diff --git a/apply.c b/apply.c
index 959c457910..23a0f25ded 100644
--- a/apply.c
+++ b/apply.c
@@ -9,6 +9,7 @@
 
 #include "cache.h"
 #include "config.h"
+#include "object-store.h"
 #include "blob.h"
 #include "delta.h"
 #include "diff.h"
diff --git a/archive-tar.c b/archive-tar.c
index b6f58ddf38..7df8565246 100644
--- a/archive-tar.c
+++ b/archive-tar.c
@@ -5,6 +5,7 @@
 #include "config.h"
 #include "tar.h"
 #include "archive.h"
+#include "object-store.h"
 #include "streaming.h"
 #include "run-command.h"
 
diff --git a/archive-zip.c b/archive-zip.c
index 74f3fe9103..abc556e5a7 100644
--- a/archive-zip.c
+++ b/archive-zip.c
@@ -6,6 +6,7 @@
 #include "archive.h"
 #include "streaming.h"
 #include "utf8.h"
+#include "object-store.h"
 #include "userdiff.h"
 #include "xdiff-interface.h"
 
diff --git a/archive.c b/archive.c
index 4fe7bec60c..875dab64b6 100644
--- a/archive.c
+++ b/archive.c
@@ -1,6 +1,7 @@
 #include "cache.h"
 #include "config.h"
 #include "refs.h"
+#include "object-store.h"
 #include "commit.h"
 #include "tree-walk.h"
 #include "attr.h"
diff --git a/blame.c b/blame.c
index a5c9bd78ab..0c4490a35b 100644
--- a/blame.c
+++ b/blame.c
@@ -1,5 +1,6 @@
 #include "cache.h"
 #include "refs.h"
+#include "object-store.h"
 #include "cache-tree.h"
 #include "mergesort.h"
 #include "diff.h"
@@ -129,17 +130,19 @@ static void append_merge_parents(struct commit_list **tail)
 	int merge_head;
 	struct strbuf line = STRBUF_INIT;
 
-	merge_head = open(git_path_merge_head(), O_RDONLY);
+	merge_head = open(git_path_merge_head(the_repository), O_RDONLY);
 	if (merge_head < 0) {
 		if (errno == ENOENT)
 			return;
-		die("cannot open '%s' for reading", git_path_merge_head());
+		die("cannot open '%s' for reading",
+		    git_path_merge_head(the_repository));
 	}
 
 	while (!strbuf_getwholeline_fd(&line, merge_head, '\n')) {
 		struct object_id oid;
 		if (line.len < GIT_SHA1_HEXSZ || get_oid_hex(line.buf, &oid))
-			die("unknown line in '%s': %s", git_path_merge_head(), line.buf);
+			die("unknown line in '%s': %s",
+			    git_path_merge_head(the_repository), line.buf);
 		tail = append_parent(tail, &oid);
 	}
 	close(merge_head);
diff --git a/branch.c b/branch.c
index f967c98f63..6a35dd31f2 100644
--- a/branch.c
+++ b/branch.c
@@ -340,13 +340,13 @@ void create_branch(const char *name, const char *start_name,
 
 void remove_branch_state(void)
 {
-	unlink(git_path_cherry_pick_head());
-	unlink(git_path_revert_head());
-	unlink(git_path_merge_head());
-	unlink(git_path_merge_rr());
-	unlink(git_path_merge_msg());
-	unlink(git_path_merge_mode());
-	unlink(git_path_squash_msg());
+	unlink(git_path_cherry_pick_head(the_repository));
+	unlink(git_path_revert_head(the_repository));
+	unlink(git_path_merge_head(the_repository));
+	unlink(git_path_merge_rr(the_repository));
+	unlink(git_path_merge_msg(the_repository));
+	unlink(git_path_merge_mode(the_repository));
+	unlink(git_path_squash_msg(the_repository));
 }
 
 void die_if_checked_out(const char *branch, int ignore_current_worktree)
diff --git a/builtin/blame.c b/builtin/blame.c
index 5a0388aaef..921d127f29 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -9,6 +9,7 @@
 #include "config.h"
 #include "color.h"
 #include "builtin.h"
+#include "repository.h"
 #include "commit.h"
 #include "diff.h"
 #include "revision.h"
@@ -23,6 +24,7 @@
 #include "line-log.h"
 #include "dir.h"
 #include "progress.h"
+#include "object-store.h"
 #include "blame.h"
 #include "string-list.h"
 
@@ -576,7 +578,7 @@ static int read_ancestry(const char *graft_file)
 		/* The format is just "Commit Parent1 Parent2 ...\n" */
 		struct commit_graft *graft = read_graft_line(&buf);
 		if (graft)
-			register_commit_graft(graft, 0);
+			register_commit_graft(the_repository, graft, 0);
 	}
 	fclose(fp);
 	strbuf_release(&buf);
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 665b581949..4a44b2404f 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -13,6 +13,7 @@
 #include "tree-walk.h"
 #include "sha1-array.h"
 #include "packfile.h"
+#include "object-store.h"
 
 struct batch_options {
 	int enabled;
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 4c41d8b4c8..28627650cd 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -4,6 +4,7 @@
 #include "lockfile.h"
 #include "parse-options.h"
 #include "refs.h"
+#include "object-store.h"
 #include "commit.h"
 #include "tree.h"
 #include "tree-walk.h"
diff --git a/builtin/clone.c b/builtin/clone.c
index 74a804f2e8..1d939af9d8 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -15,6 +15,7 @@
 #include "fetch-pack.h"
 #include "refs.h"
 #include "refspec.h"
+#include "object-store.h"
 #include "tree.h"
 #include "tree-walk.h"
 #include "unpack-trees.h"
diff --git a/builtin/commit-tree.c b/builtin/commit-tree.c
index ecf42191da..9fbd3529fb 100644
--- a/builtin/commit-tree.c
+++ b/builtin/commit-tree.c
@@ -5,6 +5,7 @@
  */
 #include "cache.h"
 #include "config.h"
+#include "object-store.h"
 #include "commit.h"
 #include "tree.h"
 #include "builtin.h"
diff --git a/builtin/commit.c b/builtin/commit.c
index 9bcbb0c25c..158e3f843a 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -168,9 +168,9 @@ static int opt_parse_rename_score(const struct option *opt, const char *arg, int
 
 static void determine_whence(struct wt_status *s)
 {
-	if (file_exists(git_path_merge_head()))
+	if (file_exists(git_path_merge_head(the_repository)))
 		whence = FROM_MERGE;
-	else if (file_exists(git_path_cherry_pick_head())) {
+	else if (file_exists(git_path_cherry_pick_head(the_repository))) {
 		whence = FROM_CHERRY_PICK;
 		if (file_exists(git_path_seq_dir()))
 			sequencer_in_use = 1;
@@ -718,21 +718,21 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
 		if (have_option_m)
 			strbuf_addbuf(&sb, &message);
 		hook_arg1 = "message";
-	} else if (!stat(git_path_merge_msg(), &statbuf)) {
+	} else if (!stat(git_path_merge_msg(the_repository), &statbuf)) {
 		/*
 		 * prepend SQUASH_MSG here if it exists and a
 		 * "merge --squash" was originally performed
 		 */
-		if (!stat(git_path_squash_msg(), &statbuf)) {
-			if (strbuf_read_file(&sb, git_path_squash_msg(), 0) < 0)
+		if (!stat(git_path_squash_msg(the_repository), &statbuf)) {
+			if (strbuf_read_file(&sb, git_path_squash_msg(the_repository), 0) < 0)
 				die_errno(_("could not read SQUASH_MSG"));
 			hook_arg1 = "squash";
 		} else
 			hook_arg1 = "merge";
-		if (strbuf_read_file(&sb, git_path_merge_msg(), 0) < 0)
+		if (strbuf_read_file(&sb, git_path_merge_msg(the_repository), 0) < 0)
 			die_errno(_("could not read MERGE_MSG"));
-	} else if (!stat(git_path_squash_msg(), &statbuf)) {
-		if (strbuf_read_file(&sb, git_path_squash_msg(), 0) < 0)
+	} else if (!stat(git_path_squash_msg(the_repository), &statbuf)) {
+		if (strbuf_read_file(&sb, git_path_squash_msg(the_repository), 0) < 0)
 			die_errno(_("could not read SQUASH_MSG"));
 		hook_arg1 = "squash";
 	} else if (template_file) {
@@ -813,8 +813,8 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
 					"	%s\n"
 					"and try again.\n"),
 				whence == FROM_MERGE ?
-					git_path_merge_head() :
-					git_path_cherry_pick_head());
+					git_path_merge_head(the_repository) :
+					git_path_cherry_pick_head(the_repository));
 		}
 
 		fprintf(s->fp, "\n");
@@ -1564,7 +1564,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 		if (!reflog_msg)
 			reflog_msg = "commit (merge)";
 		pptr = commit_list_append(current_head, pptr);
-		fp = xfopen(git_path_merge_head(), "r");
+		fp = xfopen(git_path_merge_head(the_repository), "r");
 		while (strbuf_getline_lf(&m, fp) != EOF) {
 			struct commit *parent;
 
@@ -1575,8 +1575,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 		}
 		fclose(fp);
 		strbuf_release(&m);
-		if (!stat(git_path_merge_mode(), &statbuf)) {
-			if (strbuf_read_file(&sb, git_path_merge_mode(), 0) < 0)
+		if (!stat(git_path_merge_mode(the_repository), &statbuf)) {
+			if (strbuf_read_file(&sb, git_path_merge_mode(the_repository), 0) < 0)
 				die_errno(_("could not read MERGE_MODE"));
 			if (!strcmp(sb.buf, "no-ff"))
 				allow_fast_forward = 0;
@@ -1639,12 +1639,12 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
 		die("%s", err.buf);
 	}
 
-	unlink(git_path_cherry_pick_head());
-	unlink(git_path_revert_head());
-	unlink(git_path_merge_head());
-	unlink(git_path_merge_msg());
-	unlink(git_path_merge_mode());
-	unlink(git_path_squash_msg());
+	unlink(git_path_cherry_pick_head(the_repository));
+	unlink(git_path_revert_head(the_repository));
+	unlink(git_path_merge_head(the_repository));
+	unlink(git_path_merge_msg(the_repository));
+	unlink(git_path_merge_mode(the_repository));
+	unlink(git_path_squash_msg(the_repository));
 
 	if (commit_index_files())
 		die (_("Repository has been updated, but unable to write\n"
diff --git a/builtin/describe.c b/builtin/describe.c
index bec2513b66..1e87f68d5e 100644
--- a/builtin/describe.c
+++ b/builtin/describe.c
@@ -13,6 +13,7 @@
 #include "hashmap.h"
 #include "argv-array.h"
 #include "run-command.h"
+#include "object-store.h"
 #include "revision.h"
 #include "list-objects.h"
 #include "commit-slab.h"
diff --git a/builtin/difftool.c b/builtin/difftool.c
index bc97d4aef2..51f6c9cdb4 100644
--- a/builtin/difftool.c
+++ b/builtin/difftool.c
@@ -20,6 +20,7 @@
 #include "argv-array.h"
 #include "strbuf.h"
 #include "lockfile.h"
+#include "object-store.h"
 #include "dir.h"
 
 static char *diff_gui_tool;
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 73d12c1020..9ee6a4d2e8 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -8,6 +8,7 @@
 #include "config.h"
 #include "refs.h"
 #include "refspec.h"
+#include "object-store.h"
 #include "commit.h"
 #include "object.h"
 #include "tag.h"
diff --git a/builtin/fetch.c b/builtin/fetch.c
index ea5b9669ad..83f36d7cde 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -6,6 +6,7 @@
 #include "repository.h"
 #include "refs.h"
 #include "refspec.h"
+#include "object-store.h"
 #include "commit.h"
 #include "builtin.h"
 #include "string-list.h"
@@ -777,7 +778,7 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
 	const char *what, *kind;
 	struct ref *rm;
 	char *url;
-	const char *filename = dry_run ? "/dev/null" : git_path_fetch_head();
+	const char *filename = dry_run ? "/dev/null" : git_path_fetch_head(the_repository);
 	int want_status;
 	int summary_width = transport_summary_width(ref_map);
 
@@ -1029,7 +1030,7 @@ static void check_not_current_branch(struct ref *ref_map)
 
 static int truncate_fetch_head(void)
 {
-	const char *filename = git_path_fetch_head();
+	const char *filename = git_path_fetch_head(the_repository);
 	FILE *fp = fopen_for_writing(filename);
 
 	if (!fp)
@@ -1449,7 +1450,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
 	if (unshallow) {
 		if (depth)
 			die(_("--depth and --unshallow cannot be used together"));
-		else if (!is_repository_shallow())
+		else if (!is_repository_shallow(the_repository))
 			die(_("--unshallow on a complete repository does not make sense"));
 		else
 			depth = xstrfmt("%d", INFINITE_DEPTH);
diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c
index bd680be687..1b526adb3a 100644
--- a/builtin/fmt-merge-msg.c
+++ b/builtin/fmt-merge-msg.c
@@ -2,6 +2,7 @@
 #include "cache.h"
 #include "config.h"
 #include "refs.h"
+#include "object-store.h"
 #include "commit.h"
 #include "diff.h"
 #include "revision.h"
diff --git a/builtin/hash-object.c b/builtin/hash-object.c
index a9a3a198c3..9ada4f4dfd 100644
--- a/builtin/hash-object.c
+++ b/builtin/hash-object.c
@@ -6,6 +6,7 @@
  */
 #include "builtin.h"
 #include "config.h"
+#include "object-store.h"
 #include "blob.h"
 #include "quote.h"
 #include "parse-options.h"
diff --git a/builtin/log.c b/builtin/log.c
index 0583f7f383..c77af79755 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -7,6 +7,7 @@
 #include "cache.h"
 #include "config.h"
 #include "refs.h"
+#include "object-store.h"
 #include "color.h"
 #include "commit.h"
 #include "diff.h"
diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index 409da4e835..fe3b952cb3 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -5,6 +5,7 @@
  */
 #include "cache.h"
 #include "config.h"
+#include "object-store.h"
 #include "blob.h"
 #include "tree.h"
 #include "commit.h"
diff --git a/builtin/merge-tree.c b/builtin/merge-tree.c
index bf01e05808..8a8d579752 100644
--- a/builtin/merge-tree.c
+++ b/builtin/merge-tree.c
@@ -1,6 +1,7 @@
 #include "builtin.h"
 #include "tree-walk.h"
 #include "xdiff-interface.h"
+#include "object-store.h"
 #include "blob.h"
 #include "exec-cmd.h"
 #include "merge-blobs.h"
diff --git a/builtin/merge.c b/builtin/merge.c
index 4a4c09496c..d1b547d973 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -247,9 +247,9 @@ static struct option builtin_merge_options[] = {
 /* Cleans up metadata that is uninteresting after a succeeded merge. */
 static void drop_save(void)
 {
-	unlink(git_path_merge_head());
-	unlink(git_path_merge_msg());
-	unlink(git_path_merge_mode());
+	unlink(git_path_merge_head(the_repository));
+	unlink(git_path_merge_msg(the_repository));
+	unlink(git_path_merge_mode(the_repository));
 }
 
 static int save_state(struct object_id *stash)
@@ -382,7 +382,7 @@ static void squash_message(struct commit *commit, struct commit_list *remotehead
 			oid_to_hex(&commit->object.oid));
 		pretty_print_commit(&ctx, commit, &out);
 	}
-	write_file_buf(git_path_squash_msg(), out.buf, out.len);
+	write_file_buf(git_path_squash_msg(the_repository), out.buf, out.len);
 	strbuf_release(&out);
 }
 
@@ -741,7 +741,7 @@ static void add_strategies(const char *string, unsigned attr)
 
 static void read_merge_msg(struct strbuf *msg)
 {
-	const char *filename = git_path_merge_msg();
+	const char *filename = git_path_merge_msg(the_repository);
 	strbuf_reset(msg);
 	if (strbuf_read_file(msg, filename, 0) < 0)
 		die_errno(_("Could not read from '%s'"), filename);
@@ -778,18 +778,18 @@ static void prepare_to_commit(struct commit_list *remoteheads)
 	if (signoff)
 		append_signoff(&msg, ignore_non_trailer(msg.buf, msg.len), 0);
 	write_merge_heads(remoteheads);
-	write_file_buf(git_path_merge_msg(), msg.buf, msg.len);
+	write_file_buf(git_path_merge_msg(the_repository), msg.buf, msg.len);
 	if (run_commit_hook(0 < option_edit, get_index_file(), "prepare-commit-msg",
-			    git_path_merge_msg(), "merge", NULL))
+			    git_path_merge_msg(the_repository), "merge", NULL))
 		abort_commit(remoteheads, NULL);
 	if (0 < option_edit) {
-		if (launch_editor(git_path_merge_msg(), NULL, NULL))
+		if (launch_editor(git_path_merge_msg(the_repository), NULL, NULL))
 			abort_commit(remoteheads, NULL);
 	}
 
 	if (verify_msg && run_commit_hook(0 < option_edit, get_index_file(),
 					  "commit-msg",
-					  git_path_merge_msg(), NULL))
+					  git_path_merge_msg(the_repository), NULL))
 		abort_commit(remoteheads, NULL);
 
 	read_merge_msg(&msg);
@@ -859,7 +859,7 @@ static int suggest_conflicts(void)
 	FILE *fp;
 	struct strbuf msgbuf = STRBUF_INIT;
 
-	filename = git_path_merge_msg();
+	filename = git_path_merge_msg(the_repository);
 	fp = xfopen(filename, "a");
 
 	append_conflicts_hint(&msgbuf);
@@ -942,12 +942,12 @@ static void write_merge_heads(struct commit_list *remoteheads)
 		}
 		strbuf_addf(&buf, "%s\n", oid_to_hex(oid));
 	}
-	write_file_buf(git_path_merge_head(), buf.buf, buf.len);
+	write_file_buf(git_path_merge_head(the_repository), buf.buf, buf.len);
 
 	strbuf_reset(&buf);
 	if (fast_forward == FF_NO)
 		strbuf_addstr(&buf, "no-ff");
-	write_file_buf(git_path_merge_mode(), buf.buf, buf.len);
+	write_file_buf(git_path_merge_mode(the_repository), buf.buf, buf.len);
 	strbuf_release(&buf);
 }
 
@@ -955,7 +955,8 @@ static void write_merge_state(struct commit_list *remoteheads)
 {
 	write_merge_heads(remoteheads);
 	strbuf_addch(&merge_msg, '\n');
-	write_file_buf(git_path_merge_msg(), merge_msg.buf, merge_msg.len);
+	write_file_buf(git_path_merge_msg(the_repository), merge_msg.buf,
+		       merge_msg.len);
 }
 
 static int default_edit_option(void)
@@ -1038,7 +1039,7 @@ static void handle_fetch_head(struct commit_list **remotes, struct strbuf *merge
 	if (!merge_names)
 		merge_names = &fetch_head_file;
 
-	filename = git_path_fetch_head();
+	filename = git_path_fetch_head(the_repository);
 	fd = open(filename, O_RDONLY);
 	if (fd < 0)
 		die_errno(_("could not open '%s' for reading"), filename);
@@ -1213,7 +1214,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 			usage_msg_opt(_("--abort expects no arguments"),
 			      builtin_merge_usage, builtin_merge_options);
 
-		if (!file_exists(git_path_merge_head()))
+		if (!file_exists(git_path_merge_head(the_repository)))
 			die(_("There is no merge to abort (MERGE_HEAD missing)."));
 
 		/* Invoke 'git reset --merge' */
@@ -1229,7 +1230,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 			usage_msg_opt(_("--continue expects no arguments"),
 			      builtin_merge_usage, builtin_merge_options);
 
-		if (!file_exists(git_path_merge_head()))
+		if (!file_exists(git_path_merge_head(the_repository)))
 			die(_("There is no merge in progress (MERGE_HEAD missing)."));
 
 		/* Invoke 'git commit' */
@@ -1240,7 +1241,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 	if (read_cache_unmerged())
 		die_resolve_conflict("merge");
 
-	if (file_exists(git_path_merge_head())) {
+	if (file_exists(git_path_merge_head(the_repository))) {
 		/*
 		 * There is no unmerged entry, don't advise 'git
 		 * add/rm <file>', just 'git commit'.
@@ -1251,7 +1252,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 		else
 			die(_("You have not concluded your merge (MERGE_HEAD exists)."));
 	}
-	if (file_exists(git_path_cherry_pick_head())) {
+	if (file_exists(git_path_cherry_pick_head(the_repository))) {
 		if (advice_resolve_conflict)
 			die(_("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).\n"
 			    "Please, commit your changes before you merge."));
diff --git a/builtin/mktag.c b/builtin/mktag.c
index 82a6e86077..6fb7dc8578 100644
--- a/builtin/mktag.c
+++ b/builtin/mktag.c
@@ -1,6 +1,7 @@
 #include "builtin.h"
 #include "tag.h"
 #include "replace-object.h"
+#include "object-store.h"
 
 /*
  * A signature file has a very simple fixed format: four lines
diff --git a/builtin/mktree.c b/builtin/mktree.c
index bb76b469fd..2dc4ad6ba8 100644
--- a/builtin/mktree.c
+++ b/builtin/mktree.c
@@ -7,6 +7,7 @@
 #include "quote.h"
 #include "tree.h"
 #include "parse-options.h"
+#include "object-store.h"
 
 static struct treeent {
 	unsigned mode;
diff --git a/builtin/notes.c b/builtin/notes.c
index 6981e2d906..a0a1840040 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -11,6 +11,7 @@
 #include "config.h"
 #include "builtin.h"
 #include "notes.h"
+#include "object-store.h"
 #include "blob.h"
 #include "pretty.h"
 #include "refs.h"
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 71056d8294..69d3d7b82a 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -2969,7 +2969,7 @@ static void get_object_list(int ac, const char **av)
 	setup_revisions(ac, av, &revs, NULL);
 
 	/* make sure shallows are read */
-	is_repository_shallow();
+	is_repository_shallow(the_repository);
 
 	while (fgets(line, sizeof(line), stdin) != NULL) {
 		int len = strlen(line);
@@ -2987,7 +2987,7 @@ static void get_object_list(int ac, const char **av)
 				struct object_id oid;
 				if (get_oid_hex(line + 10, &oid))
 					die("not an SHA-1 '%s'", line + 10);
-				register_shallow(&oid);
+				register_shallow(the_repository, &oid);
 				use_bitmap_index = 0;
 				continue;
 			}
@@ -3299,7 +3299,7 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
 		use_bitmap_index = use_bitmap_index_default;
 
 	/* "hard" reasons not to use bitmaps; these just won't work at all */
-	if (!use_internal_rev_list || (!pack_to_stdout && write_bitmap_index) || is_repository_shallow())
+	if (!use_internal_rev_list || (!pack_to_stdout && write_bitmap_index) || is_repository_shallow(the_repository))
 		use_bitmap_index = 0;
 
 	if (pack_to_stdout || !rev_list_all)
diff --git a/builtin/prune.c b/builtin/prune.c
index 518ffbea13..70ec35aa05 100644
--- a/builtin/prune.c
+++ b/builtin/prune.c
@@ -6,6 +6,7 @@
 #include "reachable.h"
 #include "parse-options.h"
 #include "progress.h"
+#include "object-store.h"
 
 static const char * const prune_usage[] = {
 	N_("git prune [-n] [-v] [--progress] [--expire <time>] [--] [<head>...]"),
@@ -159,7 +160,7 @@ int cmd_prune(int argc, const char **argv, const char *prefix)
 	remove_temporary_files(s);
 	free(s);
 
-	if (is_repository_shallow())
+	if (is_repository_shallow(the_repository))
 		prune_shallow(show_only);
 
 	return 0;
diff --git a/builtin/pull.c b/builtin/pull.c
index fe002a72f8..7197b22b16 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -356,7 +356,7 @@ static int git_pull_config(const char *var, const char *value, void *cb)
  */
 static void get_merge_heads(struct oid_array *merge_heads)
 {
-	const char *filename = git_path_fetch_head();
+	const char *filename = git_path_fetch_head(the_repository);
 	FILE *fp;
 	struct strbuf sb = STRBUF_INIT;
 	struct object_id oid;
@@ -864,7 +864,7 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
 	if (read_cache_unmerged())
 		die_resolve_conflict("pull");
 
-	if (file_exists(git_path_merge_head()))
+	if (file_exists(git_path_merge_head(the_repository)))
 		die_conclude_merge();
 
 	if (get_oid("HEAD", &orig_head))
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 68d36e0a56..44c7c9ee82 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -25,6 +25,7 @@
 #include "tmp-objdir.h"
 #include "oidset.h"
 #include "packfile.h"
+#include "object-store.h"
 #include "protocol.h"
 
 static const char * const receive_pack_usage[] = {
@@ -905,7 +906,7 @@ static int update_shallow_ref(struct command *cmd, struct shallow_info *si)
 	 * not lose these new roots..
 	 */
 	for (i = 0; i < extra.nr; i++)
-		register_shallow(&extra.oid[i]);
+		register_shallow(the_repository, &extra.oid[i]);
 
 	si->shallow_ref[cmd->index] = 0;
 	oid_array_clear(&extra);
diff --git a/builtin/reflog.c b/builtin/reflog.c
index a48984d37e..0091192995 100644
--- a/builtin/reflog.c
+++ b/builtin/reflog.c
@@ -1,6 +1,7 @@
 #include "builtin.h"
 #include "config.h"
 #include "lockfile.h"
+#include "object-store.h"
 #include "commit.h"
 #include "refs.h"
 #include "dir.h"
diff --git a/builtin/remote.c b/builtin/remote.c
index 1a82d850a2..c74ee88690 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -8,6 +8,7 @@
 #include "run-command.h"
 #include "refs.h"
 #include "refspec.h"
+#include "object-store.h"
 #include "argv-array.h"
 
 static const char * const builtin_remote_usage[] = {
diff --git a/builtin/replace.c b/builtin/replace.c
index 6da2411e14..deabda2101 100644
--- a/builtin/replace.c
+++ b/builtin/replace.c
@@ -487,7 +487,7 @@ 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();
+	const char *graft_file = get_graft_file(the_repository);
 	FILE *fp = fopen_or_warn(graft_file, "r");
 	struct strbuf buf = STRBUF_INIT, err = STRBUF_INIT;
 	struct argv_array args = ARGV_ARRAY_INIT;
diff --git a/builtin/reset.c b/builtin/reset.c
index a862c70fab..ffe41c924b 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -39,7 +39,7 @@ static const char *reset_type_names[] = {
 
 static inline int is_merge(void)
 {
-	return !access(git_path_merge_head(), F_OK);
+	return !access(git_path_merge_head(the_repository), F_OK);
 }
 
 static int reset_index(const struct object_id *oid, int reset_type, int quiet)
diff --git a/builtin/rev-list.c b/builtin/rev-list.c
index fadd3ec14c..e9bd4e378a 100644
--- a/builtin/rev-list.c
+++ b/builtin/rev-list.c
@@ -6,6 +6,7 @@
 #include "list-objects.h"
 #include "list-objects-filter.h"
 #include "list-objects-filter-options.h"
+#include "object-store.h"
 #include "pack.h"
 #include "pack-bitmap.h"
 #include "builtin.h"
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index 4f49e96bfd..2a6cb298bd 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -883,7 +883,8 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
 				continue;
 			}
 			if (!strcmp(arg, "--is-shallow-repository")) {
-				printf("%s\n", is_repository_shallow() ? "true"
+				printf("%s\n",
+						is_repository_shallow(the_repository) ? "true"
 						: "false");
 				continue;
 			}
diff --git a/builtin/show-ref.c b/builtin/show-ref.c
index f2eb1a7724..2f13f1316f 100644
--- a/builtin/show-ref.c
+++ b/builtin/show-ref.c
@@ -1,6 +1,7 @@
 #include "builtin.h"
 #include "cache.h"
 #include "refs.h"
+#include "object-store.h"
 #include "object.h"
 #include "tag.h"
 #include "string-list.h"
diff --git a/builtin/tag.c b/builtin/tag.c
index 5d0dd11240..9919b03b2d 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -10,6 +10,7 @@
 #include "config.h"
 #include "builtin.h"
 #include "refs.h"
+#include "object-store.h"
 #include "tag.h"
 #include "run-command.h"
 #include "parse-options.h"
diff --git a/builtin/unpack-file.c b/builtin/unpack-file.c
index 300eb59657..58652229f2 100644
--- a/builtin/unpack-file.c
+++ b/builtin/unpack-file.c
@@ -1,5 +1,6 @@
 #include "builtin.h"
 #include "config.h"
+#include "object-store.h"
 
 static char *create_temp_file(struct object_id *oid)
 {
diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c
index 6e81ca8ca2..cf585fcc5e 100644
--- a/builtin/unpack-objects.c
+++ b/builtin/unpack-objects.c
@@ -1,6 +1,7 @@
 #include "builtin.h"
 #include "cache.h"
 #include "config.h"
+#include "object-store.h"
 #include "object.h"
 #include "delta.h"
 #include "pack.h"
diff --git a/builtin/verify-commit.c b/builtin/verify-commit.c
index dcdaada111..f6922da16d 100644
--- a/builtin/verify-commit.c
+++ b/builtin/verify-commit.c
@@ -8,6 +8,7 @@
 #include "cache.h"
 #include "config.h"
 #include "builtin.h"
+#include "object-store.h"
 #include "commit.h"
 #include "run-command.h"
 #include <signal.h>
diff --git a/bulk-checkin.c b/bulk-checkin.c
index b7e131c47a..9f3b644811 100644
--- a/bulk-checkin.c
+++ b/bulk-checkin.c
@@ -8,6 +8,7 @@
 #include "pack.h"
 #include "strbuf.h"
 #include "packfile.h"
+#include "object-store.h"
 
 static struct bulk_checkin_state {
 	unsigned plugged:1;
diff --git a/bundle.c b/bundle.c
index 160bbfdc64..ba18e25d02 100644
--- a/bundle.c
+++ b/bundle.c
@@ -1,6 +1,7 @@
 #include "cache.h"
 #include "lockfile.h"
 #include "bundle.h"
+#include "object-store.h"
 #include "object.h"
 #include "commit.h"
 #include "diff.h"
diff --git a/cache-tree.c b/cache-tree.c
index 25663825b5..6b46711996 100644
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -3,6 +3,7 @@
 #include "tree.h"
 #include "tree-walk.h"
 #include "cache-tree.h"
+#include "object-store.h"
 
 #ifndef DEBUG
 #define DEBUG 0
diff --git a/cache.h b/cache.h
index d49092d94d..8b447652a7 100644
--- a/cache.h
+++ b/cache.h
@@ -484,7 +484,7 @@ extern const char *get_git_dir(void);
 extern const char *get_git_common_dir(void);
 extern char *get_object_directory(void);
 extern char *get_index_file(void);
-extern char *get_graft_file(void);
+extern char *get_graft_file(struct repository *r);
 extern void set_git_dir(const char *path);
 extern int get_common_dir_noenv(struct strbuf *sb, const char *gitdir);
 extern int get_common_dir(struct strbuf *sb, const char *gitdir);
@@ -1192,32 +1192,6 @@ extern char *xdg_config_home(const char *filename);
  */
 extern char *xdg_cache_home(const char *filename);
 
-extern void *read_object_file_extended(const struct object_id *oid,
-				       enum object_type *type,
-				       unsigned long *size, int lookup_replace);
-static inline void *read_object_file(const struct object_id *oid, enum object_type *type, unsigned long *size)
-{
-	return read_object_file_extended(oid, type, size, 1);
-}
-
-/* Read and unpack an object file into memory, write memory to an object file */
-int oid_object_info(struct repository *r, const struct object_id *, unsigned long *);
-
-extern int hash_object_file(const void *buf, unsigned long len,
-			    const char *type, struct object_id *oid);
-
-extern int write_object_file(const void *buf, unsigned long len,
-			     const char *type, struct object_id *oid);
-
-extern int hash_object_file_literally(const void *buf, unsigned long len,
-				      const char *type, struct object_id *oid,
-				      unsigned flags);
-
-extern int pretend_object_file(void *, unsigned long, enum object_type,
-			       struct object_id *oid);
-
-extern int force_object_loose(const struct object_id *oid, time_t mtime);
-
 extern int git_open_cloexec(const char *name, int flags);
 #define git_open(name) git_open_cloexec(name, O_RDONLY)
 extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz);
@@ -1227,43 +1201,6 @@ extern int check_object_signature(const struct object_id *oid, void *buf, unsign
 
 extern int finalize_object_file(const char *tmpfile, const char *filename);
 
-/*
- * Open the loose object at path, check its hash, and return the contents,
- * type, and size. If the object is a blob, then "contents" may return NULL,
- * to allow streaming of large blobs.
- *
- * Returns 0 on success, negative on error (details may be written to stderr).
- */
-int read_loose_object(const char *path,
-		      const struct object_id *expected_oid,
-		      enum object_type *type,
-		      unsigned long *size,
-		      void **contents);
-
-/*
- * Convenience for sha1_object_info_extended() with a NULL struct
- * object_info. OBJECT_INFO_SKIP_CACHED is automatically set; pass
- * nonzero flags to also set other flags.
- */
-extern int has_sha1_file_with_flags(const unsigned char *sha1, int flags);
-static inline int has_sha1_file(const unsigned char *sha1)
-{
-	return has_sha1_file_with_flags(sha1, 0);
-}
-
-/* Same as the above, except for struct object_id. */
-extern int has_object_file(const struct object_id *oid);
-extern int has_object_file_with_flags(const struct object_id *oid, int flags);
-
-/*
- * Return true iff an alternate object database has a loose object
- * with the specified name.  This function does not respect replace
- * references.
- */
-extern int has_loose_object_nonlocal(const struct object_id *oid);
-
-extern void assert_oid_type(const struct object_id *oid, enum object_type expect);
-
 /* Helper to check and "touch" a file */
 extern int check_and_freshen_file(const char *fn, int freshen);
 
@@ -1631,60 +1568,6 @@ int for_each_loose_file_in_objdir_buf(struct strbuf *path,
 #define FOR_EACH_OBJECT_LOCAL_ONLY 0x1
 extern int for_each_loose_object(each_loose_object_fn, void *, unsigned flags);
 
-struct object_info {
-	/* Request */
-	enum object_type *typep;
-	unsigned long *sizep;
-	off_t *disk_sizep;
-	unsigned char *delta_base_sha1;
-	struct strbuf *type_name;
-	void **contentp;
-
-	/* Response */
-	enum {
-		OI_CACHED,
-		OI_LOOSE,
-		OI_PACKED,
-		OI_DBCACHED
-	} whence;
-	union {
-		/*
-		 * struct {
-		 * 	... Nothing to expose in this case
-		 * } cached;
-		 * struct {
-		 * 	... Nothing to expose in this case
-		 * } loose;
-		 */
-		struct {
-			struct packed_git *pack;
-			off_t offset;
-			unsigned int is_delta;
-		} packed;
-	} u;
-};
-
-/*
- * Initializer for a "struct object_info" that wants no items. You may
- * also memset() the memory to all-zeroes.
- */
-#define OBJECT_INFO_INIT {NULL}
-
-/* Invoke lookup_replace_object() on the given hash */
-#define OBJECT_INFO_LOOKUP_REPLACE 1
-/* Allow reading from a loose object file of unknown/bogus type */
-#define OBJECT_INFO_ALLOW_UNKNOWN_TYPE 2
-/* Do not check cached storage */
-#define OBJECT_INFO_SKIP_CACHED 4
-/* Do not retry packed storage after checking packed and loose storage */
-#define OBJECT_INFO_QUICK 8
-/* Do not check loose object */
-#define OBJECT_INFO_IGNORE_LOOSE 16
-
-int oid_object_info_extended(struct repository *r,
-			     const struct object_id *,
-			     struct object_info *, unsigned flags);
-
 /*
  * Set this to 0 to prevent sha1_object_info_extended() from fetching missing
  * blobs. This has a difference only if extensions.partialClone is set.
diff --git a/combine-diff.c b/combine-diff.c
index 2ef495963f..de7695e728 100644
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "object-store.h"
 #include "commit.h"
 #include "blob.h"
 #include "diff.h"
diff --git a/commit.c b/commit.c
index 0c3b75aeff..a7c0b5f8c6 100644
--- a/commit.c
+++ b/commit.c
@@ -2,6 +2,8 @@
 #include "tag.h"
 #include "commit.h"
 #include "commit-graph.h"
+#include "repository.h"
+#include "object-store.h"
 #include "pkt-line.h"
 #include "utf8.h"
 #include "diff.h"
@@ -98,41 +100,44 @@ static timestamp_t parse_commit_date(const char *buf, const char *tail)
 	return parse_timestamp(dateptr, NULL, 10);
 }
 
-static struct commit_graft **commit_graft;
-static int commit_graft_alloc, commit_graft_nr;
-
 static const unsigned char *commit_graft_sha1_access(size_t index, void *table)
 {
 	struct commit_graft **commit_graft_table = table;
 	return commit_graft_table[index]->oid.hash;
 }
 
-static int commit_graft_pos(const unsigned char *sha1)
+static int commit_graft_pos(struct repository *r, const unsigned char *sha1)
 {
-	return sha1_pos(sha1, commit_graft, commit_graft_nr,
+	return sha1_pos(sha1, r->parsed_objects->grafts,
+			r->parsed_objects->grafts_nr,
 			commit_graft_sha1_access);
 }
 
-int register_commit_graft(struct commit_graft *graft, int ignore_dups)
+int register_commit_graft(struct repository *r, struct commit_graft *graft,
+			  int ignore_dups)
 {
-	int pos = commit_graft_pos(graft->oid.hash);
+	int pos = commit_graft_pos(r, graft->oid.hash);
 
 	if (0 <= pos) {
 		if (ignore_dups)
 			free(graft);
 		else {
-			free(commit_graft[pos]);
-			commit_graft[pos] = graft;
+			free(r->parsed_objects->grafts[pos]);
+			r->parsed_objects->grafts[pos] = graft;
 		}
 		return 1;
 	}
 	pos = -pos - 1;
-	ALLOC_GROW(commit_graft, commit_graft_nr + 1, commit_graft_alloc);
-	commit_graft_nr++;
-	if (pos < commit_graft_nr)
-		MOVE_ARRAY(commit_graft + pos + 1, commit_graft + pos,
-			   commit_graft_nr - pos - 1);
-	commit_graft[pos] = graft;
+	ALLOC_GROW(r->parsed_objects->grafts,
+		   r->parsed_objects->grafts_nr + 1,
+		   r->parsed_objects->grafts_alloc);
+	r->parsed_objects->grafts_nr++;
+	if (pos < r->parsed_objects->grafts_nr)
+		memmove(r->parsed_objects->grafts + pos + 1,
+			r->parsed_objects->grafts + pos,
+			(r->parsed_objects->grafts_nr - pos - 1) *
+			sizeof(*r->parsed_objects->grafts));
+	r->parsed_objects->grafts[pos] = graft;
 	return 0;
 }
 
@@ -174,7 +179,7 @@ bad_graft_data:
 	return NULL;
 }
 
-static int read_graft_file(const char *graft_file)
+static int read_graft_file(struct repository *r, const char *graft_file)
 {
 	FILE *fp = fopen_or_warn(graft_file, "r");
 	struct strbuf buf = STRBUF_INIT;
@@ -194,7 +199,7 @@ static int read_graft_file(const char *graft_file)
 		struct commit_graft *graft = read_graft_line(&buf);
 		if (!graft)
 			continue;
-		if (register_commit_graft(graft, 1))
+		if (register_commit_graft(r, graft, 1))
 			error("duplicate graft data: %s", buf.buf);
 	}
 	fclose(fp);
@@ -202,50 +207,50 @@ static int read_graft_file(const char *graft_file)
 	return 0;
 }
 
-static void prepare_commit_graft(void)
+static void prepare_commit_graft(struct repository *r)
 {
-	static int commit_graft_prepared;
 	char *graft_file;
 
-	if (commit_graft_prepared)
+	if (r->parsed_objects->commit_graft_prepared)
 		return;
 	if (!startup_info->have_repository)
 		return;
 
-	graft_file = get_graft_file();
-	read_graft_file(graft_file);
+	graft_file = get_graft_file(r);
+	read_graft_file(r, graft_file);
 	/* make sure shallows are read */
-	is_repository_shallow();
-	commit_graft_prepared = 1;
+	is_repository_shallow(r);
+	r->parsed_objects->commit_graft_prepared = 1;
 }
 
-struct commit_graft *lookup_commit_graft(const struct object_id *oid)
+struct commit_graft *lookup_commit_graft(struct repository *r, const struct object_id *oid)
 {
 	int pos;
-	prepare_commit_graft();
-	pos = commit_graft_pos(oid->hash);
+	prepare_commit_graft(r);
+	pos = commit_graft_pos(r, oid->hash);
 	if (pos < 0)
 		return NULL;
-	return commit_graft[pos];
+	return r->parsed_objects->grafts[pos];
 }
 
 int for_each_commit_graft(each_commit_graft_fn fn, void *cb_data)
 {
 	int i, ret;
-	for (i = ret = 0; i < commit_graft_nr && !ret; i++)
-		ret = fn(commit_graft[i], cb_data);
+	for (i = ret = 0; i < the_repository->parsed_objects->grafts_nr && !ret; i++)
+		ret = fn(the_repository->parsed_objects->grafts[i], cb_data);
 	return ret;
 }
 
 int unregister_shallow(const struct object_id *oid)
 {
-	int pos = commit_graft_pos(oid->hash);
+	int pos = commit_graft_pos(the_repository, oid->hash);
 	if (pos < 0)
 		return -1;
-	if (pos + 1 < commit_graft_nr)
-		MOVE_ARRAY(commit_graft + pos, commit_graft + pos + 1,
-			   commit_graft_nr - pos - 1);
-	commit_graft_nr--;
+	if (pos + 1 < the_repository->parsed_objects->grafts_nr)
+		MOVE_ARRAY(the_repository->parsed_objects->grafts + pos,
+			   the_repository->parsed_objects->grafts + pos + 1,
+			   the_repository->parsed_objects->grafts_nr - pos - 1);
+	the_repository->parsed_objects->grafts_nr--;
 	return 0;
 }
 
@@ -381,7 +386,7 @@ int parse_commit_buffer(struct commit *item, const void *buffer, unsigned long s
 	bufptr += tree_entry_len + 1; /* "tree " + "hex sha1" + "\n" */
 	pptr = &item->parents;
 
-	graft = lookup_commit_graft(&item->object.oid);
+	graft = lookup_commit_graft(the_repository, &item->object.oid);
 	while (bufptr + parent_entry_len < tail && !memcmp(bufptr, "parent ", 7)) {
 		struct commit *new_parent;
 
diff --git a/commit.h b/commit.h
index 3ad07c2e3d..01b8b1d689 100644
--- a/commit.h
+++ b/commit.h
@@ -194,8 +194,8 @@ struct commit_graft {
 typedef int (*each_commit_graft_fn)(const struct commit_graft *, void *);
 
 struct commit_graft *read_graft_line(struct strbuf *line);
-int register_commit_graft(struct commit_graft *, int);
-struct commit_graft *lookup_commit_graft(const struct object_id *oid);
+int register_commit_graft(struct repository *r, struct commit_graft *, int);
+struct commit_graft *lookup_commit_graft(struct repository *r, const struct object_id *oid);
 
 extern struct commit_list *get_merge_bases(struct commit *rev1, struct commit *rev2);
 extern struct commit_list *get_merge_bases_many(struct commit *one, int n, struct commit **twos);
@@ -209,15 +209,15 @@ extern struct commit_list *get_merge_bases_many_dirty(struct commit *one, int n,
 
 struct oid_array;
 struct ref;
-extern int register_shallow(const struct object_id *oid);
+extern int register_shallow(struct repository *r, const struct object_id *oid);
 extern int unregister_shallow(const struct object_id *oid);
 extern int for_each_commit_graft(each_commit_graft_fn, void *);
-extern int is_repository_shallow(void);
+extern int is_repository_shallow(struct repository *r);
 extern struct commit_list *get_shallow_commits(struct object_array *heads,
 		int depth, int shallow_flag, int not_shallow_flag);
 extern struct commit_list *get_shallow_commits_by_rev_list(
 		int ac, const char **av, int shallow_flag, int not_shallow_flag);
-extern void set_alternate_shallow_file(const char *path, int override);
+extern void set_alternate_shallow_file(struct repository *r, const char *path, int override);
 extern int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
 				 const struct oid_array *extra);
 extern void setup_alternate_shallow(struct lock_file *shallow_lock,
diff --git a/config.c b/config.c
index f4a208a166..139c903f6b 100644
--- a/config.c
+++ b/config.c
@@ -14,6 +14,7 @@
 #include "quote.h"
 #include "hashmap.h"
 #include "string-list.h"
+#include "object-store.h"
 #include "utf8.h"
 #include "dir.h"
 #include "color.h"
diff --git a/convert.c b/convert.c
index 64d0d30e08..56cfe31ec5 100644
--- a/convert.c
+++ b/convert.c
@@ -1,6 +1,7 @@
 #define NO_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
+#include "object-store.h"
 #include "attr.h"
 #include "run-command.h"
 #include "quote.h"
diff --git a/diff.c b/diff.c
index 639eb646b9..dc53a19bab 100644
--- a/diff.c
+++ b/diff.c
@@ -13,6 +13,7 @@
 #include "attr.h"
 #include "run-command.h"
 #include "utf8.h"
+#include "object-store.h"
 #include "userdiff.h"
 #include "submodule-config.h"
 #include "submodule.h"
diff --git a/diffcore-rename.c b/diffcore-rename.c
index 0b7e4989a8..d775183c2f 100644
--- a/diffcore-rename.c
+++ b/diffcore-rename.c
@@ -4,6 +4,7 @@
 #include "cache.h"
 #include "diff.h"
 #include "diffcore.h"
+#include "object-store.h"
 #include "hashmap.h"
 #include "progress.h"
 
diff --git a/dir.c b/dir.c
index fe9bf58e4c..a1fe57e925 100644
--- a/dir.c
+++ b/dir.c
@@ -11,6 +11,7 @@
 #include "cache.h"
 #include "config.h"
 #include "dir.h"
+#include "object-store.h"
 #include "attr.h"
 #include "refs.h"
 #include "wildmatch.h"
diff --git a/entry.c b/entry.c
index 2101201a11..b5d1d3cf23 100644
--- a/entry.c
+++ b/entry.c
@@ -1,5 +1,6 @@
 #include "cache.h"
 #include "blob.h"
+#include "object-store.h"
 #include "dir.h"
 #include "streaming.h"
 #include "submodule.h"
diff --git a/environment.c b/environment.c
index 2a6de2330b..013e845235 100644
--- a/environment.c
+++ b/environment.c
@@ -192,7 +192,7 @@ void setup_git_env(const char *git_dir)
 	git_namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT));
 	shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT);
 	if (shallow_file)
-		set_alternate_shallow_file(shallow_file, 0);
+		set_alternate_shallow_file(the_repository, shallow_file, 0);
 }
 
 int is_bare_repository(void)
@@ -319,11 +319,11 @@ char *get_index_file(void)
 	return the_repository->index_file;
 }
 
-char *get_graft_file(void)
+char *get_graft_file(struct repository *r)
 {
-	if (!the_repository->graft_file)
+	if (!r->graft_file)
 		BUG("git environment hasn't been setup");
-	return the_repository->graft_file;
+	return r->graft_file;
 }
 
 static void set_git_dir_1(const char *path)
diff --git a/fetch-pack.c b/fetch-pack.c
index cc7a42fee9..dbd879ac7f 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -19,6 +19,7 @@
 #include "sha1-array.h"
 #include "oidset.h"
 #include "packfile.h"
+#include "object-store.h"
 
 static int transfer_unpack_limit = -1;
 static int fetch_unpack_limit = -1;
@@ -396,7 +397,7 @@ static int find_common(struct fetch_pack_args *args,
 		return 1;
 	}
 
-	if (is_repository_shallow())
+	if (is_repository_shallow(the_repository))
 		write_shallow_commits(&req_buf, 1, NULL);
 	if (args->depth > 0)
 		packet_buf_write(&req_buf, "deepen %d", args->depth);
@@ -427,7 +428,7 @@ static int find_common(struct fetch_pack_args *args,
 			if (skip_prefix(line, "shallow ", &arg)) {
 				if (get_oid_hex(arg, &oid))
 					die(_("invalid shallow line: %s"), line);
-				register_shallow(&oid);
+				register_shallow(the_repository, &oid);
 				continue;
 			}
 			if (skip_prefix(line, "unshallow ", &arg)) {
@@ -985,7 +986,7 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
 	sort_ref_list(&ref, ref_compare_name);
 	QSORT(sought, nr_sought, cmp_ref_by_name);
 
-	if ((args->depth > 0 || is_repository_shallow()) && !server_supports("shallow"))
+	if ((args->depth > 0 || is_repository_shallow(the_repository)) && !server_supports("shallow"))
 		die(_("Server does not support shallow clients"));
 	if (args->depth > 0 || args->deepen_since || args->deepen_not)
 		args->deepen = 1;
@@ -1083,7 +1084,7 @@ static struct ref *do_fetch_pack(struct fetch_pack_args *args,
 static void add_shallow_requests(struct strbuf *req_buf,
 				 const struct fetch_pack_args *args)
 {
-	if (is_repository_shallow())
+	if (is_repository_shallow(the_repository))
 		write_shallow_commits(req_buf, 1, NULL);
 	if (args->depth > 0)
 		packet_buf_write(req_buf, "deepen %d", args->depth);
@@ -1195,7 +1196,7 @@ static int send_fetch_request(int fd_out, const struct fetch_pack_args *args,
 	/* Add shallow-info and deepen request */
 	if (server_supports_feature("fetch", "shallow", 0))
 		add_shallow_requests(&req_buf, args);
-	else if (is_repository_shallow() || args->deepen)
+	else if (is_repository_shallow(the_repository) || args->deepen)
 		die(_("Server does not support shallow requests"));
 
 	/* Add filter */
@@ -1308,7 +1309,7 @@ static void receive_shallow_info(struct fetch_pack_args *args,
 		if (skip_prefix(reader->line, "shallow ", &arg)) {
 			if (get_oid_hex(arg, &oid))
 				die(_("invalid shallow line: %s"), reader->line);
-			register_shallow(&oid);
+			register_shallow(the_repository, &oid);
 			continue;
 		}
 		if (skip_prefix(reader->line, "unshallow ", &arg)) {
@@ -1479,7 +1480,7 @@ static void update_shallow(struct fetch_pack_args *args,
 
 	if (args->deepen && alternate_shallow_file) {
 		if (*alternate_shallow_file == '\0') { /* --unshallow */
-			unlink_or_warn(git_path_shallow());
+			unlink_or_warn(git_path_shallow(the_repository));
 			rollback_lock_file(&shallow_lock);
 		} else
 			commit_lock_file(&shallow_lock);
diff --git a/fsck.c b/fsck.c
index 0b8b20b6c4..4dfe65f715 100644
--- a/fsck.c
+++ b/fsck.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "object-store.h"
 #include "object.h"
 #include "blob.h"
 #include "tree.h"
@@ -795,7 +796,7 @@ static int fsck_commit_buffer(struct commit *commit, const char *buffer,
 		buffer = p + 1;
 		parent_line_count++;
 	}
-	graft = lookup_commit_graft(&commit->object.oid);
+	graft = lookup_commit_graft(the_repository, &commit->object.oid);
 	parent_count = commit_list_count(commit->parents);
 	if (graft) {
 		if (graft->nr_parent == -1 && !parent_count)
diff --git a/git.c b/git.c
index 9dbe6ffaa7..3fded74519 100644
--- a/git.c
+++ b/git.c
@@ -267,7 +267,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
 		} else if (!strcmp(cmd, "--shallow-file")) {
 			(*argv)++;
 			(*argc)--;
-			set_alternate_shallow_file((*argv)[0], 1);
+			set_alternate_shallow_file(the_repository, (*argv)[0], 1);
 			if (envchanged)
 				*envchanged = 1;
 		} else if (!strcmp(cmd, "-C")) {
diff --git a/grep.c b/grep.c
index 7c1b8e2e8b..7e2f440955 100644
--- a/grep.c
+++ b/grep.c
@@ -1,6 +1,7 @@
 #include "cache.h"
 #include "config.h"
 #include "grep.h"
+#include "object-store.h"
 #include "userdiff.h"
 #include "xdiff-interface.h"
 #include "diff.h"
diff --git a/list-objects-filter.c b/list-objects-filter.c
index 5b14d2711a..a0ba78b20c 100644
--- a/list-objects-filter.c
+++ b/list-objects-filter.c
@@ -11,6 +11,7 @@
 #include "list-objects-filter.h"
 #include "list-objects-filter-options.h"
 #include "oidset.h"
+#include "object-store.h"
 
 /* Remember to update object flag allocation in object.h */
 /*
diff --git a/list-objects.c b/list-objects.c
index 3eec510357..3e5e1992eb 100644
--- a/list-objects.c
+++ b/list-objects.c
@@ -10,6 +10,7 @@
 #include "list-objects-filter.h"
 #include "list-objects-filter-options.h"
 #include "packfile.h"
+#include "object-store.h"
 
 static void process_blob(struct rev_info *revs,
 			 struct blob *blob,
diff --git a/log-tree.c b/log-tree.c
index d3a43e29cd..4a3907fea0 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -1,6 +1,7 @@
 #include "cache.h"
 #include "config.h"
 #include "diff.h"
+#include "object-store.h"
 #include "commit.h"
 #include "tag.h"
 #include "graph.h"
diff --git a/mailmap.c b/mailmap.c
index 13f0d2884e..962fd86d6d 100644
--- a/mailmap.c
+++ b/mailmap.c
@@ -1,6 +1,7 @@
 #include "cache.h"
 #include "string-list.h"
 #include "mailmap.h"
+#include "object-store.h"
 
 #define DEBUG_MAILMAP 0
 #if DEBUG_MAILMAP
diff --git a/match-trees.c b/match-trees.c
index 72cc2baa3f..4cdeff53e1 100644
--- a/match-trees.c
+++ b/match-trees.c
@@ -1,6 +1,7 @@
 #include "cache.h"
 #include "tree.h"
 #include "tree-walk.h"
+#include "object-store.h"
 
 static int score_missing(unsigned mode, const char *path)
 {
diff --git a/merge-blobs.c b/merge-blobs.c
index fa49c17287..fabb8c19ce 100644
--- a/merge-blobs.c
+++ b/merge-blobs.c
@@ -4,6 +4,7 @@
 #include "ll-merge.h"
 #include "blob.h"
 #include "merge-blobs.h"
+#include "object-store.h"
 
 static int fill_mmfile_blob(mmfile_t *f, struct blob *obj)
 {
diff --git a/merge-recursive.c b/merge-recursive.c
index 8f42a999d9..113c1d6962 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -8,6 +8,7 @@
 #include "advice.h"
 #include "lockfile.h"
 #include "cache-tree.h"
+#include "object-store.h"
 #include "commit.h"
 #include "blob.h"
 #include "builtin.h"
diff --git a/notes-cache.c b/notes-cache.c
index e61988e503..d577003177 100644
--- a/notes-cache.c
+++ b/notes-cache.c
@@ -1,5 +1,6 @@
 #include "cache.h"
 #include "notes-cache.h"
+#include "object-store.h"
 #include "commit.h"
 #include "refs.h"
 
diff --git a/notes-merge.c b/notes-merge.c
index d613e06574..9cc2ee16a8 100644
--- a/notes-merge.c
+++ b/notes-merge.c
@@ -1,6 +1,7 @@
 #include "cache.h"
 #include "commit.h"
 #include "refs.h"
+#include "object-store.h"
 #include "diff.h"
 #include "diffcore.h"
 #include "xdiff-interface.h"
diff --git a/notes.c b/notes.c
index a386d450c4..32d3dbcc1e 100644
--- a/notes.c
+++ b/notes.c
@@ -1,6 +1,7 @@
 #include "cache.h"
 #include "config.h"
 #include "notes.h"
+#include "object-store.h"
 #include "blob.h"
 #include "tree.h"
 #include "utf8.h"
diff --git a/object-store.h b/object-store.h
index d683112fd7..a3db17bbf5 100644
--- a/object-store.h
+++ b/object-store.h
@@ -139,4 +139,121 @@ void sha1_file_name(struct repository *r, struct strbuf *buf, const unsigned cha
 
 void *map_sha1_file(struct repository *r, const unsigned char *sha1, unsigned long *size);
 
+extern void *read_object_file_extended(const struct object_id *oid,
+				       enum object_type *type,
+				       unsigned long *size, int lookup_replace);
+static inline void *read_object_file(const struct object_id *oid, enum object_type *type, unsigned long *size)
+{
+	return read_object_file_extended(oid, type, size, 1);
+}
+
+/* Read and unpack an object file into memory, write memory to an object file */
+int oid_object_info(struct repository *r, const struct object_id *, unsigned long *);
+
+extern int hash_object_file(const void *buf, unsigned long len,
+			    const char *type, struct object_id *oid);
+
+extern int write_object_file(const void *buf, unsigned long len,
+			     const char *type, struct object_id *oid);
+
+extern int hash_object_file_literally(const void *buf, unsigned long len,
+				      const char *type, struct object_id *oid,
+				      unsigned flags);
+
+extern int pretend_object_file(void *, unsigned long, enum object_type,
+			       struct object_id *oid);
+
+extern int force_object_loose(const struct object_id *oid, time_t mtime);
+
+/*
+ * Open the loose object at path, check its hash, and return the contents,
+ * type, and size. If the object is a blob, then "contents" may return NULL,
+ * to allow streaming of large blobs.
+ *
+ * Returns 0 on success, negative on error (details may be written to stderr).
+ */
+int read_loose_object(const char *path,
+		      const struct object_id *expected_oid,
+		      enum object_type *type,
+		      unsigned long *size,
+		      void **contents);
+
+/*
+ * Convenience for sha1_object_info_extended() with a NULL struct
+ * object_info. OBJECT_INFO_SKIP_CACHED is automatically set; pass
+ * nonzero flags to also set other flags.
+ */
+extern int has_sha1_file_with_flags(const unsigned char *sha1, int flags);
+static inline int has_sha1_file(const unsigned char *sha1)
+{
+	return has_sha1_file_with_flags(sha1, 0);
+}
+
+/* Same as the above, except for struct object_id. */
+extern int has_object_file(const struct object_id *oid);
+extern int has_object_file_with_flags(const struct object_id *oid, int flags);
+
+/*
+ * Return true iff an alternate object database has a loose object
+ * with the specified name.  This function does not respect replace
+ * references.
+ */
+extern int has_loose_object_nonlocal(const struct object_id *);
+
+extern void assert_oid_type(const struct object_id *oid, enum object_type expect);
+
+struct object_info {
+	/* Request */
+	enum object_type *typep;
+	unsigned long *sizep;
+	off_t *disk_sizep;
+	unsigned char *delta_base_sha1;
+	struct strbuf *type_name;
+	void **contentp;
+
+	/* Response */
+	enum {
+		OI_CACHED,
+		OI_LOOSE,
+		OI_PACKED,
+		OI_DBCACHED
+	} whence;
+	union {
+		/*
+		 * struct {
+		 * 	... Nothing to expose in this case
+		 * } cached;
+		 * struct {
+		 * 	... Nothing to expose in this case
+		 * } loose;
+		 */
+		struct {
+			struct packed_git *pack;
+			off_t offset;
+			unsigned int is_delta;
+		} packed;
+	} u;
+};
+
+/*
+ * Initializer for a "struct object_info" that wants no items. You may
+ * also memset() the memory to all-zeroes.
+ */
+#define OBJECT_INFO_INIT {NULL}
+
+/* Invoke lookup_replace_object() on the given hash */
+#define OBJECT_INFO_LOOKUP_REPLACE 1
+/* Allow reading from a loose object file of unknown/bogus type */
+#define OBJECT_INFO_ALLOW_UNKNOWN_TYPE 2
+/* Do not check cached storage */
+#define OBJECT_INFO_SKIP_CACHED 4
+/* Do not retry packed storage after checking packed and loose storage */
+#define OBJECT_INFO_QUICK 8
+/* Do not check loose object */
+#define OBJECT_INFO_IGNORE_LOOSE 16
+
+int oid_object_info_extended(struct repository *r,
+			     const struct object_id *,
+			     struct object_info *, unsigned flags);
+
 #endif /* OBJECT_STORE_H */
diff --git a/object.c b/object.c
index 10d167825e..9b0f819fae 100644
--- a/object.c
+++ b/object.c
@@ -1,6 +1,7 @@
 #include "cache.h"
 #include "object.h"
 #include "replace-object.h"
+#include "object-store.h"
 #include "blob.h"
 #include "tree.h"
 #include "commit.h"
@@ -463,6 +464,9 @@ struct parsed_object_pool *parsed_object_pool_new(void)
 	o->tag_state = allocate_alloc_state();
 	o->object_state = allocate_alloc_state();
 
+	o->is_shallow = -1;
+	o->shallow_stat = xcalloc(1, sizeof(*o->shallow_stat));
+
 	return o;
 }
 
diff --git a/object.h b/object.h
index 47d1b49022..1b96073601 100644
--- a/object.h
+++ b/object.h
@@ -12,6 +12,16 @@ struct parsed_object_pool {
 	struct alloc_state *tag_state;
 	struct alloc_state *object_state;
 	unsigned commit_count;
+
+	/* parent substitutions from .git/info/grafts and .git/shallow */
+	struct commit_graft **grafts;
+	int grafts_alloc, grafts_nr;
+
+	int is_shallow;
+	struct stat_validity *shallow_stat;
+	char *alternate_shallow_file;
+
+	int commit_graft_prepared;
 };
 
 struct parsed_object_pool *parsed_object_pool_new(void);
diff --git a/pack-bitmap-write.c b/pack-bitmap-write.c
index 7b2dc3e7dc..953c5dd84d 100644
--- a/pack-bitmap-write.c
+++ b/pack-bitmap-write.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "object-store.h"
 #include "commit.h"
 #include "tag.h"
 #include "diff.h"
diff --git a/packfile.h b/packfile.h
index e0a38aba93..cc7eaffe1b 100644
--- a/packfile.h
+++ b/packfile.h
@@ -3,6 +3,11 @@
 
 #include "oidset.h"
 
+/* in object-store.h */
+struct packed_git;
+struct object_info;
+enum object_type;
+
 /*
  * Generate the filename to be used for a pack file with checksum "sha1" and
  * extension "ext". The result is written into the strbuf "buf", overwriting
diff --git a/path.c b/path.c
index 7f109f6618..34f0f98349 100644
--- a/path.c
+++ b/path.c
@@ -1442,12 +1442,12 @@ char *xdg_cache_home(const char *filename)
 	return NULL;
 }
 
-GIT_PATH_FUNC(git_path_cherry_pick_head, "CHERRY_PICK_HEAD")
-GIT_PATH_FUNC(git_path_revert_head, "REVERT_HEAD")
-GIT_PATH_FUNC(git_path_squash_msg, "SQUASH_MSG")
-GIT_PATH_FUNC(git_path_merge_msg, "MERGE_MSG")
-GIT_PATH_FUNC(git_path_merge_rr, "MERGE_RR")
-GIT_PATH_FUNC(git_path_merge_mode, "MERGE_MODE")
-GIT_PATH_FUNC(git_path_merge_head, "MERGE_HEAD")
-GIT_PATH_FUNC(git_path_fetch_head, "FETCH_HEAD")
-GIT_PATH_FUNC(git_path_shallow, "shallow")
+REPO_GIT_PATH_FUNC(cherry_pick_head, "CHERRY_PICK_HEAD")
+REPO_GIT_PATH_FUNC(revert_head, "REVERT_HEAD")
+REPO_GIT_PATH_FUNC(squash_msg, "SQUASH_MSG")
+REPO_GIT_PATH_FUNC(merge_msg, "MERGE_MSG")
+REPO_GIT_PATH_FUNC(merge_rr, "MERGE_RR")
+REPO_GIT_PATH_FUNC(merge_mode, "MERGE_MODE")
+REPO_GIT_PATH_FUNC(merge_head, "MERGE_HEAD")
+REPO_GIT_PATH_FUNC(fetch_head, "FETCH_HEAD")
+REPO_GIT_PATH_FUNC(shallow, "shallow")
diff --git a/path.h b/path.h
index 1ccd0373c9..5263f40519 100644
--- a/path.h
+++ b/path.h
@@ -160,14 +160,36 @@ extern void report_linked_checkout_garbage(void);
 		return ret; \
 	}
 
-const char *git_path_cherry_pick_head(void);
-const char *git_path_revert_head(void);
-const char *git_path_squash_msg(void);
-const char *git_path_merge_msg(void);
-const char *git_path_merge_rr(void);
-const char *git_path_merge_mode(void);
-const char *git_path_merge_head(void);
-const char *git_path_fetch_head(void);
-const char *git_path_shallow(void);
+#define REPO_GIT_PATH_FUNC(var, filename) \
+	const char *git_path_##var(struct repository *r) \
+	{ \
+		if (!r->cached_paths.var) \
+			r->cached_paths.var = git_pathdup(filename); \
+		return r->cached_paths.var; \
+	}
+
+struct path_cache {
+	const char *cherry_pick_head;
+	const char *revert_head;
+	const char *squash_msg;
+	const char *merge_msg;
+	const char *merge_rr;
+	const char *merge_mode;
+	const char *merge_head;
+	const char *fetch_head;
+	const char *shallow;
+};
+
+#define PATH_CACHE_INIT { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
+
+const char *git_path_cherry_pick_head(struct repository *r);
+const char *git_path_revert_head(struct repository *r);
+const char *git_path_squash_msg(struct repository *r);
+const char *git_path_merge_msg(struct repository *r);
+const char *git_path_merge_rr(struct repository *r);
+const char *git_path_merge_mode(struct repository *r);
+const char *git_path_merge_head(struct repository *r);
+const char *git_path_fetch_head(struct repository *r);
+const char *git_path_shallow(struct repository *r);
 
 #endif /* PATH_H */
diff --git a/read-cache.c b/read-cache.c
index 372588260e..e865254bea 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -11,6 +11,7 @@
 #include "cache-tree.h"
 #include "refs.h"
 #include "dir.h"
+#include "object-store.h"
 #include "tree.h"
 #include "commit.h"
 #include "blob.h"
diff --git a/ref-filter.c b/ref-filter.c
index fa3685d91f..0ab893a250 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -3,6 +3,7 @@
 #include "parse-options.h"
 #include "refs.h"
 #include "wildmatch.h"
+#include "object-store.h"
 #include "commit.h"
 #include "remote.h"
 #include "color.h"
diff --git a/refs.c b/refs.c
index 0eb379f931..3b4508a97a 100644
--- a/refs.c
+++ b/refs.c
@@ -9,6 +9,7 @@
 #include "iterator.h"
 #include "refs.h"
 #include "refs/refs-internal.h"
+#include "object-store.h"
 #include "object.h"
 #include "tag.h"
 #include "submodule.h"
diff --git a/remote-testsvn.c b/remote-testsvn.c
index 444d98059f..3af708c5b6 100644
--- a/remote-testsvn.c
+++ b/remote-testsvn.c
@@ -1,6 +1,7 @@
 #include "cache.h"
 #include "refs.h"
 #include "remote.h"
+#include "object-store.h"
 #include "strbuf.h"
 #include "url.h"
 #include "exec-cmd.h"
diff --git a/remote.c b/remote.c
index abe80c1397..539285fbdf 100644
--- a/remote.c
+++ b/remote.c
@@ -3,6 +3,7 @@
 #include "remote.h"
 #include "refs.h"
 #include "refspec.h"
+#include "object-store.h"
 #include "commit.h"
 #include "diff.h"
 #include "revision.h"
diff --git a/repository.h b/repository.h
index dba3ddbfdd..b9413be50c 100644
--- a/repository.h
+++ b/repository.h
@@ -38,6 +38,11 @@ struct repository {
 	/* The store in which the refs are held. */
 	struct ref_store *refs;
 
+	/*
+	 * Contains path to often used file names.
+	 */
+	struct path_cache cached_paths;
+
 	/*
 	 * Path to the repository's graft file.
 	 * Cannot be NULL after initialization.
diff --git a/rerere.c b/rerere.c
index e0862e2778..16c8aac621 100644
--- a/rerere.c
+++ b/rerere.c
@@ -9,6 +9,7 @@
 #include "ll-merge.h"
 #include "attr.h"
 #include "pathspec.h"
+#include "object-store.h"
 #include "sha1-lookup.h"
 
 #define RESOLVED 0
@@ -200,7 +201,7 @@ static struct rerere_id *new_rerere_id(unsigned char *sha1)
 static void read_rr(struct string_list *rr)
 {
 	struct strbuf buf = STRBUF_INIT;
-	FILE *in = fopen_or_warn(git_path_merge_rr(), "r");
+	FILE *in = fopen_or_warn(git_path_merge_rr(the_repository), "r");
 
 	if (!in)
 		return;
@@ -895,7 +896,8 @@ int setup_rerere(struct string_list *merge_rr, int flags)
 	if (flags & RERERE_READONLY)
 		fd = 0;
 	else
-		fd = hold_lock_file_for_update(&write_lock, git_path_merge_rr(),
+		fd = hold_lock_file_for_update(&write_lock,
+					       git_path_merge_rr(the_repository),
 					       LOCK_DIE_ON_ERROR);
 	read_rr(merge_rr);
 	return fd;
@@ -1245,6 +1247,6 @@ void rerere_clear(struct string_list *merge_rr)
 			rmdir(rerere_path(id, NULL));
 		}
 	}
-	unlink_or_warn(git_path_merge_rr());
+	unlink_or_warn(git_path_merge_rr(the_repository));
 	rollback_lock_file(&write_lock);
 }
diff --git a/revision.c b/revision.c
index 0afae4744a..72abe235e4 100644
--- a/revision.c
+++ b/revision.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "object-store.h"
 #include "tag.h"
 #include "blob.h"
 #include "tree.h"
diff --git a/send-pack.c b/send-pack.c
index 19025a7aca..e920ca57df 100644
--- a/send-pack.c
+++ b/send-pack.c
@@ -2,6 +2,7 @@
 #include "config.h"
 #include "commit.h"
 #include "refs.h"
+#include "object-store.h"
 #include "pkt-line.h"
 #include "sideband.h"
 #include "run-command.h"
@@ -75,7 +76,7 @@ static int pack_objects(int fd, struct ref *refs, struct oid_array *extra, struc
 		argv_array_push(&po.args, "-q");
 	if (args->progress)
 		argv_array_push(&po.args, "--progress");
-	if (is_repository_shallow())
+	if (is_repository_shallow(the_repository))
 		argv_array_push(&po.args, "--shallow");
 	po.in = -1;
 	po.out = args->stateless_rpc ? -1 : fd;
@@ -220,7 +221,7 @@ static int advertise_shallow_grafts_cb(const struct commit_graft *graft, void *c
 
 static void advertise_shallow_grafts_buf(struct strbuf *sb)
 {
-	if (!is_repository_shallow())
+	if (!is_repository_shallow(the_repository))
 		return;
 	for_each_commit_graft(advertise_shallow_grafts_cb, sb);
 }
@@ -537,7 +538,7 @@ int send_pack(struct send_pack_args *args,
 	}
 
 	if (args->stateless_rpc) {
-		if (!args->dry_run && (cmds_sent || is_repository_shallow())) {
+		if (!args->dry_run && (cmds_sent || is_repository_shallow(the_repository))) {
 			packet_buf_flush(&req_buf);
 			send_sideband(out, -1, req_buf.buf, req_buf.len, LARGE_PACKET_MAX);
 		}
diff --git a/sequencer.c b/sequencer.c
index 5354d4d51e..0a291c91fe 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -2,6 +2,7 @@
 #include "config.h"
 #include "lockfile.h"
 #include "dir.h"
+#include "object-store.h"
 #include "object.h"
 #include "commit.h"
 #include "sequencer.h"
@@ -357,7 +358,7 @@ static void print_advice(int show_hint, struct replay_opts *opts)
 		 * (typically rebase --interactive) wants to take care
 		 * of the commit itself so remove CHERRY_PICK_HEAD
 		 */
-		unlink(git_path_cherry_pick_head());
+		unlink(git_path_cherry_pick_head(the_repository));
 		return;
 	}
 
@@ -1324,8 +1325,8 @@ static int do_commit(const char *msg_file, const char *author,
 				    &oid);
 		strbuf_release(&sb);
 		if (!res) {
-			unlink(git_path_cherry_pick_head());
-			unlink(git_path_merge_msg());
+			unlink(git_path_cherry_pick_head(the_repository));
+			unlink(git_path_merge_msg(the_repository));
 			if (!is_rebase_i(opts))
 				print_commit_summary(NULL, &oid,
 						SUMMARY_SHOW_AUTHOR_DATE);
@@ -1613,7 +1614,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
 		struct replay_opts *opts, int final_fixup)
 {
 	unsigned int flags = opts->edit ? EDIT_MSG : 0;
-	const char *msg_file = opts->edit ? NULL : git_path_merge_msg();
+	const char *msg_file = opts->edit ? NULL : git_path_merge_msg(the_repository);
 	struct object_id head;
 	struct commit *base, *next, *parent;
 	const char *base_label, *next_label;
@@ -1755,12 +1756,12 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
 			flags |= CLEANUP_MSG;
 			msg_file = rebase_path_fixup_msg();
 		} else {
-			const char *dest = git_path_squash_msg();
+			const char *dest = git_path_squash_msg(the_repository);
 			unlink(dest);
 			if (copy_file(dest, rebase_path_squash_msg(), 0666))
 				return error(_("could not rename '%s' to '%s'"),
 					     rebase_path_squash_msg(), dest);
-			unlink(git_path_merge_msg());
+			unlink(git_path_merge_msg(the_repository));
 			msg_file = dest;
 			flags |= EDIT_MSG;
 		}
@@ -1778,13 +1779,13 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
 			goto leave;
 
 		res |= write_message(msgbuf.buf, msgbuf.len,
-				     git_path_merge_msg(), 0);
+				     git_path_merge_msg(the_repository), 0);
 	} else {
 		struct commit_list *common = NULL;
 		struct commit_list *remotes = NULL;
 
 		res = write_message(msgbuf.buf, msgbuf.len,
-				    git_path_merge_msg(), 0);
+				    git_path_merge_msg(the_repository), 0);
 
 		commit_list_insert(base, &common);
 		commit_list_insert(next, &remotes);
@@ -2394,8 +2395,8 @@ static int rollback_single_pick(void)
 {
 	struct object_id head_oid;
 
-	if (!file_exists(git_path_cherry_pick_head()) &&
-	    !file_exists(git_path_revert_head()))
+	if (!file_exists(git_path_cherry_pick_head(the_repository)) &&
+	    !file_exists(git_path_revert_head(the_repository)))
 		return error(_("no cherry-pick or revert in progress"));
 	if (read_ref_full("HEAD", 0, &head_oid, NULL))
 		return error(_("cannot resolve HEAD"));
@@ -2620,10 +2621,11 @@ static int error_failed_squash(struct commit *commit,
 	if (copy_file(rebase_path_message(), rebase_path_squash_msg(), 0666))
 		return error(_("could not copy '%s' to '%s'"),
 			rebase_path_squash_msg(), rebase_path_message());
-	unlink(git_path_merge_msg());
-	if (copy_file(git_path_merge_msg(), rebase_path_message(), 0666))
+	unlink(git_path_merge_msg(the_repository));
+	if (copy_file(git_path_merge_msg(the_repository), rebase_path_message(), 0666))
 		return error(_("could not copy '%s' to '%s'"),
-			     rebase_path_message(), git_path_merge_msg());
+			     rebase_path_message(),
+			     git_path_merge_msg(the_repository));
 	return error_with_patch(commit, subject, subject_len, opts, 1, 0);
 }
 
@@ -2913,11 +2915,11 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
 		write_author_script(message);
 		find_commit_subject(message, &body);
 		len = strlen(body);
-		ret = write_message(body, len, git_path_merge_msg(), 0);
+		ret = write_message(body, len, git_path_merge_msg(the_repository), 0);
 		unuse_commit_buffer(commit, message);
 		if (ret) {
 			error_errno(_("could not write '%s'"),
-				    git_path_merge_msg());
+				    git_path_merge_msg(the_repository));
 			goto leave_merge;
 		}
 	} else {
@@ -2938,11 +2940,11 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
 			len = buf.len;
 		}
 
-		ret = write_message(p, len, git_path_merge_msg(), 0);
+		ret = write_message(p, len, git_path_merge_msg(the_repository), 0);
 		strbuf_release(&buf);
 		if (ret) {
 			error_errno(_("could not write '%s'"),
-				    git_path_merge_msg());
+				    git_path_merge_msg(the_repository));
 			goto leave_merge;
 		}
 	}
@@ -2979,8 +2981,8 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
 	}
 
 	write_message(oid_to_hex(&merge_commit->object.oid), GIT_SHA1_HEXSZ,
-		      git_path_merge_head(), 0);
-	write_message("no-ff", 5, git_path_merge_mode(), 0);
+		      git_path_merge_head(the_repository), 0);
+	write_message("no-ff", 5, git_path_merge_mode(the_repository), 0);
 
 	bases = get_merge_bases(head_commit, merge_commit);
 	if (bases && !oidcmp(&merge_commit->object.oid,
@@ -3034,7 +3036,7 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
 		 * value (a negative one would indicate that the `merge`
 		 * command needs to be rescheduled).
 		 */
-		ret = !!run_git_commit(git_path_merge_msg(), opts,
+		ret = !!run_git_commit(git_path_merge_msg(the_repository), opts,
 				     run_commit_flags);
 
 leave_merge:
@@ -3401,8 +3403,8 @@ static int continue_single_pick(void)
 {
 	const char *argv[] = { "commit", NULL };
 
-	if (!file_exists(git_path_cherry_pick_head()) &&
-	    !file_exists(git_path_revert_head()))
+	if (!file_exists(git_path_cherry_pick_head(the_repository)) &&
+	    !file_exists(git_path_revert_head(the_repository)))
 		return error(_("no cherry-pick or revert in progress"));
 	return run_command_v_opt(argv, RUN_GIT_CMD);
 }
@@ -3505,7 +3507,7 @@ static int commit_staged_changes(struct replay_opts *opts,
 	}
 
 	if (is_clean) {
-		const char *cherry_pick_head = git_path_cherry_pick_head();
+		const char *cherry_pick_head = git_path_cherry_pick_head(the_repository);
 
 		if (file_exists(cherry_pick_head) && unlink(cherry_pick_head))
 			return error(_("could not remove CHERRY_PICK_HEAD"));
@@ -3555,8 +3557,8 @@ int sequencer_continue(struct replay_opts *opts)
 
 	if (!is_rebase_i(opts)) {
 		/* Verify that the conflict has been resolved */
-		if (file_exists(git_path_cherry_pick_head()) ||
-		    file_exists(git_path_revert_head())) {
+		if (file_exists(git_path_cherry_pick_head(the_repository)) ||
+		    file_exists(git_path_revert_head(the_repository))) {
 			res = continue_single_pick();
 			if (res)
 				goto release_todo_list;
diff --git a/shallow.c b/shallow.c
index 79439a818f..e53067cded 100644
--- a/shallow.c
+++ b/shallow.c
@@ -1,6 +1,8 @@
 #include "cache.h"
+#include "repository.h"
 #include "tempfile.h"
 #include "lockfile.h"
+#include "object-store.h"
 #include "commit.h"
 #include "tag.h"
 #include "pkt-line.h"
@@ -13,22 +15,19 @@
 #include "revision.h"
 #include "list-objects.h"
 #include "commit-slab.h"
+#include "repository.h"
 
-static int is_shallow = -1;
-static struct stat_validity shallow_stat;
-static char *alternate_shallow_file;
-
-void set_alternate_shallow_file(const char *path, int override)
+void set_alternate_shallow_file(struct repository *r, const char *path, int override)
 {
-	if (is_shallow != -1)
+	if (r->parsed_objects->is_shallow != -1)
 		BUG("is_repository_shallow must not be called before set_alternate_shallow_file");
-	if (alternate_shallow_file && !override)
+	if (r->parsed_objects->alternate_shallow_file && !override)
 		return;
-	free(alternate_shallow_file);
-	alternate_shallow_file = xstrdup_or_null(path);
+	free(r->parsed_objects->alternate_shallow_file);
+	r->parsed_objects->alternate_shallow_file = xstrdup_or_null(path);
 }
 
-int register_shallow(const struct object_id *oid)
+int register_shallow(struct repository *r, const struct object_id *oid)
 {
 	struct commit_graft *graft =
 		xmalloc(sizeof(struct commit_graft));
@@ -38,41 +37,41 @@ int register_shallow(const struct object_id *oid)
 	graft->nr_parent = -1;
 	if (commit && commit->object.parsed)
 		commit->parents = NULL;
-	return register_commit_graft(graft, 0);
+	return register_commit_graft(r, graft, 0);
 }
 
-int is_repository_shallow(void)
+int is_repository_shallow(struct repository *r)
 {
 	FILE *fp;
 	char buf[1024];
-	const char *path = alternate_shallow_file;
+	const char *path = r->parsed_objects->alternate_shallow_file;
 
-	if (is_shallow >= 0)
-		return is_shallow;
+	if (r->parsed_objects->is_shallow >= 0)
+		return r->parsed_objects->is_shallow;
 
 	if (!path)
-		path = git_path_shallow();
+		path = git_path_shallow(r);
 	/*
 	 * fetch-pack sets '--shallow-file ""' as an indicator that no
 	 * shallow file should be used. We could just open it and it
 	 * will likely fail. But let's do an explicit check instead.
 	 */
 	if (!*path || (fp = fopen(path, "r")) == NULL) {
-		stat_validity_clear(&shallow_stat);
-		is_shallow = 0;
-		return is_shallow;
+		stat_validity_clear(r->parsed_objects->shallow_stat);
+		r->parsed_objects->is_shallow = 0;
+		return r->parsed_objects->is_shallow;
 	}
-	stat_validity_update(&shallow_stat, fileno(fp));
-	is_shallow = 1;
+	stat_validity_update(r->parsed_objects->shallow_stat, fileno(fp));
+	r->parsed_objects->is_shallow = 1;
 
 	while (fgets(buf, sizeof(buf), fp)) {
 		struct object_id oid;
 		if (get_oid_hex(buf, &oid))
 			die("bad shallow line: %s", buf);
-		register_shallow(&oid);
+		register_shallow(r, &oid);
 	}
 	fclose(fp);
-	return is_shallow;
+	return r->parsed_objects->is_shallow;
 }
 
 /*
@@ -116,8 +115,8 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
 		parse_commit_or_die(commit);
 		cur_depth++;
 		if ((depth != INFINITE_DEPTH && cur_depth >= depth) ||
-		    (is_repository_shallow() && !commit->parents &&
-		     (graft = lookup_commit_graft(&commit->object.oid)) != NULL &&
+		    (is_repository_shallow(the_repository) && !commit->parents &&
+		     (graft = lookup_commit_graft(the_repository, &commit->object.oid)) != NULL &&
 		     graft->nr_parent < 0)) {
 			commit_list_insert(commit, &result);
 			commit->object.flags |= shallow_flag;
@@ -181,7 +180,7 @@ struct commit_list *get_shallow_commits_by_rev_list(int ac, const char **av,
 	 */
 	clear_object_flags(both_flags);
 
-	is_repository_shallow(); /* make sure shallows are read */
+	is_repository_shallow(the_repository); /* make sure shallows are read */
 
 	init_revisions(&revs, NULL);
 	save_commit_buffer = 0;
@@ -234,12 +233,12 @@ struct commit_list *get_shallow_commits_by_rev_list(int ac, const char **av,
 	return result;
 }
 
-static void check_shallow_file_for_update(void)
+static void check_shallow_file_for_update(struct repository *r)
 {
-	if (is_shallow == -1)
+	if (r->parsed_objects->is_shallow == -1)
 		BUG("shallow must be initialized by now");
 
-	if (!stat_validity_check(&shallow_stat, git_path_shallow()))
+	if (!stat_validity_check(r->parsed_objects->shallow_stat, git_path_shallow(the_repository)))
 		die("shallow file has changed since we read it");
 }
 
@@ -334,9 +333,10 @@ void setup_alternate_shallow(struct lock_file *shallow_lock,
 	struct strbuf sb = STRBUF_INIT;
 	int fd;
 
-	fd = hold_lock_file_for_update(shallow_lock, git_path_shallow(),
+	fd = hold_lock_file_for_update(shallow_lock,
+				       git_path_shallow(the_repository),
 				       LOCK_DIE_ON_ERROR);
-	check_shallow_file_for_update();
+	check_shallow_file_for_update(the_repository);
 	if (write_shallow_commits(&sb, 0, extra)) {
 		if (write_in_full(fd, sb.buf, sb.len) < 0)
 			die_errno("failed to write to %s",
@@ -361,7 +361,7 @@ static int advertise_shallow_grafts_cb(const struct commit_graft *graft, void *c
 
 void advertise_shallow_grafts(int fd)
 {
-	if (!is_repository_shallow())
+	if (!is_repository_shallow(the_repository))
 		return;
 	for_each_commit_graft(advertise_shallow_grafts_cb, &fd);
 }
@@ -381,16 +381,17 @@ void prune_shallow(int show_only)
 		strbuf_release(&sb);
 		return;
 	}
-	fd = hold_lock_file_for_update(&shallow_lock, git_path_shallow(),
+	fd = hold_lock_file_for_update(&shallow_lock,
+				       git_path_shallow(the_repository),
 				       LOCK_DIE_ON_ERROR);
-	check_shallow_file_for_update();
+	check_shallow_file_for_update(the_repository);
 	if (write_shallow_commits_1(&sb, 0, NULL, SEEN_ONLY)) {
 		if (write_in_full(fd, sb.buf, sb.len) < 0)
 			die_errno("failed to write to %s",
 				  get_lock_file_path(&shallow_lock));
 		commit_lock_file(&shallow_lock);
 	} else {
-		unlink(git_path_shallow());
+		unlink(git_path_shallow(the_repository));
 		rollback_lock_file(&shallow_lock);
 	}
 	strbuf_release(&sb);
@@ -415,7 +416,8 @@ void prepare_shallow_info(struct shallow_info *info, struct oid_array *sa)
 	for (i = 0; i < sa->nr; i++) {
 		if (has_object_file(sa->oid + i)) {
 			struct commit_graft *graft;
-			graft = lookup_commit_graft(&sa->oid[i]);
+			graft = lookup_commit_graft(the_repository,
+						    &sa->oid[i]);
 			if (graft && graft->nr_parent < 0)
 				continue;
 			info->ours[info->nr_ours++] = i;
diff --git a/submodule-config.c b/submodule-config.c
index 388ef1f892..ca324a9e37 100644
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -4,6 +4,7 @@
 #include "submodule-config.h"
 #include "submodule.h"
 #include "strbuf.h"
+#include "object-store.h"
 #include "parse-options.h"
 
 /*
diff --git a/tag.c b/tag.c
index 7c12426b4e..3be7206e92 100644
--- a/tag.c
+++ b/tag.c
@@ -1,5 +1,6 @@
 #include "cache.h"
 #include "tag.h"
+#include "object-store.h"
 #include "commit.h"
 #include "tree.h"
 #include "blob.h"
diff --git a/tree-walk.c b/tree-walk.c
index 8f5090862b..ecd6e53b85 100644
--- a/tree-walk.c
+++ b/tree-walk.c
@@ -2,6 +2,7 @@
 #include "tree-walk.h"
 #include "unpack-trees.h"
 #include "dir.h"
+#include "object-store.h"
 #include "tree.h"
 #include "pathspec.h"
 
diff --git a/tree.c b/tree.c
index 2c9c49725c..bc7e99020d 100644
--- a/tree.c
+++ b/tree.c
@@ -2,6 +2,7 @@
 #include "cache.h"
 #include "cache-tree.h"
 #include "tree.h"
+#include "object-store.h"
 #include "blob.h"
 #include "commit.h"
 #include "tag.h"
diff --git a/unpack-trees.c b/unpack-trees.c
index 3a85a02a77..66741130ae 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -16,6 +16,7 @@
 #include "submodule.h"
 #include "submodule-config.h"
 #include "fsmonitor.h"
+#include "object-store.h"
 #include "fetch-object.h"
 
 /*
diff --git a/upload-pack.c b/upload-pack.c
index 87c6722ea5..936acabbdd 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -3,6 +3,7 @@
 #include "refs.h"
 #include "pkt-line.h"
 #include "sideband.h"
+#include "object-store.h"
 #include "tag.h"
 #include "object.h"
 #include "commit.h"
@@ -658,7 +659,7 @@ static void send_shallow(struct commit_list *result)
 		if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
 			packet_write_fmt(1, "shallow %s",
 					 oid_to_hex(&object->oid));
-			register_shallow(&object->oid);
+			register_shallow(the_repository, &object->oid);
 			shallow_nr++;
 		}
 		result = result->next;
@@ -695,14 +696,14 @@ static void send_unshallow(const struct object_array *shallows)
 			add_object_array(object, NULL, &extra_edge_obj);
 		}
 		/* make sure commit traversal conforms to client */
-		register_shallow(&object->oid);
+		register_shallow(the_repository, &object->oid);
 	}
 }
 
 static void deepen(int depth, int deepen_relative,
 		   struct object_array *shallows)
 {
-	if (depth == INFINITE_DEPTH && !is_repository_shallow()) {
+	if (depth == INFINITE_DEPTH && !is_repository_shallow(the_repository)) {
 		int i;
 
 		for (i = 0; i < shallows->nr; i++) {
@@ -782,7 +783,8 @@ static int send_shallow_list(int depth, int deepen_rev_list,
 		if (shallows->nr > 0) {
 			int i;
 			for (i = 0; i < shallows->nr; i++)
-				register_shallow(&shallows->objects[i].item->oid);
+				register_shallow(the_repository,
+						 &shallows->objects[i].item->oid);
 		}
 	}
 
@@ -1356,14 +1358,15 @@ static void send_shallow_info(struct upload_pack_data *data)
 {
 	/* No shallow info needs to be sent */
 	if (!data->depth && !data->deepen_rev_list && !data->shallows.nr &&
-	    !is_repository_shallow())
+	    !is_repository_shallow(the_repository))
 		return;
 
 	packet_write_fmt(1, "shallow-info\n");
 
 	if (!send_shallow_list(data->depth, data->deepen_rev_list,
 			       data->deepen_since, &data->deepen_not,
-			       &data->shallows) && is_repository_shallow())
+			       &data->shallows) &&
+	    is_repository_shallow(the_repository))
 		deepen(INFINITE_DEPTH, data->deepen_relative, &data->shallows);
 
 	packet_delim(1);
diff --git a/walker.c b/walker.c
index 0b162a09b9..86359ab0ab 100644
--- a/walker.c
+++ b/walker.c
@@ -1,5 +1,6 @@
 #include "cache.h"
 #include "walker.h"
+#include "object-store.h"
 #include "commit.h"
 #include "tree.h"
 #include "tree-walk.h"
diff --git a/wt-status.c b/wt-status.c
index d1c05145a4..8827a256d3 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -1317,7 +1317,7 @@ static void show_rebase_in_progress(struct wt_status *s,
 			status_printf_ln(s, color,
 				_("  (use \"git rebase --abort\" to check out the original branch)"));
 		}
-	} else if (state->rebase_in_progress || !stat(git_path_merge_msg(), &st)) {
+	} else if (state->rebase_in_progress || !stat(git_path_merge_msg(the_repository), &st)) {
 		print_rebase_state(s, state, color);
 		if (s->hints)
 			status_printf_ln(s, color,
@@ -1552,17 +1552,17 @@ void wt_status_get_state(struct wt_status_state *state,
 	struct stat st;
 	struct object_id oid;
 
-	if (!stat(git_path_merge_head(), &st)) {
+	if (!stat(git_path_merge_head(the_repository), &st)) {
 		state->merge_in_progress = 1;
 	} else if (wt_status_check_rebase(NULL, state)) {
 		;		/* all set */
-	} else if (!stat(git_path_cherry_pick_head(), &st) &&
+	} else if (!stat(git_path_cherry_pick_head(the_repository), &st) &&
 			!get_oid("CHERRY_PICK_HEAD", &oid)) {
 		state->cherry_pick_in_progress = 1;
 		oidcpy(&state->cherry_pick_head_oid, &oid);
 	}
 	wt_status_check_bisect(NULL, state);
-	if (!stat(git_path_revert_head(), &st) &&
+	if (!stat(git_path_revert_head(the_repository), &st) &&
 	    !get_oid("REVERT_HEAD", &oid)) {
 		state->revert_in_progress = 1;
 		oidcpy(&state->revert_head_oid, &oid);
diff --git a/xdiff-interface.c b/xdiff-interface.c
index 9315bc0ede..ec6e574e4a 100644
--- a/xdiff-interface.c
+++ b/xdiff-interface.c
@@ -1,5 +1,6 @@
 #include "cache.h"
 #include "config.h"
+#include "object-store.h"
 #include "xdiff-interface.h"
 #include "xdiff/xtypes.h"
 #include "xdiff/xdiffi.h"