Install from git may be slow when cloning huge repository

[Inndy]

• I have searched the issues of this repo and believe that this is not a duplicate.
• I have searched the documentation and believe that my question is not covered.

Feature Request

Install from git should not clone all commit history. Can we just make a shallow clone instead?

[markopy]

+1 for this.

It makes sense to just check out the branch actually needed and without all the history. This can reduce the cloning time enormously for large repositories with a lot of history.

This seem like it would be a fairly simple change with something like this added to the git invoke:

--branch <rev> --single-branch --depth 1

[Kache]

Ran into this exact issue here: #2094 (comment)

[gaborfekete-greehill]

I had a similar issue when a branch used submodules and the other not, and the non-default would have been the preferred one: #9612