Re: DWIM "git checkout frotz" to "git checkout -b frotz origin/frotz"

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Clemens Buchacher <drizzd@xxxxxx> writes:

> Hi,
>
> Peter and I just stumbled on the following interpretations of the
> checkout command.
>
>  git checkout origin/frotz      -> detaches HEAD
>  git checkout -t origin/frotz   -> git checkout -b frotz origin/frotz
>  git checkout frotz             -> git checkout -b frotz origin/frotz
>  git checkout -t frotz          -> fatal: Missing branch name
>
> I was surprised by the third one, which I was expecting to fail.
> Apparently it's a DWIM feature introduced in commit 70c9ac2f. I
> doubt that is what the user was trying to do if they ran that
> command. If anything, this behavior will serve to confuse them.

As already mentionned, it's obviously a bit late to revert the commit
which itroduced this DWIM. I tend to agree that this is confusing, but
still, this is very often what the user actually wanted. The original
patch was to sugest the user the appropriate command, and I find the
motivating example rather convincing:

http://thread.gmane.org/gmane.comp.version-control.git/129587

$ git clone git://git.kernel.org/pub/scm/git/git.git
$ cd git
$ git checkout next
error: pathspec 'next' did not match any file(s) known to git.
To create a local branch from the same named remote branch, use
  git checkout -b next origin/next

The newbie does not immediately understand the difference between
local and remote branches, he's been told about the branch "next", and
wants to check it out.

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