Pat's theme but minus the time, home as ~ and on one line (and particularly hardcoded to my setup tsk tsk)

josh.zsh-theme

grey='\e[0;90m'

ZSH_THEME_GIT_PROMPT_PREFIX="%{$grey%}("
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_DIRTY="%{$grey%}) %{$fg[yellow]%}✗%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_CLEAN="%{$grey%})"

function pat_prompt {
  (( spare_width = ${COLUMNS} ))
  prompt=" "

  branch=$(current_branch)
  ruby_version=$(rvm_prompt_info)
  path_size=${#PWD}
  branch_size=${#branch}
  ruby_size=${#ruby_version}
  
  if [[ ${#branch} -eq 0 ]]
    then (( ruby_size = ruby_size + 1 ))
  else
    (( branch_size = branch_size + 5 ))
  fi
  
  (( spare_width = ${spare_width} - (${path_size} + ${branch_size} + ${ruby_size}) - 2 ))

  while [ ${#prompt} -lt $spare_width ]; do
    prompt=" $prompt"
  done
  
  prompt="%F{green}%~$prompt%F{red}$(rvm_prompt_info)%{$reset_color%} $(git_prompt_info)"
  
  echo $prompt
}

setopt prompt_subst

PROMPT='
%n@%m $(pat_prompt)
%(?,%F{green},%F{red})⚡$reset_color '