Merge branch 'eb/hash-transition'

Work to support a repository that work with both SHA-1 and SHA-256
hash algorithms has started.

* eb/hash-transition: (30 commits)
  t1016-compatObjectFormat: add tests to verify the conversion between objects
  t1006: test oid compatibility with cat-file
  t1006: rename sha1 to oid
  test-lib: compute the compatibility hash so tests may use it
  builtin/ls-tree: let the oid determine the output algorithm
  object-file: handle compat objects in check_object_signature
  tree-walk: init_tree_desc take an oid to get the hash algorithm
  builtin/cat-file: let the oid determine the output algorithm
  rev-parse: add an --output-object-format parameter
  repository: implement extensions.compatObjectFormat
  object-file: update object_info_extended to reencode objects
  object-file-convert: convert commits that embed signed tags
  object-file-convert: convert commit objects when writing
  object-file-convert: don't leak when converting tag objects
  object-file-convert: convert tag objects when writing
  object-file-convert: add a function to convert trees between algorithms
  object: factor out parse_mode out of fast-import and tree-walk into in object.h
  cache: add a function to read an OID of a specific algorithm
  tag: sign both hashes
  commit: export add_header_signature to support handling signatures on tags
  ...
This commit is contained in:
Junio C Hamano
2024-03-28 14:13:50 -07:00
62 changed files with 1880 additions and 385 deletions

View File

@@ -163,6 +163,9 @@ struct repository {
/* Repository's current hash algorithm, as serialized on disk. */
const struct git_hash_algo *hash_algo;
/* Repository's compatibility hash algorithm. */
const struct git_hash_algo *compat_hash_algo;
/* Repository's reference storage format, as serialized on disk. */
unsigned int ref_storage_format;
@@ -205,6 +208,7 @@ void repo_set_gitdir(struct repository *repo, const char *root,
const struct set_gitdir_args *extra_args);
void repo_set_worktree(struct repository *repo, const char *path);
void repo_set_hash_algo(struct repository *repo, int algo);
void repo_set_compat_hash_algo(struct repository *repo, int compat_algo);
void repo_set_ref_storage_format(struct repository *repo, unsigned int format);
void initialize_the_repository(void);
RESULT_MUST_BE_USED