Consider the following two functions:

function slow_git_prompt_info() {
  if [[ "$(command git config --get oh-my-zsh.hide-status 2>/dev/null)" != "1" ]]; then
    ref=$(command git symbolic-ref HEAD 2> /dev/null) || \
    ref=$(command git rev-parse --short HEAD 2> /dev/null) || return 0
    echo "$ZSH_THEME_GIT_PROMPT_PREFIX${ref#refs/heads/}$(parse_git_dirty)$ZSH_THEME_GIT_PROMPT_SUFFIX"


function branch_name_only_git_prompt_info() {
  ref=$(git symbolic-ref HEAD 2> /dev/null) || return

I would like to define another third function that, when called, overrides/defines the function git_prompt_info() in the main "namespace" to make it "point" to fast_git_prompt_info

E.g. something like:

# Pseudo-code:
function redefine_git_prompt_info() {
   git_prompt_info = branch_name_only_git_prompt_info

Is this at all possible with Zsh? If so, how?

  • 2
    functions[git_prompt_info]=$functions[branch_name_only_git_prompt_info] – Stéphane Chazelas Jun 1 '15 at 15:02
  • Thanks @StéphaneChazelas That works great. If you write this as an answer I will definitely accept it! – Amelio Vazquez-Reina Jun 1 '15 at 18:22

You can define a function anywhere. To chain another function, just call it with the same parameters.

redefine_git_prompt_info () {
  git_prompt_info () { branch_name_only_git_prompt_info "$@"; }

If branch_name_only_git_prompt_info is later redefined, a call to redefine_git_prompt_info will call the new definition. If you want to copy the current definition, in zsh, you can do it easily thanks to the functions array.

redefine_git_prompt_info () {

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