Using Github with multiple accounts on a single computer

https://til.marcuse.info/git/github-with-multiple-accounts.html

I have two github accounts, one personal and one for work. I like to keep my work account clean, so if I need to patch an upstream project, I use my personal account.

First, setup a second SSH key

ssh-keygen -t rsa -b 4096 -f ~/.ssh/github-mypersonalgh

Add the github-mypersonalgh.pub to Github (in Settings/SSH and GPG keys)

Add some magic to your .ssh/config file:

Host github.com
  User git
  IdentityFile ~/.ssh/id_rsa

Host github.com-mypersonalgh
  HostName github.com
  User git
  IdentityFile ~/.ssh/github-mypersonalgh

Then clone with a special remote url:

git clone github.com-mypersonalgh:mypersonalgh/project.git

Finally, inside the project, set the local config

git config user.name "My Name"
git config user.email "[email protected]"

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