Re: [PATCH 2/2] Teach "delta" attribute to pack-objects.

From: Nicolas Pitre <nico@cam.org>
Date: May 22, 2007, 16:04 UTC
Message-ID: <alpine.LFD.0.99.0705221200010.3366@xanadu.home>
In-Reply-To: <11795608922961-git-send-email-junkio@cox.net>

On Sat, 19 May 2007, Junio C Hamano wrote:

> This teaches pack-objects to use .gitattributes mechanism so
> that the user can specify certain blobs are not worth spending
> CPU cycles to attempt deltification.

[...]

Show 20 quoted lines

> @@ -1349,6 +1376,10 @@ static void find_deltas(struct object_entry **list, int window, int depth)
>  
>  		if (entry->size < 50)
>  			continue;
> +
> +		if (entry->no_try_delta)
> +			continue;
> +
>  		free_delta_index(n->index);
>  		n->index = NULL;
>  		free(n->data);
> @@ -1376,6 +1407,8 @@ static void find_deltas(struct object_entry **list, int window, int depth)
>  			m = array + other_idx;
>  			if (!m->entry)
>  				break;
> +			if (m->entry->no_try_delta)
> +				continue;
>  			if (try_delta(n, m, max_depth) < 0)
>  				break;
>  		}

This last hunk is unnecessary. Because of the other hunk above, the no_try_delta objects will never get into the m array.

Well done otherwise.  This attribute thing is really nice.

Nicolas