zsh Prompt Configuration

.zsh-aliases

# Rails
alias be="bundle exec"
alias ber="bundle exec rails"

# git
alias gcm="git commit -m"
alias gp="git push"
alias gst="git status"
alias gco="git checkout"

# Rubocop
alias cop="git ls-files -m | xargs ls -1 2>/dev/null | grep '\.rb$' | xargs bundle exec rubocop"

.zshrc

# Find and set branch name var if in git repository.
function git_branch_name()
{
  branch=$(git symbolic-ref HEAD 2> /dev/null | awk 'BEGIN{FS="/"} {print $NF}')
  if [[ $branch == "" ]];
  then
    :
  else
    echo '- (%B%F{009}'$branch'%f%b) '
  fi
}

# Enable substitution in the prompt.
setopt prompt_subst

# Config for prompt. PS1 synonym.
prompt='%B%F{078}%2/%f%b $(git_branch_name)/> '

This adds the git branch (if applicable) as well as changes the colors of the prompt