Dan Pritts writes:
> > 1. Is it possible to use regexps for the $Conf{BackupFilesExclude}
> > variable?
>
> I'm pretty sure that backuppc just hands your configuration entries
> to the program doing the transfer (rsync, tar, smbclient, whatever).
That's right.
> I don't know about tar or smbclient. In the case of rsync, you cannot
> use a simple regular expression. It has a fairly powerful grammar but
> it is also somewhat obtuse (for instance, trailing slashes on directory
> names matter). I'd suggest reading (carefully) the rsync man page,
> experimenting, and then following up on the rsync mailing list with
> questions. Look in the man page under EXCLUDE PATTERNS.
>
> > The goal is to be able to exclude ay users
> > TemporaryInternetFiles and mozilla-cache and any other cache that I
> > can identify. Also, does anybody have ready-to-use-rules for this?
>
> I have a followup question - is there a simple way to have a per-host
> config.pl add entries to $Conf{BackupFilesExclude} rather than replace it?
> I tried this:
>
> push (@{$Conf{BackupFilesExclude}}, '/netflow','/var/log/lastlog');
>
> But it doesn't work, it still gets overridden.
>
> Here i think is the relevant code snippet from BackupPC/Lib.pm:
>
> foreach $config ( @configs ) {
> %Conf = ();
> if ( !defined($ret = do $config) && ($! || $@) ) {
> $mesg = "Couldn't open $config: $!" if ( $! );
> $mesg = "Couldn't execute $config: $@" if ( $@ );
> $mesg =~ s/[\n\r]+//;
> return $mesg;
> }
> %{$bpc->{Conf}} = ( %{$bpc->{Conf} || {}}, %Conf );
> }
>
>
> It's this last line of code that confuses me. I'm wondering why
> this is done:
>
> %{$bpc->{Conf} || {}}
Unfortunately the code provides an empty $Conf each time is
parses the config file. This line merges the new config
with the previous one:
%{$bpc->{Conf}} = ( %{$bpc->{Conf} || {}}, %Conf );
This expression:
%{$bpc->{Conf} || {}}
uses the current $bpc->{Conf} or an empty hash if $bpc->{Conf}
is not defined or empty.
Craig
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