135 lines
3.7 KiB
Bash
135 lines
3.7 KiB
Bash
#!/bin/sh -e
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usage () {
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echo "Usage: $0 [-h|--help|-v|--verbose]"
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echo ""
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echo " -h | --help print this help"
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echo " -v | --verbose be verbose (messages go to STDOUT)"
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echo " -V | --version print version information"
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echo " -D | --debug debug mode"
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echo ""
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echo " Possible return values:"
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echo " 0 most likely running on a laptop"
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echo " 1 most likely NOT running on a laptop"
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echo " 2 called with unknown option, -h, --help, -V, --version, -D or --debug"
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}
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PRINTIT="/bin/true" # /bin/true accepts any option but never prints anything
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EXIT="exit" # replaced in debug mode by /bin/true
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# Check wether we were asked to be verbose
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if [ "$1" != "" ]; then
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case "$1" in
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"-v"|"--verbose")
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PRINTIT="echo"
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;;
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"-V"|"--version")
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echo "Version: @VERSION@"
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exit 2
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;;
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"-h"|"--help")
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usage
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exit 2
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;;
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"-D"|"--debug")
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EXIT="/bin/true"
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set -x
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;;
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*)
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echo "UNKNOWN OPTION: $1"
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usage
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exit 2
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;;
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esac
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fi
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# Are we a mac?
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if test -d /proc/pmu; then
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batteries=$(grep Battery /proc/pmu/info | cut -f2 -d:)
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if test "$batteries" -ne 0; then
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$PRINTIT "We're a laptop (Mac: batteries found)" >&2;
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$EXIT 0
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fi
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exit 1
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fi
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if dmidecode="$(command -v dmidecode)" && [ -r /dev/mem -a -x "$dmidecode" ]
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then
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# dmidecode to grab the Chassis type
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dmitype=$("$dmidecode" --string chassis-type)
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if test "$dmitype" = "Notebook" || \
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test "$dmitype" = "Portable" || \
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test "$dmitype" = "Laptop" || \
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test "$dmitype" = "Hand Held"; then
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$PRINTIT "We're a laptop (dmidecode returned \"$dmitype\")" >&2
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$EXIT 0
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fi
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# turn back on for debugging
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#echo "$dmitype"
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fi
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if [ -e /sys/devices/virtual/dmi/id/chassis_type ] ; then
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chassis_type="$(cat /sys/devices/virtual/dmi/id/chassis_type)"
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case "$chassis_type" in
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8) # Portable
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$PRINTIT "We're a portable (chassis_type is $chassis_type)" >&2
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$EXIT 0
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;;
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9) # Laptop
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$PRINTIT "We're a laptop (chassis_type is $chassis_type)" >&2
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$EXIT 0
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;;
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10) # Notebook
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$PRINTIT "We're a notebook (chassis_type is $chassis_type)" >&2
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$EXIT 0
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;;
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11) # Hand Held
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$PRINTIT "We're a hand held (chassis_type is $chassis_type)" >&2
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$EXIT 0
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;;
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esac
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fi
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# check for non device ACPI batteries
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/sbin/modprobe battery 2> /dev/null || true
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sysfs_power_supply=/sys/class/power_supply
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if [ -d $sysfs_power_supply ]; then
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for power_supply in $(ls $sysfs_power_supply)
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do
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if (
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grep -q Battery $sysfs_power_supply/$power_supply/type 2>/dev/null
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) && (
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! grep -q Device $sysfs_power_supply/$power_supply/scope 2>/dev/null
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)
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then
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$PRINTIT "We're a laptop (non device ACPI batteries found)" >&2
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$EXIT 0
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fi
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done
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fi
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# old interface:
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if [ -d /proc/acpi/battery ]; then
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results=`find /proc/acpi/battery -mindepth 1 -type d`
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if [ ! -z "$results" ]; then
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$PRINTIT "We're a laptop (ACPI batteries found)" >&2
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$EXIT 0
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fi
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fi
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# check for APM batteries. This sucks, because we'll only get a valid response
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# if the laptop has a battery fitted at the time
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if [ -f /proc/apm ]; then
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battery=`awk '{print $6}' </proc/apm`
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if [ "$battery" != "0xff" ] && [ "$battery" != "0x80" ]; then
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$PRINTIT "We're a laptop (APM batteries found)" >&2
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$EXIT 0
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fi
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fi
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$PRINTIT "We're not on a laptop (no relevant hint found)" >&2
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$EXIT 1
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