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From: Alexandr Miloslavskiy <alexandr.miloslavskiy@syntevo.com>
To: Junio C Hamano <gitster@pobox.com>,
	Alexandr Miloslavskiy via GitGitGadget  <gitgitgadget@gmail.com>
Cc: git@vger.kernel.org,
	Paul-Sebastian Ungureanu <ungureanupaulsebastian@gmail.com>
Subject: Re: [PATCH 2/8] rm: support the --pathspec-from-file option
Date: Mon, 10 Feb 2020 15:46:58 +0100
Message-ID: <19ab18db-3149-02b1-41d8-7ddb42c3757d@syntevo.com> (raw)
In-Reply-To: <xmqqftg8a9fp.fsf@gitster-ct.c.googlers.com>

Sorry for late reply, I was on vacation. Now I'm back and ready to 
continue :)

Thanks for your review!

On 21.01.2020 20:36, Junio C Hamano wrote:
>> Decisions taken for simplicity:
>> 1) It is not allowed to pass pathspec in both args and file.
>>
>> `if (!argc)` block was adapted to work with --pathspec-from-file. For
>> that, I also had to parse pathspec earlier. Now it happens before
>> `read_cache()` / `hold_locked_index()` / `setup_work_tree()`, which
>> sounds fine to me.
> 
> That is not an explanation nor justification.

I'm not exactly sure what are you suggesting. My best guess is that you 
want to remove "`if (!argc)` block was adapted" paragraph from commit 
message? I thought about it and it feels wrong to leave this change 
unexplained. Or are you suggesting to reword it? If so, please give a hint.

>> In case of empty pathspec, there is now a clear error message instead
>> of showing usage.
> 
> Hmph, "git rm --pathspec-from-file=/dev/null" would say "nothing
> specified, nothing removed" and it makes perfect sense, but I am not
> sure "git rm" that gives the same message is better than the output
> by usage_with_options(builtin_rm_usage, builtin_rm_options).

What feels wrong to me is when I make a mistake and git just slams me 
with usage, and then it's up to me to figure what could be wrong. I 
myself struggled to find a mistake a couple times (in similar cases, not 
in this specific one) and didn't like the experience.

This could be a lot worse when there's no mistake, just the file was 
empty - but you already agreed that showing a new error message is 
reasonable with '--pathspec-from-file'.

Still, without '--pathspec-from-file', it should still be better to 
point to a specific error rather then "here's usage and try to find a 
difference". I have reworded the error message in V2 in hopes that it 
will be less controversial.

If you still don't like it, I will change it to only show the new error 
with '--pathspec-from-file'.

>> +static int ignore_unmatch = 0, pathspec_file_nul = 0;
>> +static char *pathspec_from_file = NULL;
> 
> We may want to clean these "explicitly initialize to 0/NULL" up at
> some point.  The clean-up itself would not be in the scope of this
> patch, of course, but not making it worse is something this patch
> can do to help.

Changed in V2.

  reply	other threads:[~2020-02-10 15:06 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-16 16:09 [PATCH 0/8] Support --pathspec-from-file in rm, stash Alexandr Miloslavskiy via GitGitGadget
2020-01-16 16:09 ` [PATCH 1/8] doc: rm: synchronize <pathspec> description Alexandr Miloslavskiy via GitGitGadget
2020-01-21 19:14   ` Junio C Hamano
2020-01-16 16:09 ` [PATCH 2/8] rm: support the --pathspec-from-file option Alexandr Miloslavskiy via GitGitGadget
2020-01-21 19:36   ` Junio C Hamano
2020-02-10 14:46     ` Alexandr Miloslavskiy [this message]
2020-02-10 18:48       ` Junio C Hamano
2020-02-17 17:25         ` Alexandr Miloslavskiy
2020-01-16 16:09 ` [PATCH 3/8] doc: stash: split options from description (1) Alexandr Miloslavskiy via GitGitGadget
2020-01-16 16:09 ` [PATCH 4/8] doc: stash: split options from description (2) Alexandr Miloslavskiy via GitGitGadget
2020-01-21 20:21   ` Junio C Hamano
2020-02-10 14:47     ` Alexandr Miloslavskiy
2020-01-16 16:09 ` [PATCH 5/8] doc: stash: document more options Alexandr Miloslavskiy via GitGitGadget
2020-01-21 20:29   ` Junio C Hamano
2020-01-16 16:09 ` [PATCH 6/8] doc: stash: synchronize <pathspec> description Alexandr Miloslavskiy via GitGitGadget
2020-01-21 20:29   ` Junio C Hamano
2020-01-16 16:09 ` [PATCH 7/8] stash: eliminate crude option parsing Alexandr Miloslavskiy via GitGitGadget
2020-01-16 16:09 ` [PATCH 8/8] stash push: support the --pathspec-from-file option Alexandr Miloslavskiy via GitGitGadget
2020-02-10 14:45 ` [PATCH v2 0/8] Support --pathspec-from-file in rm, stash Alexandr Miloslavskiy via GitGitGadget
2020-02-10 14:45   ` [PATCH v2 1/8] doc: rm: synchronize <pathspec> description Alexandr Miloslavskiy via GitGitGadget
2020-02-10 14:45   ` [PATCH v2 2/8] rm: support the --pathspec-from-file option Alexandr Miloslavskiy via GitGitGadget
2020-02-10 20:39     ` Junio C Hamano
2020-02-17 17:27       ` Alexandr Miloslavskiy
2020-02-17 17:59         ` Junio C Hamano
2020-02-17 21:03           ` Junio C Hamano
2020-02-10 14:45   ` [PATCH v2 3/8] doc: stash: split options from description (1) Alexandr Miloslavskiy via GitGitGadget
2020-02-10 14:45   ` [PATCH v2 4/8] doc: stash: split options from description (2) Alexandr Miloslavskiy via GitGitGadget
2020-02-10 14:45   ` [PATCH v2 5/8] doc: stash: document more options Alexandr Miloslavskiy via GitGitGadget
2020-02-10 14:45   ` [PATCH v2 6/8] doc: stash: synchronize <pathspec> description Alexandr Miloslavskiy via GitGitGadget
2020-02-10 14:45   ` [PATCH v2 7/8] stash: eliminate crude option parsing Alexandr Miloslavskiy via GitGitGadget
2020-02-10 14:45   ` [PATCH v2 8/8] stash push: support the --pathspec-from-file option Alexandr Miloslavskiy via GitGitGadget
2020-02-17 17:25   ` [PATCH v3 0/8] Support --pathspec-from-file in rm, stash Alexandr Miloslavskiy via GitGitGadget
2020-02-17 17:25     ` [PATCH v3 1/8] doc: rm: synchronize <pathspec> description Alexandr Miloslavskiy via GitGitGadget
2020-02-17 17:25     ` [PATCH v3 2/8] rm: support the --pathspec-from-file option Alexandr Miloslavskiy via GitGitGadget
2020-02-17 18:06       ` Alexandr Miloslavskiy
2020-02-17 17:25     ` [PATCH v3 3/8] doc: stash: split options from description (1) Alexandr Miloslavskiy via GitGitGadget
2020-02-17 17:25     ` [PATCH v3 4/8] doc: stash: split options from description (2) Alexandr Miloslavskiy via GitGitGadget
2020-02-17 17:25     ` [PATCH v3 5/8] doc: stash: document more options Alexandr Miloslavskiy via GitGitGadget
2020-02-17 17:25     ` [PATCH v3 6/8] doc: stash: synchronize <pathspec> description Alexandr Miloslavskiy via GitGitGadget
2020-02-17 17:25     ` [PATCH v3 7/8] stash: eliminate crude option parsing Alexandr Miloslavskiy via GitGitGadget
2020-02-17 17:25     ` [PATCH v3 8/8] stash push: support the --pathspec-from-file option Alexandr Miloslavskiy via GitGitGadget

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