Signed-off-by: NJunio C Hamano <junkio@cox.net>

This reverts commit 9b088c4e.

Protecting 'mature' objects does not make it any safer.  We should
admit that git-prune is inherently unsafe when run in parallel with
other operations without involving unwarranted locking overhead,
and with the latest git, even rebase and reset would not immediately
create crufts anyway.

This option gives grace period to objects that are unreachable
from the refs from getting pruned.

The default value is 24 hours and may be changed using
gc.prunegrace.
Signed-off-by: NMatthias Lederhofer <matled@gmx.net>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

This reverts commit 74d20040.
Version from Johannes to introduce GIT_TEMPLATE_DIR is simpler,
although I unconsciously stayed away from introducing yet another
environment variable.

The initial t/trash repository for testing was created properly
but over time we gained many tests that create secondary test
repositories with init-db or clone and they were not careful
enough.

This fixes it.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The intention of the test seems to be to build a long chain of
clones that locally borrow objects from their parents and see the
system give up dereferencing long chains.  There were two problems:

 (1) it did not test the right repository;
 (2) it did not build a chain long enough to trigger the limitation.

I do not think it is a good test to make sure the limitation the
current implementation happens to have still exists, but that is
a topic at a totally different level.

At least this fixes the broken test.
Signed-off-by: NJunio C Hamano <junkio@cox.net>

The only visible change is that git-blame doesn't understand
"--compability" anymore, but it does accept "--compatibility" instead,
which is already documented.
Signed-off-by: NPavel Roskin <proski@gnu.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Signed-off-by: NMartin Waitz <tali@admingilde.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>