Question

Currently, this works, if I start bash from a folder already containing a git project.

PS1="${debian_chroot:+($debian_chroot)}\[$BPurple\]\u\[$BGreen\]@\[$BCyan\]\h\[$BGreen\]: \[$BBlue\]\w\[$Yellow\]`__git_ps1`\[$Green\] \$ \[$White\]"

My problem is that, if I cd into a git folder, nothing happens. And then if I start in a git repo, (where (master) does show up, if I cd to anywhere else, the (master) still shows up in my prompt.

So, the PS1 variable isn’t updating. how do I fix that?

Answer 1

Try this:

PS1='${debian_chroot:+($debian_chroot)}[$BPurple]\u[$BGreen]@[$BCyan]\h[$BGreen]: [$BBlue]\w[$Yellow]$(__git_ps1)[$Green] \$ [$White]'

I simply replaced the double quotes with single quotes, and wrapped the call to __git_ps1 in a command substitution. If that doesn’t work (I haven’t included parameter expansion in my prompt for a while), try

PS1="..."'$(__git_ps1)'"..."

where the first ‘…’ is everything prior to ‘__git_ps1’, and the second ‘…’ is everything after. Basically, three strings concatenated together, with the first and third in double quotes and the second in single quotes.