So submodules...
I am currently working on improving submodules (some basic performance
improvements have been done, soon to be merged upstream, I currently
try to get parallelism working for git fetch --recurse-submodules and for
git submodule update eventually. I sent some early working patches for that,
but I am doing a whole new redesign without threads now).
On Wed, Sep 9, 2015 at 3:52 PM, Vitali Lovich <vlovich@xxxxxxxxx> wrote:
> Hi,
>
> Git submodule doesn’t have a --progress option like regular clone/fetch does. This means that it can hang a long time without output as it’s transferring data, particularly for large repositories.
For repositories with nested submodules it is impossible to estimate
the progress because you don't know how many there are.
Say you have a layout like:
A
-> B
-> C
-> D
-> E
-> F
whereas each letter is a repository and B,C,D are submodules of A and
E,F are submodules of D.
So if D is not cloned yet, it looks like A has only 3 submodules, but
in fact we need to update 5
submodules.
> This is problematic in automation scenarios where there can be upper-bounds on how long a process may run without any output (to protect against processes hanging for long periods of time without forward progress).
Maybe a better error-out-if-hanging would be better IMHO ?
Another option would be to enumerate the submodules and give the
currently estimated upper bound ?
Doh! I see what you're missing now after rereading the email closely.
You can add a --quiet option,
but --verbose or --progress just errors out, but you want that as a
possible argument for git clone
inside the git submodule update code.
Thanks,
Stefan
>
> I’m sure this has been asked for before but having this option would be really nice for automation system (like buildbot) to take advantage of. The only alternative is a hacky solution to clone locally first with the —progress option
> & then somehow set up the submodule to use the local clone as a reference.
>
> Thanks,
> Vitali--
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