Subject: Re: [RFC/PATCH 2/2] branch: allow -f with -m and -d

From: Junio C Hamano <[email-masked]>
Date: Thu, 04 Dec 2014 11:13:31 -0800

Michael J Gruber <[email-masked]> writes:

> -f/--force is the standard way to force an action, and is used by branch
> for the recreation of existing branches, but not for deleting unmerged
> branches nor for renaming to an existing branch.
>
> Make "-m -f" equivalent to "-M" and "-d -f" equivalent to" -D", i.e.
> allow -f/--force to be used with -m/-d also.

I like that goal.  And I agree with your s/force_create/force/g
remark on the cover, too.

> Signed-off-by: Michael J Gruber <[email-masked]>
> ---
>  builtin/branch.c  | 9 +++++++--
>  t/t3200-branch.sh | 5 +++++
>  2 files changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/builtin/branch.c b/builtin/branch.c
> index 3b79c50..8ea04d7 100644
> --- a/builtin/branch.c
> +++ b/builtin/branch.c
> @@ -848,7 +848,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
>  		OPT_BOOL('l', "create-reflog", &reflog, N_("create the branch's reflog")),
>  		OPT_BOOL(0, "edit-description", &edit_description,
>  			 N_("edit the description for the branch")),
> -		OPT__FORCE(&force_create, N_("force creation (when already exists)")),
> +		OPT__FORCE(&force_create, N_("force creation, move/rename, deletion")),
>  		{
>  			OPTION_CALLBACK, 0, "no-merged", &merge_filter_ref,
>  			N_("commit"), N_("print only not merged branches"),
> @@ -891,7 +891,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
>  	if (with_commit || merge_filter != NO_FILTER)
>  		list = 1;
>  
> -	if (!!delete + !!rename + !!force_create + !!new_upstream +
> +	if (!!delete + !!rename + !!new_upstream +

This puzzled me but earlier -f implied creation and no other mode
(hence it was an error to give it together with delete and other
modes), but now -f is merely a "do forcibly whatever mode of
operation other option determines" that does not conflict.

What should "-f -u" and "-f -l" do, then, though?

>  	    list + unset_upstream > 1)
>  		usage_with_options(builtin_branch_usage, options);
>  
> @@ -904,6 +904,11 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
>  		colopts = 0;
>  	}
>  
> +	if (force_create) {
> +		delete *= 2;
> +		rename *= 2;
> +	}
> +
>  	if (delete) {
>  		if (!argc)
>  			die(_("branch name required"));
> diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
> index 0b3b8f5..ddea498 100755
> --- a/t/t3200-branch.sh
> +++ b/t/t3200-branch.sh
> @@ -106,6 +106,11 @@ test_expect_success 'git branch -M o/q o/p should work when o/p exists' '
>  	git branch -M o/q o/p
>  '
>  
> +test_expect_success 'git branch -m -f o/q o/p should work when o/p exists' '
> +	git branch o/q &&
> +	git branch -m -f o/q o/p
> +'
> +
>  test_expect_success 'git branch -m q r/q should fail when r exists' '
>  	git branch q &&
>  	git branch r &&