About

After having used prompt pure for about a year, I felt that a two-line prompt was not for me. Also not utilizing the right side of the terminal seemed a missed opportunity. Still there is much to like: the elapsed time of a process, the coloring of the prompt if the exit code of the process isn't 0, git integration. So I took "pure", mixed in my ideas of what a prompt should look like and came up with "lean" - a 1 line prompt that stays out of your face.

When lean starts, only 2 characters show on the screen '%' on the left and '~' on the right.

So lean is an evolution of pure, with the following changes:

Defaults to a very sparse setup, only showing information you need at the moment.
Comes with the perfect prompt character. Author went through the entire ASCII range to find it (and found it pretty quickly!)
Never displays your username (assuming you know who you are).
When tmux is active it shows a yellow 't' (I disabled the tmux bar, so this is some visual indication that tmux is active). If you don't want this indicator, you can always set PROMPT_LEAN_TMUX="" prior to loading this plugin (or prior to sourcing zgen, etc.).
Show remote host if logged in through SSH.
All in one line, most stuff in the right prompt, leaving the left prompt nice and clean
Shows background jobs (in the left prompt)
Show (dirty) git repos (can be disabled by setting PROMPT_LEAN_VCS to 0). The branch name is truncated to 20 characters.
Shortens path if needed (longer then 70% of your screen). Two methods are provided: 'truncate' and 'shrink' (fish-style working directory). Set PROMPT_LEAN_ABBR_METHOD to choose the one you like the most (default is 'truncate'). Set PROMPT_LEAN_PWD to 0 to disable showing the path altogether.
Uses PROMPT_LEAN_LEFT and PROMPT_LEAN_RIGHT to allow customization of the left and/or right side of the prompt.
For a configurable insert-mode indicator, set the PROMPT_LEAN_VIMODE and PROMPT_LEAN_VIMODE_FORMAT variables. PROMPT_LEAN_VIMODE_FORMAT defaults to "%F{red}[NORMAL]%f"
Configurable colors to match your preferred scheme, by setting PROMPT_LEAN_COLOR1 and PROMPT_LEAN_COLOR2
Use PROMPT_LEAN_NOTITLE to customize when the title should not be displayed. Useful for terminals that can not show title properly.
Use PROMPT_LEAN_VCS and PROMPT_LEAN_PWD to disable showing VCS info or the current working directory.

Installation

zgen

If you use zgen you can add the following to your ~/.zshrc:

zgen load miekg/lean

and force reload with zgen reset && source ~/.zshrc.

Note you must have the option PROMPT_SUBST set, see zshoptions(1).

prezto

If you use prezto you should do the following:

cd $ZPREZTODIR && git clone --recurse-submodules https://github.com/belak/prezto-contrib contrib

Then in ~/.zpreztorc add contrib-prompt to module load list and select lean as a theme:

zstyle ':prezto:load' pmodule \
  ... \
  'contrib-prompt' \
  'prompt' \
  ...

zstyle ':prezto:module:prompt' theme 'lean'

PROMPT_LEAN_LEFT and PROMPT_LEAN_RIGHT should be customized in ~/.zshrc. The rest variables should be customized in ~/.zshenv.

Development

If you make any changes please run make test to ensure the (little) test suite is succesfull.