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Merge branch 'ps/object-read-stream'

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The "git_istream" abstraction has been revamped to make it easier
to interface with pluggable object database design.

* ps/object-read-stream:
  streaming: drop redundant type and size pointers
  streaming: move into object database subsystem
  streaming: refactor interface to be object-database-centric
  streaming: move logic to read packed objects streams into backend
  streaming: move logic to read loose objects streams into backend
  streaming: make the `odb_read_stream` definition public
  streaming: get rid of `the_repository`
  streaming: rely on object sources to create object stream
  packfile: introduce function to read object info from a store
  streaming: move zlib stream into backends
  streaming: create structure for filtered object streams
  streaming: create structure for packed object streams
  streaming: create structure for loose object streams
  streaming: create structure for in-core object streams
  streaming: allocate stream inside the backend-specific logic
  streaming: explicitly pass packfile info when streaming a packed object
  streaming: propagate final object type via the stream
  streaming: drop the `open()` callback function
  streaming: rename `git_istream` into `odb_read_stream`
This commit is contained in:
Junio C Hamano
2025-12-16 11:08:34 +09:00
parent d8af7cadaa 7b94028652
commit dbe54273a7
20 changed files with 779 additions and 729 deletions
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17
packfile.h
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@@ -9,6 +9,7 @@
/* in odb.h */
struct object_info;
struct odb_read_stream;
struct packed_git {
struct pack_window *windows;
@@ -177,6 +178,21 @@ void packfile_store_add_pack(struct packfile_store *store,
for (struct packfile_list_entry *e = packfile_store_get_packs(repo->objects->packfiles); \
((p) = (e ? e->pack : NULL)); e = e->next)
int packfile_store_read_object_stream(struct odb_read_stream **out,
struct packfile_store *store,
const struct object_id *oid);
/*
* Try to read the object identified by its ID from the object store and
* populate the object info with its data. Returns 1 in case the object was
* not found, 0 if it was and read successfully, and a negative error code in
* case the object was corrupted.
*/
int packfile_store_read_object_info(struct packfile_store *store,
const struct object_id *oid,
struct object_info *oi,
unsigned flags);
/*
* Get all packs managed by the given store, including packfiles that are
* referenced by multi-pack indices.
@@ -376,7 +392,6 @@ const struct packed_git *has_packed_and_bad(struct repository *, const struct ob
* Iff a pack file in the given repository contains the object named by sha1,
* return true and store its location to e.
*/
int find_pack_entry(struct repository *r, const struct object_id *oid, struct pack_entry *e);
int find_kept_pack_entry(struct repository *r, const struct object_id *oid, unsigned flags, struct pack_entry *e);
int has_object_pack(struct repository *r, const struct object_id *oid);