Re: [PATCH 2/3] branch: suggest how to undo a --set-upstream when given one branch

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Carlos Martín Nieto <cmn@xxxxxxxx> writes:

> --- a/builtin/branch.c
> +++ b/builtin/branch.c
> @@ -864,10 +864,32 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
>  		   info and making sure new_upstream is correct */
>  		create_branch(head, branch->name, new_upstream, 0, 0, 0, quiet, BRANCH_TRACK_OVERRIDE);
>  	} else if (argc > 0 && argc <= 2) {
> +		struct branch *branch = branch_get(argv[0]);
> +		const char *old_upstream = NULL;
> +		int branch_existed = 0;
> +
>  		if (kinds != REF_LOCAL_BRANCH)
>  			die(_("-a and -r options to 'git branch' do not make sense with a branch name"));
> +
> +		/* Save what argv[0] was pointing to so we can give
> +		   the --set-upstream-to hint */

Multi-line comments are usually written in Git as

/*
 * multi-line
 * comment
 */

> +		if (branch_has_merge_config(branch))
> +		  old_upstream = shorten_unambiguous_ref(branch->merge[0]->dst, 0);

Broken indentation.

> +		if (argc == 1) {
> +			printf("If you wanted to make '%s' track '%s', do this:\n", head, argv[0]);

Could be marked for translation with _("...").

> +			if (branch_existed)
> +				printf(" $ git branch --set-upstream '%s' '%s'\n", argv[0], old_upstream);

old_upstream may be NULL at this point. I guess you want to skip this
line if old_upsteam is NULL.

The fact that I could find this bug suggests that this lacks a few new
tests too ;-).

> +			else
> +				printf(" $ git branch -d '%s'\n", argv[0]);
> +
> +			printf(" $ git branch --set-upstream-to '%s'\n", argv[0]);

For the 3 printf()s: we usually display commands without the "$", and
separate them from text with a blank line. See for example what "git
commit" says when you didn't provide authorship:

You can suppress this message by setting them explicitly:

    git config --global user.name "Your Name"
    git config --global user.email you@xxxxxxxxxxx

After doing this, you may fix the identity used for this commit with:

    git commit --amend --reset-author

(the absence of $ sign avoids the temptation to cut-and-paste it)

-- 
Matthieu Moy
http://www-verimag.imag.fr/~moy/
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