Re: git -C has unexpected behaviour

From: Felix Nairz <felix.nairz@gmail.com>
Date: Nov 7, 2016, 07:26 UTC
Message-ID: <CADJspf+zqj2hHjD85dvt8Y4HKPViubvTzybbTq5mJDGCh2q1UQ@mail.gmail.com>
In-Reply-To: <alpine.DEB.2.20.1611041719140.3108@virtualbox>

Hi guys,

thanks for the answer and the clarification.

From what you are saying I can see that this expects as designed. It's confusing in the submodule case, but I get you don't want to add extra rules which slow down performance and mess with other people at the same time.

I will look into the git-dir solution, this seems to be exactly what I need.

Thanks, Felix

On Fri, Nov 4, 2016 at 5:36 PM, Johannes Schindelin <Johannes.Schindelin@gmx.de> wrote:

Show 47 quoted lines

> Hi Felix,
>
> On Fri, 4 Nov 2016, Felix Nairz wrote:
>
>> Now, to the unexpected part, which I think is a bug:
>>
>> If the TestData folder is there, but empty (I deleted all the files),
>> then running
>>
>> git -C .\TestData reset --hard
>>
>> will NOT throw me an error but run
>>
>> git reset --hard
>>
>> on the git repository (not the submodule in the sub-directory!),
>> without warning, or error.
>
> I *think* that this is actually intended. Please note that -C is *not* a
> synonym of --git-dir. It is more of a synonym of
>
>         cd .\TestData
>         git reset --hard
>
> In other words, you probably expected -C to specify the top-level
> directory of a worktree, and you expected Git to error out when it is not.
> Instead, Git will treat -C as a directory *from where to start*; It *can*
> be a subdirectory of the top-level directory of the worktree.
>
> Please note that
>
>         git --git-dir=.\TestData\.git reset --hard
>
> will not work, though, as it mistakes the current directory for the
> top-level directory of the worktree. What you want to do is probably
>
>         git -C .\TestData --git-dir=.git reset --hard
>
> This will tell Git to change the current working directory to the
> top-level of your intended worktree, *and* state that the repository needs
> to be in .git (which can be a file containing "gitdir: <real-git-dir>",
> which is the default in submodules).
>
> If the repository is *not* found, this command will exit with a failure.
>
> Ciao,
> Johannes