Mac OS Catalina: PS1 not updating when I change branch or directory

Question

I tried to set PS1 in the bash_profile as,

.bash_profile
#!/bin/bash

# .....

parse_git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}

parse_pwd() {
  basename $PWD
}

PS1=''$(parse_pwd)''$(parse_git_branch)' $ '

Got the expected output: <project-directory-name> (git-branch-name) $

Problem:

When I change the branch or change project then PS1 details are not updating (i.e. neither the branch name nor the project-directory-name). I had to manually run source ~/.bash_profile to see those changes in the terminal.

I googled and tried few suggestions like,

• https://stackoverflow.com/a/38429139/967638
• https://stackoverflow.com/a/5380026/967638

Not sure, but is it something to do with my bash? I am currently using zsh,

$ echo $SHELL
/bin/zsh

Answer 1

If you want to change the prompt for Zsh:

PROMPT="⚡️%{$fg[red]%} ☣︎☯︎⚰︎☤⚚♱♚☨☥☥☨♚♱⚚☤⚰︎☯︎☣︎ %{$fg[red]%}⚡%{$fg[green]%}%T⚡️%{$fg[green]%}%{$fg[yellow]%}%d%{$fg[yellow]%} ⚡️"

^This is just an example of the difference between bash and zsh when setting prompt.^

for your case check this link:

https://www.themoderncoder.com/add-git-branch-information-to-your-zsh-prompt/

or change to bash using:

chsh -s /bin/sh