Re: [PATCH v3] bulk-checkin: only support blobs in index_bulk_checkin

> Taylor Blau <me@ttaylorr.com> writes:
>
>> I am not sure that I follow. If we have an address in memory from which
>> we want to stream raw bytes directly to the packfile, that should work
>> for all objects regardless of type, no?
>
> For a single hash world, yes.  For keeping track of "the other hash"
> and correspondence, you need to (1) interpret the contents of the
> object (e.g., if you received a tree contents for SHA-1 repository,
> you'd need to split them into tree entries and know which parts of
> the bytestream are SHA-1 hashes of the tree contebnts), (2) come
> up with the corresponding tree contents in the SHA-256 world (you
> should be able to do that now you know SHA-1 names of the objects
> directly referred to by the tree) and hash that using SHA-256, and
> (3) remember the SHA-1 and the SHA-256 name correspondence of the
> tree object you just hashed, in addition to the usual (4) hashing
> the contents using SHA-1 hash algorithm without caring what the byte
> stream represents.