25 files changed, 101 insertions, 77 deletions
diff --git a/builtin/am.c b/builtin/am.c
index d8875ad402..5498ddeb6a 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1544,7 +1544,8 @@ static int run_apply(const struct am_state *state, const char *index_file)
 	if (index_file) {
 		/* Reload index as apply_all_patches() will have modified it. */
 		discard_index(the_repository->index);
-		read_index_from(the_repository->index, index_file, get_git_dir());
+		read_index_from(the_repository->index, index_file,
+				repo_get_git_dir(the_repository));
 	}
 
 	return 0;
@@ -1587,7 +1588,7 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
 		return error("could not build fake ancestor");
 
 	discard_index(the_repository->index);
-	read_index_from(the_repository->index, index_path, get_git_dir());
+	read_index_from(the_repository->index, index_path, repo_get_git_dir(the_repository));
 
 	if (write_index_as_tree(&bases[0], the_repository->index, index_path, 0, NULL))
 		return error(_("Repository lacks necessary blobs to fall back on 3-way merge."));
@@ -1667,7 +1668,9 @@ static void do_commit(const struct am_state *state)
 	if (!state->no_verify && run_hooks(the_repository, "pre-applypatch"))
 		exit(1);
 
-	if (write_index_as_tree(&tree, the_repository->index, get_index_file(), 0, NULL))
+	if (write_index_as_tree(&tree, the_repository->index,
+				repo_get_index_file(the_repository),
+				0, NULL))
 		die(_("git write-tree failed to write a tree"));
 
 	if (!repo_get_oid_commit(the_repository, "HEAD", &parent)) {
@@ -2077,7 +2080,9 @@ static int clean_index(const struct object_id *head, const struct object_id *rem
 	if (fast_forward_to(head_tree, head_tree, 1))
 		return -1;
 
-	if (write_index_as_tree(&index, the_repository->index, get_index_file(), 0, NULL))
+	if (write_index_as_tree(&index, the_repository->index,
+				repo_get_index_file(the_repository),
+				0, NULL))
 		return -1;
 
 	index_tree = parse_tree_indirect(&index);
diff --git a/builtin/blame.c b/builtin/blame.c
index 35e975fb13..1ffdda5090 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -1081,7 +1081,7 @@ parse_done:
 			path = add_prefix(prefix, argv[1]);
 			argv[1] = argv[2];
 		} else {	/* (2a) */
-			if (argc == 2 && is_a_rev(argv[1]) && !get_git_work_tree())
+			if (argc == 2 && is_a_rev(argv[1]) && !repo_get_work_tree(the_repository))
 				die("missing <path> to blame");
 			path = add_prefix(prefix, argv[argc - 1]);
 		}
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 4cfe6fab50..7e18b87c7a 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -23,6 +23,7 @@
 #include "read-cache.h"
 #include "refs.h"
 #include "remote.h"
+#include "repo-settings.h"
 #include "resolve-undo.h"
 #include "revision.h"
 #include "setup.h"
@@ -950,11 +951,13 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
 	const char *old_desc, *reflog_msg;
 	if (opts->new_branch) {
 		if (opts->new_orphan_branch) {
+			enum log_refs_config log_all_ref_updates =
+				repo_settings_get_log_all_ref_updates(the_repository);
 			char *refname;
 
 			refname = mkpathdup("refs/heads/%s", opts->new_orphan_branch);
 			if (opts->new_branch_log &&
-			    !should_autocreate_reflog(refname)) {
+			    !should_autocreate_reflog(log_all_ref_updates, refname)) {
 				int ret;
 				struct strbuf err = STRBUF_INIT;
 
diff --git a/builtin/commit-graph.c b/builtin/commit-graph.c
index 7102ee90a0..7411e6244f 100644
--- a/builtin/commit-graph.c
+++ b/builtin/commit-graph.c
@@ -1,7 +1,6 @@
 #include "builtin.h"
 #include "commit.h"
 #include "config.h"
-#include "environment.h"
 #include "gettext.h"
 #include "hex.h"
 #include "parse-options.h"
@@ -95,7 +94,7 @@ static int graph_verify(int argc, const char **argv, const char *prefix)
 		usage_with_options(builtin_commit_graph_verify_usage, options);
 
 	if (!opts.obj_dir)
-		opts.obj_dir = get_object_directory();
+		opts.obj_dir = repo_get_object_directory(the_repository);
 	if (opts.shallow)
 		flags |= COMMIT_GRAPH_VERIFY_SHALLOW;
 	if (opts.progress)
@@ -275,7 +274,7 @@ static int graph_write(int argc, const char **argv, const char *prefix)
 	if (opts.reachable + opts.stdin_packs + opts.stdin_commits > 1)
 		die(_("use at most one of --reachable, --stdin-commits, or --stdin-packs"));
 	if (!opts.obj_dir)
-		opts.obj_dir = get_object_directory();
+		opts.obj_dir = repo_get_object_directory(the_repository);
 	if (opts.append)
 		flags |= COMMIT_GRAPH_WRITE_APPEND;
 	if (opts.split)
diff --git a/builtin/commit.c b/builtin/commit.c
index b2033c4887..b09320f907 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -26,6 +26,7 @@
 #include "path.h"
 #include "preload-index.h"
 #include "read-cache.h"
+#include "repository.h"
 #include "string-list.h"
 #include "rerere.h"
 #include "unpack-trees.h"
@@ -407,7 +408,7 @@ static const char *prepare_index(const char **argv, const char *prefix,
 
 		discard_index(the_repository->index);
 		read_index_from(the_repository->index, get_lock_file_path(&index_lock),
-				get_git_dir());
+				repo_get_git_dir(the_repository));
 		if (cache_tree_update(the_repository->index, WRITE_TREE_SILENT) == 0) {
 			if (reopen_lock_file(&index_lock) < 0)
 				die(_("unable to write index file"));
@@ -472,7 +473,7 @@ static const char *prepare_index(const char **argv, const char *prefix,
 				       COMMIT_LOCK | SKIP_IF_UNCHANGED))
 			die(_("unable to write new index file"));
 		commit_style = COMMIT_AS_IS;
-		ret = get_index_file();
+		ret = repo_get_index_file(the_repository);
 		goto out;
 	}
 
@@ -534,7 +535,7 @@ static const char *prepare_index(const char **argv, const char *prefix,
 
 	discard_index(the_repository->index);
 	ret = get_lock_file_path(&false_lock);
-	read_index_from(the_repository->index, ret, get_git_dir());
+	read_index_from(the_repository->index, ret, repo_get_git_dir(the_repository));
 out:
 	string_list_clear(&partial, 0);
 	clear_pathspec(&pathspec);
@@ -1072,7 +1073,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
 		 */
 		discard_index(the_repository->index);
 	}
-	read_index_from(the_repository->index, index_file, get_git_dir());
+	read_index_from(the_repository->index, index_file, repo_get_git_dir(the_repository));
 
 	if (cache_tree_update(the_repository->index, 0)) {
 		error(_("Error building trees"));
@@ -1873,8 +1874,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 
 	repo_rerere(the_repository, 0);
 	run_auto_maintenance(quiet);
-	run_commit_hook(use_editor, get_index_file(), NULL, "post-commit",
-			NULL);
+	run_commit_hook(use_editor, repo_get_index_file(the_repository),
+			NULL, "post-commit", NULL);
 	if (amend && !no_post_rewrite) {
 		commit_post_rewrite(the_repository, current_head, &oid);
 	}
diff --git a/builtin/config.c b/builtin/config.c
index 95c8a00915..596a01c788 100644
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -807,8 +807,8 @@ static void location_options_init(struct config_location_options *opts,
 	else
 		opts->options.respect_includes = opts->respect_includes_opt;
 	if (startup_info->have_repository) {
-		opts->options.commondir = get_git_common_dir();
-		opts->options.git_dir = get_git_dir();
+		opts->options.commondir = repo_get_common_dir(the_repository);
+		opts->options.git_dir = repo_get_git_dir(the_repository);
 	}
 }
 
diff --git a/builtin/count-objects.c b/builtin/count-objects.c
index ec6098a149..42275f62d5 100644
--- a/builtin/count-objects.c
+++ b/builtin/count-objects.c
@@ -7,7 +7,6 @@
 #include "builtin.h"
 #include "config.h"
 #include "dir.h"
-#include "environment.h"
 #include "gettext.h"
 #include "path.h"
 #include "repository.h"
@@ -116,7 +115,7 @@ int cmd_count_objects(int argc, const char **argv, const char *prefix)
 		report_linked_checkout_garbage(the_repository);
 	}
 
-	for_each_loose_file_in_objdir(get_object_directory(),
+	for_each_loose_file_in_objdir(repo_get_object_directory(the_repository),
 				      count_loose, count_cruft, NULL, NULL);
 
 	if (verbose) {
diff --git a/builtin/difftool.c b/builtin/difftool.c
index dcc68e190c..7f2cbd797a 100644
--- a/builtin/difftool.c
+++ b/builtin/difftool.c
@@ -22,6 +22,7 @@
 #include "hex.h"
 #include "parse-options.h"
 #include "read-cache-ll.h"
+#include "repository.h"
 #include "sparse-index.h"
 #include "strvec.h"
 #include "strbuf.h"
@@ -214,7 +215,7 @@ static void changed_files(struct hashmap *result, const char *index_path,
 	struct child_process update_index = CHILD_PROCESS_INIT;
 	struct child_process diff_files = CHILD_PROCESS_INIT;
 	struct strbuf buf = STRBUF_INIT;
-	const char *git_dir = absolute_path(get_git_dir());
+	const char *git_dir = absolute_path(repo_get_git_dir(the_repository));
 	FILE *fp;
 
 	strvec_pushl(&update_index.args,
@@ -377,7 +378,7 @@ static int run_dir_diff(const char *extcmd, int symlinks, const char *prefix,
 	struct hashmap wt_modified, tmp_modified;
 	int indices_loaded = 0;
 
-	workdir = get_git_work_tree();
+	workdir = repo_get_work_tree(the_repository);
 
 	/* Setup temp directories */
 	tmp = getenv("TMPDIR");
@@ -737,8 +738,8 @@ int cmd_difftool(int argc, const char **argv, const char *prefix)
 
 	if (!no_index){
 		setup_work_tree();
-		setenv(GIT_DIR_ENVIRONMENT, absolute_path(get_git_dir()), 1);
-		setenv(GIT_WORK_TREE_ENVIRONMENT, absolute_path(get_git_work_tree()), 1);
+		setenv(GIT_DIR_ENVIRONMENT, absolute_path(repo_get_git_dir(the_repository)), 1);
+		setenv(GIT_WORK_TREE_ENVIRONMENT, absolute_path(repo_get_work_tree(the_repository)), 1);
 	} else if (dir_diff)
 		die(_("options '%s' and '%s' cannot be used together"), "--dir-diff", "--no-index");
 
diff --git a/builtin/fsmonitor--daemon.c b/builtin/fsmonitor--daemon.c
index 1593713f4c..25451d999e 100644
--- a/builtin/fsmonitor--daemon.c
+++ b/builtin/fsmonitor--daemon.c
@@ -2,7 +2,6 @@
 #include "abspath.h"
 #include "config.h"
 #include "dir.h"
-#include "environment.h"
 #include "gettext.h"
 #include "parse-options.h"
 #include "fsmonitor-ll.h"
@@ -1291,7 +1290,8 @@ static int fsmonitor_run_daemon(void)
 
 	/* Prepare to (recursively) watch the <worktree-root> directory. */
 	strbuf_init(&state.path_worktree_watch, 0);
-	strbuf_addstr(&state.path_worktree_watch, absolute_path(get_git_work_tree()));
+	strbuf_addstr(&state.path_worktree_watch,
+		      absolute_path(repo_get_work_tree(the_repository)));
 	state.nr_paths_watching = 1;
 
 	strbuf_init(&state.alias.alias, 0);
@@ -1311,7 +1311,8 @@ static int fsmonitor_run_daemon(void)
 	strbuf_addstr(&state.path_gitdir_watch, "/.git");
 	if (!is_directory(state.path_gitdir_watch.buf)) {
 		strbuf_reset(&state.path_gitdir_watch);
-		strbuf_addstr(&state.path_gitdir_watch, absolute_path(get_git_dir()));
+		strbuf_addstr(&state.path_gitdir_watch,
+			      absolute_path(repo_get_git_dir(the_repository)));
 		state.nr_paths_watching = 2;
 	}
 
diff --git a/builtin/gc.c b/builtin/gc.c
index 7dac971405..ed18463f1b 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -2132,7 +2132,7 @@ static int schtasks_schedule_task(const char *exec_path, enum schedule_priority
 	get_schedule_cmd(&cmd, NULL);
 
 	strbuf_addf(&tfilename, "%s/schedule_%s_XXXXXX",
-		    get_git_common_dir(), frequency);
+		    repo_get_common_dir(the_repository), frequency);
 	tfile = xmks_tempfile(tfilename.buf);
 	strbuf_release(&tfilename);
 
diff --git a/builtin/init-db.c b/builtin/init-db.c
index 582dcf20f8..fb04962dce 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -231,9 +231,9 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
 			set_git_work_tree(work_tree);
 		else
 			set_git_work_tree(git_work_tree_cfg);
-		if (access(get_git_work_tree(), X_OK))
+		if (access(repo_get_work_tree(the_repository), X_OK))
 			die_errno (_("Cannot access work tree '%s'"),
-				   get_git_work_tree());
+				   repo_get_work_tree(the_repository));
 	}
 	else {
 		if (real_git_dir)
diff --git a/builtin/merge.c b/builtin/merge.c
index 662a49a0e8..7f5475f738 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -17,6 +17,7 @@
 #include "object-name.h"
 #include "parse-options.h"
 #include "lockfile.h"
+#include "repository.h"
 #include "run-command.h"
 #include "hook.h"
 #include "diff.h"
@@ -695,7 +696,9 @@ static int read_tree_trivial(struct object_id *common, struct object_id *head,
 
 static void write_tree_trivial(struct object_id *oid)
 {
-	if (write_index_as_tree(oid, the_repository->index, get_index_file(), 0, NULL))
+	if (write_index_as_tree(oid, the_repository->index,
+				repo_get_index_file(the_repository),
+				0, NULL))
 		die(_("git write-tree failed to write a tree"));
 }
 
@@ -757,7 +760,7 @@ static int try_merge_strategy(const char *strategy, struct commit_list *common,
 		}
 		if (write_locked_index(the_repository->index, &lock,
 				       COMMIT_LOCK | SKIP_IF_UNCHANGED))
-			die(_("unable to write %s"), get_index_file());
+			die(_("unable to write %s"), repo_get_index_file(the_repository));
 		return clean ? 0 : 1;
 	} else {
 		return try_merge_command(the_repository,
@@ -839,7 +842,7 @@ static void write_merge_heads(struct commit_list *);
 static void prepare_to_commit(struct commit_list *remoteheads)
 {
 	struct strbuf msg = STRBUF_INIT;
-	const char *index_file = get_index_file();
+	const char *index_file = repo_get_index_file(the_repository);
 
 	if (!no_verify) {
 		int invoked_hook;
@@ -855,7 +858,8 @@ static void prepare_to_commit(struct commit_list *remoteheads)
 		if (invoked_hook)
 			discard_index(the_repository->index);
 	}
-	read_index_from(the_repository->index, index_file, get_git_dir());
+	read_index_from(the_repository->index, index_file,
+			repo_get_git_dir(the_repository));
 	strbuf_addbuf(&msg, &merge_msg);
 	if (squash)
 		BUG("the control must not reach here under --squash");
@@ -878,8 +882,8 @@ static void prepare_to_commit(struct commit_list *remoteheads)
 		append_signoff(&msg, ignored_log_message_bytes(msg.buf, msg.len), 0);
 	write_merge_heads(remoteheads);
 	write_file_buf(git_path_merge_msg(the_repository), msg.buf, msg.len);
-	if (run_commit_hook(0 < option_edit, get_index_file(), NULL,
-			    "prepare-commit-msg",
+	if (run_commit_hook(0 < option_edit, repo_get_index_file(the_repository),
+			    NULL, "prepare-commit-msg",
 			    git_path_merge_msg(the_repository), "merge", NULL))
 		abort_commit(remoteheads, NULL);
 	if (0 < option_edit) {
@@ -887,7 +891,7 @@ static void prepare_to_commit(struct commit_list *remoteheads)
 			abort_commit(remoteheads, NULL);
 	}
 
-	if (!no_verify && run_commit_hook(0 < option_edit, get_index_file(),
+	if (!no_verify && run_commit_hook(0 < option_edit, repo_get_index_file(the_repository),
 					  NULL, "commit-msg",
 					  git_path_merge_msg(the_repository), NULL))
 		abort_commit(remoteheads, NULL);
diff --git a/builtin/multi-pack-index.c b/builtin/multi-pack-index.c
index 8805cbbeb3..55289e989d 100644
--- a/builtin/multi-pack-index.c
+++ b/builtin/multi-pack-index.c
@@ -1,7 +1,6 @@
 #include "builtin.h"
 #include "abspath.h"
 #include "config.h"
-#include "environment.h"
 #include "gettext.h"
 #include "parse-options.h"
 #include "midx.h"
@@ -9,6 +8,7 @@
 #include "trace2.h"
 #include "object-store-ll.h"
 #include "replace-object.h"
+#include "repository.h"
 
 #define BUILTIN_MIDX_WRITE_USAGE \
 	N_("git multi-pack-index [<options>] write [--preferred-pack=<pack>]" \
@@ -63,7 +63,7 @@ static int parse_object_dir(const struct option *opt, const char *arg,
 	char **value = opt->value;
 	free(*value);
 	if (unset)
-		*value = xstrdup(get_object_directory());
+		*value = xstrdup(repo_get_object_directory(the_repository));
 	else
 		*value = real_pathdup(arg, 1);
 	return 0;
diff --git a/builtin/notes.c b/builtin/notes.c
index 04f9dfb7fb..5d594a0724 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -897,6 +897,7 @@ static int merge(int argc, const char **argv, const char *prefix)
 			      1, PARSE_OPT_NONEG),
 		OPT_END()
 	};
+	char *notes_ref;
 
 	argc = parse_options(argc, argv, prefix, options,
 			     git_notes_merge_usage, 0);
@@ -924,7 +925,8 @@ static int merge(int argc, const char **argv, const char *prefix)
 	if (do_commit)
 		return merge_commit(&o);
 
-	o.local_ref = default_notes_ref();
+	notes_ref = default_notes_ref(the_repository);
+	o.local_ref = notes_ref;
 	strbuf_addstr(&remote_ref, argv[0]);
 	expand_loose_notes_ref(&remote_ref);
 	o.remote_ref = remote_ref.buf;
@@ -953,7 +955,7 @@ static int merge(int argc, const char **argv, const char *prefix)
 	}
 
 	strbuf_addf(&msg, "notes: Merged notes from %s into %s",
-		    remote_ref.buf, default_notes_ref());
+		    remote_ref.buf, notes_ref);
 	strbuf_add(&(o.commit_msg), msg.buf + 7, msg.len - 7); /* skip "notes: " */
 
 	result = notes_merge(&o, t, &result_oid);
@@ -961,7 +963,7 @@ static int merge(int argc, const char **argv, const char *prefix)
 	if (result >= 0) /* Merge resulted (trivially) in result_oid */
 		/* Update default notes ref with new commit */
 		refs_update_ref(get_main_ref_store(the_repository), msg.buf,
-				default_notes_ref(), &result_oid, NULL, 0,
+				notes_ref, &result_oid, NULL, 0,
 				UPDATE_REFS_DIE_ON_ERR);
 	else { /* Merge has unresolved conflicts */
 		struct worktree **worktrees;
@@ -973,14 +975,14 @@ static int merge(int argc, const char **argv, const char *prefix)
 		/* Store ref-to-be-updated into .git/NOTES_MERGE_REF */
 		worktrees = get_worktrees();
 		wt = find_shared_symref(worktrees, "NOTES_MERGE_REF",
-					default_notes_ref());
+					notes_ref);
 		if (wt)
 			die(_("a notes merge into %s is already in-progress at %s"),
-			    default_notes_ref(), wt->path);
+			    notes_ref, wt->path);
 		free_worktrees(worktrees);
-		if (refs_update_symref(get_main_ref_store(the_repository), "NOTES_MERGE_REF", default_notes_ref(), NULL))
+		if (refs_update_symref(get_main_ref_store(the_repository), "NOTES_MERGE_REF", notes_ref, NULL))
 			die(_("failed to store link to current notes ref (%s)"),
-			    default_notes_ref());
+			    notes_ref);
 		fprintf(stderr, _("Automatic notes merge failed. Fix conflicts in %s "
 				  "and commit the result with 'git notes merge --commit', "
 				  "or abort the merge with 'git notes merge --abort'.\n"),
@@ -988,6 +990,7 @@ static int merge(int argc, const char **argv, const char *prefix)
 	}
 
 	free_notes(t);
+	free(notes_ref);
 	strbuf_release(&remote_ref);
 	strbuf_release(&msg);
 	return result < 0; /* return non-zero on conflicts */
@@ -1084,6 +1087,7 @@ static int prune(int argc, const char **argv, const char *prefix)
 static int get_ref(int argc, const char **argv, const char *prefix)
 {
 	struct option options[] = { OPT_END() };
+	char *notes_ref;
 	argc = parse_options(argc, argv, prefix, options,
 			     git_notes_get_ref_usage, 0);
 
@@ -1092,7 +1096,9 @@ static int get_ref(int argc, const char **argv, const char *prefix)
 		usage_with_options(git_notes_get_ref_usage, options);
 	}
 
-	puts(default_notes_ref());
+	notes_ref = default_notes_ref(the_repository);
+	puts(notes_ref);
+	free(notes_ref);
 	return 0;
 }
 
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 01479a9ccc..657c589b08 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -3968,7 +3968,7 @@ static int add_loose_object(const struct object_id *oid, const char *path,
  */
 static void add_unreachable_loose_objects(void)
 {
-	for_each_loose_file_in_objdir(get_object_directory(),
+	for_each_loose_file_in_objdir(repo_get_object_directory(the_repository),
 				      add_loose_object,
 				      NULL, NULL, NULL);
 }
diff --git a/builtin/prune.c b/builtin/prune.c
index 57fe31467f..47eeabbd13 100644
--- a/builtin/prune.c
+++ b/builtin/prune.c
@@ -193,12 +193,12 @@ int cmd_prune(int argc, const char **argv, const char *prefix)
 		revs.exclude_promisor_objects = 1;
 	}
 
-	for_each_loose_file_in_objdir(get_object_directory(), prune_object,
-				      prune_cruft, prune_subdir, &revs);
+	for_each_loose_file_in_objdir(repo_get_object_directory(the_repository),
+				      prune_object, prune_cruft, prune_subdir, &revs);
 
 	prune_packed_objects(show_only ? PRUNE_PACKED_DRY_RUN : 0);
-	remove_temporary_files(get_object_directory());
-	s = mkpathdup("%s/pack", get_object_directory());
+	remove_temporary_files(repo_get_object_directory(the_repository));
+	s = mkpathdup("%s/pack", repo_get_object_directory(the_repository));
 	remove_temporary_files(s);
 	free(s);
 
diff --git a/builtin/repack.c b/builtin/repack.c
index 3ee8cfa732..a4c0a7b97f 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -1260,7 +1260,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
 	if (write_midx && write_bitmaps) {
 		struct strbuf path = STRBUF_INIT;
 
-		strbuf_addf(&path, "%s/%s_XXXXXX", get_object_directory(),
+		strbuf_addf(&path, "%s/%s_XXXXXX", repo_get_object_directory(the_repository),
 			    "bitmap-ref-tips");
 
 		refs_snapshot = xmks_tempfile(path.buf);
@@ -1269,7 +1269,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
 		strbuf_release(&path);
 	}
 
-	packdir = mkpathdup("%s/pack", get_object_directory());
+	packdir = mkpathdup("%s/pack", repo_get_object_directory(the_repository));
 	packtmp_name = xstrfmt(".tmp-%d-pack", (int)getpid());
 	packtmp = mkpathdup("%s/%s", packdir, packtmp_name);
 
@@ -1539,7 +1539,8 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
 		unsigned flags = 0;
 		if (git_env_bool(GIT_TEST_MULTI_PACK_INDEX_WRITE_INCREMENTAL, 0))
 			flags |= MIDX_WRITE_INCREMENTAL;
-		write_midx_file(get_object_directory(), NULL, NULL, flags);
+		write_midx_file(repo_get_object_directory(the_repository),
+				NULL, NULL, flags);
 	}
 
 cleanup:
diff --git a/builtin/replace.c b/builtin/replace.c
index 34cc4672bc..01161350b1 100644
--- a/builtin/replace.c
+++ b/builtin/replace.c
@@ -11,7 +11,6 @@
 #include "builtin.h"
 #include "config.h"
 #include "editor.h"
-#include "environment.h"
 #include "gettext.h"
 #include "hex.h"
 #include "refs.h"
@@ -514,7 +513,7 @@ static int create_graft(int argc, const char **argv, int force, int gentle)
 
 static int convert_graft_file(int force)
 {
-	const char *graft_file = get_graft_file(the_repository);
+	const char *graft_file = repo_get_graft_file(the_repository);
 	FILE *fp = fopen_or_warn(graft_file, "r");
 	struct strbuf buf = STRBUF_INIT, err = STRBUF_INIT;
 	struct strvec args = STRVEC_INIT;
diff --git a/builtin/reset.c b/builtin/reset.c
index 5f941fb3a2..86b2f07d66 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -26,6 +26,7 @@
 #include "object-name.h"
 #include "parse-options.h"
 #include "path.h"
+#include "repository.h"
 #include "unpack-trees.h"
 #include "cache-tree.h"
 #include "setup.h"
@@ -441,7 +442,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
 	else
 		trace2_cmd_mode(reset_type_names[reset_type]);
 
-	if (reset_type != SOFT && (reset_type != MIXED || get_git_work_tree()))
+	if (reset_type != SOFT && (reset_type != MIXED || repo_get_work_tree(the_repository)))
 		setup_work_tree();
 
 	if (reset_type == MIXED && is_bare_repository())
@@ -474,7 +475,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
 				goto cleanup;
 			}
 			the_repository->index->updated_skipworktree = 1;
-			if (!no_refresh && get_git_work_tree()) {
+			if (!no_refresh && repo_get_work_tree(the_repository)) {
 				uint64_t t_begin, t_delta_in_ms;
 
 				t_begin = getnanotime();
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index 4285dc34a7..34b4675442 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -19,6 +19,8 @@
 #include "path.h"
 #include "diff.h"
 #include "read-cache-ll.h"
+#include "repo-settings.h"
+#include "repository.h"
 #include "revision.h"
 #include "setup.h"
 #include "split-index.h"
@@ -898,7 +900,8 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
 			}
 			if (opt_with_value(arg, "--abbrev-ref", &arg)) {
 				abbrev_ref = 1;
-				abbrev_ref_strict = warn_ambiguous_refs;
+				abbrev_ref_strict =
+					repo_settings_get_warn_ambiguous_refs(the_repository);
 				if (arg) {
 					if (!strcmp(arg, "strict"))
 						abbrev_ref_strict = 1;
@@ -966,7 +969,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
 				continue;
 			}
 			if (!strcmp(arg, "--show-toplevel")) {
-				const char *work_tree = get_git_work_tree();
+				const char *work_tree = repo_get_work_tree(the_repository);
 				if (work_tree)
 					print_path(work_tree, prefix, format, DEFAULT_UNMODIFIED);
 				else
@@ -991,7 +994,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
 				const char *pfx = prefix;
 				if (!is_inside_work_tree()) {
 					const char *work_tree =
-						get_git_work_tree();
+						repo_get_work_tree(the_repository);
 					if (work_tree)
 						printf("%s\n", work_tree);
 					continue;
@@ -1042,7 +1045,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
 				continue;
 			}
 			if (!strcmp(arg, "--git-common-dir")) {
-				print_path(get_git_common_dir(), prefix, format, DEFAULT_RELATIVE_IF_SHARED);
+				print_path(repo_get_common_dir(the_repository), prefix, format, DEFAULT_RELATIVE_IF_SHARED);
 				continue;
 			}
 			if (!strcmp(arg, "--is-inside-git-dir")) {
diff --git a/builtin/stash.c b/builtin/stash.c
index 4a2a633ce3..c4252c0b5c 100644
--- a/builtin/stash.c
+++ b/builtin/stash.c
@@ -19,6 +19,7 @@
 #include "entry.h"
 #include "preload-index.h"
 #include "read-cache.h"
+#include "repository.h"
 #include "rerere.h"
 #include "revision.h"
 #include "setup.h"
@@ -539,8 +540,8 @@ static int do_apply_stash(const char *prefix, struct stash_info *info,
 					 NULL, NULL, NULL))
 		return error(_("could not write index"));
 
-	if (write_index_as_tree(&c_tree, the_repository->index, get_index_file(), 0,
-				NULL))
+	if (write_index_as_tree(&c_tree, the_repository->index,
+				repo_get_index_file(the_repository), 0, NULL))
 		return error(_("cannot apply a stash in the middle of a merge"));
 
 	if (index) {
@@ -565,7 +566,7 @@ static int do_apply_stash(const char *prefix, struct stash_info *info,
 			discard_index(the_repository->index);
 			repo_read_index(the_repository);
 			if (write_index_as_tree(&index_tree, the_repository->index,
-						get_index_file(), 0, NULL))
+						repo_get_index_file(the_repository), 0, NULL))
 				return error(_("could not save index tree"));
 
 			reset_head();
@@ -640,9 +641,9 @@ restore_untracked:
 		cp.git_cmd = 1;
 		cp.dir = prefix;
 		strvec_pushf(&cp.env, GIT_WORK_TREE_ENVIRONMENT"=%s",
-			     absolute_path(get_git_work_tree()));
+			     absolute_path(repo_get_work_tree(the_repository)));
 		strvec_pushf(&cp.env, GIT_DIR_ENVIRONMENT"=%s",
-			     absolute_path(get_git_dir()));
+			     absolute_path(repo_get_git_dir(the_repository)));
 		strvec_push(&cp.args, "status");
 		run_command(&cp);
 	}
@@ -1405,8 +1406,8 @@ static int do_create_stash(const struct pathspec *ps, struct strbuf *stash_msg_b
 
 	strbuf_addf(&commit_tree_label, "index on %s\n", msg.buf);
 	commit_list_insert(head_commit, &parents);
-	if (write_index_as_tree(&info->i_tree, the_repository->index, get_index_file(), 0,
-				NULL) ||
+	if (write_index_as_tree(&info->i_tree, the_repository->index,
+				repo_get_index_file(the_repository), 0, NULL) ||
 	    commit_tree(commit_tree_label.buf, commit_tree_label.len,
 			&info->i_tree, parents, &info->i_commit, NULL, NULL)) {
 		if (!quiet)
@@ -1904,7 +1905,7 @@ int cmd_stash(int argc, const char **argv, const char *prefix)
 	prepare_repo_settings(the_repository);
 	the_repository->settings.command_requires_full_index = 0;
 
-	index_file = get_index_file();
+	index_file = repo_get_index_file(the_repository);
 	strbuf_addf(&stash_index_path, "%s.stash.%" PRIuMAX, index_file,
 		    (uintmax_t)pid);
 
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index e5ba05ab8c..9d8c4a3cee 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -1709,7 +1709,7 @@ static int clone_submodule(const struct module_clone_data *clone_data,
 		exit(128);
 
 	if (!is_absolute_path(clone_data->path))
-		clone_data_path = to_free = xstrfmt("%s/%s", get_git_work_tree(),
+		clone_data_path = to_free = xstrfmt("%s/%s", repo_get_work_tree(the_repository),
 						    clone_data->path);
 
 	if (validate_submodule_git_dir(sm_gitdir, clone_data->name) < 0)
diff --git a/builtin/update-index.c b/builtin/update-index.c
index 35a1f957ad..8baa225619 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -1194,7 +1194,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
 				  "remove or change it, if you really want to "
 				  "enable the untracked cache"));
 		add_untracked_cache(the_repository->index);
-		report(_("Untracked cache enabled for '%s'"), get_git_work_tree());
+		report(_("Untracked cache enabled for '%s'"), repo_get_work_tree(the_repository));
 		break;
 	default:
 		BUG("bad untracked_cache value: %d", untracked_cache);
@@ -1239,7 +1239,7 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
 		if (newfd < 0) {
 			if (refresh_args.flags & REFRESH_QUIET)
 				exit(128);
-			unable_to_lock_die(get_index_file(), lock_error);
+			unable_to_lock_die(repo_get_index_file(the_repository), lock_error);
 		}
 		if (write_locked_index(the_repository->index, &lock_file, COMMIT_LOCK))
 			die("Unable to write new index file");
diff --git a/builtin/worktree.c b/builtin/worktree.c
index 41e7f6a327..645b548bf3 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -219,7 +219,7 @@ static void prune_worktrees(void)
 	}
 	closedir(dir);
 
-	strbuf_add_absolute_path(&main_path, get_git_common_dir());
+	strbuf_add_absolute_path(&main_path, repo_get_common_dir(the_repository));
 	/* massage main worktree absolute path to match 'gitdir' content */
 	strbuf_strip_suffix(&main_path, "/.");
 	string_list_append_nodup(&kept, strbuf_detach(&main_path, NULL));
@@ -492,7 +492,7 @@ static int add_worktree(const char *path, const char *refname,
 	strbuf_addf(&sb, "%s/gitdir", sb_repo.buf);
 	strbuf_realpath(&realpath, sb_git.buf, 1);
 	write_file(sb.buf, "%s", realpath.buf);
-	strbuf_realpath(&realpath, get_git_common_dir(), 1);
+	strbuf_realpath(&realpath, repo_get_common_dir(the_repository), 1);
 	write_file(sb_git.buf, "gitdir: %s/worktrees/%s",
 		   realpath.buf, name);
 	strbuf_reset(&sb);
diff --git a/builtin/write-tree.c b/builtin/write-tree.c
index 8c75b4609b..9bcc4470ce 100644
--- a/builtin/write-tree.c
+++ b/builtin/write-tree.c
@@ -6,7 +6,6 @@
 
 #include "builtin.h"
 #include "config.h"
-#include "environment.h"
 #include "gettext.h"
 #include "hex.h"
 #include "tree.h"
@@ -44,7 +43,8 @@ int cmd_write_tree(int argc, const char **argv, const char *cmd_prefix)
 	prepare_repo_settings(the_repository);
 	the_repository->settings.command_requires_full_index = 0;
 
-	ret = write_index_as_tree(&oid, the_repository->index, get_index_file(),
+	ret = write_index_as_tree(&oid, the_repository->index,
+				  repo_get_index_file(the_repository),
 				  flags, tree_prefix);
 	switch (ret) {
 	case 0: