From: Phillip Wood <phillip.wood@talktalk.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: Git Mailing List <git@vger.kernel.org>,
Johannes Schindelin <Johannes.Schindelin@gmx.de>,
Ramsay Jones <ramsay@ramsayjones.plus.com>,
Adam Dinwoodie <adam@dinwoodie.org>,
Stefan Beller <sbeller@google.com>,
Phillip Wood <phillip.wood@dunelm.org.uk>
Subject: Re: [PATCH v4 7/9] sequencer: load commit related config
Date: Tue, 5 Dec 2017 11:21:04 +0000 [thread overview]
Message-ID: <632c35d3-46ca-e0bc-5b14-244647df9b19@talktalk.net> (raw)
In-Reply-To: <xmqqd13umjl7.fsf@gitster.mtv.corp.google.com>
On 04/12/17 18:30, Junio C Hamano wrote:
> Phillip Wood <phillip.wood@talktalk.net> writes:
>
>> --- a/builtin/rebase--helper.c
>> +++ b/builtin/rebase--helper.c
>> @@ -9,6 +9,17 @@ static const char * const builtin_rebase_helper_usage[] = {
>> NULL
>> };
>>
>> +static int git_rebase_helper_config(const char *k, const char *v, void *cb)
>> +{
>> + int status;
>> +
>> + status = git_sequencer_config(k, v, NULL);
>> + if (status)
>> + return status;
>> +
>> + return git_default_config(k, v, NULL);
>> +}
>> +
>
> Sorry for spotting the problem this late, but this code is
> unfortunate and we will need to revisit it later; we may want to do
> so sooner rather than later.
If it needs fixing then doing it before it hits next makes sense.
> When k,v is a valid configuration that is handled by
> sequencer_config() successfully, this code still needs to call into
> default_config() with the same k,v, only to get it ignored.
I'm a bit confused by this sentence. Do you mean that when k,v is a
valid configuration that is successfully handled by sequencer_config()
this code unnecessarily calls default_config() as there is no need to
call default_config() if k,v have already been handled?
> The problem lies in the (mis)design of git_sequencer_config(). The
> function should either allow the caller to notice that (k,v) has
> already been handled, or be the last one in the callback by making a
> call to default_config() itself.
The problem is that git_gpg_config() provides no indication if it has
handled k,v so there's no way to avoid the call to default_config() in
that case. builtin/am.c and builtin/commit.c both do something like
static int git_am_config(const char *k, const char *v, void *cb)
{
int status;
status = git_gpg_config(k, v, NULL);
if (status)
return status;
return git_default_config(k, v, NULL);
}
Looking more generally at sequencer_config() I wonder if we should be
providing a warning or an error if the config contains an invalid
cleanup mode. Also should it be calling git_diff_ui_config() to set
things up for print_commit_summary()? (I'm not sure if anything in that
function is affected by diff config settings)
Let me know what you think. I should have time to update this patch set
later in the week.
Best Wishes
Phillip
> For the former, because this helper does not have to be called
> directly as a git_config() callback, but instead it is always meant
> to be called indirectly from another git_config() callback (like
> git_rebase_helper_config() here, and common_config() in
> builtin/revert.c like we see below), it does *not* have to be
> constrained by the function signature required for it to be a config
> callback. It could take a pointer to an int that stores if 'k' was
> handled inside the function,
>
> int git_sequencer_config_helper(char *k, char *v, int *handled);
>
> for example.
>
next prev parent reply other threads:[~2017-12-05 11:21 UTC|newest]
Thread overview: 120+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-25 10:10 [RFC PATCH 0/8] sequencer: dont't fork git commit Phillip Wood
2017-09-25 10:10 ` [RFC PATCH 1/8] commit: move empty message checks to libgit Phillip Wood
2017-09-25 10:10 ` [RFC PATCH 2/8] commit: move code to update HEAD " Phillip Wood
2017-10-07 9:54 ` Junio C Hamano
2017-10-24 10:01 ` Phillip Wood
2017-10-24 12:41 ` Junio C Hamano
2017-09-25 10:10 ` [RFC PATCH 3/8] sequencer: refactor update_head() Phillip Wood
2017-09-25 10:10 ` [RFC PATCH 4/8] commit: move post-rewrite code to libgit Phillip Wood
2017-09-25 10:10 ` [RFC PATCH 5/8] commit: move print_commit_summary() " Phillip Wood
2017-09-25 10:10 ` [RFC PATCH 6/8] sequencer: simplify adding Signed-off-by: trailer Phillip Wood
2017-09-25 10:10 ` [RFC PATCH 7/8] sequencer: load commit related config Phillip Wood
2017-09-25 10:10 ` [RFC PATCH 8/8] sequencer: try to commit without forking 'git commit' Phillip Wood
2017-11-06 11:27 ` [PATCH v1 0/8] sequencer: dont't fork git commit Phillip Wood
2017-11-06 11:27 ` [PATCH v1 1/8] commit: move empty message checks to libgit Phillip Wood
2017-11-07 0:43 ` Johannes Schindelin
2017-11-07 14:24 ` Phillip Wood
2017-11-06 11:27 ` [PATCH v1 2/8] Add a function to update HEAD after creating a commit Phillip Wood
2017-11-07 2:56 ` Junio C Hamano
2017-11-07 3:02 ` Johannes Schindelin
2017-11-07 14:26 ` Phillip Wood
2017-11-06 11:27 ` [PATCH v1 3/8] commit: move post-rewrite code to libgit Phillip Wood
2017-11-07 3:03 ` Junio C Hamano
2017-11-07 14:28 ` Phillip Wood
2017-11-06 11:27 ` [PATCH v1 4/8] commit: move print_commit_summary() " Phillip Wood
2017-11-07 3:38 ` Junio C Hamano
2017-11-07 14:32 ` Phillip Wood
2017-11-08 1:04 ` Junio C Hamano
2017-11-06 11:27 ` [PATCH v1 5/8] sequencer: don't die in print_commit_summary() Phillip Wood
2017-11-07 4:18 ` Junio C Hamano
2017-11-07 10:24 ` Johannes Schindelin
2017-11-07 15:13 ` Junio C Hamano
2017-11-10 14:53 ` Phillip Wood
2017-11-10 18:05 ` Junio C Hamano
2017-11-13 11:11 ` Phillip Wood
2017-11-06 11:27 ` [PATCH v1 6/8] sequencer: simplify adding Signed-off-by: trailer Phillip Wood
2017-11-07 0:52 ` Johannes Schindelin
2017-11-07 4:52 ` Junio C Hamano
2017-11-07 14:46 ` Phillip Wood
2017-11-06 11:27 ` [PATCH v1 7/8] sequencer: load commit related config Phillip Wood
2017-11-07 1:02 ` Johannes Schindelin
2017-11-07 10:50 ` Phillip Wood
2017-11-06 11:27 ` [PATCH v1 8/8] sequencer: try to commit without forking 'git commit' Phillip Wood
2017-11-07 1:36 ` Johannes Schindelin
2017-11-07 11:16 ` Phillip Wood
2017-11-07 14:09 ` Johannes Schindelin
2017-11-10 11:09 ` [PATCH v2 0/9] sequencer: dont't fork git commit Phillip Wood
2017-11-10 11:09 ` [PATCH v2 1/9] t3404: check intermediate squash messages Phillip Wood
2017-11-10 11:09 ` [PATCH v2 2/9] commit: move empty message checks to libgit Phillip Wood
2017-11-10 18:51 ` Ramsay Jones
2017-11-13 11:08 ` Phillip Wood
2017-11-10 11:09 ` [PATCH v2 3/9] Add a function to update HEAD after creating a commit Phillip Wood
2017-11-10 18:36 ` Junio C Hamano
2017-11-13 11:25 ` Phillip Wood
2017-11-10 11:09 ` [PATCH v2 4/9] commit: move post-rewrite code to libgit Phillip Wood
2017-11-10 11:09 ` [PATCH v2 5/9] commit: move print_commit_summary() " Phillip Wood
2017-11-10 11:09 ` [PATCH v2 6/9] sequencer: don't die in print_commit_summary() Phillip Wood
2017-11-10 11:09 ` [PATCH v2 7/9] sequencer: simplify adding Signed-off-by: trailer Phillip Wood
2017-11-10 11:09 ` [PATCH v2 8/9] sequencer: load commit related config Phillip Wood
2017-11-10 11:09 ` [PATCH v2 9/9] sequencer: try to commit without forking 'git commit' Phillip Wood
2017-11-10 19:21 ` [PATCH v2 0/9] sequencer: dont't fork git commit Junio C Hamano
2017-11-13 11:24 ` Phillip Wood
2017-11-14 1:15 ` Junio C Hamano
2017-11-17 11:34 ` [PATCH v3 0/8] sequencer: don't " Phillip Wood
2017-11-17 11:34 ` [PATCH v3 1/8] t3404: check intermediate squash messages Phillip Wood
2017-11-17 11:34 ` [PATCH v3 2/8] commit: move empty message checks to libgit Phillip Wood
2017-11-17 11:34 ` [PATCH v3 3/8] Add a function to update HEAD after creating a commit Phillip Wood
2017-11-17 11:34 ` [PATCH v3 4/8] commit: move post-rewrite code to libgit Phillip Wood
2017-11-17 11:34 ` [PATCH v3 5/8] commit: move print_commit_summary() " Phillip Wood
2017-11-17 11:34 ` [PATCH v3 6/8] sequencer: simplify adding Signed-off-by: trailer Phillip Wood
2017-11-17 11:34 ` [PATCH v3 7/8] sequencer: load commit related config Phillip Wood
2017-11-17 11:34 ` [PATCH v3 8/8] sequencer: try to commit without forking 'git commit' Phillip Wood
2017-11-18 3:41 ` [PATCH v3 0/8] sequencer: don't fork git commit Junio C Hamano
2017-11-18 3:57 ` Junio C Hamano
2017-11-18 11:32 ` Phillip Wood
2017-11-18 14:33 ` Phillip Wood
2017-11-24 11:07 ` [PATCH v4 0/9] " Phillip Wood
2017-11-24 11:07 ` [PATCH v4 1/9] t3404: check intermediate squash messages Phillip Wood
2017-11-24 11:07 ` [PATCH v4 2/9] commit: move empty message checks to libgit Phillip Wood
2017-11-24 11:07 ` [PATCH v4 3/9] Add a function to update HEAD after creating a commit Phillip Wood
2017-11-24 11:07 ` [PATCH v4 4/9] commit: move post-rewrite code to libgit Phillip Wood
2017-11-24 11:07 ` [PATCH v4 5/9] commit: move print_commit_summary() " Phillip Wood
2017-11-24 11:07 ` [PATCH v4 6/9] sequencer: simplify adding Signed-off-by: trailer Phillip Wood
2017-11-24 11:07 ` [PATCH v4 7/9] sequencer: load commit related config Phillip Wood
2017-11-24 13:48 ` Junio C Hamano
2017-11-24 14:38 ` Phillip Wood
2017-12-04 18:30 ` Junio C Hamano
2017-12-05 11:21 ` Phillip Wood [this message]
2017-12-05 12:10 ` Phillip Wood
2017-12-09 19:05 ` Phillip Wood
2017-11-24 11:07 ` [PATCH v4 8/9] sequencer: try to commit without forking 'git commit' Phillip Wood
2017-11-24 11:07 ` [PATCH v4 9/9] t3512/t3513: remove KNOWN_FAILURE_CHERRY_PICK_SEES_EMPTY_COMMIT=1 Phillip Wood
2017-12-04 19:24 ` Stefan Beller
2017-12-05 12:13 ` Phillip Wood
2017-12-11 14:13 ` [PATCH v5 0/9] sequencer: don't fork git commit Phillip Wood
2017-12-11 14:13 ` [PATCH v5 1/9] t3404: check intermediate squash messages Phillip Wood
2017-12-11 14:13 ` [PATCH v5 2/9] commit: move empty message checks to libgit Phillip Wood
2017-12-11 14:13 ` [PATCH v5 3/9] Add a function to update HEAD after creating a commit Phillip Wood
2017-12-11 14:13 ` [PATCH v5 4/9] commit: move post-rewrite code to libgit Phillip Wood
2017-12-11 14:13 ` [PATCH v5 5/9] commit: move print_commit_summary() " Phillip Wood
2017-12-11 14:13 ` [PATCH v5 6/9] sequencer: simplify adding Signed-off-by: trailer Phillip Wood
2017-12-11 14:13 ` [PATCH v5 7/9] sequencer: load commit related config Phillip Wood
2017-12-11 18:53 ` Phillip Wood
2017-12-11 14:13 ` [PATCH v5 8/9] sequencer: try to commit without forking 'git commit' Phillip Wood
2018-01-10 20:53 ` Jonathan Nieder
2018-01-10 22:40 ` Johannes Schindelin
2018-01-11 10:41 ` Phillip Wood
2018-01-11 20:21 ` Johannes Schindelin
2017-12-11 14:13 ` [PATCH v5 9/9] t3512/t3513: remove KNOWN_FAILURE_CHERRY_PICK_SEES_EMPTY_COMMIT=1 Phillip Wood
2017-12-11 23:44 ` [PATCH v5 0/9] sequencer: don't fork git commit Junio C Hamano
2017-12-12 10:32 ` Phillip Wood
2017-12-13 11:46 ` [PATCH] sequencer: improve config handling Phillip Wood
2017-12-20 18:33 ` Error in `git': free(): invalid pointer (was Re: [PATCH] sequencer: improve config handling) Kaartic Sivaraam
2017-12-21 14:06 ` Johannes Schindelin
2017-12-21 16:42 ` Kaartic Sivaraam
2017-12-22 11:49 ` Johannes Schindelin
2017-12-25 8:51 ` Kaartic Sivaraam
[not found] ` <18737953.1042351513802399608.JavaMail.defaultUser@defaultHost>
2017-12-21 15:02 ` Kaartic Sivaraam
2017-12-21 16:53 ` phillip.wood
2017-12-21 17:14 ` Kaartic Sivaraam
2017-12-22 10:47 ` phillip.wood
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