builtin/replay: move core logic into "libgit.a"

Move the core logic used to replay commits into "libgit.a" so that it
can be easily reused by other commands. It will be used in a subsequent
commit where we're about to introduce a new git-history(1) command.

Note that with this change we have no sign-comparison warnings anymore,
and neither do we depend on `the_repository`.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index b7eba509c6..1c64a5d2ae 100644
--- a/Makefile
+++ b/Makefile
@@ -1285,6 +1285,7 @@ LIB_OBJS += repack-geometry.o
 LIB_OBJS += repack-midx.o
 LIB_OBJS += repack-promisor.o
 LIB_OBJS += replace-object.o
+LIB_OBJS += replay.o
 LIB_OBJS += repo-settings.o
 LIB_OBJS += repository.o
 LIB_OBJS += rerere.o