From 841a03b4046ab81276743b4d7e727b1658f805da Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Tue, 1 Jul 2025 14:22:29 +0200 Subject: [PATCH] odb: rename `read_object_with_reference()` Rename `read_object_with_reference()` to `odb_read_object_peeled()` to match other functions related to the object database and our modern coding guidelines. Furthermore though, the old name didn't really describe very well what this function actually does, which is to walk down any commit and tag objects until an object of the required type has been found. This is generally referred to as "peeling", so the new name should be way more descriptive. No compatibility wrapper is introduced as the function is not used a lot throughout our codebase. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano --- Documentation/user-manual.adoc | 4 ++-- builtin/cat-file.c | 4 ++-- builtin/fast-import.c | 19 ++++++++----------- builtin/grep.c | 9 +++------ builtin/pack-objects.c | 4 ++-- odb.c | 17 +++++++++-------- odb.h | 15 +++++++-------- tree-walk.c | 10 ++++------ 8 files changed, 37 insertions(+), 45 deletions(-) diff --git a/Documentation/user-manual.adoc b/Documentation/user-manual.adoc index d2b478ad23..e86b2ad9f8 100644 --- a/Documentation/user-manual.adoc +++ b/Documentation/user-manual.adoc @@ -4301,11 +4301,11 @@ Now, for the meat: ----------------------------------------------------------------------------- case 0: - buf = read_object_with_reference(sha1, argv[1], &size, NULL); + buf = odb_read_object_peeled(r->objects, sha1, argv[1], &size, NULL); ----------------------------------------------------------------------------- This is how you read a blob (actually, not only a blob, but any type of -object). To know how the function `read_object_with_reference()` actually +object). To know how the function `odb_read_object_peeled()` actually works, find the source code for it (something like `git grep read_object_with | grep ":[a-z]"` in the Git repository), and read the source. diff --git a/builtin/cat-file.c b/builtin/cat-file.c index 01672ec74b..08afecbf57 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -246,8 +246,8 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name) * fall-back to the usual case. */ } - buf = read_object_with_reference(the_repository, &oid, - exp_type_id, &size, NULL); + buf = odb_read_object_peeled(the_repository->objects, &oid, + exp_type_id, &size, NULL); if (use_mailmap) { size_t s = size; diff --git a/builtin/fast-import.c b/builtin/fast-import.c index 1973c504e2..b1389c5921 100644 --- a/builtin/fast-import.c +++ b/builtin/fast-import.c @@ -2535,10 +2535,9 @@ static void note_change_n(const char *p, struct branch *b, unsigned char *old_fa oidcpy(&commit_oid, &commit_oe->idx.oid); } else if (!repo_get_oid(the_repository, p, &commit_oid)) { unsigned long size; - char *buf = read_object_with_reference(the_repository, - &commit_oid, - OBJ_COMMIT, &size, - &commit_oid); + char *buf = odb_read_object_peeled(the_repository->objects, + &commit_oid, OBJ_COMMIT, &size, + &commit_oid); if (!buf || size < the_hash_algo->hexsz + 6) die("Not a valid commit: %s", p); free(buf); @@ -2604,9 +2603,8 @@ static void parse_from_existing(struct branch *b) unsigned long size; char *buf; - buf = read_object_with_reference(the_repository, - &b->oid, OBJ_COMMIT, &size, - &b->oid); + buf = odb_read_object_peeled(the_repository->objects, &b->oid, + OBJ_COMMIT, &size, &b->oid); parse_from_commit(b, buf, size); free(buf); } @@ -2699,10 +2697,9 @@ static struct hash_list *parse_merge(unsigned int *count) oidcpy(&n->oid, &oe->idx.oid); } else if (!repo_get_oid(the_repository, from, &n->oid)) { unsigned long size; - char *buf = read_object_with_reference(the_repository, - &n->oid, - OBJ_COMMIT, - &size, &n->oid); + char *buf = odb_read_object_peeled(the_repository->objects, + &n->oid, OBJ_COMMIT, + &size, &n->oid); if (!buf || size < the_hash_algo->hexsz + 6) die("Not a valid commit: %s", from); free(buf); diff --git a/builtin/grep.c b/builtin/grep.c index 5de61dfffe..39273d9c0f 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -522,9 +522,7 @@ static int grep_submodule(struct grep_opt *opt, obj_read_lock(); object_type = odb_read_object_info(subrepo->objects, oid, NULL); obj_read_unlock(); - data = read_object_with_reference(subrepo, - oid, OBJ_TREE, - &size, NULL); + data = odb_read_object_peeled(subrepo->objects, oid, OBJ_TREE, &size, NULL); if (!data) die(_("unable to read tree (%s)"), oid_to_hex(oid)); @@ -705,9 +703,8 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec, struct strbuf base; int hit, len; - data = read_object_with_reference(opt->repo, - &obj->oid, OBJ_TREE, - &size, NULL); + data = odb_read_object_peeled(opt->repo->objects, &obj->oid, + OBJ_TREE, &size, NULL); if (!data) die(_("unable to read tree (%s)"), oid_to_hex(&obj->oid)); diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c index 06bdeb4223..e88a13dbb9 100644 --- a/builtin/pack-objects.c +++ b/builtin/pack-objects.c @@ -2055,8 +2055,8 @@ static void add_preferred_base(struct object_id *oid) if (window <= num_preferred_base++) return; - data = read_object_with_reference(the_repository, oid, - OBJ_TREE, &size, &tree_oid); + data = odb_read_object_peeled(the_repository->objects, oid, + OBJ_TREE, &size, &tree_oid); if (!data) return; diff --git a/odb.c b/odb.c index 217903d7b1..1f48a0448e 100644 --- a/odb.c +++ b/odb.c @@ -905,11 +905,11 @@ void *odb_read_object(struct object_database *odb, return data; } -void *read_object_with_reference(struct repository *r, - const struct object_id *oid, - enum object_type required_type, - unsigned long *size, - struct object_id *actual_oid_return) +void *odb_read_object_peeled(struct object_database *odb, + const struct object_id *oid, + enum object_type required_type, + unsigned long *size, + struct object_id *actual_oid_return) { enum object_type type; void *buffer; @@ -921,7 +921,7 @@ void *read_object_with_reference(struct repository *r, int ref_length = -1; const char *ref_type = NULL; - buffer = odb_read_object(r->objects, &actual_oid, &type, &isize); + buffer = odb_read_object(odb, &actual_oid, &type, &isize); if (!buffer) return NULL; if (type == required_type) { @@ -941,9 +941,10 @@ void *read_object_with_reference(struct repository *r, } ref_length = strlen(ref_type); - if (ref_length + r->hash_algo->hexsz > isize || + if (ref_length + odb->repo->hash_algo->hexsz > isize || memcmp(buffer, ref_type, ref_length) || - get_oid_hex_algop((char *) buffer + ref_length, &actual_oid, r->hash_algo)) { + get_oid_hex_algop((char *) buffer + ref_length, &actual_oid, + odb->repo->hash_algo)) { free(buffer); return NULL; } diff --git a/odb.h b/odb.h index e4c51f8c38..e922f25680 100644 --- a/odb.h +++ b/odb.h @@ -274,6 +274,12 @@ void *odb_read_object(struct object_database *odb, enum object_type *type, unsigned long *size); +void *odb_read_object_peeled(struct object_database *odb, + const struct object_id *oid, + enum object_type required_type, + unsigned long *size, + struct object_id *oid_ret); + /* * Add an object file to the in-memory object store, without writing it * to disk. @@ -382,7 +388,7 @@ void odb_assert_oid_type(struct object_database *odb, /* * Enabling the object read lock allows multiple threads to safely call the * following functions in parallel: odb_read_object(), - * read_object_with_reference(), odb_read_object_info() and odb(). + * odb_read_object_peeled(), odb_read_object_info() and odb(). * * obj_read_lock() and obj_read_unlock() may also be used to protect other * section which cannot execute in parallel with object reading. Since the used @@ -431,13 +437,6 @@ enum for_each_object_flags { FOR_EACH_OBJECT_SKIP_ON_DISK_KEPT_PACKS = (1<<4), }; - -void *read_object_with_reference(struct repository *r, - const struct object_id *oid, - enum object_type required_type, - unsigned long *size, - struct object_id *oid_ret); - /* Compatibility wrappers, to be removed once Git 2.51 has been released. */ #include "repository.h" diff --git a/tree-walk.c b/tree-walk.c index 766af99f46..e449a1320e 100644 --- a/tree-walk.c +++ b/tree-walk.c @@ -90,7 +90,7 @@ void *fill_tree_descriptor(struct repository *r, void *buf = NULL; if (oid) { - buf = read_object_with_reference(r, oid, OBJ_TREE, &size, NULL); + buf = odb_read_object_peeled(r->objects, oid, OBJ_TREE, &size, NULL); if (!buf) die(_("unable to read tree (%s)"), oid_to_hex(oid)); } @@ -611,7 +611,7 @@ int get_tree_entry(struct repository *r, unsigned long size; struct object_id root; - tree = read_object_with_reference(r, tree_oid, OBJ_TREE, &size, &root); + tree = odb_read_object_peeled(r->objects, tree_oid, OBJ_TREE, &size, &root); if (!tree) return -1; @@ -681,10 +681,8 @@ enum get_oid_result get_tree_entry_follow_symlinks(struct repository *r, void *tree; struct object_id root; unsigned long size; - tree = read_object_with_reference(r, - ¤t_tree_oid, - OBJ_TREE, &size, - &root); + tree = odb_read_object_peeled(r->objects, ¤t_tree_oid, + OBJ_TREE, &size, &root); if (!tree) goto done;