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Merge branch 'tb/multi-pack-verbatim-reuse'

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Streaming spans of packfile data used to be done only from a
single, primary, pack in a repository with multiple packfiles.  It
has been extended to allow reuse from other packfiles, too.

* tb/multi-pack-verbatim-reuse: (26 commits)
  t/perf: add performance tests for multi-pack reuse
  pack-bitmap: enable reuse from all bitmapped packs
  pack-objects: allow setting `pack.allowPackReuse` to "single"
  t/test-lib-functions.sh: implement `test_trace2_data` helper
  pack-objects: add tracing for various packfile metrics
  pack-bitmap: prepare to mark objects from multiple packs for reuse
  pack-revindex: implement `midx_pair_to_pack_pos()`
  pack-revindex: factor out `midx_key_to_pack_pos()` helper
  midx: implement `midx_preferred_pack()`
  git-compat-util.h: implement checked size_t to uint32_t conversion
  pack-objects: include number of packs reused in output
  pack-objects: prepare `write_reused_pack_verbatim()` for multi-pack reuse
  pack-objects: prepare `write_reused_pack()` for multi-pack reuse
  pack-objects: pass `bitmapped_pack`'s to pack-reuse functions
  pack-objects: keep track of `pack_start` for each reuse pack
  pack-objects: parameterize pack-reuse routines over a single pack
  pack-bitmap: return multiple packs via `reuse_partial_packfile_from_bitmap()`
  pack-bitmap: simplify `reuse_partial_packfile_from_bitmap()` signature
  ewah: implement `bitmap_is_empty()`
  pack-bitmap: pass `bitmapped_pack` struct to pack-reuse functions
  ...
This commit is contained in:
Junio C Hamano
2024-01-12 16:09:56 -08:00
parent 0ebbaa07d0 ba47d88795
commit 0fea6b73f1
21 changed files with 1036 additions and 195 deletions
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9
git-compat-util.h
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@ -1015,6 +1015,15 @@ static inline unsigned long cast_size_t_to_ulong(size_t a)
return (unsigned long)a;
}
static inline uint32_t cast_size_t_to_uint32_t(size_t a)
{
if (a != (uint32_t)a)
die("object too large to read on this platform: %"
PRIuMAX" is cut off to %u",
(uintmax_t)a, (uint32_t)a);
return (uint32_t)a;
}
static inline int cast_size_t_to_int(size_t a)
{
if (a > INT_MAX)