Llewellyn/Tomb
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removed backup

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was just an experiment and not interesting
users can better choose their own backup system
and be in complete control of the process
This commit is contained in:
Jaromil 2011-04-27 20:59:49 +02:00
parent 3a8c90ee9b
commit 27a8bf2830
1 changed files with 0 additions and 87 deletions
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src/tomb
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@ -633,92 +633,6 @@ exec_safe_post_hooks() {
fi
}
backup_tomb() { # FIXME - duplicity asks passwords too often
# using duplicity
which duplicity > /dev/null
if [ $? != 0 ]; then
error "duplicity not found, can't operate backup"
return 1
fi
if [ -z $CMD3 ]; then
error "backup command needs 2 arguments: tomb and destination url"
error "please refer to tomb(1) and duplicity(1) manuals for more information"
return 1
fi
# is it a tomb?
get_arg_tomb ${CMD2}
if [ $? != 0 ]; then
error "there is no tomb to backup, operation aborted."
return 1
fi
# is it a url?
echo "${CMD3}" | grep -i -e '^.*:\/\/.*' 2>&1 > /dev/null
if ! [ $? = 0 ]; then
error "second argument is not a valid duplicity url."
error "read the tomb(1) and duplicity(1) manual for more information"
return 1
fi
bckurl=${CMD3}
# is it ssh?
protocol="`expr substr $bckurl 1 3`"
act "backup over protocol $protocol"
if [ "$protocol" = "ssh" ]; then
act "ssh connection requires a password"
FTP_PASSWORD="`exec_as_user ${TOMBEXEC} askpass $bckurl`"
dupopts="--ssh-askpass"
# TODO verify ssh access before duplicity does
# since it blocks the thing retrying 5 times and such crap
# i.e. try ssh true to sshurl="`echo $bckurl | sed -e 's/ssh:\/\///'`"
# --no-print-statistics
fi
# duplicity works only on directories
# so we create a directory in tmpfs and bind the tomb inside it
# during backup the encrypted tomb will be exposed
# TODO: check that the tomb is not mounted and, if mounted
# remount it read-only so it doesn't gets modified during bck
bckname=${tombname}.bck
mkdir -p /dev/shm/${bckname}
if [ $? != 0 ]; then
error "cannot generate a temporary backup directory in /dev/shm, operation aborted."
return 1
fi
bcktmpdir=/dev/shm/${bckname}
# mmm, maybe we should mount our own tmpfs? we need root anyway for mount -o bind
# if we reach to eliminate this mount trick and upload only one file with duplicity
# then this function doesn't needs to be root to work.
touch ${bcktmpdir}/${tombfile}
mount -o bind ${tombdir}/${tombfile} ${bcktmpdir}/${tombfile}
bcklast=`exec_as_user duplicity \
${(s: :)dupopts} \
collection-status ${bckurl} \
| awk '/^Last full backup date:/ { print $5 }'`
# we detect if backup already exists or not so we can handle
# password prompt (choosing a password for full, inserting for incr)
if [ "$bcklast" = "none" ]; then
notice "Creating a backup of tomb $tombname on url $bckurl"
exec_as_user FTP_PASSWORD="$FTP_PASSWORD" duplicity ${(s: :)dupopts} \
full ${bcktmpdir} ${bckurl}
else
notice "Updating a backup of tomb $tombname on url $bckurl"
exec_as_user FTP_PASSWORD="$FTP_PASSWORD" duplicity ${(s: :)dupopts} \
incr ${bcktmpdir} ${bckurl}
fi
unset FTP_PASSWORD
if [ $? != 0 ]; then
error "duplicity reported error, operation aborted"
umount ${bcktmpdir}/${tombfile}
return 1
fi
notice "Operation successful."
umount ${bcktmpdir}/${tombfile}
return 0
}
umount_tomb() {
local tombs how_many_tombs
local pathmap mapper tombname tombmount loopdev
@ -973,7 +887,6 @@ main () {
return 1
fi
decode_key ${CMD2} ;;
backup) check_priv ; backup_tomb ${CMD2} ${CMD3} ;;
install) check_priv ; install_tomb ;;
askpass) ask_password $CMD2 ;;
status) tomb-status ;;