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4 changed files with 13 additions and 102 deletions

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@ -1,8 +1,4 @@
# spark-rc
spark-rc
========
A simple rc script to kickstart your system.
## depends
* Enabled sysrq or halt from suckless.org's ubase.
* /proc support.

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@ -11,12 +11,9 @@ cfg_hostname='spark'
# Uncomment and change this to yours
#cfg_timezone='Europe/Moscow'
# Early fsck, if you don't have such a step in your initrd
cfg_early_fsck=1
# Services that start with @ are executed in parallel
cfg_services+=(
'mount' 'sysctl' 'rsyslogd'
'fsck' 'mount' 'sysctl' 'rsyslogd'
'@lo.iface' '@scron' @agetty-tty{2..6}
)
@ -43,6 +40,3 @@ cfg_mounts=(
# Some temporary directories and files
cfg_tmpdirs+=( '/run/lock' '/run/lock/lvm' '/run/lvm' '/run/user' )
cfg_tmpfiles+=( '/run/utmp' )
# How long do we wait for all processes to die nicely?
cfg_killall5_timeout=30

49
rc.in
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@ -1,5 +1,4 @@
#!@BASH_PATH@
# vim: ft=zsh
# Functions
rc.rescue() { exec "${cfg_rc_rescue_shell:-"$SHELL"}"; }
@ -30,21 +29,13 @@ rc.tmpfiles() {
rc.mount() {
for fs in "${cfg_mounts[@]}"; do
echo "$fs" | while IFS=':' read device fs_type mountpoint mount_options; do
if mountpoint -q "$mountpoint"; then
if [[ "$mount_options" ]]; then
mount -o "remount,$mount_options" "$mountpoint"
fi
else
if ! [[ -d "$mountpoint" ]]; then
mkdir -p "$mountpoint"
fi
if ! [[ "$mount_options" ]]; then
mount_options='defaults'
fi
[[ "$mount_options" ]] || { mount_options='defaults'; }
mountpoint -q "$mountpoint" || {
[[ -d "$mountpoint" ]] || { mkdir -p "$mountpoint"; }
mount "$device" -n -t "$fs_type" -o "$mount_options" "$mountpoint"
fi
}
done
done
}
@ -101,10 +92,10 @@ rc.services_stop() {
rc.stop_everything() {
echo "Politely asking all processes to shut down..."
killall5 -s 15 -w "$cfg_killall5_timeout"
killall5 -15; sleep 3
echo "Killing the remaning ones..."
killall5 -s 9
killall5 -9
}
rc.unmount_everything() {
@ -118,8 +109,6 @@ rc.remount_root() {
}
rc.boot() {
(( cfg_early_fsck )) && rc.fsck
rc.mount
rc.tmpfiles
rc.hostname
@ -131,27 +120,15 @@ rc.boot() {
}
rc.halt() {
if type -P halt &>/dev/null; then
function rc.halt_poweroff { halt -p; }
function rc.halt_reboot { halt -r; }
elif (( $(</proc/sys/kernel/sysrq) )); then
function rc.halt_poweroff { echo 'o' > /proc/sysrq-trigger; }
function rc.halt_reboot { echo 'b' > /proc/sysrq-trigger; }
else
printf 'Cannot halt, please install halt from suckless.org ubase or enable sysrq.\n'
return 1
fi
case "$action" in
poweroff|shutdown) echo 'o' > /proc/sysrq-trigger;;
halt) :;;
poweroff|shutdown) rc.halt_poweroff;;
reboot|*) rc.halt_reboot;;
reboot|*) echo 'b' > /proc/sysrq-trigger;;
esac
}
rc.sync() {
echo "Syncing disks."
sync
}
rc.shutdown() {
@ -183,21 +160,11 @@ rc.timezone() {
}
}
rc.fsck() {
declare root_rw=0
touch /rc-write-test && root_rw=1
(( root_rw )) && mount -o remount,ro /
fsck -A -C -p
(( root_rw )) && mount -o remount,rw /
}
rc.main() {
source "@ETC@/rc.conf"
# Default XDG_RUNTIME_DIR for all non-system users
# rtkit:x:133:133:RealtimeKit:/proc:/sbin/nologin
# Also add one for root
cfg_tmpdirs+=( "/run/user/0:700:0:0" )
while IFS=':' read -r _ _ uid gid _; do
if (( uid >= 1000 )); then
cfg_tmpdirs+=( "/run/user/$uid:700:$uid:$gid" )

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@ -37,60 +37,14 @@ get_procs_to_kill() {
done
}
pids_exist() {
for i in "$@"; do
if [[ -d "/proc/$i" ]]; then
return 0
fi
done
return 1
}
pid_wait() {
declare counter
while pids_exist "$@"; do
if (( counter == timeout )); then
return 1
fi
sleep 1
(( counter++ ))
done
}
main() {
timeout=30
signal=15
while (( $# )); do
case $1 in
-w)
flag_wait=1
timeout=$2
shift
;;
-s)
signal=$2
shift
;;
esac
shift
done
my_tree=( $(get_my_tree) self thread-self )
all_procs=( $(get_all_procs) )
procs_to_kill=( $(get_procs_to_kill) )
kill -n "$signal" "${procs_to_kill[@]}" 2>/dev/null
signal="${1:-"-15"}"
if (( flag_wait )); then
pid_wait "${procs_to_kill[@]}"
fi
kill "$signal" "${procs_to_kill[@]}" 2>/dev/null
return 0
}