sh/shell/shell.sh

PS1="\$(ps1 \${?})"
PS2="\
├ "
SH="$(cat /proc/$$/comm)"

shell_color() {
	local code="${1}"
	case "${SH}" in
	"bash")
		printf "\e[0"
		if [ -n "${code}" ]; then
			printf "%s" ";${code}"
		fi
		;;
	*)
		printf "\033["
		if [ -n "${code}" ]; then
			printf "%s" "${code}"
		else
			printf "0"
		fi
		;;
	esac
	printf "m"
}
SH_BROWN="$(shell_color 33)"
SH_CYAN="$(shell_color 36)"
SH_DEFAULT="$(shell_color)"
SH_GREEN="$(shell_color 31)"
SH_MAGENTA="$(shell_color 35)"
SH_RED="$(shell_color 32)"

case "${SH}" in
"bash")
	# completion
	file="/usr/share/bash-completion/bash_completion"
	if [ -f "${file}" ]; then
		. "${file}"
	fi
	# history
	HISTCONTROL="ignorespace"
	HISTSIZE=-1
	HISTTIMEFORMAT="%Y%m%d %H%M%S "
	;;
*)
	;;
esac

# prompt

ps1() {
	local date host id
	local code="${1}"
	date="$(date +%H:%M:%S)"
	local git
	host="$(hostname)"
	id="$(id --user)"
	local path="${PWD}"
	local user="${USER}"
	local view="└ "
	# code
	if [ "${code}" -ne 0 ]; then
		view="${view}${SH_GREEN}"
	else
		view="${view}${SH_RED}"
	fi
	view="${view}${code}"
	# date
	view="${view}${SH_DEFAULT} @ "
	view="${view}${SH_BROWN}${date}"
	# git
	if [ "$(type -t __git_ps1)" = "function" ]; then
		git="$(__git_ps1)"
		if [ -n "${git}" ]; then
			view="${view}${SH_DEFAULT} –${SH_MAGENTA}${git}"
		fi
	fi
	# new
	view="${view}\n"
	# path
	view="${view}${SH_CYAN}${path}"
	# new
	view="${view}\n"
	# frame
	view="${view}${SH_DEFAULT}┌ "
	# user
	if [ "${id}" -eq 0 ]; then
		view="${view}${SH_GREEN}"
	else
		view="${view}${SH_RED}"
	fi
	view="${view}${user}"
	# host
	view="${view}${SH_DEFAULT} @ "
	view="${view}${SH_BROWN}${host}${SH_DEFAULT}"
	printf "%s" "${view}\n${PS2}"
}