mac os zsh git-prompt.sh cannot get colors to work

Question

I copied git-prompt.sh (https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh) to ~/.git-prompt.sh

Then in my .zsrhc I have

source ~/.git-prompt.sh
setopt PROMPT_SUBST ; PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ '

The branch shows but it doesn't show color.

Answer 1

Coloring is enabled in line 557:

# NO color option unless in PROMPT_COMMAND mode
if [ $pcmode = yes ] && [ -n "${GIT_PS1_SHOWCOLORHINTS-}" ]; then
    __git_ps1_colorize_gitstring
fi

You can either get rid of the whole if condition and just leave __git_ps1_colorize_gitstring or enable precmd which is ZSH equivalent for PROMPT_COMMAND and what pcmode stands for here and enable GIT_PS1_SHOWCOLORHINTS:

$ source ~/.git-prompt.sh
$ GIT_PS1_SHOWCOLORHINTS=true
$ precmd () { __git_ps1 "%n" ":%~$ " "|%s" }