Below is some pseudo code to illustrate some options for the weekly
script. It's not meant as a solution but as a starting point for
discussion to Ted Unangst's request regarding laptops and desktops and
Nick Holland's request that ill-considered babble be accompanied by code.
Using at to schedule the maintenance could help -- at jobs get run later
if the machine was off. But a method, not quite provided here, is
needed to keep all the backlogged jobs from running the minute the
machine is turned on again.
/Lars
Index: weekly
===================================================================
RCS file: /cvs/src/etc/weekly,v
retrieving revision 1.23
diff -u -p -r1.23 weekly
--- weekly 25 May 2009 21:31:24 -0000 1.23
+++ weekly 30 Jan 2010 20:09:53 -0000
@@ -11,6 +11,15 @@ MAINOUT=/var/log/weekly.out
install -o 0 -g 0 -m 600 /dev/null $PARTOUT
install -o 0 -g 0 -m 600 -b /dev/null $MAINOUT
+THIS_SCRIPT=`readlink -f $0`
+
+# do we check system load before running?
+if [ ${2:-' '} = 'look' ] || [ ${1:-' '} = 'look' ]; then
+ TURKEYLOOK=1; # check system load
+else
+ TURKEYLOOK=0; #
+fi
+
start_part() {
TITLE=$1
exec > $PARTOUT 2>&1
@@ -40,36 +49,97 @@ run_script() {
. $f
}
+turkeylook() {
+ # apm status 1 should mean plugged in to external charger
+ if [ 1 -eq `apm -a` ]; then
+ # this currently wastes time, a no-delay method is needed
+ # Column 19 of vmstat's output should be the cpu percentage
idle
+ if [ "80" -le "` vmstat -c 2 | awk 'END {print $19}'`" ];then
+ return 0; # plugged in and rather idle
+ else
+ return 2; # plugged but not idle
+ fi
+ fi
+ return 1; # not plugged
+}
+
+
start_part "Running weekly.local:"
run_script "weekly.local"
-next_part "Rebuilding locate database:"
-if [ -f /var/db/locate.database ]; then
- TMP=`mktemp /var/db/locate.database.XXXXXXXXXX`
- if [ $? -eq 0 ]; then
- trap 'rm -f $TMP; exit 1' 0 1 15
- UPDATEDB="/usr/libexec/locate.updatedb"
- echo "${UPDATEDB} --fcodes=- --tmpdir=${TMPDIR:-/var/tmp}" | \
- nice -5 su -m nobody 2>/dev/null 1>$TMP
- if [ -s "$TMP" ]; then
- chmod 444 $TMP
- chown root:wheel $TMP
- mv -f $TMP /var/db/locate.database
- else
- echo "Not installing locate database; zero size"
- fi
- else
- echo "Not rebuilding locate database; can't create temp file"
+##
+###
+
+weekly_locate() {
+ if [ ${TURKEYLOOK} -gt 0 ]; then
+ turkeylook;
+ if [ $? -gt 0 ]; then
+ echo "${THIS_SCRIPT} locate look | at now +1 hour";
+ exit;
fi
-fi
+ fi
-next_part "Rebuilding whatis databases:"
-/usr/libexec/makewhatis
+ next_part "Rebuilding locate database:"
-next_part "Doing login accounting:"
-[ "X$LOGINACCOUNTING" = X1 ] && {
- ac -p | sort -nr -k 2
+ if [ -f /var/db/locate.database ]; then
+ TMP=`mktemp /var/db/locate.database.XXXXXXXXXX`
+ if [ $? -eq 0 ]; then
+ trap 'rm -f $TMP; exit 1' 0 1 15
+ UPDATEDB="/usr/libexec/locate.updatedb"
+ echo "${UPDATEDB} --fcodes=- --tmpdir=${TMPDIR:-/var/tmp}" | \
+ nice -5 su -m nobody 2>/dev/null 1>$TMP
+ if [ -s "$TMP" ]; then
+ chmod 444 $TMP
+ chown root:wheel $TMP
+ mv -f $TMP /var/db/locate.database
+ else
+ echo "Not installing locate database; zero size"
+ fi
+ else
+ echo "Not rebuilding locate database; can't create temp file"
+ fi
+ fi
}
+
+##
+###
+
+weekly_whatis() {
+ if [ ${TURKEYLOOK} -gt 0 ]; then
+ turkeylook;
+ if [ $? -gt 0 ]; then
+ echo "${THIS_SCRIPT} whatis look | at now +1 hour";
+ exit;
+ fi
+ fi
+
+ next_part "Rebuilding whatis databases:"
+ /usr/libexec/makewhatis
+
+ next_part "Doing login accounting:"
+ [ "X$LOGINACCOUNTING" = X1 ] && {
+ ac -p | sort -nr -k 2
+ }
+}
+
+##
+###
+
+case "$1" in
+
+ 'whatis')
+ weekly_whatis;
+ ;;
+
+ 'locate')
+ weekly_locate;
+ ;;
+
+ *)
+ weekly_locate;
+ weekly_whatis;
+ ;;
+esac
end_part
rm -f $PARTOUT
