setup: defer object database creation
In a subsequent commit we'll make the creation of the on-disk data structures of an object database pluggable. This will lead to an in-between state where we have already configured the repository's object database, but it's not usable yet until we eventually call `create_object_directory()`. Defer the object database creation so that we handle both steps in the same function. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Patrick Steinhardt committed
Jul 24, 2026 at 05:48 UTC
cc0a909026a26b5e10cf7283084b9dde102dfc46
2 files changed
+36
-8
setup.c
+27
-8
index 825572f5f1..a7b1b9eaef 100644
--- a/setup.c
+++ b/setup.c
@@ -1760,6 +1760,13 @@ enum discovery_result discover_git_directory_reason(struct strbuf *commondir,
return result;
}
+static void get_object_directories(char **object_directory,
+ char **alternate_object_directories)
+{
+ *object_directory = xstrdup_or_null(getenv(DB_ENVIRONMENT));
+ *alternate_object_directories = xstrdup_or_null(getenv(ALTERNATE_DB_ENVIRONMENT));
+}
+
int apply_repository_format(struct repository *repo,
const struct repository_format *format,
enum apply_repository_format_flags flags,
@@ -1779,8 +1786,9 @@ int apply_repository_format(struct repository *repo,
if (flags & APPLY_REPOSITORY_FORMAT_HONOR_ENV) {
const char *shallow_file;
- object_directory = xstrdup_or_null(getenv(DB_ENVIRONMENT));
- alternate_object_directories = xstrdup_or_null(getenv(ALTERNATE_DB_ENVIRONMENT));
+ get_object_directories(&object_directory,
+ &alternate_object_directories);
+
shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT);
if (shallow_file)
set_alternate_shallow_file(repo, shallow_file);
@@ -1803,8 +1811,9 @@ int apply_repository_format(struct repository *repo,
repo->repository_format_precious_objects =
format->precious_objects;
- repo->objects = odb_new(repo, object_directory,
- alternate_object_directories);
+ if (!(flags & APPLY_REPOSITORY_FORMAT_SKIP_ODB_CREATION))
+ repo->objects = odb_new(repo, object_directory,
+ alternate_object_directories);
free(alternate_object_directories);
free(object_directory);
@@ -2654,11 +2663,16 @@ static int create_default_files(struct repository *repo,
return reinit;
}
-static void create_object_directory(struct repository *repo)
+static void create_object_database(struct repository *repo)
{
+ char *object_directory, *alternate_object_directories;
struct strbuf path = STRBUF_INIT;
size_t baselen;
+ get_object_directories(&object_directory, &alternate_object_directories);
+ repo->objects = odb_new(repo, object_directory,
+ alternate_object_directories);
+
strbuf_addstr(&path, repo_get_object_directory(repo));
baselen = path.len;
@@ -2672,6 +2686,8 @@ static void create_object_directory(struct repository *repo)
strbuf_addstr(&path, "/info");
safe_create_dir(repo, path.buf, 1);
+ free(alternate_object_directories);
+ free(object_directory);
strbuf_release(&path);
}
@@ -2867,9 +2883,10 @@ int init_db(struct repository *repo,
*/
read_and_verify_repository_format(&repo_fmt, repo_get_git_dir(repo), NULL);
repository_format_configure(&repo_fmt, hash, ref_storage_format);
- if (apply_repository_format(repo, &repo_fmt, APPLY_REPOSITORY_FORMAT_HONOR_ENV, &err) < 0)
+ if (apply_repository_format(repo, &repo_fmt,
+ APPLY_REPOSITORY_FORMAT_HONOR_ENV |
+ APPLY_REPOSITORY_FORMAT_SKIP_ODB_CREATION, &err) < 0)
die("%s", err.buf);
- startup_info->have_repository = 1;
/*
* Ensure `core.hidedotfiles` is processed. This must happen after we
@@ -2885,7 +2902,9 @@ int init_db(struct repository *repo,
if (!(flags & INIT_DB_SKIP_REFDB))
create_reference_database(repo, initial_branch, flags & INIT_DB_QUIET);
- create_object_directory(repo);
+ create_object_database(repo);
+
+ startup_info->have_repository = 1;
if (repo_settings_get_shared_repository(repo)) {
char buf[10];
setup.h
+9
index 654f10e059..e55d647b70 100644
--- a/setup.h
+++ b/setup.h
@@ -241,6 +241,15 @@ enum apply_repository_format_flags {
* relate to the object database.
*/
APPLY_REPOSITORY_FORMAT_HONOR_ENV = (1 << 0),
+
+ /*
+ * Usually, the object database is created after the repository format
+ * was applied. This step is skipped if this flag is set, which leaves
+ * us with a partially-working repository.
+ *
+ * This is useful when initializing a new repository.
+ */
+ APPLY_REPOSITORY_FORMAT_SKIP_ODB_CREATION = (1 << 1),
};
/*