Re: [PATCH] git: add optional support for full pattern in fetch refspecs

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On Tue, Jul 7, 2015 at 9:24 PM, Junio C Hamano <gitster@xxxxxxxxx> wrote:
> Jacob Keller <jacob.e.keller@xxxxxxxxx> writes:
>
>> +remote.<name>.arbitrarypattern::
>> +     When set to true, fetching from this remote will allow arbitrary complex
>> +     patterns for the fetch refspecs. For example,
>> +     refs/tags/prefix-*:refs/tags/prefix-* will work as expected. Care should be
>> +     taken as you could fetch refs into names that don't exist on the remote and
>> +     may end up pushing them again later by accident.
>
> Bad name and explanation, unless you truly mean "arbitrary", like
> taking something like "refs/ta*/prefix-*-*-foo:refs/*".
>

I couldn't figure out what to use, and the original intent was to add
an option.. but see below,

> More importantly, this is not "pattern"; you are talking about
> refspec, I think.
>

In this case the option was an additional modifier to the
refspec_patterns, and I was talking about how the pattern could be
slightly more arbitrary. I do agree it is a bad name, but i couldn't
actually come up with anything better.

> But that probably does not matter.  I do not think this even needs
> to exist as an option.
>

Yes, I agree especially as I look at it more. I'll work up a patch
version which does this without the option.

> People's existing settings would not have anything other than an
> asterisk as a whole path component on each side (or no asterisk
> anywhere), and if they had an asterisk anywhere else they would have
> gotten an error and wouldn't have made any progress until they fixed
> it.  So if you loosen the current rule sligntly and tell them "If
> your refspec has an asterisk in it, then you must have one asterisk
> on each side of it. That rule hasn't changed. But your asterisks no
> longer have to be a whole path component", such a change would not
> hurt them.  Their existing setting that work would not notice, and
> existing users would not be relying on a refspec with an asterisk as
> part of a path component to error out.
>

Right. We aren't breaking anyones current functionality, just adding
new functionality. We already check for a * in both sides, and my code
will ensure only 1 star total. It will then work for the new somewhat
more expanded patterns and we don't need an option.

I'll work up a v2.

Regards,
Jake
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