dotfiles/bash_prompt

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#!/usr/bin/env bash
########################################################################
# bash_prompt, from @mathiasbynens
# slightly modified
# https://github.com/mathiasbynens/dotfiles/blob/master/.bash_prompt
########################################################################
if [[ $COLORTERM = gnome-* && $TERM = xterm ]] && infocmp gnome-256color >/dev/null 2>&1; then
export TERM='gnome-256color';
elif infocmp xterm-256color >/dev/null 2>&1; then
export TERM='xterm-256color';
fi;
prompt_git() {
local s='';
local branchName='';
# Check if the current directory is in a Git repository.
if [ "$(git rev-parse --is-inside-work-tree &>/dev/null; echo "${?}")" == '0' ]; then
# check if the current directory is in .git before running git checks
if [ "$(git rev-parse --is-inside-git-dir 2> /dev/null)" == 'false' ]; then
# Ensure the index is up to date.
git update-index --really-refresh -q &>/dev/null;
# Check for uncommitted changes in the index.
# shellcheck disable=SC2091
if ! $(git diff --quiet --ignore-submodules --cached); then
s+='+';
fi;
# Check for unstaged changes.
# shellcheck disable=SC2091
if ! $(git diff-files --quiet --ignore-submodules --); then
s+='!';
fi;
# Check for untracked files.
if [ -n "$(git ls-files --others --exclude-standard)" ]; then
s+='?';
fi;
# Check for stashed files.
# shellcheck disable=SC2091
if $(git rev-parse --verify refs/stash &>/dev/null); then
s+='$';
fi;
fi;
# Get the short symbolic ref.
# If HEAD isnt a symbolic ref, get the short SHA for the latest commit
# Otherwise, just give up.
branchName="$(git symbolic-ref --quiet --short HEAD 2> /dev/null || \
git rev-parse --short HEAD 2> /dev/null || \
echo '(unknown)')";
[ -n "${s}" ] && s=" ${s}";
echo -e "${1}${branchName}${orange}${s}";
else
return;
fi;
}
# shellcheck disable=SC2034
if tput setaf 1 &> /dev/null; then
tput sgr0; # reset colors
bold=$(tput bold);
dim=$(tput setaf 8);
reset=$(tput sgr0);
# Tomorrow colors, taken from https://github.com/Slava/vim-colors-tomorrow/blob/master/colors/tomorrow.vim
black=$(tput setaf 236);
gray=$(tput setaf 242);
blue=$(tput setaf 109);
green=$(tput setaf 143);
cyan=$(tput setaf 43);
orange=$(tput setaf 173);
purple=$(tput setaf 125);
red=$(tput setaf 167);
magenta=$(tput setaf 139);
violet=$(tput setaf 139);
white=$(tput setaf 15);
yellow=$(tput setaf 136);
else
bold='';
reset="\e[0m";
black="\e[1;30m";
blue="\e[1;34m";
cyan="\e[1;36m";
green="\e[1;32m";
orange="\e[1;33m";
purple="\e[1;35m";
red="\e[1;31m";
violet="\e[1;35m";
white="\e[1;37m";
yellow="\e[1;33m";
fi;
# Highlight the user name when logged in as root.
if [[ "${USER}" == "root" ]]; then
userStyle="${red}";
else
userStyle="${gray}";
fi;
if [[ "${SSH_TTY}" ]]; then
PS1="\[\033]0;\W • \h\007\]"; # Set the terminal title
PS1+="\n";
PS1+="\[${userStyle}\]\u "; # username
PS1+="\[${orange}\]\h \[${reset}\]"; # host
else
PS1="\[\033]0;\W\007\]"; # Set the terminal title
PS1+="\n";
fi;
PS1+="\[${cyan}\]\w"; # working directory full path
PS1+="\$(prompt_git \" \[${gray}\]\")"; # Git repository details
PS1+="\n";
PS1+="\[${white}\]→ \[${reset}\]"; # `→` (and reset color)
export PS1;
PS2="\[${white}\]→ \[${reset}\]";
export PS2;