Re: [PATCH] git-svn: cache max revision in rev_db databases

> Cache the maximum revision for each rev_db URL rather than looking it
> up each time.  This saves a lot of time when rebuilding indexes on a
> freshly cloned repository.
>
> Signed-off-by: Sam Vilain <sam.vilain@catalyst.net.nz>

> ---
>  git-svn.perl |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/git-svn.perl b/git-svn.perl
> index 556cd7d..a8b6669 100755
> --- a/git-svn.perl
> +++ b/git-svn.perl
> @@ -801,6 +801,7 @@ sub working_head_info {
>  	my ($head, $refs) = @_;
>  	my ($fh, $ctx) = command_output_pipe('log', $head);
>  	my $hash;
> +	my %max;
>  	while (<$fh>) {
>  		if ( m{^commit ($::sha1)$} ) {
>  			unshift @$refs, $hash if $hash and $refs;
> @@ -810,11 +811,14 @@ sub working_head_info {
>  		next unless s{^\s*(git-svn-id:)}{$1};
>  		my ($url, $rev, $uuid) = extract_metadata($_);
>  		if (defined $url && defined $rev) {
> +			next if $max{$url} and $max{$url} < $rev;
>  			if (my $gs = Git::SVN->find_by_url($url)) {
>  				my $c = $gs->rev_db_get($rev);
>  				if ($c && $c eq $hash) {
>  					close $fh; # break the pipe
>  					return ($url, $rev, $uuid, $gs);
> +				} else {
> +					$max{$url} ||= $gs->rev_db_max;
>  				}
>  			}
>  		}
> -- 
> 1.5.2.1.1131.g3b90