Using github with multiple accounts
Nowadays having a github account is quite convenient (if not mandatory for some). It’s a great way to show what your skills are to potential employers or future clients. The only problem is that when you finally got hired by this dream company who found you on Github, you realize that they use Github too. In that case you might wonder if it’s a good idea to use your personnal account.
I decided to open a new account for this purpose. And here is my personnal recipe (tutorial) on how to use both accounts on one computer.
Disclaimer : I use MacOS X and Linux, and I don’t have a clue how it could work for windows.
I’ll assume here you already have keys and their public parts and they are both registered on your github accounts. Let’s say, we have the following in our ~/.ssh folder :
config id_rsa_alice id_rsa_alice.pub id_rsa_bob id_rsa_bob.pub
Now let’s edit the config file. We are adding some url specific configuration :
Host alice.github.com Hostname github.com User git IdentityFile ~/.ssh/id_rsa_alice Host bob.github.com Hostname github.com User git IdentityFile ~/.ssh/id_rsa_bob
The lines above actually create an automatic redirection to the respective account on github when using either bob.github.com or alice.github.com.
For example, when you want to clone a repository with the “Bob” account, instead of using:
git clone email@example.com:bob/bobsproject.git
You should use :
git clone firstname.lastname@example.org:bob/bobsproject.git
The same way, when configuring an origin for an “Alice” project, it be should set up this way:
git remote add origin email@example.com:alice/p1.git
But there is a trick (or a bug if you are a glass half empty person), and the person who will commit will be the one configure in the git configuration.
There are two ways for configuring git : either globally or project specific. And because we use two certificates, it has to be project specific. To configure Alice in a git project you have to type the following commands, go to the project folder and type :
$ git config user.name "Alice In Wonderland" $ git config user.email "firstname.lastname@example.org"
For more information, check the git book
Well here you are, you have everything you need to know to use multiple github accounts. Please leave a comment, if you find any mistakes or you come up with a better solution.
Update from Legion comment on HackerNews
In the .ssh/config file : it is not mandatory to use FQDN pattern for ssh names, this means we could have used aliceGH instead of alice.github.com
The same way, we specify the user in the configuration so when configuring the origin of a git repository, we could simply use :
git clone bob.github.com:bob/bobsproject.git
or if we add the origin after :
git remote add origin alice.github.com:alice/p1.git
and last but not least the .git part is useless, and we can use :
git remote add origin alice.github.com:alice/p1