1#!/bin/sh
2#
3# An example hook script to verify if you are on battery, in case you
4# are running Linux or OS X. Called by git-gc --auto with no arguments.
5# The hook should exit with non-zero status after issuing an appropriate
6# message if it wants to stop the auto repacking.
7#
8# This hook is stored in the contrib/hooks directory. Your distribution
9# may have put this somewhere else. If you want to use this hook, you
10# should make this script executable then link to it in the repository
11# you would like to use it in.
12#
13# For example, if the hook is stored in
14# /usr/share/git-core/contrib/hooks/pre-auto-gc-battery:
15#
16# cd /path/to/your/repository.git
17# ln -sf /usr/share/git-core/contrib/hooks/pre-auto-gc-battery \
18#	hooks/pre-auto-gc
19
20if test -x /sbin/on_ac_power && (/sbin/on_ac_power;test $? -ne 1)
21then
22	exit 0
23elif test "$(cat /sys/class/power_supply/AC/online 2>/dev/null)" = 1
24then
25	exit 0
26elif grep -q 'on-line' /proc/acpi/ac_adapter/AC/state 2>/dev/null
27then
28	exit 0
29elif grep -q '0x01$' /proc/apm 2>/dev/null
30then
31	exit 0
32elif grep -q "AC Power \+: 1" /proc/pmu/info 2>/dev/null
33then
34	exit 0
35elif test -x /usr/bin/pmset && /usr/bin/pmset -g batt |
36	grep -q "drawing from 'AC Power'"
37then
38	exit 0
39fi
40
41echo "Auto packing deferred; not on AC"
42exit 1
43