Ultimate custom Bash prompt for Arch

.bashrc

#
# ~/.bashrc
#

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

# don't put duplicate lines in the history. See bash(1) for more options
# ... or force ignoredups and ignorespace
HISTCONTROL=ignoredups:ignorespace

alias ls='ls --color=auto'
alias grep='grep --color=auto'
alias diff='diff --color=auto'
alias ip='ip -color=auto'
export LESS='-R --use-color -Dd+r$Du+b'
export MANPAGER="less -R --use-color -Dd+r -Du+b"
alias dmesg='dmesg --color=always'

# append to the history file, don't overwrite it
shopt -s histappend

# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000

# make less more friendly for non-text input files, see lesspipe(1)
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
    xterm-color) color_prompt=yes;;
esac

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
force_color_prompt=yes

if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
	# We have color support; assume it's compliant with Ecma-48
	# (ISO/IEC-6429). (Lack of such support is extremely rare, and such
	# a case would tend to support setf rather than setaf.)
	color_prompt=yes
    else
	color_prompt=
    fi
fi

export EDITOR=nano
export PAGER=less
export VISUAL=$EDITOR

# colored GCC warnings and errors
export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'

PS1='\[\e[0;38;5;34m\]\u\[\e[0;38;5;34m\]@\[\e[0;38;5;34m\]\h\[\e[0m\]:\[\e[0;38;5;33m\]\w \[\e[0m\]\$ \[\e[0m\]'

# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
    PS1="\[\e]0;\u@\h: \w\a\]$PS1"
    ;;
*)
    ;;
esac

# autocomplete sudo
#complete -cf sudo


# default
# PS1='[\u@\h \W]\$ '