PKGBUILDs/core/initscripts/functions

#
# initscripts functions
#

# width:

STAT_COL=80
if [ -t 1 ]; then
  # stty will fail when stdin isn't a terminal (but we're in this block, so stdout is)
  if [ -t 0 ]; then
    STAT_COL="$(/bin/stty size)"
    # stty gives "rows cols"; strip the rows number, we just want columns
    STAT_COL="${STAT_COL##* }"
  else
    # tput will fail at boot time if /usr/share/terminfo isn't yet mounted
    # or TERM is otherwise unrecognized
    STAT_COL="$(/bin/tput cols 2>/dev/null)"
  fi
  if [ "0$STAT_COL" -eq 0 ]; then
    # if output was 0 (serial console), set default width to 80
    USECOLOR=""
    STAT_COL=80
  fi
else
  USECOLOR=""
  STAT_COL=80
fi

if [ -t 1 ]; then
  STAT_COL=$(/bin/stty size)
  # strip the rows number, we just want columns
  STAT_COL=${STAT_COL##* }
  if [ "$STAT_COL" = "0" ]; then
    # if output was 0 (serial console), set default width to 80
    STAT_COL=80
  fi
fi
# we use 13 characters for our own stuff
STAT_COL=$(($STAT_COL - 13))

# disable colors on broken terminals
TERM_COLORS="$(/bin/tput colors 2>/dev/null)"
if [ $? = 3 ]; then
	TERM_COLORS=8
elif [ -n "${TERM_COLORS}" ]; then
	case "${TERM_COLORS}" in
		*[!0-9]*)
			USECOLOR=""
			;;
		*)
			[ "${TERM_COLORS}" -lt 8 ] && USECOLOR=""
			;;
	esac
else
	USECOLOR=""
fi
unset TERM_COLORS

# clear the TZ envvar, so daemons always respect /etc/localtime
unset TZ

# colors:
if [ "$USECOLOR" = "YES" -o "$USECOLOR" = "yes" ]; then
	C_MAIN="\033[1;37;40m"      # main text
	C_OTHER="\033[1;34;40m"     # prefix & brackets
	C_SEPARATOR="\033[1;30;40m" # separator

	C_BUSY="\033[0;36;40m"      # busy
	C_FAIL="\033[1;31;40m"      # failed
	C_DONE="\033[1;37;40m"      # completed
	C_BKGD="\033[1;35;40m"      # backgrounded

	C_H1="\033[1;37;40m"        # highlight text 1
	C_H2="\033[1;36;40m"        # highlight text 2

	C_CLEAR="\033[1;0m"
fi

if [ -t 1 ]; then
	SAVE_POSITION="\033[s"
	RESTORE_POSITION="\033[u"
	DEL_TEXT="\033[$(($STAT_COL+4))G"
else
	SAVE_POSITION=""
	RESTORE_POSITION=""
	DEL_TEXT=""
fi

# prefixes:

PREFIX_REG="::"
PREFIX_HL=" >"

# functions:

deltext() {
	printf "${DEL_TEXT}"
}

printhl() {
	printf "${C_OTHER}${PREFIX_HL} ${C_H1}${1}${C_CLEAR} \n"
}

printsep() {
	printf "\n${C_SEPARATOR}   ------------------------------\n"
}

stat_bkgd() {
	printf "${C_OTHER}${PREFIX_REG} ${C_MAIN}${1}${C_CLEAR} "
	deltext
	printf "   ${C_OTHER}[${C_BKGD}BKGD${C_OTHER}]${C_CLEAR} "
}

stat_busy() {
	printf "${C_OTHER}${PREFIX_REG} ${C_MAIN}${1}${C_CLEAR} "
	printf "${SAVE_POSITION}"
	deltext
	printf "   ${C_OTHER}[${C_BUSY}BUSY${C_OTHER}]${C_CLEAR} "
}

stat_append() {
	printf "${RESTORE_POSITION}"
	printf -- "${C_MAIN}${1}${C_CLEAR}"
	printf "${SAVE_POSITION}"
}

stat_done() {
	deltext
	printf "   ${C_OTHER}[${C_DONE}DONE${C_OTHER}]${C_CLEAR} \n"
}

stat_fail() {
	deltext
	printf "   ${C_OTHER}[${C_FAIL}FAIL${C_OTHER}]${C_CLEAR} \n"
}

stat_die() {
	retval=1
	[ "$1" = "" ] || retval=$1
	stat_fail
	exit $retval
}

status() {
	stat_busy "$1"
	shift
	$* >/dev/null 2>&1
	if [ $? -eq 0 ]; then
		stat_done
		return 0
	else
		stat_fail
		return 1
	fi
}

#  usage : in_array( $needle, $haystack )
# return : 0 - found
#          1 - not found
# Copied from makepkg
in_array() {
  local needle=$1; shift
  [ -z "$1" ] && return 1 # Not Found
  local item
  for item in "$@"; do
    local c="${item:0:1}"
    if [ "x$c" = "x@" ]; then
      item="${item:1}"
    fi
    [ "$item" = "$needle" ] && return 0 # Found
  done
  return 1 # Not Found
}

# daemons:

add_daemon() {
	[ -d /var/run/daemons ] || /bin/mkdir -p /var/run/daemons
	/bin/touch /var/run/daemons/$1
}

rm_daemon() {
	/bin/rm -f /var/run/daemons/$1
}

ck_daemon() {
	[ -f /var/run/daemons/$1 ] && return 1
	return 0
}

ck_depends() {
	for daemon in $@; do
		if ck_daemon $daemon; then
			/etc/rc.d/$daemon start
		fi
	done
}

start_daemon() {
	/etc/rc.d/$1 start
}

start_daemon_bkgd() {
	stat_bkgd "Starting $1"
	(/etc/rc.d/$1 start) &>/dev/null &
}

stop_daemon() {
	/etc/rc.d/$1 stop
}

# Status functions
status_started() {
  deltext
  echo -ne "$C_OTHER[${C_STRT}STARTED$C_OTHER]$C_CLEAR "
}

status_stopped() {
  deltext
  echo -ne "$C_OTHER[${C_STRT}STOPPED$C_OTHER]$C_CLEAR "
}

ck_status() {
  ck_daemon $1
  if [ $? -eq 1 ]; then
    status_started
  else
    status_stopped
  fi		
}


#Source additional functions at the end to allow overrides
for f in /etc/rc.d/functions.d/*; do
  if [ -e $f ]; then
    . $f
  fi
done

# End of file