Re: What's cooking in git.git (May 2026, #04)

> * tb/incremental-midx-part-3.3 (2026-04-29) 16 commits
>  - repack: allow `--write-midx=incremental` without `--geometric`
>  - repack: introduce `--write-midx=incremental`
>  - repack: implement incremental MIDX repacking
>  - packfile: ensure `close_pack_revindex()` frees in-memory revindex
>  - builtin/repack.c: convert `--write-midx` to an `OPT_CALLBACK`
>  - repack-geometry: prepare for incremental MIDX repacking
>  - repack-midx: extract `repack_fill_midx_stdin_packs()`
>  - repack-midx: factor out `repack_prepare_midx_command()`
>  - midx: expose `midx_layer_contains_pack()`
>  - repack: track the ODB source via existing_packs
>  - midx: support custom `--base` for incremental MIDX writes
>  - midx: introduce `--no-write-chain-file` for incremental MIDX writes
>  - midx: use `strvec` for `keep_hashes`
>  - midx: build `keep_hashes` array in order
>  - midx: use `strset` for retained MIDX files
>  - midx-write: handle noop writes when converting incremental chains
>
>  The repacking code has been refactored and compaction of MIDX layers
>  have been implemented, and incremental strategy that does not require
>  all-into-one repacking has been introduced.
>
>  Waiting for response(s) to review comment(s).
>  cf. <agTw579yuy4iHoMq@szeder.dev>
>  cf. <20260513230825.GA1378716@coredump.intra.peff.net>
>  source: <cover.1777507303.git.me@ttaylorr.com>