On Wed, Apr 25, 2018 at 05:37:52PM +0900, Junio C Hamano wrote:

* bc/object-id (2018-04-24) 41 commits
 - merge-one-file: compute empty blob object ID
 - add--interactive: compute the empty tree value
 - Update shell scripts to compute empty tree object ID
 - sha1_file: only expose empty object constants through git_hash_algo
 - dir: use the_hash_algo for empty blob object ID
 - sequencer: use the_hash_algo for empty tree object ID
 - cache-tree: use is_empty_tree_oid
 - sha1_file: convert cached object code to struct object_id
 - builtin/reset: convert use of EMPTY_TREE_SHA1_BIN
 - builtin/receive-pack: convert one use of EMPTY_TREE_SHA1_HEX
 - wt-status: convert two uses of EMPTY_TREE_SHA1_HEX
 - submodule: convert several uses of EMPTY_TREE_SHA1_HEX
 - sequencer: convert one use of EMPTY_TREE_SHA1_HEX
 - merge: convert empty tree constant to the_hash_algo
 - builtin/merge: switch tree functions to use object_id
 - builtin/am: convert uses of EMPTY_TREE_SHA1_BIN to the_hash_algo
 - builtin/receive-pack: avoid hard-coded constants for push certs
 - diff: specify abbreviation size in terms of the_hash_algo
 - upload-pack: replace use of several hard-coded constants
 - revision: replace use of hard-coded constants
 - http: eliminate hard-coded constants
 - dir: convert struct untracked_cache_dir to object_id
 - commit: convert uses of get_sha1_hex to get_oid_hex
 - index-pack: abstract away hash function constant
 - pack-redundant: convert linked lists to use struct object_id
 - Update struct index_state to use struct object_id
 - split-index: convert struct split_index to object_id
 - submodule-config: convert structures to object_id
 - fsck: convert static functions to struct object_id
 - tree-walk: convert get_tree_entry_follow_symlinks to object_id
 - tree-walk: avoid hard-coded 20 constant
 - pack-redundant: abstract away hash algorithm
 - pack-objects: abstract away hash algorithm
 - packfile: abstract away hash constant values
 - packfile: convert find_pack_entry to object_id
 - sha1_file: convert freshen functions to object_id
 - packfile: convert has_sha1_pack to object_id
 - packfile: remove unused member from struct pack_entry
 - Remove unused member in struct object_context
 - server-info: remove unused members from struct pack_info
 - cache: add a function to read an object ID from a buffer

 Conversion from uchar[20] to struct object_id continues.

I do plan to reroll this, and if you want to forge my sign-off on the
patch I missed in the mean time, please do.
-- 
brian m. carlson: Houston, Texas, US
OpenPGP: https://keybase.io/bk2204