git@vger.kernel.org mailing list mirror (one of many)
 help / color / mirror / code / Atom feed
From: Taylor Blau <me@ttaylorr.com>
To: Eric Sunshine <sunshine@sunshineco.com>
Cc: Taylor Blau <me@ttaylorr.com>, Git List <git@vger.kernel.org>,
	Jeff King <peff@peff.net>, Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH v5 1/3] builtin/config: introduce `--default`
Date: Fri, 6 Apr 2018 17:49:16 -0700	[thread overview]
Message-ID: <20180407004916.GC78042@syl.local> (raw)
In-Reply-To: <CAPig+cRKaxECLHb1id6Mcd0O3uOiDzdGB4ZxPt1UpwUDi9Xb+g@mail.gmail.com>

On Fri, Apr 06, 2018 at 02:53:45AM -0400, Eric Sunshine wrote:
> On Fri, Apr 6, 2018 at 2:30 AM, Taylor Blau <me@ttaylorr.com> wrote:
> > [...]
> > This commit (and those following it in this series) aim to eventually
> > replace `--get-color` with a consistent alternative. By introducing
> > `--default`, we allow the `--get-color` action to be promoted to a
> > `--type=color` type specifier, retaining the "fallback" behavior via the
> > `--default` flag introduced in this commit.
> >
> > For example, we aim to replace:
> >
> >   $ git config --get-color variable [default] [...]
> >
> > with:
> >
> >   $ git config --default default --type=color variable [...]
> >
> > Signed-off-by: Taylor Blau <me@ttaylorr.com>
> > ---
> > diff --git a/builtin/config.c b/builtin/config.c
> > @@ -286,6 +288,16 @@ static int get_value(const char *key_, const char *regex_)
> > +       if (!values.nr && default_value) {
> > +               struct strbuf *item;
> > +               ALLOC_GROW(values.items, values.nr + 1, values.alloc);
> > +               item = &values.items[values.nr++];
> > +               strbuf_init(item, 0);
> > +               if (format_config(item, key_, default_value) < 0) {
> > +                       die(_("failed to format default config value"));
> > +               }
>
> Unnecessary braces.

Ah, that's leftover from changing this around in your last round of
review. Cleaned up locally.

> Also, an error message such as this is typically more helpful when it
> shows the item which caused the problem:
>
>     die(_("failed to format default config value: %s"), default_value);
>
> However, since the message already says "default", it's pretty easy to
> understand that it's talking about the argument to --default, so it's
> perhaps not such a big deal in this case.
>
> Anyhow, neither point is worth a re-roll.

I like including the value of default_value. I've included it locally,

>
> > +       }
> > @@ -624,6 +636,13 @@ int cmd_config(int argc, const char **argv, const char *prefix)
> >                 usage_with_options(builtin_config_usage, builtin_config_options);
> >         }
> >
> > +
>
> Unnecessary new blank line.
>
> > +       if (default_value && !(actions & ACTION_GET)) {
> > +               error("--default is only applicable to --get");
> > +               usage_with_options(builtin_config_usage,
> > +                       builtin_config_options);
> > +       }
> > diff --git a/t/t1310-config-default.sh b/t/t1310-config-default.sh
> > @@ -0,0 +1,38 @@
> > +test_expect_success 'uses --default when missing entry' '
> > +       echo quux >expect &&
> > +       git config -f config --default quux core.foo >actual &&
> > +       test_cmp expect actual
> > +'
> >
> > +test_expect_success 'canonicalizes --default with appropriate type' '
> > +       echo true >expect &&
> > +       git config -f config --default=true --bool core.foo >actual &&
> > +       test_cmp expect actual
> > +'
>
> I would trust this canonicalization test a lot more if it used one of
> the aliases for "true" since it doesn't presently prove that
> canonicalization is taking place. For instance:
>
>     git config -f config --default=yes --bool core.foo >actual &&
>
> > +test_expect_success 'uses entry when available' '
> > +       echo bar >expect &&
> > +       git config --add core.foo bar &&
> > +       git config --default baz core.foo >actual &&
> > +       git config --unset core.foo &&
> > +       test_cmp expect actual
> > +'
>
> If you happen to re-roll, can we move this test so it immediately
> follows the "uses --default when missing entry" test? That's where I
> had expected to find it and had even written a review comment saying
> so (but deleted the comment once I got down to this spot in the
> patch). Also, perhaps rename the test to make it clearer that it
> complements the "uses --default when missing entry" test; perhaps
> "does not fallback to --default when entry present" or something.

That location makes much more sense, as does using --default=yes to
ensure that canonicalization is taking place. I've updated that locally,
as well as the preceding test to make it clearer that they are
contrasting tests:

	- 'falls back to --default when missing entry'
	- 'does not fallback to --default when entry present'

Though I am not sure about "falls back" to mean "uses --default". I am
not sure which to pick here... what are your thoughts?

Thanks,
Taylor

  parent reply	other threads:[~2018-04-07  0:49 UTC|newest]

Thread overview: 83+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-06  2:17 [PATCH 0/4] Teach `--default` to `git-config(1)` Taylor Blau
2018-03-06  2:17 ` [PATCH 1/4] builtin/config: introduce `--default` Taylor Blau
2018-03-06  6:52   ` Jeff King
2018-03-06  7:14     ` Eric Sunshine
2018-03-06  7:08   ` Eric Sunshine
2018-03-06  2:17 ` [PATCH 2/4] Documentation: list all type specifiers in config prose Taylor Blau
2018-03-06  6:52   ` Jeff King
2018-03-06  7:40     ` Junio C Hamano
2018-03-06  2:17 ` [PATCH 3/4] config.c: introduce 'git_config_color' to parse ANSI colors Taylor Blau
2018-03-06  6:53   ` Jeff King
2018-03-06  2:17 ` [PATCH 4/4] builtin/config: introduce `--color` type specifier Taylor Blau
2018-03-06  7:00   ` Jeff King
2018-03-06  2:20 ` [PATCH 0/4] Teach `--default` to `git-config(1)` Taylor Blau
2018-03-24  0:55 ` [PATCH v2 " Taylor Blau
2018-03-24  0:55   ` [PATCH v2 1/4] builtin/config: introduce `--default` Taylor Blau
2018-03-26  8:34     ` Jeff King
2018-03-29  1:31       ` Taylor Blau
2018-03-24  0:55   ` [PATCH v2 2/4] Documentation: list all type specifiers in config prose Taylor Blau
2018-03-26  8:55     ` Jeff King
2018-03-29  1:32       ` Taylor Blau
2018-03-24  0:55   ` [PATCH v2 3/4] config.c: introduce 'git_config_color' to parse ANSI colors Taylor Blau
2018-03-24  0:55   ` [PATCH v2 4/4] builtin/config: introduce `--color` type specifier Taylor Blau
2018-03-26  9:16     ` Jeff King
2018-03-29  1:36       ` Taylor Blau
2018-03-26  9:18   ` [PATCH v2 0/4] Teach `--default` to `git-config(1)` Jeff King
2018-03-29  1:16   ` [PATCH v3 " Taylor Blau
2018-03-29  1:16     ` [PATCH v3 1/3] builtin/config: introduce `--default` Taylor Blau
2018-03-30 18:06       ` Junio C Hamano
2018-04-05  2:45         ` Taylor Blau
2018-03-30 20:23       ` Eric Sunshine
2018-04-05  2:46         ` Taylor Blau
2018-03-29  1:16     ` [PATCH v3 2/3] config.c: introduce 'git_config_color' to parse ANSI colors Taylor Blau
2018-03-30 20:26       ` Eric Sunshine
2018-04-05  2:47         ` Taylor Blau
2018-03-29  1:16     ` [PATCH v3 3/3] builtin/config: introduce `color` type specifier Taylor Blau
2018-03-30 18:09       ` Junio C Hamano
2018-04-05  2:48         ` Taylor Blau
2018-03-29  1:29     ` [PATCH v3 0/4] Teach `--default` to `git-config(1)` Taylor Blau
2018-04-05  2:58     ` [PATCH v4 0/3] " Taylor Blau
2018-04-05 22:37       ` Jeff King
     [not found]     ` <cover.1522896713.git.me@ttaylorr.com>
2018-04-05  2:59       ` [PATCH v4 1/3] builtin/config: introduce `--default` Taylor Blau
2018-04-05 22:29         ` Jeff King
2018-04-06  5:40           ` Taylor Blau
2018-04-08 23:18           ` Junio C Hamano
2018-04-10  0:20             ` Taylor Blau
2018-04-05 22:40         ` Eric Sunshine
2018-04-06  5:50           ` Taylor Blau
2018-04-05  2:59       ` [PATCH v4 2/3] config.c: introduce 'git_config_color' to parse ANSI colors Taylor Blau
2018-04-05  2:59       ` [PATCH v4 3/3] builtin/config: introduce `color` type specifier Taylor Blau
2018-04-05 22:36         ` Jeff King
2018-04-05 22:52           ` Eric Sunshine
2018-04-05 22:53             ` Jeff King
2018-04-06  6:05               ` Taylor Blau
2018-04-06  6:02           ` Taylor Blau
2018-04-06  5:27     ` [PATCH v5 0/2] *** SUBJECT HERE *** Taylor Blau
2018-04-06  5:40       ` Jacob Keller
2018-04-06  5:29     ` [PATCH v5 0/2] builtin/config.c: prefer `--type=bool` over `--bool`, etc Taylor Blau
2018-04-06  5:32       ` Taylor Blau
     [not found]     ` <cover.1522992443.git.me@ttaylorr.com>
2018-04-06  5:29       ` [PATCH v5 1/2] builtin/config.c: treat type specifiers singularly Taylor Blau
2018-04-06  5:29       ` [PATCH v5 2/2] builtin/config.c: prefer `--type=bool` over `--bool`, etc Taylor Blau
2018-04-06  6:14         ` Eric Sunshine
2018-04-06  6:41           ` Taylor Blau
2018-04-06 14:55           ` Jeff King
2018-04-07  1:00             ` Taylor Blau
2018-04-06  6:30 ` [PATCH v5 0/3] builtin/config: introduce `--default` Taylor Blau
     [not found] ` <cover.1522996150.git.me@ttaylorr.com>
2018-04-06  6:30   ` [PATCH v5 1/3] " Taylor Blau
2018-04-06  6:53     ` Eric Sunshine
2018-04-06  7:40       ` Eric Sunshine
2018-04-07  0:58         ` Taylor Blau
2018-04-07  8:44           ` Eric Sunshine
2018-04-07  0:49       ` Taylor Blau [this message]
2018-04-07  8:38         ` Eric Sunshine
2018-04-06  6:30   ` [PATCH v5 2/3] config.c: introduce 'git_config_color' to parse ANSI colors Taylor Blau
2018-04-06  6:30   ` [PATCH v5 3/3] builtin/config: introduce `color` type specifier Taylor Blau
2018-04-06  7:29     ` Eric Sunshine
2018-04-07  0:42       ` Taylor Blau
2018-04-10  0:18 ` [PATCH v6 0/3] Teach `--default` to `git-config(1)` Taylor Blau
     [not found] ` <cover.1523319159.git.me@ttaylorr.com>
2018-04-10  0:18   ` [PATCH v6 1/3] builtin/config: introduce `--default` Taylor Blau
2018-04-10  1:50     ` Junio C Hamano
2018-04-10  0:18   ` [PATCH v6 2/3] config.c: introduce 'git_config_color' to parse ANSI colors Taylor Blau
2018-04-10  0:18   ` [PATCH v6 3/3] builtin/config: introduce `color` type specifier Taylor Blau
2018-04-10  0:18   ` Taylor Blau
2018-04-10  1:54     ` Junio C Hamano

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=20180407004916.GC78042@syl.local \
    --to=me@ttaylorr.com \
    --cc=git@vger.kernel.org \
    --cc=gitster@pobox.com \
    --cc=peff@peff.net \
    --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).