[PATCH 3/4] Documentation/hooks: add pre-auto-gc hook

[Miklos Vajna <vmiklos@frugalware.org>]

Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
---
 Documentation/hooks.txt |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/Documentation/hooks.txt b/Documentation/hooks.txt
index 76b8d77..04ec352 100644
--- a/Documentation/hooks.txt
+++ b/Documentation/hooks.txt
@@ -276,3 +276,13 @@ probably enable this hook.
 Both standard output and standard error output are forwarded to
 `git-send-pack` on the other end, so you can simply `echo` messages
 for the user.
+
+pre-auto-gc
+-----------
+
+This hook is invoked by `git-gc --auto`, and can be bypassed with
+`\--no-verify` option.  It takes no parameter, and exiting with non-zero
+status from this script causes the `git-gc --auto` to abort.
+
+The default 'pre-auto-gc' hook, when enabled, defers auto repacking when
+you are on battery.
-- 
1.5.5.rc2.4.g283c6