ldap, mysql, pgsql: use gzip's --rsyncable option

ChangeLog

@@ -6,6 +6,8 @@ version 0.9.7 -- UNRELEASED
 	   file or in a given backup action file. Thanks Tuomas Jormola for the
 	   preliminary patch (Closes: #511299)
     handler changes
+	ldap:
+	 . Use gzip's --rsyncable option.
 	maildir:
 	 . fix location of deleted_on file
 	 . add missing destid_file options to ssh connections
@@ -20,6 +22,9 @@ version 0.9.7 -- UNRELEASED
 	   does not prevent mysqldump to work.
 	 . Fix the error message displayed when mysqld is not running:
 	   mysqladmin ping indeed returns 0 when authentication fails.
+	 . Use gzip's --rsyncable option.
+	pgsql:
+	 . Use gzip's --rsyncable option.
 	sys:
 	 . New luksheaders option (default=disabled) to backup the Luks header
 	   of every Luks device.

handlers/ldap.in

@@ -86,7 +86,7 @@ if [ "$ldif" == "yes" ]; then
          fi
 
          if [ "$compress" == "yes" ]; then
-            execstr="$execstr | $GZIP > $dumpdir/$dbsuffix.ldif.gz"
+            execstr="$execstr | $GZIP --rsyncable > $dumpdir/$dbsuffix.ldif.gz"
          else
             execstr="$execstr > $dumpdir/$dbsuffix.ldif"
          fi

handlers/mysql.in

@@ -272,7 +272,7 @@ then
             fatal "mysqld doesn't appear to be running!"
          fi
          if [ "$compress" == "yes" ]; then
-            execstr="$VSERVER $vsname exec $DUMP | $GZIP > $vroot$dumpdir/${db}.sql.gz"
+            execstr="$VSERVER $vsname exec $DUMP | $GZIP --rsyncable > $vroot$dumpdir/${db}.sql.gz"
          else
             execstr="$VSERVER $vsname exec $DUMP -r $vroot$dumpdir/${db}.sql"
          fi
@@ -283,7 +283,7 @@ then
             fatal "mysqld doesn't appear to be running!"
          fi
          if [ "$compress" == "yes" ]; then
-            execstr="$DUMP | $GZIP > $dumpdir/${db}.sql.gz"
+            execstr="$DUMP | $GZIP --rsyncable > $dumpdir/${db}.sql.gz"
          else
             execstr="$DUMP -r $dumpdir/${db}.sql"
          fi

handlers/pgsql.in

@@ -75,13 +75,13 @@ chmod 700 $vroot$backupdir
 if [ "$databases" == "all" ]; then
    if [ $usevserver = yes ]; then
       if [ "$compress" == "yes" ]; then
-         execstr="$VSERVER $vsname exec su - $PGSQLUSER -c \"$PGSQLDUMPALL | $GZIP > $backupdir/${vsname}.sql.gz\""
+         execstr="$VSERVER $vsname exec su - $PGSQLUSER -c \"$PGSQLDUMPALL | $GZIP --rsyncable > $backupdir/${vsname}.sql.gz\""
       else
          execstr="$VSERVER $vsname exec su - $PGSQLUSER -c \"$PGSQLDUMPALL > $backupdir/${vsname}.sql\""
       fi
    else
       if [ "$compress" == "yes" ]; then
-         execstr="su - $PGSQLUSER -c \"$PGSQLDUMPALL | $GZIP > $backupdir/${localhost}-all.sql.gz\""
+         execstr="su - $PGSQLUSER -c \"$PGSQLDUMPALL | $GZIP --rsyncable > $backupdir/${localhost}-all.sql.gz\""
       else
          execstr="su - $PGSQLUSER -c \"$PGSQLDUMPALL > $backupdir/${localhost}-all.sql\""
       fi
@@ -104,13 +104,13 @@ else
    for db in $databases; do
       if [ $usevserver = yes ]; then
          if [ "$compress" == "yes" ]; then
-            execstr="$VSERVER $vsname exec su - $PGSQLUSER -c \"$PGSQLDUMP $db | $GZIP > $backupdir/${db}.sql.gz\""
+            execstr="$VSERVER $vsname exec su - $PGSQLUSER -c \"$PGSQLDUMP $db | $GZIP --rsyncable > $backupdir/${db}.sql.gz\""
          else
             execstr="$VSERVER $vsname exec su - $PGSQLUSER -c \"$PGSQLDUMP $db | > $backupdir/${db}.sql\""
          fi
       else
          if [ "$compress" == "yes" ]; then
-            execstr="su - $PGSQLUSER -c \"$PGSQLDUMP $db | $GZIP > $backupdir/${db}.sql.gz\""
+            execstr="su - $PGSQLUSER -c \"$PGSQLDUMP $db | $GZIP --rsyncable > $backupdir/${db}.sql.gz\""
          else
             execstr="su - $PGSQLUSER -c \"$PGSQLDUMP $db > $backupdir/${db}.sql\""
          fi