support new duplicity versions:

- general cleanup of dup handler
 - support remove-older-than command
 - also run "duplicity cleanup" before anything else, for safety reasons
 - migrated full/incremental backup switch to new syntax
ChangeLog: removed trailing space
This commit is contained in:
intrigeri 2008-01-14 20:32:19 +00:00
parent 18f6031a72
commit ef9e8e0dc2
2 changed files with 199 additions and 135 deletions

View File

@ -2,6 +2,14 @@ version 0.9.6 -- unreleased
backupninja changes
handler changes
dup:
. General cleanup
. Better support for new duplicity (>= 0.4.4) command line syntax:
run remove-older-than when $keep is not set to yes (Closes: #458816),
and run "duplicity cleanup" before any other duplicity command; both
only trigger a warning on failure, since they should not stop backups
from being done. Also migrated full/incremental backup switch to the
new syntax.
rdiff:
. Fixed ignore_version default value missing
. Add patch from Matthew Palmer to rdiff handler to incorporate sshoptions

View File

@ -31,11 +31,13 @@ getconf destdir
getconf destuser
destdir=${destdir%/}
[ "$destdir" != "" ] || fatal "Destination directory not set"
[ "$include" != "" ] || fatal "No source includes specified"
### SANITY CHECKS ##############################################################
### vservers stuff ###
[ -n "$destdir" ] || fatal "Destination directory not set"
[ -n "$include" ] || fatal "No source includes specified"
[ -n "$password" ] || fatal "The password option must be set."
### VServers
# If vservers are configured, check that the ones listed in $vsnames do exist.
local usevserver=no
if [ $vservers_are_available = yes ]; then
@ -54,125 +56,95 @@ else
[ -z "$vsinclude" ] || warning 'vservers support disabled in backupninja.conf, vsincludes configuration lines will be ignored'
fi
### see if we can login ###
### See if we can login on $desthost
if [ "$testconnect" == "yes" ]; then
debug "ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'"
if [ ! $test ]; then
result=`ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'`
if [ "$result" != "1" ]; then
fatal "Can't connect to $desthost as $destuser."
else
debug "Connected to $desthost as $destuser successfully"
fi
fi
debug "ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'"
if [ ! $test ]; then
result=`ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'`
if [ "$result" != "1" ]; then
fatal "Can't connect to $desthost as $destuser."
else
debug "Connected to $desthost as $destuser successfully"
fi
fi
fi
### COMMAND-LINE MANGLING ###
### COMMAND-LINE MANGLING ######################################################
### initialize $execstr*
execstr_command=
execstr_options="$options --no-print-statistics"
execstr_source=
execstr_serverpart="scp://$destuser@$desthost/$destdir"
### duplicity version
duplicity_version="`duplicity --version | @AWK@ '{print $2}'`"
duplicity_major="`echo $duplicity_version | @AWK@ -F '.' '{print $1}'`"
duplicity_minor="`echo $duplicity_version | @AWK@ -F '.' '{print $2}'`"
duplicity_sub="`echo $duplicity_version | @AWK@ -F '.' '{print $3}'`"
# 1. duplicity >= 0.4.2 needs --sftp-command (NB: sftp does not support the -l option)
# 2. duplicity >= 0.4.3 replaces --ssh-command with --ssh-options, which:
# - is passed to scp and sftp commands by duplicity
# - has a special syntax we can not directly feed the command line with
# (e.g. "IdentityFile=/root/.ssh/id_dsa_backupninja Port=2222", without the -o)
# so we don't use it: since this version does not use the ssh command anymore,
# we keep compatibility with our previous config files by passing $sshoptions to
# --scp-command and --sftp-command ourselves
### ssh/scp/sftp options
# 1. duplicity >= 0.4.2 needs --sftp-command
# (NB: sftp does not support the -l option)
# 2. duplicity 0.4.3 to 0.4.9 replace --ssh-command with --ssh-options, which is
# passed to scp and sftp commands by duplicity. We don't use it: since this
# version does not use the ssh command anymore, we keep compatibility with
# our previous config files by passing $sshoptions to --scp-command and
# --sftp-command ourselves
scpoptions="$sshoptions"
[ "$bandwidthlimit" == 0 ] || scpoptions="$scpoptions -l $bandwidthlimit"
execstr="$options --no-print-statistics "
# < 0.4.2 : only uses ssh and scp
if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 4 -a "$duplicity_sub" -lt 2 ]; then
execstr="$execstr --scp-command 'scp $scpoptions' --ssh-command 'ssh $sshoptions' "
execstr_options="${execstr_options} --scp-command 'scp $scpoptions' --ssh-command 'ssh $sshoptions'"
# >= 0.4.2 : also uses sftp, --sftp-command option is now supported
else
sftpoptions="$sshoptions"
# == 0.4.2 : uses ssh, scp and sftp
if [ "$duplicity_major" -eq 0 -a "$duplicity_minor" -eq 4 -a "$duplicity_sub" -eq 2 ]; then
execstr="$execstr --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions' --ssh-command 'ssh $sshoptions' "
execstr_options="${execstr_options} --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions' --ssh-command 'ssh $sshoptions'"
# >= 0.4.3 : uses only scp and sftp, --ssh-command option is not supported anymore
else
execstr="$execstr --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions' "
execstr_options="${execstr_options} --scp-command 'scp $scpoptions' --sftp-command 'sftp $sftpoptions'"
fi
fi
# deal with symmetric or asymmetric (public/private key pair) encryption
### Symmetric or asymmetric (public/private key pair) encryption
if [ -n "$encryptkey" ]; then
execstr="${execstr}--encrypt-key $encryptkey "
debug "Data will be encrypted with the GnuPG key $encryptkey."
execstr_options="${execstr_options} --encrypt-key $encryptkey"
debug "Data will be encrypted with the GnuPG key $encryptkey."
else
debug "Data will be encrypted using symmetric encryption."
debug "Data will be encrypted using symmetric encryption."
fi
# deal with data signing
### Data signing (or not)
if [ "$sign" == yes ]; then
# duplicity is not able to sign data when using symmetric encryption
[ -n "$encryptkey" ] || fatal "The encryptkey option must be set when signing."
# if needed, initialize signkey to a value that is not empty (checked above)
[ -n "$signkey" ] || signkey="$encryptkey"
execstr="${execstr}--sign-key $signkey "
debug "Data will be signed will the GnuPG key $signkey."
# duplicity is not able to sign data when using symmetric encryption
[ -n "$encryptkey" ] || fatal "The encryptkey option must be set when signing."
# if needed, initialize signkey to a value that is not empty (checked above)
[ -n "$signkey" ] || signkey="$encryptkey"
execstr_options="${execstr_options} --sign-key $signkey"
debug "Data will be signed will the GnuPG key $signkey."
else
debug "Data won't be signed."
fi
# deal with GnuPG passphrase
[ -n "$password" ] || fatal "The password option must be set."
if [ "$keep" != "yes" ]; then
if [ "`echo $keep | tr -d 0-9`" == "" ]; then
keep="${keep}D"
fi
execstr="${execstr}--remove-older-than $keep "
debug "Data won't be signed."
fi
### Incremental or full backup mode
# If incremental==yes, use the default duplicity behaviour: perform an
# incremental backup if old signatures can be found, else switch to
# full backup.
# If incremental==no, force a full backup anyway.
if [ "$incremental" == "no" ]; then
execstr="${execstr}--full "
# before 0.4.4, full was an option and not a command
if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 4 -a "$duplicity_sub" -lt 4 ]; then
execstr_options="${execstr_options} --full"
else
execstr_command="full"
fi
fi
execstr_serverpart="scp://$destuser@$desthost/$destdir"
execstr_clientpart="/"
### SOURCE ###
set -o noglob
# excludes
for i in $exclude; do
str="${i//__star__/*}"
execstr="${execstr}--exclude '$str' "
done
# includes
for i in $include; do
[ "$i" != "/" ] || fatal "Sorry, you cannot use 'include = /'"
str="${i//__star__/*}"
execstr="${execstr}--include '$str' "
done
# vsincludes
if [ $usevserver = yes ]; then
for vserver in $vsnames; do
for vi in $vsinclude; do
str="${vi//__star__/*}"
str="$VROOTDIR/$vserver$str"
execstr="${execstr}--include '$str' "
done
done
fi
set +o noglob
### deal with tmpdir ###
### Temporary directory
precmd=
if [ -n "$tmpdir" ]; then
if [ ! -d "$tmpdir" ]; then
@ -184,24 +156,108 @@ if [ -n "$tmpdir" ]; then
precmd="${precmd}TMPDIR=$tmpdir "
fi
### EXECUTE ###
### Cleanup old backup sets (or not)
if [ "$keep" != "yes" ]; then
if [ "`echo $keep | tr -d 0-9`" == "" ]; then
keep="${keep}D"
fi
# before 0.4.4, remove-older-than was an option and not a command
if [ "$duplicity_major" -le 0 -a "$duplicity_minor" -le 4 -a "$duplicity_sub" -lt 4 ]; then
execstr_options="${execstr_options} --remove-older-than $keep"
fi
fi
execstr=${execstr//\\*/\\\\\\*}
### Source
debug "$precmd duplicity $execstr --exclude '**' / $execstr_serverpart"
set -o noglob
# excludes
for i in $exclude; do
str="${i//__star__/*}"
execstr_source="${execstr_source} --exclude '$str'"
done
# includes
for i in $include; do
[ "$i" != "/" ] || fatal "Sorry, you cannot use 'include = /'"
str="${i//__star__/*}"
execstr_source="${execstr_source} --include '$str'"
done
# vsincludes
if [ $usevserver = yes ]; then
for vserver in $vsnames; do
for vi in $vsinclude; do
str="${vi//__star__/*}"
str="$VROOTDIR/$vserver$str"
execstr_source="${execstr_source} --include '$str'"
done
done
fi
set +o noglob
### EXECUTE ####################################################################
execstr_source=${execstr_source//\\*/\\\\\\*}
### Cleanup commands (duplicity >= 0.4.4)
# cleanup
if [ "$duplicity_major" -ge 0 -a "$duplicity_minor" -ge 4 -a "$duplicity_sub" -ge 4 ]; then
debug "$precmd duplicity cleanup $execstr_options $execstr_serverpart"
if [ ! $test ]; then
export PASSPHRASE=$password
output=`nice -n $nicelevel \
su -c \
"$precmd duplicity cleanup $execstr_options $execstr_serverpart 2>&1"`
exit_code=$?
if [ $exit_code -eq 0 ]; then
debug $output
info "Duplicity cleanup finished successfully."
else
debug $output
warning "Duplicity cleanup failed."
fi
fi
fi
# remove-older-than
if [ "$keep" != "yes" ]; then
if [ "$duplicity_major" -ge 0 -a "$duplicity_minor" -ge 4 -a "$duplicity_sub" -ge 4 ]; then
debug "$precmd duplicity remove-older-than $keep $execstr_options $execstr_serverpart"
if [ ! $test ]; then
export PASSPHRASE=$password
output=`nice -n $nicelevel \
su -c \
"$precmd duplicity remove-older-than $keep $execstr_options $execstr_serverpart 2>&1"`
exit_code=$?
if [ $exit_code -eq 0 ]; then
debug $output
info "Duplicity remove-older-than finished successfully."
else
debug $output
warning "Duplicity remove-older-than failed."
fi
fi
fi
fi
### Backup command
debug "$precmd duplicity $execstr_command $execstr_options $execstr_source --exclude '**' / $execstr_serverpart"
if [ ! $test ]; then
export PASSPHRASE=$password
output=`nice -n $nicelevel \
su -c \
"$precmd duplicity $execstr --exclude '**' / $execstr_serverpart 2>&1"`
code=$?
if [ $code -eq 0 ]; then
debug $output
info "Duplicity finished successfully."
else
debug $output
fatal "Duplicity failed."
fi
export PASSPHRASE=$password
output=`nice -n $nicelevel \
su -c \
"$precmd duplicity $execstr_command $execstr_options $execstr_source --exclude '**' / $execstr_serverpart 2>&1"`
exit_code=$?
if [ $exit_code -eq 0 ]; then
debug $output
info "Duplicity finished successfully."
else
debug $output
fatal "Duplicity failed."
fi
fi
return 0