git/Makefile, branch jch

Merge branch 'ps/odb-in-memory' into jch

2026-05-17T13:58:49Z

Add a new odb "in-memory" source that is meant to only hold tentative objects (like the virtual blob object that represents the working tree file used by "git blame"). * ps/odb-in-memory: t/unit-tests: add tests for the in-memory object source odb: generic in-memory source odb/source-inmemory: stub out remaining functions odb/source-inmemory: implement `freshen_object()` callback odb/source-inmemory: implement `count_objects()` callback odb/source-inmemory: implement `find_abbrev_len()` callback odb/source-inmemory: implement `for_each_object()` callback odb/source-inmemory: convert to use oidtree oidtree: add ability to store data cbtree: allow using arbitrary wrapper structures for nodes odb/source-inmemory: implement `write_object_stream()` callback odb/source-inmemory: implement `write_object()` callback odb/source-inmemory: implement `read_object_stream()` callback odb/source-inmemory: implement `read_object_info()` callback odb: fix unnecessary call to `find_cached_object()` odb/source-inmemory: implement `free()` callback odb: introduce "in-memory" source

Merge branch 'jt/odb-transaction-write' into jch

2026-05-17T13:58:48Z

ODB transaction interface is being reworked to explicitly handle object writes. * jt/odb-transaction-write: odb/transaction: make `write_object_stream()` pluggable object-file: generalize packfile writes to use odb_write_stream object-file: avoid fd seekback by checking object size upfront object-file: remove flags from transaction packfile writes odb: update `struct odb_write_stream` read() callback odb/transaction: use pluggable `begin_transaction()` odb: split `struct odb_transaction` into separate header

Merge branch 'mm/git-url-parse' into jch

2026-05-17T13:58:44Z

The internal URL parsing logic has been made accessible via a new subcommand "git url-parse". * mm/git-url-parse: t9904: add tests for the new url-parse builtin doc: describe the url-parse builtin builtin: create url-parse command urlmatch: define url_parse function url: return URL_SCHEME_UNKNOWN instead of dying url: move scheme detection to URL header/source url: move url_is_local_not_ssh to url.h connect: rename enum protocol to url_scheme

Merge branch 'js/mingw-no-nedmalloc' into jch

2026-05-17T13:58:41Z

Stop using unmaintained custom allocator in Windows build which was the last user of the code. * js/mingw-no-nedmalloc: mingw: remove the vendored compat/nedmalloc/ subtree mingw: drop the build-system plumbing for nedmalloc mingw: stop using nedmalloc

Merge branch 'js/objects-larger-than-4gb-on-windows' into jch

2026-05-17T13:58:41Z

Update code paths that assumed "unsigned long" was long enough for "size_t". * js/objects-larger-than-4gb-on-windows: ci: run expensive tests on push builds to integration branches t5608: mark >4GB tests as EXPENSIVE test-tool synthesize: add precomputed SHA-256 pack for 4 GiB + 1 test-tool synthesize: precompute pack for 4 GiB + 1 test-tool synthesize: use the unsafe hash for speed t5608: add regression test for >4GB object clone test-tool: add a helper to synthesize large packfiles delta, packfile: use size_t for delta header sizes odb, packfile: use size_t for streaming object sizes git-zlib: handle data streams larger than 4GB index-pack, unpack-objects: use size_t for object size

Merge branch 'kh/name-rev-custom-format' into jch

2026-05-17T13:58:38Z

A new builtin "git format-rev" is introduced for pretty formatting one revision expression per line or commit object names found in running text. * kh/name-rev-custom-format: format-rev: introduce builtin for on-demand pretty formatting name-rev: make dedicated --annotate-stdin --name-only test name-rev: factor code for sharing with a new command name-rev: run clang-format before factoring code name-rev: wrap both blocks in braces

t/unit-tests: add tests for the in-memory object source

2026-05-14T19:50:45Z

While the in-memory object source is a full-fledged source, our code base only exercises parts of its functionality because we only use it in git-blame(1). Implement unit tests to verify that the yet-unused functionality of the backend works as expected. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano

odb: introduce "in-memory" source

2026-05-14T19:50:44Z

Next to our typical object database sources, each object database also has an implicit source of "cached" objects. These cached objects only exist in memory and some use cases: - They contain evergreen objects that we expect to always exist, like for example the empty tree. - They can be used to store temporary objects that we don't want to persist to disk, which is used by git-blame(1) to create a fake worktree commit. Overall, their use is somewhat restricted though. For example, we don't provide the ability to use it as a temporary object database source that allows the user to write objects, but discard them after Git exists. So while these cached objects behave almost like a source, they aren't used as one. This is about to change over the following commits, where we will turn cached objects into a new "in-memory" source. This will allow us to use it exactly the same as any other source by providing the same common interface as the "files" source. For now, the in-memory source only hosts the cached objects and doesn't provide any logic yet. This will change with subsequent commits, where we move respective functionality into the source. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano

Merge branch 'jt/odb-transaction-write' into ps/odb-in-memory

2026-05-14T19:50:31Z

* jt/odb-transaction-write: odb/transaction: make `write_object_stream()` pluggable object-file: generalize packfile writes to use odb_write_stream object-file: avoid fd seekback by checking object size upfront object-file: remove flags from transaction packfile writes odb: update `struct odb_write_stream` read() callback odb/transaction: use pluggable `begin_transaction()` odb: split `struct odb_transaction` into separate header

odb: split `struct odb_transaction` into separate header

2026-05-14T19:44:39Z

The current ODB transaction interface is colocated with other ODB interfaces in "odb.{c,h}". Subsequent commits will expand `struct odb_transaction` to support write operations on the transaction directly. To keep things organized and prevent "odb.{c,h}" from becoming more unwieldy, split out `struct odb_transaction` into a separate header. Signed-off-by: Justin Tobler Signed-off-by: Junio C Hamano