From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <gitster@pobox.com>
Subject: Re: 'git show' with multiple revisions
Date: Wed, 29 Apr 2015 09:08:14 -0700
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To: Ed Avis <eda@waniasset.com>
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Ed Avis <eda@waniasset.com> writes:

> Junio C Hamano <gitster <at> pobox.com> writes:
>
>>"cat-file --batch" will give you the objects in the order you ask.
>
> Thanks, that makes it easy to deal with.  In fact, I might prefer to use
> git cat-file --batch-check and then use some other library to fetch the blob
> contents.

If all you need is a translation from extended SHA-1 object name
like HEAD~243:Documentation/README to the raw 40-hex object name,
"rev-parse" may turn out to be more suitable tool than that.

It of course depends on your use case.