Use shallow clone to improve performance when cloning huge repos

[sorenlouv]

Cloning a big repository like Kibana can be very slow and take several minutes. To improve this it might make sense to shallow clone the repository

git clone https://github.com/elastic/kibana.git --depth=100

This will only fetch the most recent commit from the default branch and is thus much faster than cloning the entire history for all branches.

git fetch --update-head-ok origin 7.x:7.x --depth=1

[ankush]

Another option would be using the existing repository. E.g. wherever you're making a copy first do git clone /home/user/folder.. and then you can change the origin. This way it's much faster to clone.

[sorenlouv]

@ankush that's a great idea too 👍