🧭 bearings

A fast, clean, super-customisable shell prompt.

• Supports zsh, bash, fish, and more.
• Easily write your own modules using any language.
• Simple configuration with YAML - works out of the box with a sensible default configuration too.

Examples Gallery

	Default
	Half Life
	Traditional
	Fire
	Ukraine
	Pirate
	Wasteland
	Hive

Feel free to PR your own screenshots onto this list!

Installation

You can download the latest binaries here. Make sure you chmod +x the binary and place it somewhere in your PATH. Then follow the instructions for your shell below.

It is recommended to install font(s) which include powerline characters, especially nerd-fonts.

Configuration

Automatic (recommended)

You can automatically configure your shell by running bearings install. This will modify your shell configuration files in order to set bearings as your PS1 generator. For advanced configurations (e.g. templated dotfiles), you should use the manual methods below. It's always a good idea to back up your config files first!

If you'd like to install bearings to a shell other than the one you're using, you can specify it with the -s/--shell flag, e.g. bearings install -s fish.

ZSH

#bearings-auto:start
function preexec() {
  if [[ $OSTYPE == 'darwin'* ]]; then
    btimer=$(($(date +%s)*1000))
  else
    btimer=$(($(date +%s%N)/1000000))
  fi
}
function configure_bearings() {
    last=$?
    elapsed=0
    if [ $btimer ]; then
      if [[ $OSTYPE == 'darwin'* ]]; then
        now=$(($(date +%s)*1000))
      else
        now=$(($(date +%s%N)/1000000))
      fi
      elapsed=$(($now-$btimer))
      unset btimer
    fi
    PROMPT="$(bearings prompt -s zsh -e ${last} -d ${elapsed} -j $(jobs | wc -l))"
}
[ ! "$TERM" = "linux" ] && precmd_functions+=(configure_bearings)
#bearings-auto:end

Bash

#bearings-auto:start
if [[ $OSTYPE == 'darwin'* ]]; then
    PS0='$(echo "$(($(date +%s)*1000))" > /tmp/bearings.$$)';
else
    PS0='$(echo "$(($(date +%s%N)/1000000))" > /tmp/bearings.$$)';
fi
bearings_prompt() { 
    if [[ $OSTYPE == 'darwin'* ]]; then
        NOW=$(($(date +%s)*1000))
    else
        NOW=$(($(date +%s%N)/1000000))
    fi
    START=$NOW
    [[ -f /tmp/bearings.$$ ]] && START=$(cat /tmp/bearings.$$) && rm /tmp/bearings.$$
    DURATION=$(($NOW - $START));
    export PS1=$(bearings prompt -s bash -e $? -d $DURATION -j $(jobs -p | wc -l)); 
}
[[ ! "$TERM" = "linux" ]] && export PROMPT_COMMAND=bearings_prompt
#bearings-auto:end

Fish

#bearings-auto:start
function fish_prompt
    bearings prompt -s fish -e $status -d $CMD_DURATION -j (count (jobs -p))
end
#bearings-auto:end

Customisation

The config file is read from ~/.config/bearings/config.yml. You can create a default config file by running bearings prompt for the first time.

For completeness, here is the default config file:

padding: 1
end: 
divider: 
fg: white
bg: black
lines_above: 1
modules:
- type: exitcode
  failure_bg: '#bb4444'
  failure_fg: '#ffffff'
  show_success: true
  success_bg: '#000000'
  success_fg: '#ffffff'
  success_output: 
- type: duration
  bg: '#ffffff'
  fg: '#334488'
  threshold: 3s
- type: cwd
  bg: '#334488'
  fg: '#aaaaaa'
  label:  %s
  max_depth: 3
- type: git
  bg: '#393939'
  fg: '#777777'

You can find example configurations with screenshots for each in the examples directory.

Colours can be specified in hexadecimal, e.g. #ffffff. You can also refer to your terminal colour scheme colours using default (for default fg/bg), red, green, yellow, blue, magenta, cyan, white, black, lightred, lightgreen, lightyellow, lightblue, lightmagenta, lightcyan, lightwhite, lightblack

All modules support the following options:

Available Modules

Current Working Directory (cwd)

Show the current working directory.

Exit Code (exitcode)

Show the exit code of the previous command. By default will only show when the command fails, but can also show a success icon/message.

Git Overview (git)

Show an overview of the current git status. Displays the branch name, a set of possible icons, and the number of commits ahead/behind of the base branch.

Command (command)

Run a shell command and use the combined output streams as the module output.

Duration

Shows the duration of the previous shell command. Can be configured to only show duration when over a certain threshold.

Jobs

Shows the number of background jobs (if > 0).

Hostname (hostname)

Show the current hostname.

Languages

Show icons for discovered languages/technologies in the current directory.

New line (newline)

Output a single new line. Before/after padding values default to 0 for convenience.

Text (text)

Output the specified text.

Username (username)

Show the current username.