Re: [PATCH 11/16] rev-list: add bitmap mode to speed up lists

On Tue, Jun 25, 2013 at 09:22:28AM -0700, Thomas Rast wrote:

Vicent Marti [off-list ref] writes:

quoted

Calling `git rev-list --use-bitmaps [committish]` is the equivalent
of `git rev-list --objects`, but the rev list is performed based on
a bitmap result instead of using a manual counting objects phase.

Why would we ever want to not --use-bitmaps, once it actually works?
I.e., shouldn't this be the default if pack.usebitmaps is set (or
possibly even core.usebitmaps for these things)?

If you are using bitmaps, you cannot produce the same output as
"--objects"; the latter prints the path at which each object is found.
In the JGit bitmap format, we have no information at all; in Vicent's
"v2", we have only a hash of that pathname.

-Peff