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[PATCH v2 0/5] refs: reduce reliance on the_repository global state

From
Shreyansh Paliwal <shreyanshpaliwalcmsmn@gmail.com>
Date
Mar 28, 2026, 14:09 UTC
Message-ID
<20260328141146.1095115-1-shreyanshpaliwalcmsmn@gmail.com>
In-Reply-To
<20260325164833.1216577-1-shreyanshpaliwalcmsmn@gmail.com>

This series continues the effort to reduce reliance on the_repository global state by making repository context explicit across the refs subsystem. The patches focus on passing struct repository through various ref helpers and backends, and replacing uses of global state such as the_repository and the_hash_algo with the appropriate repository instance.

Patch 1/5: Making branch name helper functions (copy_branchname(), check_branch_ref(), validate_branchname(), and validate_new_branchname()) repository-aware. (built on top of jw/object-name-bitset-to-enum)

Patch 2/5: Updating get_files_ref_lock_timeout_ms() to take a repository and propagating it through files-backend, including callback paths.

Patch 3/5: Replacing uses of the_hash_algo in refs.c with the hash algorithm from the appropriate repository.

Patch 4/5: Removing remaining uses of the_repository in reftable-backend.c where a repository instance is already available.

Patch 5/5: Replacing the single instance of the_repository in packed-backend.c, thus dropping the USE_THE_REPOSITORY_VARIABLE macro.

Shreyansh Paliwal (5):
  refs: make branchname helpers repository aware
  refs: make get_files_ref_lock_timeout_ms() repostory aware
  refs: remove the_hash_algo global state
  refs/reftable-backend: drop uses of the_repository
  refs/packed-backend: use ref_store->repo instead of the_repository
 branch.c                   | 15 ++++++++-------
 branch.h                   |  5 +++--
 builtin/branch.c           | 14 +++++++-------
 builtin/check-ref-format.c |  3 ++-
 builtin/checkout.c         |  6 +++---
 builtin/merge.c            |  2 +-
 builtin/worktree.c         | 10 +++++-----
 refs.c                     | 27 ++++++++++++---------------
 refs.h                     |  4 ++--
 refs/files-backend.c       | 19 +++++++++++++------
 refs/packed-backend.c      |  3 +--
 refs/refs-internal.h       |  2 +-
 refs/reftable-backend.c    |  6 +++---
 13 files changed, 61 insertions(+), 55 deletions(-)
---
Changes in v2:
 - Made struct repository the first argument in function parameters.
Range-diff against v1:
1:  68ca12412b ! 1:  c0182252c4 refs: make branchname helpers repository aware
    @@ branch.c: int read_branch_desc(struct strbuf *buf, const char *branch_name)
       * Fill ref with the full refname for the branch.
       */
     -int validate_branchname(const char *name, struct strbuf *ref)
    -+int validate_branchname(const char *name, struct strbuf *ref, struct repository *repo)
    ++int validate_branchname(struct repository *repo, const char *name, struct strbuf *ref)
      {
     -	if (check_branch_ref(ref, name)) {
    -+	if (check_branch_ref(ref, name, repo)) {
    ++	if (check_branch_ref(repo, ref, name)) {
      		int code = die_message(_("'%s' is not a valid branch name"), name);
      		advise_if_enabled(ADVICE_REF_SYNTAX,
      				  _("See 'git help check-ref-format'"));
    @@ branch.c: const char *branch_checked_out(const char *refname)
       * Fill ref with the full refname for the branch.
       */
     -int validate_new_branchname(const char *name, struct strbuf *ref, int force)
    -+int validate_new_branchname(const char *name, struct strbuf *ref, int force,
    -+			    struct repository *repo)
    ++int validate_new_branchname(struct repository *repo, const char *name,
    ++			    struct strbuf *ref, int force)
      {
      	const char *path;
     -	if (!validate_branchname(name, ref))
    -+	if (!validate_branchname(name, ref, repo))
    ++	if (!validate_branchname(repo, name, ref))
      		return 0;
      	if (!force)
    @@ branch.c: void create_branch(struct repository *r,
      	if (clobber_head_ok ?
     -			  validate_branchname(name, &ref) :
     -			  validate_new_branchname(name, &ref, force)) {
    -+			  validate_branchname(name, &ref, r) :
    -+			  validate_new_branchname(name, &ref, force, r)) {
    ++			  validate_branchname(r, name, &ref) :
    ++			  validate_new_branchname(r, name, &ref, force)) {
      		forcing = 1;
      	}
    @@ branch.h: const char *branch_checked_out(const char *refname);
       * Fill ref with the full refname for the branch.
       */
     -int validate_branchname(const char *name, struct strbuf *ref);
    -+int validate_branchname(const char *name, struct strbuf *ref, struct repository *repo);
    ++int validate_branchname(struct repository *repo, const char *name, struct strbuf *ref);
      /*
       * Check if a branch 'name' can be created as a new branch; die otherwise.
    @@ branch.h: int validate_branchname(const char *name, struct strbuf *ref);
       * Fill ref with the full refname for the branch.
       */
     -int validate_new_branchname(const char *name, struct strbuf *ref, int force);
    -+int validate_new_branchname(const char *name, struct strbuf *ref, int force,
    -+			    struct repository *repo);
    ++int validate_new_branchname(struct repository *repo, const char *name,
    ++			    struct strbuf *ref, int force);
      /*
       * Remove information about the merge state on the current
    @@ builtin/branch.c: static int delete_branches(int argc, const char **argv, int fo
      		int flags = 0;
     -		copy_branchname(&bname, argv[i], allowed_interpret);
    -+		copy_branchname(&bname, argv[i], allowed_interpret, the_repository);
    ++		copy_branchname(the_repository, &bname, argv[i], allowed_interpret);
      		free(name);
      		name = mkpathdup(fmt, bname.buf);
    @@ builtin/branch.c: static void copy_or_rename_branch(const char *oldname, const c
      	struct worktree **worktrees = get_worktrees();
     -	if (check_branch_ref(&oldref, oldname)) {
    -+	if (check_branch_ref(&oldref, oldname, the_repository)) {
    ++	if (check_branch_ref(the_repository, &oldref, oldname)) {
      		/*
      		 * Bad name --- this could be an attempt to rename a
      		 * ref that we used to allow to be created by accident.
    @@ builtin/branch.c: static void copy_or_rename_branch(const char *oldname, const c
      	 */
      	if (!strcmp(oldname, newname))
     -		validate_branchname(newname, &newref);
    -+		validate_branchname(newname, &newref, the_repository);
    ++		validate_branchname(the_repository, newname, &newref);
      	else
     -		validate_new_branchname(newname, &newref, force);
    -+		validate_new_branchname(newname, &newref, force, the_repository);
    ++		validate_new_branchname(the_repository, newname, &newref, force);
      	reject_rebase_or_bisect_branch(worktrees, oldref.buf);
    @@ builtin/branch.c: int cmd_branch(int argc,
      			branch_name = head;
      		} else if (argc == 1) {
     -			copy_branchname(&buf, argv[0], INTERPRET_BRANCH_LOCAL);
    -+			copy_branchname(&buf, argv[0], INTERPRET_BRANCH_LOCAL, the_repository);
    ++			copy_branchname(the_repository, &buf, argv[0], INTERPRET_BRANCH_LOCAL);
      			branch_name = buf.buf;
      		} else {
      			die(_("cannot edit description of more than one branch"));
    @@ builtin/branch.c: int cmd_branch(int argc,
      			branch = branch_get(NULL);
      		else if (argc == 1) {
     -			copy_branchname(&buf, argv[0], INTERPRET_BRANCH_LOCAL);
    -+			copy_branchname(&buf, argv[0], INTERPRET_BRANCH_LOCAL, the_repository);
    ++			copy_branchname(the_repository, &buf, argv[0], INTERPRET_BRANCH_LOCAL);
      			branch = branch_get(buf.buf);
      		} else
      			die(_("too many arguments to set new upstream"));
    @@ builtin/branch.c: int cmd_branch(int argc,
      			branch = branch_get(NULL);
      		else if (argc == 1) {
     -			copy_branchname(&buf, argv[0], INTERPRET_BRANCH_LOCAL);
    -+			copy_branchname(&buf, argv[0], INTERPRET_BRANCH_LOCAL, the_repository);
    ++			copy_branchname(the_repository, &buf, argv[0], INTERPRET_BRANCH_LOCAL);
      			branch = branch_get(buf.buf);
      		} else
      			die(_("too many arguments to unset upstream"));
    @@ builtin/check-ref-format.c: static int check_ref_format_branch(const char *arg)
      	setup_git_directory_gently(&nongit);
     -	if (check_branch_ref(&sb, arg) ||
    -+	if (check_branch_ref(&sb, arg, the_repository) ||
    ++	if (check_branch_ref(the_repository, &sb, arg) ||
      	    !skip_prefix(sb.buf, "refs/heads/", &name))
      		die("'%s' is not a valid branch name", arg);
      	printf("%s\n", name);
    @@ builtin/checkout.c: static void setup_branch_path(struct branch_info *branch)
      		repo_get_oid_committish(the_repository, branch->name, &branch->oid);
     -	copy_branchname(&buf, branch->name, INTERPRET_BRANCH_LOCAL);
    -+	copy_branchname(&buf, branch->name, INTERPRET_BRANCH_LOCAL, the_repository);
    ++	copy_branchname(the_repository, &buf, branch->name, INTERPRET_BRANCH_LOCAL);
      	if (strcmp(buf.buf, branch->name)) {
      		free(branch->name);
      		branch->name = xstrdup(buf.buf);
    @@ builtin/checkout.c: static int checkout_main(int argc, const char **argv, const
      		if (opts->new_branch_force)
     -			opts->branch_exists = validate_branchname(opts->new_branch, &buf);
    -+			opts->branch_exists = validate_branchname(opts->new_branch, &buf, the_repository);
    ++			opts->branch_exists = validate_branchname(the_repository, opts->new_branch, &buf);
      		else
      			opts->branch_exists =
     -				validate_new_branchname(opts->new_branch, &buf, 0);
    -+				validate_new_branchname(opts->new_branch, &buf, 0, the_repository);
    ++				validate_new_branchname(the_repository, opts->new_branch, &buf, 0);
      		strbuf_release(&buf);
      	}
    @@ builtin/merge.c: static void merge_name(const char *remote, struct strbuf *msg)
      	int len, early;
     -	copy_branchname(&bname, remote, 0);
    -+	copy_branchname(&bname, remote, 0, the_repository);
    ++	copy_branchname(the_repository, &bname, remote, 0);
      	remote = bname.buf;
      	oidclr(&branch_head, the_repository->hash_algo);
    @@ builtin/worktree.c: static int make_worktree_orphan(const char * ref, const stru
      	struct child_process cp = CHILD_PROCESS_INIT;
     -	validate_new_branchname(ref, &symref, 0);
    -+	validate_new_branchname(ref, &symref, 0, the_repository);
    ++	validate_new_branchname(the_repository, ref, &symref, 0);
      	strvec_pushl(&cp.args, "symbolic-ref", "HEAD", symref.buf, NULL);
      	if (opts->quiet)
      		strvec_push(&cp.args, "--quiet");
    @@ builtin/worktree.c: static int add_worktree(const char *path, const char *refnam
      	/* is 'refname' a branch or commit? */
     -	if (!opts->detach && !check_branch_ref(&symref, refname) &&
    -+	if (!opts->detach && !check_branch_ref(&symref, refname, the_repository) &&
    ++	if (!opts->detach && !check_branch_ref(the_repository, &symref, refname) &&
      	    refs_ref_exists(get_main_ref_store(the_repository), symref.buf)) {
      		is_branch = 1;
      		if (!opts->force)
    @@ builtin/worktree.c: static void print_preparing_worktree_line(int detach,
      	} else {
      		struct strbuf s = STRBUF_INIT;
     -		if (!detach && !check_branch_ref(&s, branch) &&
    -+		if (!detach && !check_branch_ref(&s, branch, the_repository) &&
    ++		if (!detach && !check_branch_ref(the_repository, &s, branch) &&
      		    refs_ref_exists(get_main_ref_store(the_repository), s.buf))
      			fprintf_ln(stderr, _("Preparing worktree (checking out '%s')"),
      				  branch);
    @@ builtin/worktree.c: static char *dwim_branch(const char *path, char **new_branch
      	struct strbuf ref = STRBUF_INIT;
     -	branch_exists = !check_branch_ref(&ref, branchname) &&
    -+	branch_exists = !check_branch_ref(&ref, branchname, the_repository) &&
    ++	branch_exists = !check_branch_ref(the_repository, &ref, branchname) &&
      			refs_ref_exists(get_main_ref_store(the_repository),
      					ref.buf);
      	strbuf_release(&ref);
    @@ builtin/worktree.c: static int add(int ac, const char **av, const char *prefix,
      		if (!opts.force &&
     -		    !check_branch_ref(&symref, new_branch) &&
    -+		    !check_branch_ref(&symref, new_branch, the_repository) &&
    ++		    !check_branch_ref(the_repository, &symref, new_branch) &&
      		    refs_ref_exists(get_main_ref_store(the_repository), symref.buf))
      			die_if_checked_out(symref.buf, 0);
      		strbuf_release(&symref);
      ## refs.c ##
     @@ refs.c: static char *substitute_branch_name(struct repository *r,
    + 	return NULL;
      }
    - void copy_branchname(struct strbuf *sb, const char *name,
    --		     enum interpret_branch_kind allowed)
    -+		     enum interpret_branch_kind allowed,
    -+		     struct repository *repo)
    +-void copy_branchname(struct strbuf *sb, const char *name,
    ++void copy_branchname(struct repository *repo, struct strbuf *sb, const char *name,
    + 		     enum interpret_branch_kind allowed)
      {
      	int len = strlen(name);
      	struct interpret_branch_name_options options = {
    @@ refs.c: void copy_branchname(struct strbuf *sb, const char *name,
      }
     -int check_branch_ref(struct strbuf *sb, const char *name)
    -+int check_branch_ref(struct strbuf *sb, const char *name, struct repository *repo)
    ++int check_branch_ref(struct repository *repo, struct strbuf *sb, const char *name)
      {
      	if (startup_info->have_repository)
     -		copy_branchname(sb, name, INTERPRET_BRANCH_LOCAL);
    -+		copy_branchname(sb, name, INTERPRET_BRANCH_LOCAL, repo);
    ++		copy_branchname(repo, sb, name, INTERPRET_BRANCH_LOCAL);
      	else
      		strbuf_addstr(sb, name);
      ## refs.h ##
     @@ refs.h: char *repo_default_branch_name(struct repository *r, int quiet);
    +  * If "allowed" is non-zero, restrict the set of allowed expansions. See
       * repo_interpret_branch_name() for details.
       */
    - void copy_branchname(struct strbuf *sb, const char *name,
    --		     enum interpret_branch_kind allowed);
    -+		     enum interpret_branch_kind allowed,
    -+		     struct repository *repo);
    +-void copy_branchname(struct strbuf *sb, const char *name,
    ++void copy_branchname(struct repository *repo, struct strbuf *sb, const char *name,
    + 		     enum interpret_branch_kind allowed);
      /*
    -  * Like copy_branchname() above, but confirm that the result is
     @@ refs.h: void copy_branchname(struct strbuf *sb, const char *name,
       *
       * The return value is "0" if the result is valid, and "-1" otherwise.
       */
     -int check_branch_ref(struct strbuf *sb, const char *name);
    -+int check_branch_ref(struct strbuf *sb, const char *name, struct repository *repo);
    ++int check_branch_ref(struct repository *repo, struct strbuf *sb, const char *name);
      /*
       * Similar for a tag name in refs/tags/.
2:  9bfbfc38b8 = 2:  857a8c40fe refs: make get_files_ref_lock_timeout_ms() repostory aware
3:  6f9854845e = 3:  46d5272aec refs: remove the_hash_algo global state
4:  1c02f780d1 = 4:  11aa886259 refs/reftable-backend: drop uses of the_repository
5:  33946503e1 = 5:  c763732964 refs/packed-backend: use ref_store->repo instead of the_repository
--
2.53.0
Previous: Shreyansh PaliwalNext: Shreyansh Paliwal
Message 13 of 48 in “refs: reduce reliance on the_repository global state”
  1. 0/5 refs: reduce reliance on the_repository global stateShreyansh Paliwal, Mar 25, 2026
  2. 1/5 refs: make branchname helpers repository awareShreyansh Paliwal, Mar 25, 2026
  3. Patrick SteinhardtMar 27, 2026
  4. Shreyansh PaliwalMar 28, 2026
  5. 2/5 refs: make get_files_ref_lock_timeout_ms() repostory awareShreyansh Paliwal, Mar 25, 2026
  6. Patrick SteinhardtMar 27, 2026
  7. Burak Kaan KaraçayMar 27, 2026
  8. Shreyansh PaliwalMar 28, 2026
  9. 3/5 refs: remove the_hash_algo global stateShreyansh Paliwal, Mar 25, 2026
  10. 4/5 refs/reftable-backend: drop uses of the_repositoryShreyansh Paliwal, Mar 25, 2026
  11. Patrick SteinhardtMar 27, 2026
  12. 5/5 refs/packed-backend: use ref_store->repo instead of the_repositoryShreyansh Paliwal, Mar 25, 2026
  13. 0/5 refs: reduce reliance on the_repository global stateShreyansh Paliwal, Mar 28, 2026
  14. 1/5 refs: make branchname helpers repository awareShreyansh Paliwal, Mar 28, 2026
  15. Tian YuchenMar 28, 2026
  16. Shreyansh PaliwalMar 29, 2026
  17. Tian YuchenMar 29, 2026
  18. 2/5 refs: make get_files_ref_lock_timeout_ms() repostory awareShreyansh Paliwal, Mar 28, 2026
  19. 3/5 refs: remove the_hash_algo global stateShreyansh Paliwal, Mar 28, 2026
  20. Tian YuchenMar 28, 2026
  21. 4/5 refs/reftable-backend: drop uses of the_repositoryShreyansh Paliwal, Mar 28, 2026
  22. 5/5 refs/packed-backend: use ref_store->repo instead of the_repositoryShreyansh Paliwal, Mar 28, 2026
  23. Tian YuchenMar 28, 2026
  24. Shreyansh PaliwalMar 29, 2026
  25. 0/5 replace the_repository with local repository instancesShreyansh Paliwal, Mar 29, 2026
  26. 1/5 refs: add struct repository parameter to branchname helpersShreyansh Paliwal, Mar 29, 2026
  27. Patrick SteinhardtApr 2, 2026
  28. Burak Kaan KaraçayApr 2, 2026
  29. Tian YuchenApr 2, 2026
  30. Patrick SteinhardtApr 2, 2026
  31. Shreyansh PaliwalApr 3, 2026
  32. 2/5 refs: add struct repository parameter in get_files_ref_lock_timeout_ms()Shreyansh Paliwal, Mar 29, 2026
  33. 3/5 refs: remove the_hash_algo global stateShreyansh Paliwal, Mar 29, 2026
  34. 4/5 refs/reftable-backend: drop uses of the_repositoryShreyansh Paliwal, Mar 29, 2026
  35. Patrick SteinhardtApr 2, 2026
  36. Shreyansh PaliwalApr 3, 2026
  37. 5/5 refs/packed-backend: use ref_store->repo instead of the_repositoryShreyansh Paliwal, Mar 29, 2026
  38. 0/3 refs: reduce reliance on global stateShreyansh Paliwal, Apr 3, 2026
  39. 1/3 refs: add struct repository parameter in get_files_ref_lock_timeout_ms()Shreyansh Paliwal, Apr 3, 2026
  40. Tian YuchenApr 3, 2026
  41. 2/3 refs: remove the_hash_algo global stateShreyansh Paliwal, Apr 3, 2026
  42. 3/3 refs/reftable-backend: drop uses of the_repositoryShreyansh Paliwal, Apr 3, 2026
  43. 0/3 refs: reduce reliance on global stateShreyansh Paliwal, Apr 4, 2026
  44. 1/3 refs: add struct repository parameter in get_files_ref_lock_timeout_ms()Shreyansh Paliwal, Apr 4, 2026
  45. 2/3 refs: remove the_hash_algo global stateShreyansh Paliwal, Apr 4, 2026
  46. 3/3 refs/reftable-backend: drop uses of the_repositoryShreyansh Paliwal, Apr 4, 2026
  47. Patrick SteinhardtApr 8, 2026
  48. Junio C HamanoApr 8, 2026

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