Re: Can I fetch an arbitrary commit by sha1?

> I always though during fetch I have to specify a refspec and that a
> sha1 would not be accepted as a ref. Firing some like 'git fetch
> origin <sha1>' should be forbidden. But in fact I see that such a
> fetch command succeeds if you already have that object in your local
> repo.
>
> My question: is it allowed to fetch sha1's? Shouldn't fetch fail if you try it?
>
> See here:
>
>> git clone -q https://github.com/chalstrick/dondalfi.git
>> cd dondalfi
>> git ls-remote
> From https://github.com/chalstrick/dondalfi.git
> ce08dcc41104383f3cca2b95bd41e9054a957f5b HEAD
> af00f4c39bcc8dc29ed8f59a47066d5993c279e4 refs/foo/b1
> ...
>> git show af00f4c39bcc8dc29ed8f59a47066d5993c279e4
> fatal: bad object af00f4c39bcc8dc29ed8f59a47066d5993c279e4
>> git fetch origin af00f4c39bcc8dc29ed8f59a47066d5993c279e4
> error: no such remote ref af00f4c39bcc8dc29ed8f59a47066d5993c279e4
>> git fetch origin refs/foo/b1
> remote: Counting objects: 3, done.
> remote: Compressing objects: 100% (2/2), done.
> remote: Total 3 (delta 0), reused 0 (delta 0)
> Unpacking objects: 100% (3/3), done.
> From https://github.com/chalstrick/dondalfi
>  * branch            refs/foo/b1 -> FETCH_HEAD
>> git fetch origin af00f4c39bcc8dc29ed8f59a47066d5993c279e4
> From https://github.com/chalstrick/dondalfi
>  * branch            af00f4c39bcc8dc29ed8f59a47066d5993c279e4 -> FETCH_HEAD