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From: Simon Oosthoek <s.oosthoek@xs4all.nl>
Subject: Re: generating format-patch options from an e-mail
Date: Wed, 26 Dec 2012 22:07:37 +0100
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To: Junio C Hamano <gitster@pobox.com>
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* Junio C Hamano <gitster@pobox.com> [2012-12-26 12:35:28 -0800]:
> >
> > Anyway, I could imagine this as optional flag of git format-patch, so you could say:
> > $ git format-patch -s --in-reply-to-email <mboxfile> a7fe7de8
> >
> > But I'll save that as an exercise for the reader (or the future)
> 
> I think a much more general approach would be to turn your script
> into "get-msg-id" script and use it like so:
> 
>   $ git format-patch --in-reply-to $(get-msg-id <mboxfile>) a7fe7de8
> 
> Then you can reuse that script in a context outside format-patch,
> whereever you need the message-id in a single message in the
> mailbox.
> 

That would work for the message-ID, but not for the various To: and Cc: addresses.

The hacky script that I sent afterwards produces a string with the various options to git format-patch (--to --cc --in-reply-to) based on the headers To:/Cc:/From:/Message-ID:

Cheers

Simon