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authorMicah Anderson <micah@riseup.net>2009-02-19 12:20:44 -0500
committerMicah Anderson <micah@riseup.net>2009-02-19 12:20:44 -0500
commit27a7859c42394a78c16b24f0d08ca28667bb1efa (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /handlers/wget
parent386c4275946520bc590428e730a9d515155436a0 (diff)
downloadbackupninja-27a7859c42394a78c16b24f0d08ca28667bb1efa.tar.gz
backupninja-27a7859c42394a78c16b24f0d08ca28667bb1efa.tar.bz2
creating a debian only branch out of what used to be a subversion repository
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diff --git a/handlers/wget b/handlers/wget
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-#
-# backupninja handler to do incremental backups using
-# wget and hardlinks, based on rsync handler
-#
-# feedback: rhatto at riseup.net | gpl
-#
-# Config file options
-# -------------------
-#
-# [general]
-# log = wget log file
-# partition = partition where the backup lives
-# fscheck = set to 1 if fsck should run on $partition after the backup is made
-# read_only = set to 1 if $partition is mounted read-only
-# mountpoint = backup partition mountpoint or backup main folder
-# backupdir = folder relative do $mountpoint where the backup should be stored
-# days = number of backup increments (min = 5)
-# lockfile = lockfile to be kept during backup execution
-# nicelevel = wget command nice level
-# enable_mv_timestamp_bug = set to "yes" if your system isnt handling timestamps correctly
-# tmp = temp folder
-#
-# [source]
-# wget = wget program
-# wget_options = wget command options
-# url = remote data url
-# bandwidthlimit = set a badnwidth limit in kbps (remote source only)
-#
-# [destination]
-# folder = local folder
-#
-# You can also specify some system comands if you don't want the default system values:
-#
-# [system]
-# rm = rm command
-# cp = cp command
-# touch = touch command
-# mv = mv command
-# fsck = fsck command
-#
-# TODO: Daily, weekly and monthly snapshot rotation (like the one present on maildir handler).
-#
-
-# config file evaluation
-
-setsection system
-getconf rm rm
-getconf cp cp
-getconf touch touch
-getconf mv mv
-getconf fsck fsck
-
-setsection general
-getconf log /var/log/backup/wget.log
-getconf partition
-getconf fscheck
-getconf read_only
-getconf mountpoint
-getconf backupdir
-getconf rotate
-getconf days
-getconf lockfile
-getconf nicelevel 0
-getconf enable_mv_timestamp_bug no
-getconf tmp /tmp
-
-setsection source
-getconf wget wget
-getconf wget_options
-getconf url
-getconf bandwidthlimit
-
-setsection destination
-getconf folder
-
-# function definitions
-
-function rotate {
-
- if [[ "$2" < 4 ]]; then
- error "Rotate: minimum of 4 rotations"
- exit 1
- fi
-
- if [ -d $1.$2 ]; then
- $nice $mv /$1.$2 /$1.tmp
- fi
-
- for ((n=`echo "$2 - 1" | bc`; n >= 0; n--)); do
- if [ -d $1.$n ]; then
- dest=`echo "$n + 1" | bc`
- $nice $mv /$1.$n /$1.$dest
- $touch /$1.$dest
- fi
- done
-
- if [ -d $1.tmp ]; then
- $nice $mv /$1.tmp /$1.0
- fi
-
- if [ -d $1.1 ]; then
- $nice $cp -alf /$1.1/. /$1.0
- fi
-
-}
-
-function move_files {
-
- ref=$tmp/makesnapshot-mymv-$$;
- $touch -r $1 $ref;
- $mv $1 $2;
- $touch -r $ref $2;
- $rm $ref;
-
-}
-
-backupdir="$mountpoint/$backupdir"
-
-# does $backupdir exists?
-
-if [ ! -d "$backupdir" ]; then
- error "Backupdir $backupdir does not exist"
- exit 1
-fi
-
-# setup number of increments
-
-if [ -z "$days" ]; then
- keep="4"
-else
- keep="`echo $days - 1 | bc -l`"
-fi
-
-# lockfile setup
-
-if [ ! -z "$lockfile" ]; then
- $touch $lockfile || warning "Could not create lockfile $lockfile"
-fi
-
-# nicelevel setup
-
-if [ ! -z "$nicelevel" ]; then
- nice="nice -n $nicelevel"
-else
- nice=""
-fi
-
-# set mv procedure
-
-if [ $enable_mv_timestamp_bug == "yes" ]; then
- mv=move_files
-fi
-
-# set excludes
-
-for path in $exclude; do
- EXCLUDES="$EXCLUDES --exclude=$path"
-done
-
-echo "Starting backup at `date`" >> $log
-
-# mount backup destination folder as read-write
-
-if [ "$read_only" == "1" ] || [ "$read_only" == "yes" ]; then
- if [ -d "$mountpoint" ]; then
- mount -o remount,rw $mountpoint
- if (($?)); then
- error "Could not mount $mountpoint"
- exit 1
- fi
- fi
-fi
-
-# the backup procedure
-
-if [ ! -d "$backupdir/$folder/$folder.0" ]; then
- mkdir -p $backupdir/$folder/$folder.0
-fi
-
-info "Rotating $backupdir/$folder/$folder..."
-echo "Rotating $backupdir/$folder/$folder..." >> $log
-rotate $backupdir/$folder/$folder $keep
-info "Wget'ing $SECTION on $backupdir/$folder/$folder.0..."
-
-if [ ! -z "$badnwidth" ]; then
- limit_rate="--limit-rate=$badnwidth""k"
-fi
-
-cd $backupdir/$folder/$folder.0
-wget $wget_options $limit-rate -r -c -N -e robots=off $url
-cd -
-
-$touch $backupdir/$folder/$folder.0
-
-# remount backup destination as read-only
-
-if [ "$read_only" == "1" ] || [ "$read_only" == "yes" ]; then
- mount -o remount,ro $mountpoint
-fi
-
-# check partition for errors
-
-if [ "$fscheck" == "1" ] || [ "$fscheck" == "yes" ]; then
- umount $mountpoint
- if (($?)); then
- warning "Could not umount $mountpoint to run fsck"
- else
- $nice $fsck -v -y $partition >> $log
- mount $mountpoint
- fi
-fi
-
-# removes the lockfile
-
-if [ ! -z "$lockfile" ]; then
- $rm $lockfile || warning "Could not remove lockfile $lockfile"
-fi
-
-echo "Finnishing backup at `date`" >> $log
-