.bashrc

#!/usr/bin/env bash

# if not running interactively, don't do anything
[[ $- != *i* ]] && return

source "${HOME}/.profile"
source "${HOME}/.posixrc"

# don't clutter home directory
HISTFILE="${XDG_DATA_HOME}/bash/bash_history"
mkdir -p "$(dirname "${HISTFILE}")"

# auto completion
source "/usr/share/git/completion/git-completion.bash"
__git_complete dotgit __git_main
__git_complete safegit __git_main

# shell prompt
source "/usr/share/git/completion/git-prompt.sh"
__red_ps="$(tput setaf 1)"
__green_ps="$(tput setaf 2)"
__orange_ps="$(tput setaf 3)"
__blue_ps="$(tput setaf 4)"
__purple_ps="$(tput setaf 5)"
__yellow_ps="$(tput setaf 11)"
__bold_ps="$(tput bold)"
__normal_ps="$(tput sgr0)"
function __exit_ps1() {
    local EXIT="${?}"
    local EXIT_COLOR=""
    if [ "${EXIT}" = 0 ]; then
        EXIT_COLOR="${__green_ps}"
    else
        EXIT_COLOR="${__red_ps}"
    fi
    printf '\001%s\002' "${EXIT_COLOR}"
    return "${EXIT}"
}
function __hostname_ps1() {
    local EXIT="${?}"
    if [ -n "${SSH_CONNECTION}" ]; then
        printf "\001%s\002@\001%s\002%s" "${__normal_ps}" "${__purple_ps}" "${1}"
    fi
    return "${EXIT}"
}
PS1='\001${__normal_ps}\002[$(__exit_ps1)\u$(__hostname_ps1 \h) \001${__blue_ps}\002\W$(__git_ps1 " \001${__normal_ps}\002@\001${__orange_ps}\002%s")\001${__normal_ps}\002]\001${__bold_ps}\002\$\001${__normal_ps}\002 '
function __whitespace_ps2() {
    local EXIT="${?}"
    local EXTRA_SPACE="3"
    local USERNAME="${1}"
    local HOSTNAME=""
    if [ -n "${SSH_CONNECTION}" ]; then
        HOSTNAME="@${2}"
    fi
    local DIRECTORY="${3}"
    if [ "${DIRECTORY}" = "${HOME}" ]; then
        DIRECTORY="~"
    fi
    local GIT_BRANCH
    GIT_BRANCH="$(__git_ps1 " @%s")"
    local LENGTH="$(( EXTRA_SPACE + ${#USERNAME} + ${#HOSTNAME} + ${#DIRECTORY} + ${#GIT_BRANCH} ))"
    printf '%*s' "${LENGTH}" ""
    return "${EXIT}"
}
PS2='$(__whitespace_ps2 \u \h \W)\001${__yellow_ps}${__bold_ps}\002|\001${__normal_ps}\002 '

# vim input
set -o vi

if [ "${TERM}" = "linux" ]; then
    __graphical_session="$(decide "Xmonad" "i3" "TTY")"
    case $__graphical_session in
        "TTY")
            ;;
        "i3")
            startx ~/.xinitrc "i3" && exit
            ;;
        "Xmonad")
            startx ~/.xinitrc "xmonad" && exit
            ;;
    esac
fi