git@vger.kernel.org mailing list mirror (one of many)
 help / color / mirror / code / Atom feed
From: Jonathan Tan <jonathantanmy@google.com>
To: chooglen@google.com
Cc: git@vger.kernel.org, jonathantanmy@google.com,
	steadmon@google.com, emilyshaffer@google.com
Subject: Re: [PATCH 3/4] branch: add --dry-run option to branch
Date: Tue, 23 Nov 2021 15:10:35 -0800	[thread overview]
Message-ID: <20211123231035.3607109-1-jonathantanmy@google.com> (raw)
In-Reply-To: <20211122223252.19922-4-chooglen@google.com>

Glen Choo <chooglen@google.com> writes:
> When running "git branch --recurse-submodules topic"

At this point, this argument has not been introduced yet, so better to
just say "A future patch will introduce branch creation that recurses
into submodules, so..."

> +-n::
> +--dry-run::
> +	Can only be used when creating a branch. If the branch creation
> +	would fail, show the relevant error message. If the branch
> +	creation would succeed, show nothing.

Right now we only plan to use this internally so it's not worth using a
single character argument for this right now, I think. We can always add
it later if we find it useful.

> -	if (!!delete + !!rename + !!copy + !!new_upstream + !!show_current +
> -	    list + edit_description + unset_upstream > 1)
> +	create = 1 - (!!delete + !!rename + !!copy + !!new_upstream +
> +		      !!show_current + !!list + !!edit_description +
> +		      !!unset_upstream);
> +	if (create < 0)
>  		usage_with_options(builtin_branch_usage, options);

Hmm...I think it would be clearer just to call it noncreate_options and
print usage if it is greater than 1. Then whenever you want to check if
it's create, check `!noncreate_options` instead.

> @@ -852,10 +862,20 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
>  		if (track == BRANCH_TRACK_OVERRIDE)
>  			die(_("the '--set-upstream' option is no longer supported. Please use '--track' or '--set-upstream-to' instead."));
>  
> -		create_branch(the_repository,
> -			      argv[0], (argc == 2) ? argv[1] : head,
> -			      force, 0, reflog, quiet, track);
> +		if (dry_run) {
> +			struct strbuf buf = STRBUF_INIT;
> +			char *unused_full_ref;
> +			struct object_id unused_oid;
>  
> +			validate_new_branchname(branch_name, &buf, force);
> +			validate_branch_start(the_repository, start_name, track,
> +					      &unused_oid, &unused_full_ref);
> +			strbuf_release(&buf);
> +			FREE_AND_NULL(unused_full_ref);
> +			return 0;
> +		}
> +		create_branch(the_repository, branch_name, start_name, force, 0,
> +			      reflog, quiet, track);
>  	} else
>  		usage_with_options(builtin_branch_usage, options);
>  

I don't think we should use separate code paths for the dry run and the
regular run - could create_branch() take a dry_run parameter instead?
(If there are too many boolean parameters, it might be time to convert
some or all to a struct.)

This suggestion would require a reworking of patch 2, which is why I
didn't comment there. But if we are not going to use this suggestion and
are going to stick with patch 2, then my comment on it is that it seems
to be doing too much: I ran "git show --color-moved" on it and saw that
quite a few lines were newly introduced (not just moved around).

  parent reply	other threads:[~2021-11-23 23:10 UTC|newest]

Thread overview: 110+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-22 22:32 [PATCH 0/4] implement branch --recurse-submodules Glen Choo
2021-11-22 22:32 ` [PATCH 1/4] submodule-config: add submodules_of_tree() helper Glen Choo
2021-11-23  2:12   ` Jonathan Tan
2021-11-23 19:48     ` Glen Choo
2021-11-23 10:53   ` Ævar Arnfjörð Bjarmason
2021-11-23 18:35     ` Glen Choo
2021-11-23 22:46   ` Junio C Hamano
2021-11-22 22:32 ` [PATCH 2/4] branch: refactor out branch validation from create_branch() Glen Choo
2021-11-22 22:32 ` [PATCH 3/4] branch: add --dry-run option to branch Glen Choo
2021-11-23 10:42   ` Ævar Arnfjörð Bjarmason
2021-11-23 18:42     ` Glen Choo
2021-11-23 23:10   ` Jonathan Tan [this message]
2021-11-24  0:52     ` Glen Choo
2021-11-22 22:32 ` [PATCH 4/4] branch: add --recurse-submodules option for branch creation Glen Choo
2021-11-23 10:45   ` Ævar Arnfjörð Bjarmason
2021-11-23 18:56     ` Glen Choo
2021-11-23 19:41   ` Philippe Blain
2021-11-23 23:43     ` Glen Choo
2021-11-24  1:31   ` Jonathan Tan
2021-11-24 18:18     ` Glen Choo
2021-11-29 21:01       ` Jonathan Tan
2021-12-06 21:55 ` [PATCH v2 0/3] implement branch --recurse-submodules Glen Choo
2021-12-06 21:55   ` [PATCH v2 1/3] branch: move --set-upstream-to behavior to setup_tracking() Glen Choo
2021-12-06 22:48     ` Junio C Hamano
2021-12-08 18:48       ` Glen Choo
2021-12-06 23:28     ` Junio C Hamano
2021-12-08 17:09       ` Glen Choo
2021-12-06 21:55   ` [PATCH v2 2/3] builtin/branch: clean up action-picking logic in cmd_branch() Glen Choo
2021-12-06 21:55   ` [PATCH v2 3/3] branch: add --recurse-submodules option for branch creation Glen Choo
2021-12-09 18:49   ` [PATCH v3 0/5] implement branch --recurse-submodules Glen Choo
2021-12-09 18:49     ` [PATCH v3 1/5] branch: move --set-upstream-to behavior to setup_tracking() Glen Choo
2021-12-09 21:19       ` Jonathan Tan
2021-12-09 22:16         ` Glen Choo
2021-12-09 18:49     ` [PATCH v3 2/5] branch: remove forward declaration of validate_branch_start() Glen Choo
2021-12-09 18:49     ` [PATCH v3 3/5] builtin/branch: clean up action-picking logic in cmd_branch() Glen Choo
2021-12-09 21:23       ` Jonathan Tan
2021-12-09 21:57         ` Glen Choo
2021-12-09 18:49     ` [PATCH v3 4/5] branch: add --recurse-submodules option for branch creation Glen Choo
2021-12-11 18:08       ` Philippe Blain
2021-12-14 20:08         ` Glen Choo
2021-12-09 18:49     ` [PATCH v3 5/5] branch.c: replace questionable exit() codes Glen Choo
2021-12-10  2:21       ` Ævar Arnfjörð Bjarmason
2021-12-10 17:43         ` Glen Choo
2021-12-13  9:02         ` Junio C Hamano
2021-12-13  9:19           ` Ævar Arnfjörð Bjarmason
2021-12-13 19:26             ` Junio C Hamano
2021-12-09 21:59     ` [PATCH v3 0/5] implement branch --recurse-submodules Jonathan Tan
2021-12-09 22:21       ` Glen Choo
2021-12-13 23:20         ` Jonathan Tan
2021-12-14 18:47           ` Glen Choo
2021-12-16  0:32     ` [PATCH v4 " Glen Choo
2021-12-16  0:32       ` [PATCH v4 1/5] branch: move --set-upstream-to behavior to dwim_and_setup_tracking() Glen Choo
2021-12-16  0:32       ` [PATCH v4 2/5] branch: make create_branch() always create a branch Glen Choo
2021-12-16  0:32       ` [PATCH v4 3/5] branch: add a dry_run parameter to create_branch() Glen Choo
2021-12-16  0:32       ` [PATCH v4 4/5] builtin/branch: clean up action-picking logic in cmd_branch() Glen Choo
2021-12-16  0:32       ` [PATCH v4 5/5] branch: add --recurse-submodules option for branch creation Glen Choo
2021-12-16 23:33       ` [PATCH v5 0/5] implement branch --recurse-submodules Glen Choo
2021-12-16 23:33         ` [PATCH v5 1/5] branch: move --set-upstream-to behavior to dwim_and_setup_tracking() Glen Choo
2021-12-16 23:33         ` [PATCH v5 2/5] branch: make create_branch() always create a branch Glen Choo
2021-12-16 23:33         ` [PATCH v5 3/5] branch: add a dry_run parameter to create_branch() Glen Choo
2021-12-16 23:33         ` [PATCH v5 4/5] builtin/branch: clean up action-picking logic in cmd_branch() Glen Choo
2021-12-16 23:33         ` [PATCH v5 5/5] branch: add --recurse-submodules option for branch creation Glen Choo
2021-12-17  0:34         ` [PATCH v5 0/5] implement branch --recurse-submodules Junio C Hamano
2021-12-17  0:45           ` Junio C Hamano
2021-12-20 19:09             ` Glen Choo
2021-12-20 19:50               ` Junio C Hamano
2021-12-20 20:25                 ` Glen Choo
2021-12-20 23:34         ` [PATCH v6 " Glen Choo
2021-12-20 23:34           ` [PATCH v6 1/5] branch: move --set-upstream-to behavior to dwim_and_setup_tracking() Glen Choo
2022-01-11  2:09             ` Jonathan Tan
2022-01-11 17:29               ` Glen Choo
2022-01-11 20:03                 ` Jonathan Tan
2021-12-20 23:34           ` [PATCH v6 2/5] branch: make create_branch() always create a branch Glen Choo
2022-01-11  2:19             ` Jonathan Tan
2022-01-11 17:51               ` Glen Choo
2021-12-20 23:34           ` [PATCH v6 3/5] branch: add a dry_run parameter to create_branch() Glen Choo
2021-12-20 23:34           ` [PATCH v6 4/5] builtin/branch: clean up action-picking logic in cmd_branch() Glen Choo
2021-12-20 23:34           ` [PATCH v6 5/5] branch: add --recurse-submodules option for branch creation Glen Choo
2021-12-26  4:09             ` Junio C Hamano
2022-01-11  3:28             ` Jonathan Tan
2022-01-11 18:11               ` Glen Choo
2022-01-11 20:15                 ` Jonathan Tan
2022-01-11 23:22                   ` Glen Choo
2021-12-20 23:36           ` [PATCH v6 0/5] implement branch --recurse-submodules Glen Choo
2021-12-21  1:07           ` Junio C Hamano
2021-12-21 17:51             ` Glen Choo
2022-01-24 20:44           ` [PATCH v7 0/6] " Glen Choo
2022-01-24 20:44             ` [PATCH v7 1/6] branch: move --set-upstream-to behavior to dwim_and_setup_tracking() Glen Choo
2022-01-24 20:44             ` [PATCH v7 2/6] branch: make create_branch() always create a branch Glen Choo
2022-01-24 20:44             ` [PATCH v7 3/6] branch: add a dry_run parameter to create_branch() Glen Choo
2022-01-24 20:44             ` [PATCH v7 4/6] builtin/branch: consolidate action-picking logic in cmd_branch() Glen Choo
2022-01-24 20:44             ` [PATCH v7 5/6] branch: add --recurse-submodules option for branch creation Glen Choo
2022-01-27 20:29               ` Jonathan Tan
2022-01-27 21:32                 ` Glen Choo
2022-01-27 22:42                   ` Glen Choo
2022-01-24 20:44             ` [PATCH v7 6/6] branch.c: use 'goto cleanup' in setup_tracking() to fix memory leaks Glen Choo
2022-01-27 22:15               ` Junio C Hamano
2022-01-28 19:44                 ` Glen Choo
2022-01-29  0:04             ` [PATCH v8 0/6] implement branch --recurse-submodules Glen Choo
2022-01-29  0:04               ` [PATCH v8 1/6] branch: move --set-upstream-to behavior to dwim_and_setup_tracking() Glen Choo
2022-01-29  0:04               ` [PATCH v8 2/6] branch: make create_branch() always create a branch Glen Choo
2022-02-01 22:20                 ` Junio C Hamano
2022-01-29  0:04               ` [PATCH v8 3/6] branch: add a dry_run parameter to create_branch() Glen Choo
2022-01-29  0:04               ` [PATCH v8 4/6] builtin/branch: consolidate action-picking logic in cmd_branch() Glen Choo
2022-01-29  0:04               ` [PATCH v8 5/6] branch: add --recurse-submodules option for branch creation Glen Choo
2022-02-04  1:10                 ` Glen Choo
2022-02-04 16:15                   ` Junio C Hamano
2022-02-04 18:10                     ` Glen Choo
2022-01-29  0:04               ` [PATCH v8 6/6] branch.c: use 'goto cleanup' in setup_tracking() to fix memory leaks Glen Choo
2022-02-01 17:43               ` [PATCH v8 0/6] implement branch --recurse-submodules Jonathan Tan

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=20211123231035.3607109-1-jonathantanmy@google.com \
    --to=jonathantanmy@google.com \
    --cc=chooglen@google.com \
    --cc=emilyshaffer@google.com \
    --cc=git@vger.kernel.org \
    --cc=steadmon@google.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).