On Sun, Sep 1, 2013 at 11:05 PM, Nguyễn Thái Ngọc Duy <pclo...@gmail.com> wrote: > Current code peaks into the transfered pack's header, if the number of
s/peaks/peeks/ > objects is under a limit, unpack-objects is called to handle the rest, > otherwise index-pack is. This patch makes fetch-pack use index-pack > unconditionally, then turn objects loose and remove the pack at the > end. unpack-objects is deprecated and may be removed in future. > > There are a few reasons for this: > > - down to two code paths to maintain regarding pack reading > (sha1_file.c and index-pack.c). When .pack v4 comes, we don't need > to duplicate work in index-pack and unpack-objects. > > - the number of objects should not be the only indicator for > unpacking. If there are a few large objects in the pack, the pack > should be kept anyway. Keeping the pack lets us examine the whole > pack later and make a better decision. > > - by going through index-pack first, then unpack, we pay extra cost > for completing a thin pack into a full one. But compared to fetch's > total time, it should not be noticeable because unpack-objects is > only called when the pack contains a small number of objects. > > - unpack-objects does not support streaming large blobs. Granted > force_object_loose(), which is used by this patch, does not either. > But it'll be easier to do so because sha1_file.c interface supports > streaming. > > Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com> -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
