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Merge branch 'ps/cat-file-filter-batch'

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"git cat-file --batch" and friends learned to allow "--filter=" to
omit certain objects, just like the transport layer does.

* ps/cat-file-filter-batch:
  builtin/cat-file: use bitmaps to efficiently filter by object type
  builtin/cat-file: deduplicate logic to iterate over all objects
  pack-bitmap: introduce function to check whether a pack is bitmapped
  pack-bitmap: add function to iterate over filtered bitmapped objects
  pack-bitmap: allow passing payloads to `show_reachable_fn()`
  builtin/cat-file: support "object:type=" objects filter
  builtin/cat-file: support "blob:limit=" objects filter
  builtin/cat-file: support "blob:none" objects filter
  builtin/cat-file: wire up an option to filter objects
  builtin/cat-file: introduce function to report object status
  builtin/cat-file: rename variable that tracks usage
This commit is contained in:
Junio C Hamano
2025-04-16 13:54:20 -07:00
parent 9bdd7ecf7e 8002e8ee18
commit a271b05066
8 changed files with 411 additions and 82 deletions
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22
pack-bitmap.h
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@@ -50,7 +50,8 @@ typedef int (*show_reachable_fn)(
int flags,
uint32_t hash,
struct packed_git *found_pack,
off_t found_offset);
off_t found_offset,
void *payload);
struct bitmap_index;
@@ -66,6 +67,13 @@ struct bitmapped_pack {
struct bitmap_index *prepare_bitmap_git(struct repository *r);
struct bitmap_index *prepare_midx_bitmap_git(struct multi_pack_index *midx);
/*
* Given a bitmap index, determine whether it contains the pack either directly
* or via the multi-pack-index.
*/
int bitmap_index_contains_pack(struct bitmap_index *bitmap, struct packed_git *pack);
void count_bitmap_commit_list(struct bitmap_index *, uint32_t *commits,
uint32_t *trees, uint32_t *blobs, uint32_t *tags);
void traverse_bitmap_commit_list(struct bitmap_index *,
@@ -78,6 +86,18 @@ int test_bitmap_pseudo_merges(struct repository *r);
int test_bitmap_pseudo_merge_commits(struct repository *r, uint32_t n);
int test_bitmap_pseudo_merge_objects(struct repository *r, uint32_t n);
struct list_objects_filter_options;
/*
* Filter bitmapped objects and iterate through all resulting objects,
* executing `show_reach` for each of them. Returns `-1` in case the filter is
* not supported, `0` otherwise.
*/
int for_each_bitmapped_object(struct bitmap_index *bitmap_git,
struct list_objects_filter_options *filter,
show_reachable_fn show_reach,
void *payload);
#define GIT_TEST_PACK_USE_BITMAP_BOUNDARY_TRAVERSAL \
"GIT_TEST_PACK_USE_BITMAP_BOUNDARY_TRAVERSAL"