Add Git Branch Name to Terminal Prompt (MacOS Catalina zsh)

terminal-prompt-git-branch-zsh.md

# --- GIT BRANCH PROMPT ---

function git_branch_name()
{
  branch=$(git symbolic-ref HEAD 2> /dev/null | awk 'BEGIN{FS="/"} {print $NF}')
  if [[ $branch == "" ]];
  then
    :
  else
    echo '- ('$branch')'
  fi
}

# Enable substitution in the prompt.
setopt prompt_subst

COLOR_DEF=$'%f'
COLOR_DIR=$'%F{197}'
COLOR_GIT=$'%F{39}'

# Config for prompt. PS1 synonym.
prompt='${COLOR_DIR}%2/ ${COLOR_GIT}$(git_branch_name)${COLOR_DEF} $ '

# --- GIT BRANCH PROMPT ---