Display the root directory of a git project

[ebouchut]

Here is how your scripts may discover what is the root directory of your git project using the git command.
Say you are in a directory beneath the git project named learn-git.

cd ~/dev
git clone git@github.com:ebouchut/learn-git.git

cd learn-git
cd img

pwd
# => /Users/ebouchut/dev/learn-git/img

# ~~~ Show the **absolute** path of the git project we are in we are in
git rev-parse --show-toplevel
# => /Users/ebouchut/dev/learn-git

# ~~~ Show the  path of the git project we are in **relative** to the current directory
git rev-parse --show-cdup
# => ..

IMPORTANT: For this shell command to work you must launch it from within a clone of your git repository.

In the above example, I cloned this repository and cd into it then cd into the img folder.
I'm now in /Users/ebouchut/dev/learn-git/img.
Both variants of this command returns the git project's "root" directory:

• the first one gives the absolute path
  /Users/ebouchut/dev/learn-git
• the second one the path relative to the current directory you are launching the command from:
  ..