From: Junio C Hamano <gitster@pobox.com>
To: ZheNing Hu <adlternative@gmail.com>
Cc: ZheNing Hu via GitGitGadget <gitgitgadget@gmail.com>,
Git List <git@vger.kernel.org>,
Christian Couder <christian.couder@gmail.com>,
Hariom Verma <hariom18599@gmail.com>
Subject: Re: [PATCH 4/6] [GSOC] ref-filter: add %(rest) atom and --rest option
Date: Tue, 08 Jun 2021 15:50:25 +0900 [thread overview]
Message-ID: <xmqqo8cgq28e.fsf@gitster.g> (raw)
In-Reply-To: CAOLTT8S+5m+-XF-AcQi9t8njTvyDYzHt=BU+4OPcvTT27RP6dw@mail.gmail.com
ZheNing Hu <adlternative@gmail.com> writes:
> First of all, although %(rest) is meaningless in ordinary circumstances,
> ref-filter must learn %(rest), it is impossible for us to leave the parsing
> of %(rest) in cat-file.c alone.
Oh, there is no question about that.
> Then, `--rest` is a strategy that make %(rest) can use in `git for-each-ref`
> or `git branch -l`.
If there is no need to expose %(rest) to the users who write
--format for these two commands, it would be much better to detect
attempted use of %(rest) and error out.
> This sounds like it might help `cat-file` to reject some useless atoms
> like %(refname).
Yes.
> So something like:
>
> $ git for-each-ref --format="%(objectname) %(objectsize)"
> --refject-atoms="%(objectsize) %(objectname)"
>
> will fail.
I don't understand. Why do you even need to add --reject? Why
would any user would want to use it with for-each-ref?
Without any end-user input, %(rest) for for-each-ref would not make
sense, and %(refname) for cat-file --batch would not make sense, I
would imagine, so there is no need to be able to tell --reject=rest
to for-each-ref. It is not like giving --no-reject=rest to for-each-ref
and make it interpolate to an empty string is a useful feature anyway,
so I do not see a need for such an option.
next prev parent reply other threads:[~2021-06-08 6:50 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-05 9:13 [PATCH 0/6] [GSOC][RFC] ref-filter: add %(raw:textconv) and %(raw:filters) ZheNing Hu via GitGitGadget
2021-06-05 9:13 ` [PATCH 1/6] [GSOC] ref-filter: add obj-type check in grab contents ZheNing Hu via GitGitGadget
2021-06-05 9:13 ` [PATCH 2/6] [GSOC] ref-filter: add %(raw) atom ZheNing Hu via GitGitGadget
2021-06-08 5:07 ` Junio C Hamano
2021-06-08 6:10 ` ZheNing Hu
2021-06-05 9:13 ` [PATCH 3/6] [GSOC] ref-filter: use non-const ref_format in *_atom_parser() ZheNing Hu via GitGitGadget
2021-06-05 9:13 ` [PATCH 4/6] [GSOC] ref-filter: add %(rest) atom and --rest option ZheNing Hu via GitGitGadget
2021-06-05 15:20 ` Hariom verma
2021-06-06 4:58 ` ZheNing Hu
2021-06-07 5:52 ` Junio C Hamano
2021-06-07 13:02 ` ZheNing Hu
2021-06-07 13:18 ` ZheNing Hu
2021-06-08 6:16 ` ZheNing Hu
2021-06-08 6:59 ` Junio C Hamano
2021-06-08 12:39 ` ZheNing Hu
2021-06-09 7:00 ` Junio C Hamano
2021-06-09 12:47 ` ZheNing Hu
2021-06-08 6:50 ` Junio C Hamano [this message]
2021-06-08 12:32 ` ZheNing Hu
2021-06-05 9:13 ` [PATCH 5/6] [GSOC] ref-filter: teach grab_sub_body_contents() return value and err ZheNing Hu via GitGitGadget
2021-06-05 9:13 ` [PATCH 6/6] [GSOC] ref-filter: add %(raw:textconv) and %(raw:filters) ZheNing Hu via GitGitGadget
2021-06-05 10:29 ` [PATCH 0/6] [GSOC][RFC] " Bagas Sanjaya
2021-06-05 13:19 ` ZheNing Hu
2021-06-07 5:55 ` Junio C Hamano
2021-06-07 13:06 ` ZheNing Hu
2021-06-08 6:42 ` Junio C Hamano
2021-06-08 12:52 ` ZheNing Hu
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