Adam Borowski <kilob...@angband.pl> writes:
> Desktops and servers tend to have no power sensor, thus on_ac_power returns
> 255 ("unknown").
>
> If that tool returns "unknown", there's no point in querying other sources
> as it already queried them, and is smarter than us (can handle multiple
> adapters).
The explanation talks about the exit status 255 being special and
serves to signal "there is no point continuing, and it is OK to
assume we are not on batttery", while the code says that anything
but exit status 1 can be treated as such. Which is correct?
> Reported by: Xin Li <delp...@google.com>
> Signed-off-by: Adam Borowski <kilob...@angband.pl>
> ---
> contrib/hooks/pre-auto-gc-battery | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/contrib/hooks/pre-auto-gc-battery
> b/contrib/hooks/pre-auto-gc-battery
> index 6a2cdebdb..7ba78c4df 100755
> --- a/contrib/hooks/pre-auto-gc-battery
> +++ b/contrib/hooks/pre-auto-gc-battery
> @@ -17,7 +17,7 @@
> # ln -sf /usr/share/git-core/contrib/hooks/pre-auto-gc-battery \
> # hooks/pre-auto-gc
>
> -if test -x /sbin/on_ac_power && /sbin/on_ac_power
> +if test -x /sbin/on_ac_power && (/sbin/on_ac_power;test $? -ne 1)
> then
> exit 0
> elif test "$(cat /sys/class/power_supply/AC/online 2>/dev/null)" = 1
