Re: git checkout -t -B

Nguyen Thai Ngoc Duy [off-list ref] writes:

On Mon, Aug 27, 2012 at 1:38 AM, Junio C Hamano [off-list ref] wrote:

quoted

乙酸鋰 [off-list ref] writes:

quoted

git checkout -t -B origin/abcde
works

but
git checkout -B -t origin/abcde
does not.

Could you document the order of parameters or fix the behaviour?

It is crystal clear that -b/-B/--orphan must be followed by the name
of the branch you are creating from the SYNOPSIS section of the
documentation.

Yet it's not very clear from the error message:

    fatal: git checkout: updating paths is incompatible with switching branches.
    Did you intend to checkout 'origin/abcde' which can not be
resolved as commit?

I wonder if we should reject -t as a value of -[Bb] by adding new
parseopt flag to reject values starting with '-'.

You should be able to cope with other invalid branch names in the
same codepath, but your approach would not help at all if the user
said "git checkout -B q..f origin/abcde".  Futzing with parseopt is
not a reasonable answer to this one.

Ideally you would want

	fatal: "-t" is not an acceptable name for a branch

in this case; if it is cumbersome to arrange, at the very least, 

	updating paths is incompatible with checking out the branch "-t".

would be clearer.