pack-objects: refactor the packing list
The hash table that stores the packing list for a given `pack-objects`
run was tightly coupled to the pack-objects code.
In this commit, we refactor the hash table and the underlying storage
array into a `packing_data` struct. The functionality for accessing and
adding entries to the packing list is hence accessible from other parts
of Git besides the `pack-objects` builtin.
This refactoring is a requirement for further patches in this series
that will require accessing the commit packing list from outside of
`pack-objects`.
The hash table implementation has been minimally altered: we now
use table sizes which are always a power of two, to ensure a uniform
index distribution in the array.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Makefile b/Makefile
index af847f8..48ff0bd 100644
--- a/Makefile
+++ b/Makefile
@@ -694,6 +694,7 @@
LIB_H += notes-utils.h
LIB_H += notes.h
LIB_H += object.h
+LIB_H += pack-objects.h
LIB_H += pack-revindex.h
LIB_H += pack.h
LIB_H += parse-options.h
@@ -831,6 +832,7 @@
LIB_OBJS += notes-utils.o
LIB_OBJS += object.o
LIB_OBJS += pack-check.o
+LIB_OBJS += pack-objects.o
LIB_OBJS += pack-revindex.o
LIB_OBJS += pack-write.o
LIB_OBJS += pager.o
