To get a prompt which indicates Git-branch in Zsh

Question

I run the following codes separately as my prompt unsuccessfully in .zshrc. This suggests me that apparently I do not have a program called __git_ps1. It is not in MacPorts.

Answer 1

If all your prompt looks fine but it does not work, e.g:

function git_branch(){                                                                                                                 
    ref=$(git symbolic-ref --short --quiet HEAD 2>/dev/null)        
    if [ -n "${ref}" ]; then                                                    
        echo "(""$ref"")"                                                       
    fi                                                                          
}                                                                               
                                                                                
setopt PROMPT_SUBST                                                             

PROMPT="%{$fg[red]%}%n%{$reset_color%}@%{$fg[blue]%}%m:%{$fg[yellow]%}%1~%{$reset_color%} %{%F{green}%}$(git_branch)%{%F{none}%}$ "

The PROMPT must set to a string quoted using single quotes instead of double quotes.

PROMPT='%{$fg[red]%}%n%{$reset_color%}@%{$fg[blue]%}%m:%{$fg[yellow]%}%1~%{$reset_color%} %{%F{green}%}$(git_branch)%{%F{none}%}$ '

Answer 2

A lot of these solutions seemed slow for me when mashing the return key, so here's an option that is basic and speedy:

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

setopt PROMPT_SUBST
PROMPT='%9c%{%F{green}%}$(parse_git_branch)%{%F{none}%} $ '

You'll get a prompt that looks like this: ~/dev/project (feature-branch) $

Answer 3

__git_ps1 is from git-completion.bash. In zsh you probably have to provide your own function to determine the current directories git branch. There are quite a few blog posts about a git prompt for zsh.

You just need:

• a function to provide the branch name
• enable prompt (command) substitution
• add the function to your prompt

For example

git_prompt() {
 ref=$(git symbolic-ref HEAD | cut -d'/' -f3)
 echo $ref
}
setopt prompt_subst
PS1=$(git_prompt)%#
autoload -U promptinit
promptinit

Update: use the zsh vcs_info module instead of git_prompt()

setopt prompt_subst
autoload -Uz vcs_info
zstyle ':vcs_info:*' actionformats \
    '%F{5}(%f%s%F{5})%F{3}-%F{5}[%F{2}%b%F{3}|%F{1}%a%F{5}]%f '
zstyle ':vcs_info:*' formats       \
    '%F{5}(%f%s%F{5})%F{3}-%F{5}[%F{2}%b%F{5}]%f '
zstyle ':vcs_info:(sv[nk]|bzr):*' branchformat '%b%F{1}:%F{3}%r'

zstyle ':vcs_info:*' enable git cvs svn

# or use pre_cmd, see man zshcontrib
vcs_info_wrapper() {
  vcs_info
  if [ -n "$vcs_info_msg_0_" ]; then
    echo "%{$fg[grey]%}${vcs_info_msg_0_}%{$reset_color%}$del"
  fi
}
RPROMPT=$'$(vcs_info_wrapper)'