From: Junio C Hamano <gitster@pobox.com>
To: Duy Nguyen <pclouds@gmail.com>
Cc: Eric Sunshine <sunshine@sunshineco.com>,
Ramkumar Ramachandra <artagnon@gmail.com>,
Git List <git@vger.kernel.org>
Subject: Re: [PATCH 08/15] for-each-ref: get --pretty using format_commit_message
Date: Wed, 05 Jun 2013 10:09:55 -0700 [thread overview]
Message-ID: <7v61xs32n0.fsf@alter.siamese.dyndns.org> (raw)
In-Reply-To: <CACsJy8ABwroExpXQRX8OYAnDum9+sX1+JB9z+WNn+YcZoXi5KA@mail.gmail.com> (Duy Nguyen's message of "Wed, 5 Jun 2013 20:21:31 +0700")
Duy Nguyen <pclouds@gmail.com> writes:
> On Wed, Jun 5, 2013 at 4:12 AM, Eric Sunshine <sunshine@sunshineco.com> wrote:
>>> +Caveats:
>>> +
>>> +1. Many of the placeholders in "PRETTY FORMATS" are designed to work
>>> + specifically on commit objects: when non-commit objects are
>>> + supplied, those placeholders won't work.
>>
>> Should "won't work" be expanded upon? It's not clear if this means
>> that git will outright crash, or if it will abort with an appropriate
>> error message, or if the directive will be displayed as-is or removed
>> from the output.
>
> It will be displayed as-is but that's a bit inconsistent: %(unknown)
> prints error and aborts while %unknown simply produces %unknown. The
> latter is how "git log --format" does it. But I think we could make
> for-each-ref --pretty to do the former for %unknown. It'll be
> consistent with %(unknown) and we do not need to elaborate much (it's
> pretty obvious when it does not work).
The Caveat Eric is asking about talks about "what happens to a
%(field) that only makes sense for a commit when showing a ref
pointing at a non-commit?", but you are answering "what happend to a
%(invalidfield) that is not defined", aren't you?
IIRC, the reason we show literal from "log --format" is to make it
easier for the person who misspelt %placeholder to spot it in the
output, and also make it easier for the person who use %placeholder
meant for newer versions of Git with an older one. It would be a
bit unnice to die for the latter, especially if the format string is
in a script or something.
To "log --format", all input objects are expected to be commits, so
it does not have the "what does %(authordate) give when given a blob"
issue.
But for "for-each-ref --format", it is perfectly normal that you may
feed a non-commit; it makes the mechanism unusable if you errored
out %(authordate) when showing a ref that points at a tag, doesn't
it? Substituting an inapplicable placeholder with an empty string
would be an easies way out, unless it learns a flexible/elaborate
conditional formatting mechanism, I would think.
next prev parent reply other threads:[~2013-06-05 17:10 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-04 12:35 [PATCH 00/15] Towards a more awesome git-branch Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 01/15] for-each-ref, quote: convert *_quote_print -> *_quote_buf Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 02/15] for-each-ref: don't print out elements directly Ramkumar Ramachandra
2013-06-04 23:13 ` Junio C Hamano
2013-06-04 23:44 ` Duy Nguyen
2013-06-04 12:35 ` [PATCH 03/15] tar-tree: remove dependency on sq_quote_print() Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 04/15] quote: remove sq_quote_print() Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 05/15] pretty: extend pretty_print_context with callback Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 06/15] pretty: limit recursion in format_commit_one() Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 07/15] pretty: allow passing NULL commit to format_commit_message() Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 08/15] for-each-ref: get --pretty using format_commit_message Ramkumar Ramachandra
2013-06-04 21:12 ` Eric Sunshine
2013-06-05 13:21 ` Duy Nguyen
2013-06-05 17:09 ` Junio C Hamano [this message]
2013-06-06 0:07 ` Duy Nguyen
2013-06-04 12:35 ` [PATCH 09/15] for-each-ref: teach verify_format() about pretty's syntax Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 10/15] for-each-ref: introduce format specifier %>(*) and %<(*) Ramkumar Ramachandra
2013-06-04 12:54 ` Duy Nguyen
2013-06-05 8:14 ` Ramkumar Ramachandra
2013-06-05 10:15 ` Duy Nguyen
2013-06-04 12:35 ` [PATCH 11/15] for-each-ref: introduce %(HEAD) marker Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 12/15] for-each-ref: introduce %(upstream:track[short]) Ramkumar Ramachandra
2013-06-04 21:14 ` Eric Sunshine
2013-06-04 12:35 ` [PATCH 13/15] for-each-ref: improve responsiveness of %(upstream:track) Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 14/15] pretty: introduce get_pretty_userformat Ramkumar Ramachandra
2013-06-04 12:35 ` [PATCH 15/15] for-each-ref: use get_pretty_userformat in --pretty Ramkumar Ramachandra
2013-06-04 12:57 ` Duy Nguyen
2013-06-04 21:15 ` Eric Sunshine
2013-06-04 12:49 ` [PATCH 00/15] Towards a more awesome git-branch Duy Nguyen
2013-06-05 8:11 ` Ramkumar Ramachandra
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=7v61xs32n0.fsf@alter.siamese.dyndns.org \
--to=gitster@pobox.com \
--cc=artagnon@gmail.com \
--cc=git@vger.kernel.org \
--cc=pclouds@gmail.com \
--cc=sunshine@sunshineco.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).