Stephen Boyd <bebarino@gmail.com> writes:

quoted text
> Junio C Hamano wrote:
> ...
>> IOW, you can introduce a new format specifier (say, "%f") to
>> format_commit_message() and the implemention of get_patch_filename() would
>> just prepare a strbuf and call format_commit_message() on it, no?
>
> This sounds great! I'm new so I don't know where to look for something
> like this.

I suspect you may not even have to pass the generated string around if you
did so.  Instead, you could pass the commit to log_write_email_headers()
instead of sha1_to_hex(commit->object.sha1) from show_log(), and use the
sha-1on the unix "From " line, and inside "if (opt->mime_boundar)", you
can ask format_commit_message("%f") to come up with a filename.
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