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

@ -1994,8 +1994,8 @@ static int fast_forward_to(struct tree *head, struct tree *remote, int reset)
opts.reset = reset ? UNPACK_RESET_PROTECT_UNTRACKED : 0;
opts.preserve_ignored = 0; /* FIXME: !overwrite_ignore */
opts.fn = twoway_merge;
init_tree_desc(&t[0], head->buffer, head->size);
init_tree_desc(&t[1], remote->buffer, remote->size);
init_tree_desc(&t[0], &head->object.oid, head->buffer, head->size);
init_tree_desc(&t[1], &remote->object.oid, remote->buffer, remote->size);
if (unpack_trees(2, t, &opts)) {
rollback_lock_file(&lock_file);
@ -2029,7 +2029,7 @@ static int merge_tree(struct tree *tree)
opts.dst_index = &the_index;
opts.merge = 1;
opts.fn = oneway_merge;
init_tree_desc(&t[0], tree->buffer, tree->size);
init_tree_desc(&t[0], &tree->object.oid, tree->buffer, tree->size);
if (unpack_trees(1, t, &opts)) {
rollback_lock_file(&lock_file);