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Merge branch 'eb/hash-transition'

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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
parent c75fd8d815 7673ecd2dc
commit 1002f28a52
62 changed files with 1880 additions and 385 deletions
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18
builtin/fast-import.c
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@ -1236,20 +1236,6 @@ static void *gfi_unpack_entry(
return unpack_entry(the_repository, p, oe->idx.offset, &type, sizep);
}
static const char *get_mode(const char *str, uint16_t *modep)
{
unsigned char c;
uint16_t mode = 0;
while ((c = *str++) != ' ') {
if (c < '0' || c > '7')
return NULL;
mode = (mode << 3) + (c - '0');
}
*modep = mode;
return str;
}
static void load_tree(struct tree_entry *root)
{
struct object_id *oid = &root->versions[1].oid;
@ -1287,7 +1273,7 @@ static void load_tree(struct tree_entry *root)
t->entries[t->entry_count++] = e;
e->tree = NULL;
c = get_mode(c, &e->versions[1].mode);
c = parse_mode(c, &e->versions[1].mode);
if (!c)
die("Corrupt mode in %s", oid_to_hex(oid));
e->versions[0].mode = e->versions[1].mode;
@ -2280,7 +2266,7 @@ static void file_change_m(const char *p, struct branch *b)
struct object_id oid;
uint16_t mode, inline_data = 0;
p = get_mode(p, &mode);
p = parse_mode(p, &mode);
if (!p)
die("Corrupt mode: %s", command_buf.buf);
switch (mode) {