archive: handle commits with an empty tree
[git/jnareb-git.git] / contrib / hooks / pre-auto-gc-battery
blob1f914c94aa748f57bd6c70fdd18dfb681c684556
1 #!/bin/sh
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.
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.
13 # For example, if the hook is stored in
14 # /usr/share/git-core/contrib/hooks/pre-auto-gc-battery:
16 # chmod a+x pre-auto-gc-battery
17 # cd /path/to/your/repository.git
18 # ln -sf /usr/share/git-core/contrib/hooks/pre-auto-gc-battery \
19 # hooks/pre-auto-gc
21 if test -x /sbin/on_ac_power && /sbin/on_ac_power
22 then
23 exit 0
24 elif test "$(cat /sys/class/power_supply/AC/online 2>/dev/null)" = 1
25 then
26 exit 0
27 elif grep -q 'on-line' /proc/acpi/ac_adapter/AC/state 2>/dev/null
28 then
29 exit 0
30 elif grep -q '0x01$' /proc/apm 2>/dev/null
31 then
32 exit 0
33 elif grep -q "AC Power \+: 1" /proc/pmu/info 2>/dev/null
34 then
35 exit 0
36 elif test -x /usr/bin/pmset && /usr/bin/pmset -g batt |
37 grep -q "Currently drawing from 'AC Power'"
38 then
39 exit 0
42 echo "Auto packing deferred; not on AC"
43 exit 1