/aufs /your/upper_branch /your/lower_branch - EOF - -# - Like above (2 branches), generate a new middle layer like a -# snapshot including whiteouts and make the upper_branch almost -# empty, but untouch the lower_branch. -# -# $ img=/hda1/a.ext2 -# $ dd if=/dev/zero of=\$img bs=4k count=1k -# $ mkfs -t ext2 -F \$img -# $ sudo mount -o rw,loop \$img /your/new_branch -# $ sudo mount -o remount,ins:1:/your/new_branch=ro+wh /your/aufs -# $ sudo $me _move /your/aufs /your/upper_branch /your/lower_branch \\ -# "--remove-source-files \\ -# --exclude=$AUFS_WH_BASE \\ -# --exclude=$AUFS_WH_PLINKDIR \\ -# --exclude=$AUFS_WH_TMPDIR \\ -# /your/upper_branch/ /your/new_branch; \\ -# mount -o remount,ro /your/new_branch" -# EOF -} - -######################################## - -wh=0 -hinotify=0 -quiet=-x -dry_run= -cmd= -cmd_opts= -for i -do - case $i in - -w|--wh) wh=1;; - -i|--inotify) hinotify=1;; - -n|--dry_run) dry_run=echo;; - -q|--quiet) quiet=+x;; - -h|--help) Usage; exit 0;; - --) shift; break;; - *) break;; - esac - shift -done - -test $# -lt 2 && Usage 1>&2 && exit 1 -case "$1" in -_move|move|copy|move_w|move_with_wh) - test $# -lt 4 && Usage 1>&2 && exit 1 - cmd=$1 - SetDir mntpnt "$2" - SetDir src "$3" - SetDir dst "$4" - shift 4 - wh=0 - ;; -*) - SetDir mntpnt "$1" - cmd="$2" - shift 2 - ;; -esac -cmd_opts="$@" - -case $(stat -f -c %T "$mntpnt") in -aufs|UNKNOWN*${AUFS_SUPER_MAGIC_HEX}*) ;; -*) - EEcho "$mntpnt" is not aufs - exit 1 - ;; -esac - -cur_opts=$(MntOpts "$mntpnt") -test ! "$cur_opts" && -EEcho bad /proc/mounts or "$mntpnt" is not mounted && -exit 1 -cur_opts="udba=reval,noshwh,$cur_opts" -test $noshwh -eq 0 && cur_opts=$(echo $cur_opts | sed -e 's/,noshwh//') - -# force flushing the pusedo-links -tmp_opts="remount,ro,udba=reval,noshwh" -test $noshwh -eq 0 && tmp_opts=$(echo $tmp_opts | sed -e 's/,noshwh//') -test $wh -eq 1 && tmp_opts="$tmp_opts,shwh" -test $hinotify -eq 1 && tmp_opts="$tmp_opts,udba=inotify" - -# here we go -trap "$dry_run mount -o remount,$cur_opts \"$mntpnt\"" EXIT -set $quiet -$dry_run mount -o $tmp_opts "$mntpnt" -eval "$dry_run $cmd $cmd_opts" |