Re: [PATCH v7 0/7] convert: add support for different encodings

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> On 27 Feb 2018, at 22:25, Jeff King <peff@xxxxxxxx> wrote:
> 
> On Tue, Feb 27, 2018 at 10:05:17PM +0100, Torsten Bögershausen wrote:
> 
> Of the three solutions, I think the relative merits are something like
> this:
> 
>  1. baked-in textconv (my patch)
> 
>     - reuses an existing diff feature, so minimal code and not likely to
>       break things
> 
>     - requires people to add a .gitattributes entry
> 
>     - needs work to make bare-repo .gitattributes work (though I think
>       this would be useful for other features, too)
> 
>     - has a run-time cost at each diff to do the conversion
> 
>     - may sometimes annoy people when it doesn't kick in (e.g.,
>       emailed patches from format-patch won't have a readable diff)
> 
>     - doesn't combine with other custom-diff config (e.g., utf-16
>       storing C code should still use diff=c funcname rules, but
>       wouldn't with my patch)
> 
>  2. auto-detect utf-16 (your patch)
>     - Just Works for existing repositories storing utf-16
> 
>     - carries some risk of kicking in when people would like it not to
>       (e.g., when they really do want a binary patch that can be
>       applied).
> 
>       I think it would probably be OK if this kicked in only when
>       ALLOW_TEXTCONV is set (the default for porcelain), and --binary
>       is not (i.e., when we would otherwise just say "binary
>       files differ").
> 
>     - similar to (1), carries a run-time cost for each diff, and users
>       may sometimes still see binary diffs
> 
>  3. w-t-e (Lars's patch)
> 
>     - requires no server-side modifications; the diff is plain vanilla
> 
>     - works everywhere you diff, plumbing and porcelain
> 
>     - does require people to add a .gitattributes entry
> 
>     - run-time cost is per-checkout, not per-diff
> 
> So I can see room for (3) to co-exist alongside the others. Between (1)
> and (2), I think (2) is probably the better direction.

Thanks for the great summary! I agree they could co-exist and people
could use whatever works best for them.

I'll incorporate Eric's feedback and send a w-t-e v9 soonish.

- Lars






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