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submodule-config: pass repo upon blob config read 

When reading the config of a submodule, if reading from a blob, read
using an explicitly specified repository instead of by adding the
submodule's ODB as an alternate and then reading an object from
the_repository.

This makes the "grep --recurse-submodules with submodules without
.gitmodules in the working tree" test in t7814 work when
GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB is true.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Reviewed-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Jonathan Tan 2021-08-16 14:09:57 -07:00 committed by Junio C Hamano
parent 0693806bf8
commit e3e8bf046e
3 changed files with 19 additions and 9 deletions
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20
config.c
View File

@ -1796,6 +1796,7 @@ int git_config_from_mem(config_fn_t fn,

int git_config_from_blob_oid(config_fn_t fn,
const char *name,
struct repository *repo,
const struct object_id *oid,
void *data)
{
@ -1804,7 +1805,7 @@ int git_config_from_blob_oid(config_fn_t fn,
unsigned long size;
int ret;

buf = read_object_file(oid, &type, &size);
buf = repo_read_object_file(repo, oid, &type, &size);
if (!buf)
return error(_("unable to load config blob object '%s'"), name);
if (type != OBJ_BLOB) {
@ -1820,14 +1821,15 @@ int git_config_from_blob_oid(config_fn_t fn,
}

static int git_config_from_blob_ref(config_fn_t fn,
struct repository *repo,
const char *name,
void *data)
{
struct object_id oid;

if (get_oid(name, &oid) < 0)
if (repo_get_oid(repo, name, &oid) < 0)
return error(_("unable to resolve config blob '%s'"), name);
return git_config_from_blob_oid(fn, name, &oid, data);
return git_config_from_blob_oid(fn, name, repo, &oid, data);
}

char *git_system_config(void)
@ -1958,12 +1960,16 @@ int config_with_options(config_fn_t fn, void *data,
* If we have a specific filename, use it. Otherwise, follow the
* regular lookup sequence.
*/
if (config_source && config_source->use_stdin)
if (config_source && config_source->use_stdin) {
return git_config_from_stdin(fn, data);
else if (config_source && config_source->file)
} else if (config_source && config_source->file) {
return git_config_from_file(fn, config_source->file, data);
else if (config_source && config_source->blob)
return git_config_from_blob_ref(fn, config_source->blob, data);
} else if (config_source && config_source->blob) {
struct repository *repo = config_source->repo ?
config_source->repo : the_repository;
return git_config_from_blob_ref(fn, repo, config_source->blob,
data);
}

return do_git_config_sequence(opts, fn, data);
}

3
config.h
View File

@ -49,6 +49,8 @@ const char *config_scope_name(enum config_scope scope);
struct git_config_source {
unsigned int use_stdin:1;
const char *file;
/* The repository if blob is not NULL; leave blank for the_repository */
struct repository *repo;
const char *blob;
enum config_scope scope;
};
@ -136,6 +138,7 @@ int git_config_from_mem(config_fn_t fn,
const char *buf, size_t len,
void *data, const struct config_options *opts);
int git_config_from_blob_oid(config_fn_t fn, const char *name,
struct repository *repo,
const struct object_id *oid, void *data);
void git_config_push_parameter(const char *text);
void git_config_push_env(const char *spec);

5
submodule-config.c
View File

@ -649,9 +649,10 @@ static void config_from_gitmodules(config_fn_t fn, struct repository *repo, void
config_source.file = file;
} else if (repo_get_oid(repo, GITMODULES_INDEX, &oid) >= 0 ||
repo_get_oid(repo, GITMODULES_HEAD, &oid) >= 0) {
config_source.repo = repo;
config_source.blob = oidstr = xstrdup(oid_to_hex(&oid));
if (repo != the_repository)
add_to_alternates_memory(repo->objects->odb->path);
add_submodule_odb_by_path(repo->objects->odb->path);
} else {
goto out;
}
@ -702,7 +703,7 @@ void gitmodules_config_oid(const struct object_id *commit_oid)

if (gitmodule_oid_from_commit(commit_oid, &oid, &rev)) {
git_config_from_blob_oid(gitmodules_cb, rev.buf,
&oid, the_repository);
the_repository, &oid, the_repository);
}
strbuf_release(&rev);