🍗 Wiki

Git

Git

Git is a de facto free and open source distributed version control system.

1. Tips

1.1. --branch option to clone a working branch, not the master

I wanted to test the other contributor’s code before it get merged to the master branch.

$ git clone https://github.com/Sister-Ch1keen/rizin --branch new-feature

Do double-check before working:

$ cd rizin/

$ git branch
* new-feature

And build or test it whatever you want!

1.2. --depth option to shallow clone

Since the open source ecosystem is mature nowadays, Linux for example exceeds 1,300,000 commits. Cloning full repository with all histories can be overwhelming and a redundant task if you only want to scratch the surface.

Git supports "shallow clone" to minimize disk savings by cloning the recent history, not the full commit logs and histories.

$ time -- git clone https://github.com/torvalds/linux --depth=2
...
real 20.26
user 10.18
sys 5.74

I spend 7 minutes to get all commit histories (as known as deep clone). But it was reduced to 20 seconds when I added --depth=2 option when cloning.

$ time -- git clone https://github.com/torvalds/linux
...
Executed in  404.38 secs    fish           external
   usr time  434.10 secs  146.00 micros  434.10 secs
   sys time  117.96 secs  359.00 micros  117.96 secs

If you want to get full history of the shallow cloned git repository, use git fecth command.

git fetch --depth=100
git fetch --depth=300
# or full fetch
git fetch --unshallow