Re: Enumerating all objects in the Git object store

From: Jakub Narebski <jnareb@gmail.com>
Date: Mar 26, 2010, 16:13 UTC
Message-ID: <m3zl1vhxjg.fsf@localhost.localdomain>
In-Reply-To: <4BACD86E.4020803@viscovery.net>

Johannes Sixt <j.sixt@viscovery.net> writes:

Show 13 quoted lines

> Am 3/26/2010 16:31, schrieb Paul Richards:
> > Is there a way to enumerate all the objects in the Git
> > object store, and for each one figure out its type (commit, tree, or
> > blob) and obtain a list of the objects it references?  If not, is
> > there a way to do this for a single object at a time?  (I can then
> > simply recurse through the whole structure.)
> 
> Use 'git rev-list --objects --all' to find all objects connected to all
> refs (use something else than --all if you want to). Do *not* look at the
> path that the tree and blob objects have attached - it is not authorative
> information.
> 
> Use 'git cat-file -t' to find the type.

For performance it would be better to feed `git rev-list --objects --all`
output to `git cat-file --batch-check` instead.

> Use 'git cat-file -p' to pretty-print the content of an object. Parse it
> depending on the type that you find.

For performance it would be better to use `git cat-file --batch`... but on the other hand side you would have to parse "binary" tree objects representation.

-- 
Jakub Narebski
Poland
ShadeHawk on #git