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https://0xacab.org/liberate/backupninja.git
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created
This commit is contained in:
Elijah Saxon
parent
19b4b83fbc
commit
0e6fd3befa
164
handlers/maildir
164
handlers/maildir
@ -30,21 +30,24 @@ getconf desthost
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getconf destport 22
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getconf destuser
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failedcount=0
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# strip trailing /
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destdir=${destdir%/}
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srcdir=${srcdir%/}
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# used for testing
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getconf letter
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getconf user
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#getconf letter
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#getconf testuser elijah
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getconf backup yes
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#letters=e
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letters="a b c d e f g h i j k l m n o p q r s t u v w x y z"
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[ -d $srcdir ] || fatal "source directory $srcdir doesn't exist"
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[ ! $test ] || testflags="--dry-run -v"
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rsyncflags="$testflags -e 'ssh -p $destport'"
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flags_mail="$rsyncflags --archive --ignore-existing --delete --numeric-ids --size-only --bwlimit=$speedlimit"
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flags_folders="$rsyncflags --archive --delete --numeric-ids"
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excludes='--exclude ".Trash/*" --exclude ".Mistakes/*" --exclude ".Spam/*"'
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rsyncflags="$testflags -e 'ssh -p $destport' -r -v --ignore-existing --delete --size-only --bwlimit=$speedlimit"
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excludes="--exclude '.Trash/\*' --exclude '.Mistakes/\*' --exclude '.Spam/\*'"
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# see if we can login
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debug "ssh -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'"
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@ -58,47 +61,38 @@ fi
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##################################################################
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### FUNCTIONS
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# remote run the args remotely
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function rrun() {
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debug ssh -o PasswordAuthentication=no $desthost -l $destuser $@
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if [ ! $test ]; then
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debug ssh -o PasswordAuthentication=no $desthost -l $destuser $@
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fi
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}
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function do_letters() {
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for i in a b c d e f g h i j k l m n o p q r s t u v w x y z; do
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do_maildirs "$srcdir/$i"
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done
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}
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function do_maildirs() {
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local dir=$1
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[ -d $dir ] || fatal "directory $dir not found."
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for userdir in `ls -1 $dir`; do
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do_userdir $userdir
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done
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}
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function do_user() {
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local user=$1
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local destdir=$2
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local letter=${user:0:1}
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local dir="$srcdir/$letter/$user"
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[ -d $dir ] || fatal "maildir $dir not found".
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while 1; do
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load=`uptime | sed 's/^.*load average: \\([^,]*\\).*$/\\1/'`
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if [ $load -lt $loadlimit ]; then
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info "load $load, sleeping..."
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sleep 600
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else
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break
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fi
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done
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# while true; do
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# load=`uptime | sed 's/^.*load average: \\([^,]*\\).*$/\\1/'`
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# over=`expr $load \> $loadlimit`
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# if [ $over == 1 ]; then
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# info "load $load, sleeping..."
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# sleep 600
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# else
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# break
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# fi
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# done
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cmd="rsync $maildirrsyncflags $excludes '$dir' '$destuser@$desthost:$destdir/maildir/$letter'"
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debug $cmd
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# ret=`rsync $maildirrsyncflags $excludes '$dir' '$destuser@$desthost:$destdir/maildir/$letter' 2>&1`
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cmd="$RSYNC $rsyncflags $excludes $dir $destuser@$desthost:$destdir/$letter"
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ret=`rsync -e "ssh -p $destport" -r \
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--links --ignore-existing --delete --size-only --bwlimit=$speedlimit \
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--exclude '.Trash/*' --exclude '.Mistakes/*' --exclude '.Spam/*' \
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$dir $destuser@$desthost:$destdir/$letter \
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2>&1`
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if [ $? != 0 ]; then
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warning "rsync $user failed"
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warning " returned: $ret"
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let "failedcount = failedcount + 1"
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if [ $failedcount -gt 100 ]; then
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fatal "100 rsync errors -- something is not working right. bailing out."
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fi
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fi
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}
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# remove any maildirs from backup which might have been deleted
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@ -123,6 +117,8 @@ function do_remove() {
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function do_rotate() {
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backuproot=$destdir
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(
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debug Connecting to $desthost
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ssh -T -o PasswordAuthentication=no $desthost -l $destuser <<EOF
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##### BEGIN REMOTE SCRIPT #####
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seconds_daily=86400
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@ -146,7 +142,8 @@ function do_rotate() {
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fi
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# Rotate the current list of backups, if we can.
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oldest=\`ls -d \$dir.* | sed 's/^.*\.//' | sort -n | tail -1\`
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oldest=\`find $backuproot -type d -maxdepth 1 -name \$rottype'.*' | sed 's/^.*\.//' | sort -n | tail -1\`
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echo "Debug: oldest \$oldest"
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[ "\$oldest" == "" ] && oldest=0
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for (( i=\$oldest; i > 0; i-- )); do
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if [ -d \$dir.\$i ]; then
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@ -189,21 +186,75 @@ function do_rotate() {
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for rottype in daily weekly monthly; do
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max=\$((keep\${rottype}+1))
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dir="$backuproot/\$rottype"
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oldest=\`ls -d \$dir.* | sed 's/^.*\.//' | sort -n | tail -1\`
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oldest=\`find $backuproot -type d -maxdepth 1 -name \$rottype'.*' | sed 's/^.*\.//' | sort -n | tail -1\`
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[ "\$oldest" == "" ] && oldest=0
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# if we've rotated the last backup off the stack, remove it.
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for (( i=\$oldest; i >= \$max; i-- )); do
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if [ -d \$dir.\$i ]; then
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echo "Info: removing \$dir.\$i"
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rm -rf \$dir.\$i
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if [ -d $backuproot/rotate.tmp ]; then
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echo "Info: removing $backuproot/rotate.tmp"
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rm -rf $backuproot/rotate.tmp
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else
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echo "Info: moving \$dir.\$i to $backuproot/rotate.tmp"
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mv \$dir.\$i $backuproot/rotate.tmp
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fi
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fi
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done
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done
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####### END REMOTE SCRIPT #######
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EOF
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) | (while read a; do passthru $a; done)
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}
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function setup_remote_dirs() {
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local backuptype=$1
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local dir="$destdir/$backuptype"
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(
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ssh -T -o PasswordAuthentication=no $desthost -l $destuser <<EOF
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if [ ! -d $destdir ]; then
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echo "Fatal: Destination directory $destdir does not exist on host $desthost."
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exit 1
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elif [ -d $dir.1 ]; then
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if [ -f $dir.1/created ]; then
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echo "Warning: $dir.1 already exists. Overwriting contents."
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else
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echo "Warning: we seem to be resuming a partially written $dir.1"
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fi
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else
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if [ -d $destdir/rotate.tmp ]; then
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mv $destdir/rotate.tmp $dir.1
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if [ \$? == 1 ]; then
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echo "Fatal: could mv $destdir/rotate.tmp $dir.1 on host $desthost"
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exit 1
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fi
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else
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mkdir $dir.1
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if [ \$? == 1 ]; then
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echo "Fatal: could not create directory $dir.1 on host $desthost"
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exit 1
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fi
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fi
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if [ -d $destdir/$backuptype.2 ]; then
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echo "Info: updating hard links to $dir.1. This may take a while."
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cp -al $destdir/$backuptype.2/. $dir.1
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if [ \$? == 1 ]; then
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echo "Fatal: could not create hard links to $dir.1 on host $desthost"
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exit 1
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fi
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fi
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fi
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[ -f $dir.1/created ] && rm $dir.1/created
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[ -f $dir.1/rotated ] && rm $dir.1/rotated
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exit 0
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EOF
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) | (while read a; do passthru $a; done)
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if [ $? == 1 ]; then exit; fi
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}
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###
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##################################################################
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@ -219,12 +270,25 @@ if [ "$remove" == "yes" ]; then
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debug remove
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fi
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### ROTATE BACKUPS ###
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### MAKE BACKUPS ###
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if [ "$letter" != "" ]; then
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debug letter
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fi
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if [ "$backup" == "yes" ]; then
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if [ $keepdaily -gt 0 ]; then btype=daily
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elif [ $keepweekly -gt 0 ]; then btype=weekly
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elif [ $keepmonthly -gt 0 ]; then btype=monthly
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else fatal "keeping no backups"; fi
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if [ "$user" != "" ]; then
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debug user
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setup_remote_dirs $btype
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for i in $letters; do
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[ -d "$srcdir/$i" ] || fatal "directory $srcdir/$i not found."
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cd "$srcdir/$i"
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debug $i
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for user in `ls -1`; do
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if [ "$testuser" != "" -a "$testuser" != "$user" ]; then continue; fi
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do_user $user $destdir/$btype.1
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done
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done
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ssh -o PasswordAuthentication=no $desthost -l $destuser "date +%c%n%s > $destdir/$btype.1/created"
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fi
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