Current File : //etc/update-motd.d/50-landscape-sysinfo
#!/bin/sh
# don't try refresh this more than once per minute
# Due to cpu consumption and login delays (LP: #1893716)
CACHE="/var/lib/landscape/landscape-sysinfo.cache"
HAS_CACHE="FALSE"
CACHE_NEEDS_UPDATE="FALSE"
[ -r "$CACHE" ] && HAS_CACHE="TRUE"
[ -z "$(find "$CACHE" -newermt 'now-1 minutes' 2> /dev/null)" ] && CACHE_NEEDS_UPDATE="TRUE"
if [ "$HAS_CACHE" = "TRUE" ] && [ "$CACHE_NEEDS_UPDATE" = "FALSE" ]; then
cat "$CACHE"
else
SYSINFO=""
# pam_motd does not carry the environment
[ -f /etc/default/locale ] && . /etc/default/locale
export LANG
CORES=$(grep -c ^processor /proc/cpuinfo 2>/dev/null)
[ "$CORES" -eq "0" ] && CORES=1
THRESHOLD="${CORES:-1}.0"
if [ $(echo "`cut -f1 -d ' ' /proc/loadavg` < $THRESHOLD" | bc) -eq 1 ]; then
SYSINFO=$(printf "\n System information as of %s\n\n%s\n" \
"$(/bin/date)" \
"$(/usr/bin/landscape-sysinfo)")
echo "$SYSINFO" 2>/dev/null >"$CACHE" || true
chmod 0644 "$CACHE" 2>/dev/null || true
else
SYSINFO=$(printf "\n System information disabled due to load higher than %s\n" "$THRESHOLD")
if [ "$HAS_CACHE" = "TRUE" ]; then
if ! grep -q "System information as of" $CACHE 2>/dev/null; then
# do not replace a formerly good result due to load
echo "$SYSINFO" 2>/dev/null >"$CACHE" || true
chmod 0644 "$CACHE" 2>/dev/null || true
else
SYSINFO=$(cat "$CACHE")
fi
fi
fi
printf "%s\n" "$SYSINFO"
fi
exit 0
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