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Re: bug: git name-rev --stdin --no-undefined on detached head

From
John Cai <jcai@gitlab.com>
Date
Dec 23, 2021, 18:39 UTC
Message-ID
<DA9B4728-C45D-4CA0-A40D-4A81665AB0E6@gitlab.com>
In-Reply-To
<CA+JQ7M-ORVCj6teGjVy01SF=f0=PdKKYdHNU9ruK9XUAX9F8Ag@mail.gmail.com>
It seems like this bug can be generalized to “git name-rev --stdin” does not work with --no-undefined nor --name-only
The --name-only case seems clear to me that we should fix it. It’s misleading to return the sha instead of “undefined” for a rev without a symbolic name, as a sha could be a symbolic name.
I think we can also make the argument that --no-undefined should also die in --stdin mode when given a rev without any symbolic names.
Show 35 quoted lines
> On Dec 22, 2021, at 2:05 AM, Erik Cervin Edin <erik@cervined.in> wrote:
> 
> Hey all!
> 
> I ran into a situation that I think may be a bug
> using git name-rev for detached heads.
> 
> Steps to reproduce:
> Create a detached head
>  git checkout --detached
>  git commit --allow-empty -m foo
> 
> Expected results:
> My understanding is that
>  git name-rev $(git rev-list -1 HEAD)
>  git rev-list -1 HEAD | git name-rev --stdin
> should yield the same result.
> 
> As well as combining with other flags
> like --name-only / --no-undefined
> 
> Actual results:
> Where this fails as expected
>  git name-rev --no-undefined $(git rev-list HEAD)
> this just prints the SHA wo failing
>  git rev-list -1 HEAD |  git name-rev --stdin --no-undefined
> 
> "name-only" is also affected
>  git rev-list -1 HEAD |  git name-rev --stdin --name-only
> returns the SHA and not the name
> 
> Tested on
> git version 2.34.1.windows.1
> -- 
> Erik Cervin-Edin
Previous: Erik Cervin EdinNext: John Cai
Message 2 of 8 in “bug: git name-rev --stdin --no-undefined on detached head”
  1. Erik Cervin EdinDec 22, 2021
  2. John CaiDec 23, 2021
  3. John CaiDec 24, 2021
  4. Erik Cervin EdinDec 24, 2021
  5. Junio C HamanoDec 24, 2021
  6. John CaiDec 24, 2021
  7. Junio C HamanoDec 25, 2021
  8. Philip OakleyDec 31, 2021

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