Is there any way to display github user name in prompt

Question

Sometimes I have to work with multiple Github accounts. Different email and name. And what happens all the time is I accidentally commit with wrong user and everything this messes up everything (scenario is both the users have access to that repo but one user is wrong). So to avoid this I want to display github user email in prompt.

export PS1=$(git config user.email)

Above bashrc entry works but it doesn't update itself when I cd to a Github repo with different github email and username setup.

I am on mac.

Answer 1

Rather, set it as

PROMPT_COMMAND='PS1=$(git config user.email)'

Example

PROMPT_COMMAND
    If set, the value is executed as a command prior to issuing each primary 
    prompt. 

bash(1)