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|
#!/bin/sh
### BEGIN INIT INFO
# Provides: splashy
# Required-Start: mountkernfs
# Required-Stop: $all
# Default-Start: S
# Default-Stop: 0 6
# Short-Description: A script to calculate the progress percentage for init scripts
# Description: This calculates the progress percentage
# for the scripts in /etc/rcS.d and
# /etc/rc$CURRENT_RUNLEVEL.d.
### END INIT INFO
# Author: Tim Dijkstra <newsuser@famdijkstra.org>,
# Luis Mondesi <lemsx1@gmail.com>
# Luca Capello <luca@pca.it>
#
# If called in the rc[06].d runlevels with the stop target it will start
# splashy in 'shutdown' mode. In the rcS.d runlevel it will try
# to start splashy if it didn't start yet from initramfs.
#
# When it decides to start splashy it will first calculate the
# progress percentage which will be used by the calls to splashy_update
# in the log_end_msg functions.
# This is really simple. We just count them and put them
# in alpha-numeric order. Their percentage is then just
# int( their number on the list * ( 100 / total number on list) )
#
# Of course not all packages use log_end_msg yet, but that
# doesn't matter. The packages that do, will trigger the update
# anyway. This may result in big jumps in the percentage.
# The more scripts start using it, the more granular it will become.
#
#
# This script also needs to detect if Splashy is running and if not
# start it. It's assumed that this will only be run while halt/reboot
# and at RUNLEVEL S.
#
PATH="/sbin:/bin:/usr/sbin:/usr/bin"
NAME="splashy"
DESC="Boot splash manager"
STEPS_DIR="/etc/$NAME/steps_dir"
DEBUG=0
[ -r "/etc/default/$NAME" ] && . "/etc/default/$NAME"
. /etc/sysconfig/rc
. ${rc_functions}
set -e
[ "$ENABLE" = "1" ] && log_warning_msg "To enable $NAME add 'splash' to the kernel command line. Use of ENABLE in /etc/default/$NAME is deprecated.";
check_to_enable () {
ENABLE=0
SINGLE=false
SPLASH=false
FBMODESET=false
for x in $(cat /proc/cmdline); do
case $x in
single)
SINGLE="true"
;;
splash)
SPLASH="true"
;;
nosplash)
SPLASH="false"
;;
vga=*|video=*)
FBMODESET="true"
;;
esac
done
[ "$SPLASH" = "true" -a "$FBMODESET" = "true" ] && ENABLE=1
[ "$SINGLE" = "true" ] && ENABLE=0
if [ "$ENABLE" = "0" ]; then
log_warning_msg "To enable $NAME on multiuser runlevel add 'splash' and a valid framebuffer videomode to the kernel command line"
exit 0
fi
}
calculate_steps () {
[ -f /etc/inittab ] && RLVL=`sed -n 's/id:\([2345]\):initdefault:/\1/ p' /etc/inittab`
#
# Mount a tmpfs on $STEPS_DIR
#
# on Ubuntu our Steps dir gets umounted if using /dev/shm/splashy
# we will always use $STEPS_DIR and mount a tmpfs there
SHM_OPT=
[ "${SHM_SIZE:=$TMPFS_SIZE}" ] && SHM_OPT="-osize=$SHM_SIZE"
mount -n -t tmpfs shmfs $STEPS_DIR
TMP=`mktemp -p $STEPS_DIR`
# While booting rcS will also be executed
# we only care about the scripts that actually call log_end_msg
# if not we could end up never completing our progressbar!
grep -l "Usage" ${rc_base}/rcsysinit.d/S* > $TMP 2> /dev/null || true
for ILVL in ${RLVL:=2} 0 3 4 5 6; do
# in debian rc.local runs log_end_msg conditionally. we simply skip that
grep -l "Usage" ${rc_base}/rc$ILVL.d/[KS]* 2> /dev/null | grep -v rc.local >> $TMP || true
NR=`sed -n -e '$=' $TMP`
I=1
for SCR in `cat $TMP`; do
echo "$SCR $(($I*100/$NR))"
I=$(($I+1))
done > "$STEPS_DIR/$ILVL-progress"
# Truncate $TMP file
echo -n > $TMP
done
# In the first stage of booting RUNLEVEL will be S
ln -sf "$STEPS_DIR/${RLVL:=2}-progress" "$STEPS_DIR/sysinit-progress"
rm -f $TMP
}
# Bug #400598,#401999
if [ -z "${RUNLEVEL:-}" ]; then
# we need only the current level
RUNLEVEL=`runlevel | sed 's/^. //'`
fi
case "$1" in
start)
calculate_steps $RUNLEVEL
;;
*)
N=/etc/init.d/$NAME
echo "Usage: $N {restart}" >&2
exit 1
;;
esac
exit 0
|
