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Powerline style prompt for Bash and ZSH.

A Powerline like prompt for Bash/ZSH in 2 lines:

Screenshot

  • Split in 2 lines!
  • Shows date/time
  • Shows some important details about the git branch:
    • Displays the current git branch which changes background color when the branch is dirty
    • A '+' appears when untracked files are present
    • When the local branch differs from the remote, the difference in number of commits is shown along with '⇡' or '⇣' indicating whether a git push or pull is pending
  • Changes color if the last command exited with a failure code
  • If you're too deep into a directory tree, shortens the displayed path with an ellipsis
  • Shows the current Python virtualenv environment
  • It's all done in a Python script, so you could go nuts with it

Setup

  • This script uses ANSI color codes to display colors in a terminal. These are notoriously non-portable, so may not work for you out of the box, but try setting your $TERM to xterm-256color, because that works for me.

  • Patch the font you use for your terminal: see https://github.com/Lokaltog/vim-powerline/wiki/Patched-fonts

  • Clone this repository somewhere:

      git clone https://github.com/Janhouse/powerline-shell

  • Create a symlink to the python script in your home:

      ln -s <path/to/powerline-shell.py> ~/.powerline-shell.py

    If you don't want the symlink, just modify the path in the commands below

  • Now add the following to your .bashrc:

      CHROOT=`ls -di / | awk '{if ($1 != "2") print 1; else print 0;}'`
  function _update_ps1() {
      if [ "$TERM" != "linux" ] ; then
         if [ "$(uname)" == "Darwin" ]; then
            update_terminal_cwd
         fi
         PREV=$?
         EXTRA=`logname`@`hostname`
         export PS1="$(~/.powerline-shell.py ${PREV} --width ${COLUMNS} --chroot ${CHROOT} --extra ${EXTRA})"
      fi
  }

  export PROMPT_COMMAND="_update_ps1"

  • ZSH fans, add the following to your .zshrc:

      CHROOT=`ls -di / | awk '{if ($1 != "2") print 1; else print 0;}'`
  function powerline_precmd() {
      PREV=$?
      EXTRA=`logname`@`hostname`
      export PS1="$(~/.powerline-shell.py ${PREV} --width ${COLUMNS} --chroot ${CHROOT} --shell zsh --extra ${EXTRA})"
  }

  function install_powerline_precmd() {
    for s in "${precmd_functions[@]}"; do
      if [ "$s" = "powerline_precmd" ]; then
        return
      fi
    done
    precmd_functions+=(powerline_precmd)
  }
  if [ "$TERM" != "linux" ] ; then
      install_powerline_precmd
  else
      prompt walters
  fi

  • Fish users, redefine fish_prompt in ~/.config/fish/config.fish:

      function fish_prompt
      ~/.powerline-shell.py $status --width ${COLUMNS} --shell bare
  end