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-rw-r--r--handlers/maildir48
1 files changed, 27 insertions, 21 deletions
diff --git a/handlers/maildir b/handlers/maildir
index 2ea94ff..522bf31 100644
--- a/handlers/maildir
+++ b/handlers/maildir
@@ -122,30 +122,32 @@ function do_remove() {
function do_rotate() {
backuproot=$destdir
- now=`date %s`
+
+ ssh -T -o PasswordAuthentication=no $desthost -l $destuser <<EOF
+##### BEGIN REMOTE SCRIPT #####
seconds_daily=86400
seconds_weekly=604800
seconds_monthly=2628000
-
- ssh -o PasswordAuthentication=no $desthost -l $destuser <<EOF
keepdaily=$keepdaily
keepweekly=$keepweekly
keepmonthly=$keepmonthly
+ now=\`date +%s\`
for rottype in daily weekly monthly; do
- seconds=\`echo seconds_\${rottype}\`
+ seconds=\$((seconds_\${rottype}))
dir="$backuproot/\$rottype"
if [ ! -d \$dir.1 ]; then
- echo "Warning: \$dir.1 does not exist. This backup is missing, so we are skipping the rotation."
- continue
+ echo "Info: \$dir.1 does not exist. This backup is missing, so we are skipping the rotation."
+ continue 1
elif [ ! -f \$dir.1/created ]; then
- echo "Warning: \$dir.1/created does not exist. This backup may be only partially completed, so we are skipping the rotation."
- continue
+ echo "Warning: \$dir.1/created does not exist. This backup may be only partially completed. Skipping rotation."
+ continue 1
fi
# Rotate the current list of backups, if we can.
- oldest=\`ls -d $\dir.* | sed 's/^.*\.//' | sort -n | tail -1\`
+ oldest=\`ls -d \$dir.* | sed 's/^.*\.//' | sort -n | tail -1\`
+ [ "\$oldest" == "" ] && oldest=0
for (( i=\$oldest; i > 0; i-- )); do
if [ -d \$dir.\$i ]; then
if [ -f \$dir.\$i/rotated ]; then
@@ -154,38 +156,41 @@ function do_rotate() {
rotated=0
fi
cutoff_time=\$(( now - (seconds*i) ))
- if [ \$rotated -gt \$cutoff_time ]; then
+ if [ \$rotated -lt \$cutoff_time ]; then
next=\$(( i + 1 ))
- echo "mv \$dir.\$i \$dir.\$next"
- mv \$dir.\$i \$dir.\$next
- date +%c%n%s > \$dir.\$next/rotated
+ if [ ! -d \$dir.\$next ]; then
+ echo "mv \$dir.\$i \$dir.\$next"
+ mv \$dir.\$i \$dir.\$next
+ date +%c%n%s > \$dir.\$next/rotated
+ else
+ echo "Info: skipping rotation of \$dir.\$i because \$dir.\$next already exists."
+ fi
else
- echo "Info: skipping rotation of \$dir.\$i because it was already rotated within the last " \$((cutoff_time/86400)) " days."
- fi
+ echo "Info: skipping rotation of \$dir.\$i because it was rotated" \$(( (now-rotated)/86400)) "days ago ("\$(( (now-cutoff_time)/86400))" needed)."
+ fi
fi
done
done
max=\$((keepdaily+1))
- if [ ( \$keepweekly -a -d $backuproot/daily.\$max ) -a ! -d $backuproot/weekly.1 ]; then
+ if [ \( \$keepweekly -gt 0 -a -d $backuproot/daily.\$max \) -a ! -d $backuproot/weekly.1 ]; then
echo mv $backuproot/daily.\$max $backuproot/weekly.1
mv $backuproot/daily.\$max $backuproot/weekly.1
date +%c%n%s > $backuproot/weekly.1/rotated
fi
max=\$((keepweekly+1))
- if [ ( \$keepmonthly -a -d $backuproot/weekly.\$max ) -a ! -d $backuproot/monthly.1 ]; then
+ if [ \( \$keepmonthly -gt 0 -a -d $backuproot/weekly.\$max \) -a ! -d $backuproot/monthly.1 ]; then
echo mv $backuproot/weekly.\$max $backuproot/monthly.1
mv $backuproot/weekly.\$max $backuproot/monthly.1
date +%c%n%s > $backuproot/monthly.1/rotated
fi
for rottype in daily weekly monthly; do
- max=\`echo keep\${rottype}\`
- max=\$((max+1))
+ max=\$((keep\${rottype}+1))
dir="$backuproot/\$rottype"
- oldest=\`ls -d $\dir.* | sed 's/^.*\.//' | sort -n | tail -1\`
-
+ oldest=\`ls -d \$dir.* | sed 's/^.*\.//' | sort -n | tail -1\`
+ [ "\$oldest" == "" ] && oldest=0
# if we've rotated the last backup off the stack, remove it.
for (( i=\$oldest; i >= \$max; i-- )); do
if [ -d \$dir.\$i ]; then
@@ -194,6 +199,7 @@ function do_rotate() {
fi
done
done
+####### END REMOTE SCRIPT #######
EOF
}