[PATCH 3/3] contrib/hooks: add an example pre-auto-gc hook
- From
Miklos Vajna <vmiklos@frugalware.org>
- Date
- Apr 2, 2008, 20:22 UTC
- Message-ID
- <96017502f7bca67a14f9a09d19c8ea42bde78949.1207167342.git.vmiklos@frugalware.org>
- In-Reply-To
- <7vk5jg82b7.fsf@gitster.siamese.dyndns.org>
It disables git-gc --auto when you are running Linux and you are on battery.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> ---
On Wed, Apr 02, 2008 at 12:49:32PM -0700, Junio C Hamano <gitster@pobox.com> wrote:
Show 18 quoted lines
> Miklos Vajna <vmiklos@frugalware.org> writes: > > > +if test -x /sbin/on_ac_power && /sbin/on_ac_power > > +then > > + /sbin/on_ac_power > > + if [ $? = 1 ]; then > > + exit 0 > > + fi > > Shouldn't the above be: > > if test -x /sbin/on_ac_power && /sbin/on_ac_power > then > exit 0 > > That is, you checked if you have the command to check > on-ac-power-ness, > and the command says yes, so you happily let "gc --auto" do its thing.
Hm, I must be crazy when I wrote this. It has three exit codes:
0 if on AC power 1 if not on AC power 255 if can't tell
So IMHO the right think to do is to check if the return value is != 1, and if that's true, then do an exit 0.
Here is try4.
contrib/hooks/pre-auto-gc-battery | 40 +++++++++++++++++++++++++++++++++++++ 1 files changed, 40 insertions(+), 0 deletions(-) create mode 100644 contrib/hooks/pre-auto-gc-battery
diff --git a/contrib/hooks/pre-auto-gc-battery b/contrib/hooks/pre-auto-gc-battery new file mode 100644 index 0000000..c6af057 --- /dev/null +++ b/contrib/hooks/pre-auto-gc-battery @@ -0,0 +1,40 @@ +#!/bin/sh +# +# An example hook script to verify if you are on battery, in case you +# are running Linux. Called by git-gc --auto with no arguments. The hook +# should exit with non-zero status after issuing an appropriate message +# if it wants to stop the auto repacking. +# +# This hook is stored in the contrib/hooks directory. Your distribution +# may have put this somewhere else. If you want to use this hook, you +# should make this script executable then link to it in the repository +# you would like to use it in. +# +# For example, if the hook is stored in +# /usr/share/git-core/contrib/hooks/pre-auto-gc-battery: +# +# chmod a+x pre-auto-gc-battery +# cd /path/to/your/repository.git +# ln -sf /usr/share/git-core/contrib/hooks/pre-auto-gc-battery \ +# hooks/pre-auto-gc + +if test -x /sbin/on_ac_power +then + /sbin/on_ac_power + if test $? -ne 1 + then + exit 0 + fi +elif test "$(cat /sys/class/power_supply/AC/online 2>/dev/null)" = 1 +then + exit 0 +elif grep -q 'on-line' /proc/acpi/ac_adapter/AC/state 2>/dev/null +then + exit 0 +elif grep -q '0x01$' /proc/apm 2>/dev/null +then + exit 0 +fi + +echo "Auto packing deferred; on battery" +exit 1
-- 1.5.5.rc2.4.gec07.dirty