[llvm-dev] RFC: changing variable naming rules in LLVM codebase & git-blame

[David Zarzycki via llvm-dev]

If I’m reading the docs correctly, the community can designate a file in the repository to hold this information and then users can opt into the database by setting “blame.ignoreRevsFile” in .git/config point at that file.

> On Jul 23, 2019, at 5:46 PM, John McCall via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> 
> On 23 Jul 2019, at 11:40, Chikin, Artem via llvm-dev wrote:
>> This will be a git feature in git 2.23 (in Q3 2019).
>> It will allow git blame to ignore revisions with --ignore-rev, which the user can even specify in their git config.
> 
> This is great news.  Is there a way for a repository to seed this?  Maybe a way to (non-canonically?) tag a commit as being good to ignore by default?
> 
> John.
> 
>> 
>> Relevant git blame documentation change:
>> https://github.com/git/git/blob/ae3f36dea16e51041c56ba9ed6b38380c8421816/Documentation/blame-options.txt#L113-L125
>> 
>> Relevant git config documentation change:
>> https://github.com/git/git/blob/ae3f36dea16e51041c56ba9ed6b38380c8421816/Documentation/config/blame.txt#L23-L28
>> 
>> -----Original Message-----
>> From: llvm-dev <llvm-dev-bounces at lists.llvm.org> On Behalf Of Peter Waller via llvm-dev
>> Sent: Tuesday, July 23, 2019 11:25
>> To: llvm-dev at lists.llvm.org
>> Cc: nd <nd at arm.com>
>> Subject: Re: [llvm-dev] RFC: changing variable naming rules in LLVM codebase & git-blame
>> 
>> On 7/22/19 6:34 PM, JF Bastien via llvm-dev wrote:
>>> * How do we expect to maintain git blame history, if at all?
>> 
>> Hmm. I was hoping git-blame would have a feature which might allow ignoring commits, but seemingly not. You can ignore whitespace changes with -w, but of course that doesn't help for variable names.
>> 
>> It seems the next best thing is to blame starting at a revision. At least if there is "one big change", there is only one revision to consider. With many smaller changes that would be harder.
>> 
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