Kill the_index part 1, expose it

@@ -38,13 +38,13 @@ static void chmod_pathspec(struct pathsp
 {
 	int i;
 
-	for (i = 0; i < active_nr; i++) {
-		struct cache_entry *ce = active_cache[i];
+	for (i = 0; i < the_index.cache_nr; i++) {
+		struct cache_entry *ce = the_index.cache[i];
 
 		if (pathspec && !ce_path_match(&the_index, ce, pathspec, NULL))
 			continue;
 
-		if (chmod_cache_entry(ce, flip) < 0)
+		if (chmod_index_entry(&the_index, ce, flip) < 0)
 			fprintf(stderr, "cannot chmod %cx '%s'\n", flip, ce->name);
 	}
 }

@@ -129,8 +129,8 @@ static int renormalize_tracked_files(con
 {
 	int i, retval = 0;
 
-	for (i = 0; i < active_nr; i++) {
-		struct cache_entry *ce = active_cache[i];
+	for (i = 0; i < the_index.cache_nr; i++) {
+		struct cache_entry *ce = the_index.cache[i];
 
 		if (ce_stage(ce))
 			continue; /* do not touch unmerged paths */

@@ -138,7 +138,8 @@ static int renormalize_tracked_files(con
 			continue; /* do not touch non blobs */
 		if (pathspec && !ce_path_match(&the_index, ce, pathspec, NULL))
 			continue;
-		retval |= add_file_to_cache(ce->name, flags | HASH_RENORMALIZE);
+		retval |= add_file_to_index(&the_index, ce->name,
+					    flags | HASH_RENORMALIZE);
 	}
 
 	return retval;

@@ -230,7 +231,7 @@ static int edit_patch(int argc, const ch
 
 	git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
 
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die(_("Could not read the index"));
 
 	init_revisions(&rev, the_repository, prefix);

@@ -445,7 +446,7 @@ int cmd_add(int argc, const char **argv,
 		return 0;
 	}
 
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die(_("index file corrupt"));
 
 	die_in_unpopulated_submodule(&the_index, prefix);

@@ -1144,7 +1144,7 @@ static void refresh_and_write_cache(void
 	struct lock_file lock_file = LOCK_INIT;
 
 	hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
-	refresh_cache(REFRESH_QUIET);
+	refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL);
 	if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
 		die(_("unable to write index file"));
 }

@@ -1505,8 +1505,8 @@ static int run_apply(const struct am_sta
 
 	if (index_file) {
 		/* Reload index as apply_all_patches() will have modified it. */
-		discard_cache();
-		read_cache_from(index_file);
+		discard_index(&the_index);
+		read_index_from(&the_index, index_file, get_git_dir());
 	}
 
 	return 0;

@@ -1548,8 +1548,8 @@ static int fall_back_threeway(const stru
 	if (build_fake_ancestor(state, index_path))
 		return error("could not build fake ancestor");
 
-	discard_cache();
-	read_cache_from(index_path);
+	discard_index(&the_index);
+	read_index_from(&the_index, index_path, get_git_dir());
 
 	if (write_index_as_tree(&orig_tree, &the_index, index_path, 0, NULL))
 		return error(_("Repository lacks necessary blobs to fall back on 3-way merge."));

@@ -1581,8 +1581,8 @@ static int fall_back_threeway(const stru
 
 	say(state, stdout, _("Falling back to patching base and 3-way merge..."));
 
-	discard_cache();
-	read_cache();
+	discard_index(&the_index);
+	read_index(&the_index);
 
 	/*
 	 * This is not so wrong. Depending on which base we picked, orig_tree

@@ -1886,7 +1886,7 @@ static void am_resolve(struct am_state *
 		die_user_resolve(state);
 	}
 
-	if (unmerged_cache()) {
+	if (unmerged_index(&the_index)) {
 		printf_ln(_("You still have unmerged paths in your index.\n"
 			"You should 'git add' each file with resolved conflicts to mark them as such.\n"
 			"You might run `git rm` on a file to accept \"deleted by them\" for it."));

@@ -1925,7 +1925,7 @@ static int fast_forward_to(struct tree *
 
 	hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
 
-	refresh_cache(REFRESH_QUIET);
+	refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL);
 
 	memset(&opts, 0, sizeof(opts));
 	opts.head_idx = 1;

@@ -2000,7 +2000,7 @@ static int clean_index(const struct obje
 	if (!remote_tree)
 		return error(_("Could not parse object '%s'."), oid_to_hex(remote));
 
-	read_cache_unmerged();
+	read_index_unmerged(&the_index);
 
 	if (fast_forward_to(head_tree, head_tree, 1))
 		return -1;

@@ -116,7 +116,7 @@ int cmd_check_attr(int argc, const char
 	argc = parse_options(argc, argv, prefix, check_attr_options,
 			     check_attr_usage, PARSE_OPT_KEEP_DASHDASH);
 
-	if (read_cache() < 0) {
+	if (read_index(&the_index) < 0) {
 		die("invalid cache");
 	}
 

@@ -174,7 +174,7 @@ int cmd_check_ignore(int argc, const cha
 		die(_("--non-matching is only valid with --verbose"));
 
 	/* read_cache() is only necessary so we can watch out for submodules. */
-	if (!no_index && read_cache() < 0)
+	if (!no_index && read_index(&the_index) < 0)
 		die(_("index file corrupt"));
 
 	memset(&dir, 0, sizeof(dir));

@@ -48,7 +48,7 @@ static void write_tempfile_record(const
 static int checkout_file(const char *name, const char *prefix)
 {
 	int namelen = strlen(name);
-	int pos = cache_name_pos(name, namelen);
+	int pos = index_name_pos(&the_index, name, namelen);
 	int has_same_name = 0;
 	int did_checkout = 0;
 	int errs = 0;

@@ -56,8 +56,8 @@ static int checkout_file(const char *nam
 	if (pos < 0)
 		pos = -pos - 1;
 
-	while (pos < active_nr) {
-		struct cache_entry *ce = active_cache[pos];
+	while (pos < the_index.cache_nr) {
+		struct cache_entry *ce = the_index.cache[pos];
 		if (ce_namelen(ce) != namelen ||
 		    memcmp(ce->name, name, namelen))
 			break;

@@ -97,8 +97,8 @@ static void checkout_all(const char *pre
 	int i, errs = 0;
 	struct cache_entry *last_ce = NULL;
 
-	for (i = 0; i < active_nr ; i++) {
-		struct cache_entry *ce = active_cache[i];
+	for (i = 0; i < the_index.cache_nr ; i++) {
+		struct cache_entry *ce = the_index.cache[i];
 		if (ce_stage(ce) != checkout_stage
 		    && (CHECKOUT_ALL != checkout_stage || !ce_stage(ce)))
 			continue;

@@ -185,7 +185,7 @@ int cmd_checkout_index(int argc, const c
 	git_config(git_default_config, NULL);
 	prefix_length = prefix ? strlen(prefix) : 0;
 
-	if (read_cache() < 0) {
+	if (read_index(&the_index) < 0) {
 		die("invalid cache");
 	}
 

172 lines not on this page · raw message

@@ -955,7 +955,7 @@ int cmd_clean(int argc, const char **arg
 	if (remove_directories)
 		dir.flags |= DIR_SHOW_IGNORED_TOO | DIR_KEEP_UNTRACKED_CONTENTS;
 
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die(_("index file corrupt"));
 
 	if (!ignored)

@@ -978,7 +978,7 @@ int cmd_clean(int argc, const char **arg
 		struct stat st;
 		const char *rel;
 
-		if (!cache_name_is_other(ent->name, ent->len))
+		if (!index_name_is_other(&the_index, ent->name, ent->len))
 			continue;
 
 		if (pathspec.nr)

132 lines not on this page · raw message

@@ -66,7 +66,7 @@ int cmd_diff_files(int argc, const char
 	    (rev.diffopt.output_format & DIFF_FORMAT_PATCH))
 		rev.combine_merges = rev.dense_combined_merges = 1;
 
-	if (read_cache_preload(&rev.diffopt.pathspec) < 0) {
+	if (read_index_preload(&the_index, &rev.diffopt.pathspec) < 0) {
 		perror("read_cache_preload");
 		return -1;
 	}

@@ -48,11 +48,11 @@ int cmd_diff_index(int argc, const char
 		usage(diff_cache_usage);
 	if (!cached) {
 		setup_work_tree();
-		if (read_cache_preload(&rev.diffopt.pathspec) < 0) {
+		if (read_index_preload(&the_index, &rev.diffopt.pathspec) < 0) {
 			perror("read_cache_preload");
 			return -1;
 		}
-	} else if (read_cache() < 0) {
+	} else if (read_index(&the_index) < 0) {
 		perror("read_cache");
 		return -1;
 	}

@@ -111,7 +111,7 @@ int cmd_diff_tree(int argc, const char *
 
 	git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
 	init_revisions(opt, the_repository, prefix);
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die(_("index file corrupt"));
 	opt->abbrev = 0;
 	opt->diff = 1;

@@ -146,11 +146,11 @@ static int builtin_diff_index(struct rev
 		usage(builtin_diff_usage);
 	if (!cached) {
 		setup_work_tree();
-		if (read_cache_preload(&revs->diffopt.pathspec) < 0) {
+		if (read_index_preload(&the_index, &revs->diffopt.pathspec) < 0) {
 			perror("read_cache_preload");
 			return -1;
 		}
-	} else if (read_cache() < 0) {
+	} else if (read_index(&the_index) < 0) {
 		perror("read_cache");
 		return -1;
 	}

@@ -211,9 +211,10 @@ static void refresh_index_quietly(void)
 	fd = hold_locked_index(&lock_file, 0);
 	if (fd < 0)
 		return;
-	discard_cache();
-	read_cache();
-	refresh_cache(REFRESH_QUIET|REFRESH_UNMERGED);
+	discard_index(&the_index);
+	read_index(&the_index);
+	refresh_index(&the_index, REFRESH_QUIET | REFRESH_UNMERGED, NULL,
+		      NULL, NULL);
 	repo_update_index_if_able(the_repository, &lock_file);
 }
 

@@ -248,7 +249,7 @@ static int builtin_diff_files(struct rev
 		revs->combine_merges = revs->dense_combined_merges = 1;
 
 	setup_work_tree();
-	if (read_cache_preload(&revs->diffopt.pathspec) < 0) {
+	if (read_index_preload(&the_index, &revs->diffopt.pathspec) < 0) {
 		perror("read_cache_preload");
 		return -1;
 	}

@@ -798,16 +798,16 @@ int cmd_fsck(int argc, const char **argv
 	if (keep_cache_objects) {
 		verify_index_checksum = 1;
 		verify_ce_order = 1;
-		read_cache();
-		for (i = 0; i < active_nr; i++) {
+		read_index(&the_index);
+		for (i = 0; i < the_index.cache_nr; i++) {
 			unsigned int mode;
 			struct blob *blob;
 			struct object *obj;
 
-			mode = active_cache[i]->ce_mode;
+			mode = the_index.cache[i]->ce_mode;
 			if (S_ISGITLINK(mode))
 				continue;
-			blob = lookup_blob(&active_cache[i]->oid);
+			blob = lookup_blob(&the_index.cache[i]->oid);
 			if (!blob)
 				continue;
 			obj = &blob->object;

@@ -815,11 +815,11 @@ int cmd_fsck(int argc, const char **argv
 			if (name_objects)
 				add_decoration(fsck_walk_options.object_names,
 					obj,
-					xstrfmt(":%s", active_cache[i]->name));
+					xstrfmt(":%s", the_index.cache[i]->name));
 			mark_object_reachable(obj);
 		}
-		if (active_cache_tree)
-			fsck_cache_tree(active_cache_tree);
+		if (the_index.cache_tree)
+			fsck_cache_tree(the_index.cache_tree);
 	}
 
 	check_connectivity();

@@ -338,7 +338,7 @@ static void restore_state(const struct o
 	run_command_v_opt(args, RUN_GIT_CMD);
 
 	strbuf_release(&sb);
-	refresh_cache(REFRESH_QUIET);
+	refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL);
 }
 
 /* This is called when no merge was necessary. */

@@ -630,7 +630,7 @@ static int read_tree_trivial(struct obje
 	if (!trees[nr_trees++])
 		return -1;
 	opts.fn = threeway_merge;
-	cache_tree_free(&active_cache_tree);
+	cache_tree_free(&the_index.cache_tree);
 	for (i = 0; i < nr_trees; i++) {
 		parse_tree(trees[i]);
 		init_tree_desc(t+i, trees[i]->buffer, trees[i]->size);

@@ -654,7 +654,7 @@ static int try_merge_strategy(const char
 	const char *head_arg = "HEAD";
 
 	hold_locked_index(&lock, LOCK_DIE_ON_ERROR);
-	refresh_cache(REFRESH_QUIET);
+	refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL);
 	if (write_locked_index(&the_index, &lock,
 			       COMMIT_LOCK | SKIP_IF_UNCHANGED))
 		return error(_("Unable to write index."));

@@ -717,8 +717,8 @@ static int count_unmerged_entries(void)
 {
 	int i, ret = 0;
 
-	for (i = 0; i < active_nr; i++)
-		if (ce_stage(active_cache[i]))
+	for (i = 0; i < the_index.cache_nr; i++)
+		if (ce_stage(the_index.cache[i]))
 			ret++;
 
 	return ret;

@@ -812,7 +812,7 @@ static int merge_trivial(struct commit *
 	struct lock_file lock = LOCK_INIT;
 
 	hold_locked_index(&lock, LOCK_DIE_ON_ERROR);
-	refresh_cache(REFRESH_QUIET);
+	refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL);
 	if (write_locked_index(&the_index, &lock,
 			       COMMIT_LOCK | SKIP_IF_UNCHANGED))
 		return error(_("Unable to write index."));

@@ -1237,7 +1237,7 @@ int cmd_merge(int argc, const char **arg
 		goto done;
 	}
 
-	if (read_cache_unmerged())
+	if (read_index_unmerged(&the_index))
 		die_resolve_conflict("merge");
 
 	if (file_exists(git_path_merge_head())) {

@@ -1258,7 +1258,7 @@ int cmd_merge(int argc, const char **arg
 		else
 			die(_("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists)."));
 	}
-	resolve_undo_clear();
+	resolve_undo_clear_index(&the_index);
 
 	if (verbosity < 0)
 		show_diffstat = 0;

@@ -1458,7 +1458,7 @@ int cmd_merge(int argc, const char **arg
 		 * We are not doing octopus, not fast-forward, and have
 		 * only one common.
 		 */
-		refresh_cache(REFRESH_QUIET);
+		refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL);
 		if (allow_trivial && fast_forward != FF_ONLY) {
 			/* See if it is really trivial. */
 			git_committer_info(IDENT_STRICT);

@@ -13,11 +13,11 @@ static int merge_entry(int pos, const ch
 	char hexbuf[4][GIT_MAX_HEXSZ + 1];
 	char ownbuf[4][60];
 
-	if (pos >= active_nr)
+	if (pos >= the_index.cache_nr)
 		die("git merge-index: %s not in the cache", path);
 	found = 0;
 	do {
-		const struct cache_entry *ce = active_cache[pos];
+		const struct cache_entry *ce = the_index.cache[pos];
 		int stage = ce_stage(ce);
 
 		if (strcmp(ce->name, path))

@@ -27,7 +27,7 @@ static int merge_entry(int pos, const ch
 		xsnprintf(ownbuf[stage], sizeof(ownbuf[stage]), "%o", ce->ce_mode);
 		arguments[stage] = hexbuf[stage];
 		arguments[stage + 4] = ownbuf[stage];
-	} while (++pos < active_nr);
+	} while (++pos < the_index.cache_nr);
 	if (!found)
 		die("git merge-index: %s not in the cache", path);
 

@@ -45,7 +45,7 @@ static int merge_entry(int pos, const ch
 
 static void merge_one_path(const char *path)
 {
-	int pos = cache_name_pos(path, strlen(path));
+	int pos = index_name_pos(&the_index, path, strlen(path));
 
 	/*
 	 * If it already exists in the cache as stage0, it's

@@ -58,8 +58,8 @@ static void merge_one_path(const char *p
 static void merge_all(void)
 {
 	int i;
-	for (i = 0; i < active_nr; i++) {
-		const struct cache_entry *ce = active_cache[i];
+	for (i = 0; i < the_index.cache_nr; i++) {
+		const struct cache_entry *ce = the_index.cache[i];
 		if (!ce_stage(ce))
 			continue;
 		i += merge_entry(i, ce->name)-1;

@@ -78,7 +78,7 @@ int cmd_merge_index(int argc, const char
 	if (argc < 3)
 		usage("git merge-index [-o] [-q] <merge-program> (-a | [--] [<filename>...])");
 
-	read_cache();
+	read_index(&the_index);
 
 	i = 1;
 	if (!strcmp(argv[i], "-o")) {

@@ -25,7 +25,7 @@ int cmd_merge_ours(int argc, const char
 	 * commit.  The index must match HEAD, or this merge cannot go
 	 * through.
 	 */
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die_errno("read_cache failed");
 	if (index_differs_from("HEAD", NULL, 0))
 		exit(2);

@@ -79,7 +79,7 @@ static void prepare_move_submodule(const
 				   const char **submodule_gitfile)
 {
 	struct strbuf submodule_dotgit = STRBUF_INIT;
-	if (!S_ISGITLINK(active_cache[first]->ce_mode))
+	if (!S_ISGITLINK(the_index.cache[first]->ce_mode))
 		die(_("Directory %s is in index and no submodule?"), src);
 	if (!is_staging_gitmodules_ok(&the_index))
 		die(_("Please stage your changes to .gitmodules or stash them to proceed"));

@@ -98,13 +98,13 @@ static int index_range_of_same_dir(const
 	const char *src_w_slash = add_slash(src);
 	int first, last, len_w_slash = length + 1;
 
-	first = cache_name_pos(src_w_slash, len_w_slash);
+	first = index_name_pos(&the_index, src_w_slash, len_w_slash);
 	if (first >= 0)
 		die(_("%.*s is in index"), len_w_slash, src_w_slash);
 
 	first = -1 - first;
-	for (last = first; last < active_nr; last++) {
-		const char *path = active_cache[last]->name;
+	for (last = first; last < the_index.cache_nr; last++) {
+		const char *path = the_index.cache[last]->name;
 		if (strncmp(path, src_w_slash, len_w_slash))
 			break;
 	}

@@ -141,7 +141,7 @@ int cmd_mv(int argc, const char **argv,
 		usage_with_options(builtin_mv_usage, builtin_mv_options);
 
 	hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die(_("index file corrupt"));
 
 	source = internal_prefix_pathspec(prefix, argv, argc, 0);

@@ -189,7 +189,7 @@ int cmd_mv(int argc, const char **argv,
 				&& lstat(dst, &st) == 0)
 			bad = _("cannot move directory over file");
 		else if (src_is_dir) {
-			int first = cache_name_pos(src, length), last;
+			int first = index_name_pos(&the_index, src, length), last;
 
 			if (first >= 0)
 				prepare_move_submodule(src, first,

@@ -211,7 +211,7 @@ int cmd_mv(int argc, const char **argv,
 				dst_len = strlen(dst);
 
 				for (j = 0; j < last - first; j++) {
-					const char *path = active_cache[first + j]->name;
+					const char *path = the_index.cache[first + j]->name;
 					source[argc + j] = path;
 					destination[argc + j] =
 						prefix_path(dst, dst_len, path + length + 1);

@@ -220,7 +220,7 @@ int cmd_mv(int argc, const char **argv,
 				}
 				argc += last - first;
 			}
-		} else if (cache_name_pos(src, length) < 0)
+		} else if (index_name_pos(&the_index, src, length) < 0)
 			bad = _("not under version control");
 		else if (lstat(dst, &st) == 0 &&
 			 (!ignore_case || strcasecmp(src, dst))) {

@@ -288,9 +288,9 @@ int cmd_mv(int argc, const char **argv,
 		if (mode == WORKING_DIRECTORY)
 			continue;
 
-		pos = cache_name_pos(src, strlen(src));
+		pos = index_name_pos(&the_index, src, strlen(src));
 		assert(pos >= 0);
-		rename_cache_entry_at(pos, dst);
+		rename_index_entry_at(&the_index, pos, dst);
 	}
 
 	if (gitmodules_modified)

@@ -864,7 +864,7 @@ int cmd_pull(int argc, const char **argv
 	if (opt_rebase < 0)
 		opt_rebase = config_get_rebase();
 
-	if (read_cache_unmerged())
+	if (read_index_unmerged(&the_index))
 		die_resolve_conflict("pull");
 
 	if (file_exists(git_path_merge_head()))

@@ -881,7 +881,7 @@ int cmd_pull(int argc, const char **argv
 		if (opt_autostash != -1)
 			autostash = opt_autostash;
 
-		if (is_null_oid(&orig_head) && !is_cache_unborn())
+		if (is_null_oid(&orig_head) && !is_index_unborn(&the_index))
 			die(_("Updating an unborn branch with changes added to the index."));
 
 		if (!autostash)

@@ -180,11 +180,11 @@ int cmd_read_tree(int argc, const char *
 	 */
 
 	if (opts.reset || opts.merge || opts.prefix) {
-		if (read_cache_unmerged() && (opts.prefix || opts.merge))
+		if (read_index_unmerged(&the_index) && (opts.prefix || opts.merge))
 			die("You need to resolve your current index first");
 		stage = opts.merge = 1;
 	}
-	resolve_undo_clear();
+	resolve_undo_clear_index(&the_index);
 
 	for (i = 0; i < argc; i++) {
 		const char *arg = argv[i];

@@ -220,7 +220,7 @@ int cmd_read_tree(int argc, const char *
 			break;
 		case 2:
 			opts.fn = twoway_merge;
-			opts.initial_checkout = is_cache_unborn();
+			opts.initial_checkout = is_index_unborn(&the_index);
 			break;
 		case 3:
 		default:

@@ -237,7 +237,7 @@ int cmd_read_tree(int argc, const char *
 	if (opts.debug_unpack)
 		opts.fn = debug_merge;
 
-	cache_tree_free(&active_cache_tree);
+	cache_tree_free(&the_index.cache_tree);
 	for (i = 0; i < nr_trees; i++) {
 		struct tree *tree = trees[i];
 		parse_tree(tree);

@@ -71,7 +71,7 @@ static int reset_index(const struct obje
 		opts.reset = 1;
 	}
 
-	read_cache_unmerged();
+	read_index_unmerged(&the_index);
 
 	if (reset_type == KEEP) {
 		struct object_id head_oid;

@@ -131,7 +131,7 @@ static void update_index_from_diff(struc
 		struct cache_entry *ce;
 
 		if (is_missing && !intent_to_add) {
-			remove_file_from_cache(one->path);
+			remove_file_from_index(&the_index, one->path);
 			continue;
 		}
 

@@ -144,7 +144,8 @@ static void update_index_from_diff(struc
 			ce->ce_flags |= CE_INTENT_TO_ADD;
 			set_object_name_for_intent_to_add_entry(ce);
 		}
-		add_cache_entry(ce, ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE);
+		add_index_entry(&the_index, ce,
+				ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE);
 	}
 }
 

@@ -187,7 +188,7 @@ static void set_reflog_message(struct st
 
 static void die_if_unmerged_cache(int reset_type)
 {
-	if (is_merge() || unmerged_cache())
+	if (is_merge() || unmerged_index(&the_index))
 		die(_("Cannot do a %s reset in the middle of a merge."),
 		    _(reset_type_names[reset_type]));
 

@@ -239,7 +240,7 @@ static void parse_args(struct pathspec *
 	}
 	*rev_ret = rev;
 
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die(_("index file corrupt"));
 
 	parse_pathspec(pathspec, 0,

@@ -889,7 +889,7 @@ int cmd_rev_parse(int argc, const char *
 				continue;
 			}
 			if (!strcmp(arg, "--shared-index-path")) {
-				if (read_cache() < 0)
+				if (read_index(&the_index) < 0)
 					die(_("Could not read the index"));
 				if (the_index.split_index) {
 					const struct object_id *oid = &the_index.split_index->base_oid;

@@ -32,8 +32,8 @@ static int get_ours_cache_pos(const char
 {
 	int i = -pos - 1;
 
-	while ((i < active_nr) && !strcmp(active_cache[i]->name, path)) {
-		if (ce_stage(active_cache[i]) == 2)
+	while ((i < the_index.cache_nr) && !strcmp(the_index.cache[i]->name, path)) {
+		if (ce_stage(the_index.cache[i]) == 2)
 			return i;
 		i++;
 	}

@@ -69,13 +69,13 @@ static void submodules_absorb_gitdir_if_
 		int pos;
 		const struct cache_entry *ce;
 
-		pos = cache_name_pos(name, strlen(name));
+		pos = index_name_pos(&the_index, name, strlen(name));
 		if (pos < 0) {
 			pos = get_ours_cache_pos(name, pos);
 			if (pos < 0)
 				continue;
 		}
-		ce = active_cache[pos];
+		ce = the_index.cache[pos];
 
 		if (!S_ISGITLINK(ce->ce_mode) ||
 		    !file_exists(ce->name) ||

@@ -114,7 +114,7 @@ static int check_local_mod(struct object
 		int local_changes = 0;
 		int staged_changes = 0;
 
-		pos = cache_name_pos(name, strlen(name));
+		pos = index_name_pos(&the_index, name, strlen(name));
 		if (pos < 0) {
 			/*
 			 * Skip unmerged entries except for populated submodules

@@ -124,11 +124,11 @@ static int check_local_mod(struct object
 			if (pos < 0)
 				continue;
 
-			if (!S_ISGITLINK(active_cache[pos]->ce_mode) ||
+			if (!S_ISGITLINK(the_index.cache[pos]->ce_mode) ||
 			    is_empty_dir(name))
 				continue;
 		}
-		ce = active_cache[pos];
+		ce = the_index.cache[pos];
 
 		if (lstat(ce->name, &st) < 0) {
 			if (!is_missing_file_error(errno))

@@ -165,7 +165,7 @@ static int check_local_mod(struct object
 		 * Is the index different from the file in the work tree?
 		 * If it's a submodule, is its work tree modified?
 		 */
-		if (ce_match_stat(ce, &st, 0) ||
+		if (ie_match_stat(&the_index, ce, &st, 0) ||
 		    (S_ISGITLINK(ce->ce_mode) &&
 		     bad_to_remove_submodule(ce->name,
 				SUBMODULE_REMOVAL_DIE_ON_ERROR |

@@ -267,7 +267,7 @@ int cmd_rm(int argc, const char **argv,
 
 	hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
 
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die(_("index file corrupt"));
 
 	parse_pathspec(&pathspec, 0,

@@ -277,8 +277,8 @@ int cmd_rm(int argc, const char **argv,
 
 	seen = xcalloc(pathspec.nr, 1);
 
-	for (i = 0; i < active_nr; i++) {
-		const struct cache_entry *ce = active_cache[i];
+	for (i = 0; i < the_index.cache_nr; i++) {
+		const struct cache_entry *ce = the_index.cache[i];
 		if (!ce_path_match(&the_index, ce, &pathspec, seen))
 			continue;
 		ALLOC_GROW(list.entry, list.nr + 1, list.alloc);

@@ -342,7 +342,7 @@ int cmd_rm(int argc, const char **argv,
 		if (!quiet)
 			printf("rm '%s'\n", path);
 
-		if (remove_file_from_cache(path))
+		if (remove_file_from_index(&the_index, path))
 			die(_("git rm: unable to remove %s"), path);
 	}
 

@@ -325,11 +325,11 @@ static int module_list_compute(int argc,
 	if (pathspec->nr)
 		ps_matched = xcalloc(pathspec->nr, 1);
 
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die(_("index file corrupt"));
 
-	for (i = 0; i < active_nr; i++) {
-		const struct cache_entry *ce = active_cache[i];
+	for (i = 0; i < the_index.cache_nr; i++) {
+		const struct cache_entry *ce = the_index.cache[i];
 
 		if (!match_pathspec(&the_index, pathspec, ce->name, ce_namelen(ce),
 				    0, ps_matched, 1) ||

@@ -338,8 +338,8 @@ static int module_list_compute(int argc,
 
 		ALLOC_GROW(list->entries, list->nr + 1, list->alloc);
 		list->entries[list->nr++] = ce;
-		while (i + 1 < active_nr &&
-		       !strcmp(ce->name, active_cache[i + 1]->name))
+		while (i + 1 < the_index.cache_nr &&
+		       !strcmp(ce->name, the_index.cache[i + 1]->name))
 			/*
 			 * Skip entries with the same name in different stages
 			 * to make sure an entry is returned only once.

250 lines not on this page · raw message

@@ -48,7 +48,7 @@ int cmd_main(int ac, const char **av)
 	ignore_untracked_cache_config = 1;
 
 	setup_git_directory();
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die("unable to read index file");
 	uc = the_index.untracked;
 	if (!uc) {

@@ -60,10 +60,10 @@ int cmd__dump_cache_tree(int ac, const c
 	struct index_state istate;
 	struct cache_tree *another = cache_tree();
 	setup_git_directory();
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die("unable to read index file");
 	istate = the_index;
 	istate.cache_tree = another;
 	cache_tree_update(&istate, WRITE_TREE_DRY_RUN);
-	return dump_cache_tree(active_cache_tree, another, "");
+	return dump_cache_tree(the_index.cache_tree, another, "");
 }

@@ -32,7 +32,7 @@ static void dump_run(void)
 	struct dir_entry *dir;
 	struct cache_entry *ce;
 
-	read_cache();
+	read_index(&the_index);
 	if (single) {
 		test_lazy_init_name_hash(&the_index, 0);
 	} else {

@@ -53,7 +53,7 @@ static void dump_run(void)
 		ce = hashmap_iter_next(&iter_cache);
 	}
 
-	discard_cache();
+	discard_index(&the_index);
 }
 
 /*

@@ -70,7 +70,7 @@ static uint64_t time_runs(int try_thread
 
 	for (i = 0; i < count; i++) {
 		t0 = getnanotime();
-		read_cache();
+		read_index(&the_index);
 		t1 = getnanotime();
 		nr_threads_used = test_lazy_init_name_hash(&the_index, try_threaded);
 		t2 = getnanotime();

@@ -93,7 +93,7 @@ static uint64_t time_runs(int try_thread
 				   the_index.cache_nr);
 		fflush(stdout);
 
-		discard_cache();
+		discard_index(&the_index);
 	}
 
 	avg = sum / count;

@@ -117,9 +117,9 @@ static void analyze_run(void)
 	int i;
 	int nr;
 
-	read_cache();
+	read_index(&the_index);
 	cache_nr_limit = the_index.cache_nr;
-	discard_cache();
+	discard_index(&the_index);
 
 	nr = analyze;
 	while (1) {

@@ -132,23 +132,23 @@ static void analyze_run(void)
 			nr = cache_nr_limit;
 
 		for (i = 0; i < count; i++) {
-			read_cache();
+			read_index(&the_index);
 			the_index.cache_nr = nr; /* cheap truncate of index */
 			t1s = getnanotime();
 			test_lazy_init_name_hash(&the_index, 0);
 			t2s = getnanotime();
 			sum_single += (t2s - t1s);
 			the_index.cache_nr = cache_nr_limit;
-			discard_cache();
+			discard_index(&the_index);
 
-			read_cache();
+			read_index(&the_index);
 			the_index.cache_nr = nr; /* cheap truncate of index */
 			t1m = getnanotime();
 			nr_threads_used = test_lazy_init_name_hash(&the_index, 1);
 			t2m = getnanotime();
 			sum_multi += (t2m - t1m);
 			the_index.cache_nr = cache_nr_limit;
-			discard_cache();
+			discard_index(&the_index);
 
 			if (!nr_threads_used)
 				printf("    [size %8d] [single %f]   non-threaded code path used\n",

@@ -8,8 +8,8 @@ int cmd__read_cache(int argc, const char
 		cnt = strtol(argv[1], NULL, 0);
 	setup_git_directory();
 	for (i = 0; i < cnt; i++) {
-		read_cache();
-		discard_cache();
+		read_index(&the_index);
+		discard_index(&the_index);
 	}
 	return 0;
 }

@@ -10,9 +10,9 @@ int cmd__scrap_cache_tree(int ac, const
 
 	setup_git_directory();
 	hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR);
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		die("unable to read index file");
-	active_cache_tree = NULL;
+	the_index.cache_tree = NULL;
 	if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
 		die("unable to write index file");
 	return 0;

@@ -9,7 +9,7 @@ int cmd__write_cache(int argc, const cha
 	if (argc == 2)
 		cnt = strtol(argv[1], NULL, 0);
 	setup_git_directory();
-	read_cache();
+	read_index(&the_index);
 	for (i = 0; i < cnt; i++) {
 		hold_locked_index(&index_lock, LOCK_DIE_ON_ERROR);
 		if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK))

index d79e61591b..57a7d3cafd 100644
@@ -3378,7 +3378,8 @@ static int verify_index_match(const struct cache_entry *ce, struct stat *st)
 			return -1;
 		return 0;
 	}
-	return ce_match_stat(ce, st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE);
+	return ie_match_stat(&the_index, ce, st,
+			     CE_MATCH_IGNORE_VALID | CE_MATCH_IGNORE_SKIP_WORKTREE);
 }
 
 #define SUBMODULE_PATCH_WITHOUT_INDEX 1

@@ -3511,10 +3512,10 @@ static int load_current(struct apply_state *state,
 	if (!patch->is_new)
 		BUG("patch to %s is not a creation", patch->old_name);
 
-	pos = cache_name_pos(name, strlen(name));
+	pos = index_name_pos(&the_index, name, strlen(name));
 	if (pos < 0)
 		return error(_("%s: does not exist in index"), name);
-	ce = active_cache[pos];
+	ce = the_index.cache[pos];
 	if (lstat(name, &st)) {
 		if (errno != ENOENT)
 			return error_errno("%s", name);

@@ -3680,13 +3681,14 @@ static int check_preimage(struct apply_state *state,
 	}
 
 	if (state->check_index && !previous) {
-		int pos = cache_name_pos(old_name, strlen(old_name));
+		int pos = index_name_pos(&the_index, old_name,
+					 strlen(old_name));
 		if (pos < 0) {
 			if (patch->is_new < 0)
 				goto is_new;
 			return error(_("%s: does not exist in index"), old_name);
 		}
-		*ce = active_cache[pos];
+		*ce = the_index.cache[pos];
 		if (stat_ret < 0) {
 			if (checkout_target(&the_index, *ce, st))
 				return -1;

@@ -3735,7 +3737,7 @@ static int check_to_create(struct apply_state *state,
 	struct stat nst;
 
 	if (state->check_index &&
-	    cache_name_pos(new_name, strlen(new_name)) >= 0 &&
+	    index_name_pos(&the_index, new_name, strlen(new_name)) >= 0 &&
 	    !ok_if_exists)
 		return EXISTS_IN_INDEX;
 	if (state->cached)

@@ -3824,7 +3826,8 @@ static int path_is_beyond_symlink_1(struct apply_state *state, struct strbuf *na
 		if (state->check_index) {
 			struct cache_entry *ce;
 
-			ce = cache_file_exists(name->buf, name->len, ignore_case);
+			ce = index_file_exists(&the_index, name->buf,
+					       name->len, ignore_case);
 			if (ce && S_ISLNK(ce->ce_mode))
 				return 1;
 		} else {

@@ -3999,9 +4002,10 @@ static int check_patch_list(struct apply_state *state, struct patch *patch)
 static int read_apply_cache(struct apply_state *state)
 {
 	if (state->index_file)
-		return read_cache_from(state->index_file);
+		return read_index_from(&the_index, state->index_file,
+				       get_git_dir());
 	else
-		return read_cache();
+		return read_index(&the_index);
 }
 
 /* This function tries to read the object name from the current index */

@@ -4012,10 +4016,10 @@ static int get_current_oid(struct apply_state *state, const char *path,
 
 	if (read_apply_cache(state) < 0)
 		return -1;
-	pos = cache_name_pos(path, strlen(path));
+	pos = index_name_pos(&the_index, path, strlen(path));
 	if (pos < 0)
 		return -1;
-	oidcpy(oid, &active_cache[pos]->oid);
+	oidcpy(oid, &the_index.cache[pos]->oid);
 	return 0;
 }
 

@@ -4243,7 +4247,7 @@ static void patch_stats(struct apply_state *state, struct patch *patch)
 static int remove_file(struct apply_state *state, struct patch *patch, int rmdir_empty)
 {
 	if (state->update_index) {
-		if (remove_file_from_cache(patch->old_name) < 0)
+		if (remove_file_from_index(&the_index, patch->old_name) < 0)
 			return error(_("unable to remove %s from index"), patch->old_name);
 	}
 	if (!state->cached) {

@@ -4297,7 +4301,7 @@ static int add_index_file(struct apply_state *state,
 				       "for newly created file %s"), path);
 		}
 	}
-	if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0) {
+	if (add_index_entry(&the_index, ce, ADD_CACHE_OK_TO_ADD) < 0) {
 		free(ce);
 		return error(_("unable to add cache entry for %s"), path);
 	}

@@ -4431,7 +4435,7 @@ static int add_conflicted_stages_file(struct apply_state *state,
 	ce_size = cache_entry_size(namelen);
 	mode = patch->new_mode ? patch->new_mode : (S_IFREG | 0644);
 
-	remove_file_from_cache(patch->new_name);
+	remove_file_from_index(&the_index, patch->new_name);
 	for (stage = 1; stage < 4; stage++) {
 		if (is_null_oid(&patch->threeway_stage[stage - 1]))
 			continue;

@@ -4441,7 +4445,7 @@ static int add_conflicted_stages_file(struct apply_state *state,
 		ce->ce_flags = create_ce_flags(stage);
 		ce->ce_namelen = namelen;
 		oidcpy(&ce->oid, &patch->threeway_stage[stage - 1]);
-		if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0) {
+		if (add_index_entry(&the_index, ce, ADD_CACHE_OK_TO_ADD) < 0) {
 			free(ce);
 			return error(_("unable to add cache entry for %s"),
 				     patch->new_name);

index 57a7d3cafd..0ec5b1ec57 100644
@@ -75,10 +75,12 @@ static int parse_ignorewhitespace_option(struct apply_state *state,
 }
 
 int init_apply_state(struct apply_state *state,
+		     struct repository *repo,
 		     const char *prefix)
 {
 	memset(state, 0, sizeof(*state));
 	state->prefix = prefix;
+	state->repo = repo;
 	state->apply = 1;
 	state->line_termination = '\n';
 	state->p_value = 1;

@@ -2126,10 +2128,12 @@ static int parse_chunk(struct apply_state *state, char *buffer, unsigned long si
 
 	if (!use_patch(state, patch))
 		patch->ws_rule = 0;
+	else if (patch->new_name)
+		patch->ws_rule = whitespace_rule(state->repo->index,
+						 patch->new_name);
 	else
-		patch->ws_rule = whitespace_rule(patch->new_name
-						 ? patch->new_name
-						 : patch->old_name);
+		patch->ws_rule = whitespace_rule(state->repo->index,
+						 patch->old_name);
 
 	patchsize = parse_single_patch(state,
 				       buffer + offset + hdrsize,

@@ -3371,14 +3375,16 @@ static struct patch *previous_patch(struct apply_state *state,
 	return previous;
 }
 
-static int verify_index_match(const struct cache_entry *ce, struct stat *st)
+static int verify_index_match(struct apply_state *state,
+			      const struct cache_entry *ce,
+			      struct stat *st)
 {
 	if (S_ISGITLINK(ce->ce_mode)) {
 		if (!S_ISDIR(st->st_mode))
 			return -1;
 		return 0;
 	}
-	return ie_match_stat(&the_index, ce, st,
+	return ie_match_stat(state->repo->index, ce, st,
 			     CE_MATCH_IGNORE_VALID | CE_MATCH_IGNORE_SKIP_WORKTREE);
 }
 

@@ -3460,7 +3466,8 @@ static int load_preimage(struct apply_state *state,
 	return 0;
 }
 
-static int three_way_merge(struct image *image,
+static int three_way_merge(struct apply_state *state,
+			   struct image *image,
 			   char *path,
 			   const struct object_id *base,
 			   const struct object_id *ours,

@@ -3476,7 +3483,9 @@ static int three_way_merge(struct image *image,
 	status = ll_merge(&result, path,
 			  &base_file, "base",
 			  &our_file, "ours",
-			  &their_file, "theirs", NULL);
+			  &their_file, "theirs",
+			  state->repo->index,
+			  NULL);
 	free(base_file.ptr);
 	free(our_file.ptr);
 	free(their_file.ptr);

@@ -3512,17 +3521,17 @@ static int load_current(struct apply_state *state,
 	if (!patch->is_new)
 		BUG("patch to %s is not a creation", patch->old_name);
 
-	pos = index_name_pos(&the_index, name, strlen(name));
+	pos = index_name_pos(state->repo->index, name, strlen(name));
 	if (pos < 0)
 		return error(_("%s: does not exist in index"), name);
-	ce = the_index.cache[pos];
+	ce = state->repo->index->cache[pos];
 	if (lstat(name, &st)) {
 		if (errno != ENOENT)
 			return error_errno("%s", name);
-		if (checkout_target(&the_index, ce, &st))
+		if (checkout_target(state->repo->index, ce, &st))
 			return -1;
 	}
-	if (verify_index_match(ce, &st))
+	if (verify_index_match(state, ce, &st))
 		return error(_("%s: does not match index"), name);
 
 	status = load_patch_target(state, &buf, ce, &st, patch, name, mode);

@@ -3588,7 +3597,7 @@ static int try_threeway(struct apply_state *state,
 	clear_image(&tmp_image);
 
 	/* in-core three-way merge between post and our using pre as base */
-	status = three_way_merge(image, patch->new_name,
+	status = three_way_merge(state, image, patch->new_name,
 				 &pre_oid, &our_oid, &post_oid);
 	if (status < 0) {
 		if (state->apply_verbosity > verbosity_silent)

@@ -3681,19 +3690,19 @@ static int check_preimage(struct apply_state *state,
 	}
 
 	if (state->check_index && !previous) {
-		int pos = index_name_pos(&the_index, old_name,
+		int pos = index_name_pos(state->repo->index, old_name,
 					 strlen(old_name));
 		if (pos < 0) {
 			if (patch->is_new < 0)
 				goto is_new;
 			return error(_("%s: does not exist in index"), old_name);
 		}
-		*ce = the_index.cache[pos];
+		*ce = state->repo->index->cache[pos];
 		if (stat_ret < 0) {
-			if (checkout_target(&the_index, *ce, st))
+			if (checkout_target(state->repo->index, *ce, st))
 				return -1;
 		}
-		if (!state->cached && verify_index_match(*ce, st))
+		if (!state->cached && verify_index_match(state, *ce, st))
 			return error(_("%s: does not match index"), old_name);
 		if (state->cached)
 			st_mode = (*ce)->ce_mode;

@@ -3737,7 +3746,7 @@ static int check_to_create(struct apply_state *state,
 	struct stat nst;
 
 	if (state->check_index &&
-	    index_name_pos(&the_index, new_name, strlen(new_name)) >= 0 &&
+	    index_name_pos(state->repo->index, new_name, strlen(new_name)) >= 0 &&
 	    !ok_if_exists)
 		return EXISTS_IN_INDEX;
 	if (state->cached)

@@ -3826,7 +3835,7 @@ static int path_is_beyond_symlink_1(struct apply_state *state, struct strbuf *na
 		if (state->check_index) {
 			struct cache_entry *ce;
 
-			ce = index_file_exists(&the_index, name->buf,
+			ce = index_file_exists(state->repo->index, name->buf,
 					       name->len, ignore_case);
 			if (ce && S_ISLNK(ce->ce_mode))
 				return 1;

@@ -4002,10 +4011,10 @@ static int check_patch_list(struct apply_state *state, struct patch *patch)
 static int read_apply_cache(struct apply_state *state)
 {
 	if (state->index_file)
-		return read_index_from(&the_index, state->index_file,
+		return read_index_from(state->repo->index, state->index_file,
 				       get_git_dir());
 	else
-		return read_index(&the_index);
+		return repo_read_index(state->repo);
 }
 
 /* This function tries to read the object name from the current index */

@@ -4016,10 +4025,10 @@ static int get_current_oid(struct apply_state *state, const char *path,
 
 	if (read_apply_cache(state) < 0)
 		return -1;
-	pos = index_name_pos(&the_index, path, strlen(path));
+	pos = index_name_pos(state->repo->index, path, strlen(path));
 	if (pos < 0)
 		return -1;
-	oidcpy(oid, &the_index.cache[pos]->oid);
+	oidcpy(oid, &state->repo->index->cache[pos]->oid);
 	return 0;
 }
 

@@ -4094,9 +4103,9 @@ static int build_fake_ancestor(struct apply_state *state, struct patch *list)
 			return error(_("sha1 information is lacking or useless "
 				       "(%s)."), name);
 
-		ce = make_cache_entry(patch->old_mode, oid.hash, name, 0, 0);
+		ce = make_index_entry(&result, patch->old_mode, oid.hash, name, 0, 0);
 		if (!ce)
-			return error(_("make_cache_entry failed for path '%s'"),
+			return error(_("make_index_entry failed for path '%s'"),
 				     name);
 		if (add_index_entry(&result, ce, ADD_CACHE_OK_TO_ADD)) {
 			free(ce);

@@ -4247,7 +4256,7 @@ static void patch_stats(struct apply_state *state, struct patch *patch)
 static int remove_file(struct apply_state *state, struct patch *patch, int rmdir_empty)
 {
 	if (state->update_index) {
-		if (remove_file_from_index(&the_index, patch->old_name) < 0)
+		if (remove_file_from_index(state->repo->index, patch->old_name) < 0)
 			return error(_("unable to remove %s from index"), patch->old_name);
 	}
 	if (!state->cached) {

@@ -4301,7 +4310,7 @@ static int add_index_file(struct apply_state *state,
 				       "for newly created file %s"), path);
 		}
 	}
-	if (add_index_entry(&the_index, ce, ADD_CACHE_OK_TO_ADD) < 0) {
+	if (add_index_entry(state->repo->index, ce, ADD_CACHE_OK_TO_ADD) < 0) {
 		free(ce);
 		return error(_("unable to add cache entry for %s"), path);
 	}

@@ -4315,7 +4324,9 @@ static int add_index_file(struct apply_state *state,
  *   0 if everything went well
  *   1 if a recoverable error happened
  */
-static int try_create_file(const char *path, unsigned int mode, const char *buf, unsigned long size)
+static int try_create_file(struct apply_state *state, const char *path,
+			   unsigned int mode, const char *buf,
+			   unsigned long size)
 {
 	int fd, res;
 	struct strbuf nbuf = STRBUF_INIT;

@@ -4337,7 +4348,7 @@ static int try_create_file(const char *path, unsigned int mode, const char *buf,
 	if (fd < 0)
 		return 1;
 
-	if (convert_to_working_tree(path, buf, size, &nbuf)) {
+	if (convert_to_working_tree(state->repo->index, path, buf, size, &nbuf)) {
 		size = nbuf.len;
 		buf  = nbuf.buf;
 	}

@@ -4373,7 +4384,7 @@ static int create_one_file(struct apply_state *state,
 	if (state->cached)
 		return 0;
 
-	res = try_create_file(path, mode, buf, size);
+	res = try_create_file(state, path, mode, buf, size);
 	if (res < 0)
 		return -1;
 	if (!res)

@@ -4382,7 +4393,7 @@ static int create_one_file(struct apply_state *state,
 	if (errno == ENOENT) {
 		if (safe_create_leading_directories(path))
 			return 0;
-		res = try_create_file(path, mode, buf, size);
+		res = try_create_file(state, path, mode, buf, size);
 		if (res < 0)
 			return -1;
 		if (!res)

@@ -4404,7 +4415,7 @@ static int create_one_file(struct apply_state *state,
 		for (;;) {
 			char newpath[PATH_MAX];
 			mksnpath(newpath, sizeof(newpath), "%s~%u", path, nr);
-			res = try_create_file(newpath, mode, buf, size);
+			res = try_create_file(state, newpath, mode, buf, size);
 			if (res < 0)
 				return -1;
 			if (!res) {

@@ -4435,7 +4446,7 @@ static int add_conflicted_stages_file(struct apply_state *state,
 	ce_size = cache_entry_size(namelen);
 	mode = patch->new_mode ? patch->new_mode : (S_IFREG | 0644);
 
-	remove_file_from_index(&the_index, patch->new_name);
+	remove_file_from_index(state->repo->index, patch->new_name);
 	for (stage = 1; stage < 4; stage++) {
 		if (is_null_oid(&patch->threeway_stage[stage - 1]))
 			continue;

@@ -4445,7 +4456,7 @@ static int add_conflicted_stages_file(struct apply_state *state,
 		ce->ce_flags = create_ce_flags(stage);
 		ce->ce_namelen = namelen;
 		oidcpy(&ce->oid, &patch->threeway_stage[stage - 1]);
-		if (add_index_entry(&the_index, ce, ADD_CACHE_OK_TO_ADD) < 0) {
+		if (add_index_entry(state->repo->index, ce, ADD_CACHE_OK_TO_ADD) < 0) {
 			free(ce);
 			return error(_("unable to add cache entry for %s"),
 				     patch->new_name);

@@ -4619,7 +4630,7 @@ static int write_out_results(struct apply_state *state, struct patch *list)
 		}
 		string_list_clear(&cpath, 0);
 
-		rerere(0);
+		rerere(state->repo, 0);
 	}
 
 	return errs;

@@ -4697,7 +4708,8 @@ static int apply_patch(struct apply_state *state,
 						  state->index_file,
 						  LOCK_DIE_ON_ERROR);
 		else
-			hold_locked_index(&state->lock_file, LOCK_DIE_ON_ERROR);
+			repo_hold_locked_index(state->repo, &state->lock_file,
+					       LOCK_DIE_ON_ERROR);
 	}
 
 	if (state->check_index && read_apply_cache(state) < 0) {

@@ -4893,7 +4905,7 @@ int apply_all_patches(struct apply_state *state,
 	}
 
 	if (state->update_index) {
-		res = write_locked_index(&the_index, &state->lock_file, COMMIT_LOCK);
+		res = write_locked_index(state->repo->index, &state->lock_file, COMMIT_LOCK);
 		if (res) {
 			error(_("Unable to write new index file"));
 			res = -128;

index 14d0e0b575..c357cf2f49 100644
@@ -85,11 +85,11 @@ static void verify_working_tree_path(struct commit *work_tree, const char *path)
 			return;
 	}
 
-	pos = cache_name_pos(path, strlen(path));
+	pos = index_name_pos(&the_index, path, strlen(path));
 	if (pos >= 0)
 		; /* path is in the index */
-	else if (-1 - pos < active_nr &&
-		 !strcmp(active_cache[-1 - pos]->name, path))
+	else if (-1 - pos < the_index.cache_nr &&
+		 !strcmp(the_index.cache[-1 - pos]->name, path))
 		; /* path is in the index, unmerged */
 	else
 		die("no such path '%s' in HEAD", path);

@@ -159,7 +159,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
 	unsigned mode;
 	struct strbuf msg = STRBUF_INIT;
 
-	read_cache();
+	read_index(&the_index);
 	time(&now);
 	commit = alloc_commit_node();
 	commit->object.parsed = 1;

@@ -240,14 +240,14 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
 	 * bits; we are not going to write this index out -- we just
 	 * want to run "diff-index --cached".
 	 */
-	discard_cache();
-	read_cache();
+	discard_index(&the_index);
+	read_index(&the_index);
 
 	len = strlen(path);
 	if (!mode) {
-		int pos = cache_name_pos(path, len);
+		int pos = index_name_pos(&the_index, path, len);
 		if (0 <= pos)
-			mode = active_cache[pos]->ce_mode;
+			mode = the_index.cache[pos]->ce_mode;
 		else
 			/* Let's not bother reading from HEAD tree */
 			mode = S_IFREG | 0644;

@@ -259,7 +259,8 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
 	ce->ce_flags = create_ce_flags(0);
 	ce->ce_namelen = len;
 	ce->ce_mode = create_ce_mode(mode);
-	add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
+	add_index_entry(&the_index, ce,
+			ADD_CACHE_OK_TO_ADD | ADD_CACHE_OK_TO_REPLACE);
 
 	cache_tree_invalidate_path(&the_index, path);
 

index 24b6542352..485d7ab8f8 100644
@@ -6,9 +6,9 @@ int main(int ac, char **av)
 	int dirty, clean, racy;
 
 	dirty = clean = racy = 0;
-	read_cache();
-	for (i = 0; i < active_nr; i++) {
-		struct cache_entry *ce = active_cache[i];
+	read_index(&the_index);
+	for (i = 0; i < the_index.cache_nr; i++) {
+		struct cache_entry *ce = the_index.cache[i];
 		struct stat st;
 
 		if (lstat(ce->name, &st)) {

@@ -16,9 +16,9 @@ int main(int ac, char **av)
 			continue;
 		}
 
-		if (ce_match_stat(ce, &st, 0))
+		if (ie_match_stat(&the_index, ce, &st, 0))
 			dirty++;
-		else if (ce_match_stat(ce, &st, CE_MATCH_RACY_IS_DIRTY))
+		else if (ie_match_stat(&the_index, ce, &st, CE_MATCH_RACY_IS_DIRTY))
 			racy++;
 		else
 			clean++;

index 104f954a25..56387e1f63 100644
@@ -70,7 +70,7 @@ static int match_stat_with_submodule(struct diff_options *diffopt,
 				     struct stat *st, unsigned ce_option,
 				     unsigned *dirty_submodule)
 {
-	int changed = ce_match_stat(ce, st, ce_option);
+	int changed = ie_match_stat(&the_index, ce, st, ce_option);
 	if (S_ISGITLINK(ce->ce_mode)) {
 		struct diff_flags orig_flags = diffopt->flags;
 		if (!diffopt->flags.override_submodule_config)

@@ -98,10 +98,10 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
 
 	if (diff_unmerged_stage < 0)
 		diff_unmerged_stage = 2;
-	entries = active_nr;
+	entries = the_index.cache_nr;
 	for (i = 0; i < entries; i++) {
 		unsigned int oldmode, newmode;
-		struct cache_entry *ce = active_cache[i];
+		struct cache_entry *ce = the_index.cache[i];
 		int changed;
 		unsigned dirty_submodule = 0;
 		const struct object_id *old_oid, *new_oid;

@@ -145,7 +145,7 @@ int run_diff_files(struct rev_info *revs, unsigned int option)
 			dpath->mode = wt_mode;
 
 			while (i < entries) {
-				struct cache_entry *nce = active_cache[i];
+				struct cache_entry *nce = the_index.cache[i];
 				int stage;
 
 				if (strcmp(ce->name, nce->name))

index 136d44b455..975e095ed2 100644
@@ -3460,7 +3460,7 @@ static int reuse_worktree_file(const char *name, const struct object_id *oid, in
 	 * by diff-cache --cached, which does read the cache before
 	 * calling us.
 	 */
-	if (!active_cache)
+	if (!the_index.cache)
 		return 0;
 
 	/* We want to avoid the working directory if our caller

@@ -3483,10 +3483,10 @@ static int reuse_worktree_file(const char *name, const struct object_id *oid, in
 		return 0;
 
 	len = strlen(name);
-	pos = cache_name_pos(name, len);
+	pos = index_name_pos(&the_index, name, len);
 	if (pos < 0)
 		return 0;
-	ce = active_cache[pos];
+	ce = the_index.cache[pos];
 
 	/*
 	 * This is not the sha1 we are looking for, or

@@ -3506,7 +3506,7 @@ static int reuse_worktree_file(const char *name, const struct object_id *oid, in
 	 * If ce matches the file in the work tree, we can reuse it.
 	 */
 	if (ce_uptodate(ce) ||
-	    (!lstat(name, &st) && !ce_match_stat(ce, &st, 0)))
+	    (!lstat(name, &st) && !ie_match_stat(&the_index, ce, &st, 0)))
 		return 1;
 
 	return 0;

@@ -4216,14 +4216,14 @@ void diff_setup_done(struct diff_options *options)
 	if (options->detect_rename && options->rename_limit < 0)
 		options->rename_limit = diff_rename_limit_default;
 	if (options->setup & DIFF_SETUP_USE_CACHE) {
-		if (!active_cache)
+		if (!the_index.cache)
 			/* read-cache does not die even when it fails
 			 * so it is safe for us to do this here.  Also
 			 * it does not smudge active_cache or active_nr
 			 * when it fails, so we do not have to worry about
 			 * cleaning it up ourselves either.
 			 */
-			read_cache();
+			read_index(&the_index);
 	}
 	if (hexsz < options->abbrev)
 		options->abbrev = hexsz; /* full */

index 2101201a11..ec588289fb 100644
@@ -421,7 +421,8 @@ int checkout_entry(struct cache_entry *ce,
 
 	if (!check_path(path.buf, path.len, &st, state->base_dir_len)) {
 		const struct submodule *sub;
-		unsigned changed = ce_match_stat(ce, &st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE);
+		unsigned changed = ie_match_stat(&the_index, ce, &st,
+						 CE_MATCH_IGNORE_VALID | CE_MATCH_IGNORE_SKIP_WORKTREE);
 		/*
 		 * Needs to be checked before !changed returns early,
 		 * as the possibly empty directory was not changed

index 5eb907f46e..2a9dfe3b33 100644
@@ -319,7 +319,7 @@ static int add_cacheinfo(struct merge_options *o,
 	if (!ce)
 		return err(o, _("add_cacheinfo failed for path '%s'; merge aborting."), path);
 
-	ret = add_cache_entry(ce, options);
+	ret = add_index_entry(&the_index, ce, options);
 	if (refresh) {
 		struct cache_entry *nce;
 

@@ -327,7 +327,7 @@ static int add_cacheinfo(struct merge_options *o,
 		if (!nce)
 			return err(o, _("add_cacheinfo failed to refresh for path '%s'; merge aborting."), path);
 		if (nce != ce)
-			ret = add_cache_entry(nce, options);
+			ret = add_index_entry(&the_index, nce, options);
 	}
 	return ret;
 }

@@ -365,7 +365,7 @@ static int unpack_trees_start(struct merge_options *o,
 	init_tree_desc_from_tree(t+2, merge);
 
 	rc = unpack_trees(3, t, &o->unpack_opts);
-	cache_tree_free(&active_cache_tree);
+	cache_tree_free(&the_index.cache_tree);
 
 	/*
 	 * Update the_index to match the new results, AFTER saving a copy

@@ -390,11 +390,11 @@ struct tree *write_tree_from_memory(struct merge_options *o)
 {
 	struct tree *result = NULL;
 
-	if (unmerged_cache()) {
+	if (unmerged_index(&the_index)) {
 		int i;
 		fprintf(stderr, "BUG: There are unmerged index entries:\n");
-		for (i = 0; i < active_nr; i++) {
-			const struct cache_entry *ce = active_cache[i];
+		for (i = 0; i < the_index.cache_nr; i++) {
+			const struct cache_entry *ce = the_index.cache[i];
 			if (ce_stage(ce))
 				fprintf(stderr, "BUG: %d %.*s\n", ce_stage(ce),
 					(int)ce_namelen(ce), ce->name);

@@ -402,16 +402,16 @@ struct tree *write_tree_from_memory(struct merge_options *o)
 		BUG("unmerged index entries in merge-recursive.c");
 	}
 
-	if (!active_cache_tree)
-		active_cache_tree = cache_tree();
+	if (!the_index.cache_tree)
+		the_index.cache_tree = cache_tree();
 
-	if (!cache_tree_fully_valid(active_cache_tree) &&
+	if (!cache_tree_fully_valid(the_index.cache_tree) &&
 	    cache_tree_update(&the_index, 0) < 0) {
 		err(o, _("error building trees"));
 		return NULL;
 	}
 
-	result = lookup_tree(&active_cache_tree->oid);
+	result = lookup_tree(&the_index.cache_tree->oid);
 
 	return result;
 }

@@ -488,10 +488,10 @@ static struct string_list *get_unmerged(void)
 
 	unmerged->strdup_strings = 1;
 
-	for (i = 0; i < active_nr; i++) {
+	for (i = 0; i < the_index.cache_nr; i++) {
 		struct string_list_item *item;
 		struct stage_data *e;
-		const struct cache_entry *ce = active_cache[i];
+		const struct cache_entry *ce = the_index.cache[i];
 		if (!ce_stage(ce))
 			continue;
 

@@ -651,7 +651,7 @@ static int update_stages(struct merge_options *opt, const char *path,
 	int clear = 1;
 	int options = ADD_CACHE_OK_TO_ADD | ADD_CACHE_SKIP_DFCHECK;
 	if (clear)
-		if (remove_file_from_cache(path))
+		if (remove_file_from_index(&the_index, path))
 			return -1;
 	if (o)
 		if (add_cacheinfo(opt, o->mode, &o->oid, path, 1, 0, options))

@@ -707,13 +707,14 @@ static int remove_file(struct merge_options *o, int clean,
 	int update_working_directory = !o->call_depth && !no_wd;
 
 	if (update_cache) {
-		if (remove_file_from_cache(path))
+		if (remove_file_from_index(&the_index, path))
 			return -1;
 	}
 	if (update_working_directory) {
 		if (ignore_case) {
 			struct cache_entry *ce;
-			ce = cache_file_exists(path, strlen(path), ignore_case);
+			ce = index_file_exists(&the_index, path, strlen(path),
+					       ignore_case);
 			if (ce && ce_stage(ce) == 0 && strcmp(path, ce->name))
 				return 0;
 		}

@@ -772,12 +773,12 @@ static int dir_in_way(const char *path, int check_working_copy, int empty_ok)
 	strbuf_addstr(&dirpath, path);
 	strbuf_addch(&dirpath, '/');
 
-	pos = cache_name_pos(dirpath.buf, dirpath.len);
+	pos = index_name_pos(&the_index, dirpath.buf, dirpath.len);
 
 	if (pos < 0)
 		pos = -1 - pos;
-	if (pos < active_nr &&
-	    !strncmp(dirpath.buf, active_cache[pos]->name, dirpath.len)) {
+	if (pos < the_index.cache_nr &&
+	    !strncmp(dirpath.buf, the_index.cache[pos]->name, dirpath.len)) {
 		strbuf_release(&dirpath);
 		return 1;
 	}

@@ -839,19 +840,19 @@ static int would_lose_untracked(const char *path)
 	 * update_file()/would_lose_untracked(); see every comment in this
 	 * file which mentions "update_stages".
 	 */
-	int pos = cache_name_pos(path, strlen(path));
+	int pos = index_name_pos(&the_index, path, strlen(path));
 
 	if (pos < 0)
 		pos = -1 - pos;
-	while (pos < active_nr &&
-	       !strcmp(path, active_cache[pos]->name)) {
+	while (pos < the_index.cache_nr &&
+	       !strcmp(path, the_index.cache[pos]->name)) {
 		/*
 		 * If stage #0, it is definitely tracked.
 		 * If it has stage #2 then it was tracked
 		 * before this merge started.  All other
 		 * cases the path was not tracked.
 		 */
-		switch (ce_stage(active_cache[pos])) {
+		switch (ce_stage(the_index.cache[pos])) {
 		case 0:
 		case 2:
 			return 0;

@@ -1466,7 +1467,7 @@ static int handle_change_delete(struct merge_options *o,
 		 * correct; since there is no true "middle point" between
 		 * them, simply reuse the base version for virtual merge base.
 		 */
-		ret = remove_file_from_cache(path);
+		ret = remove_file_from_index(&the_index, path);
 		if (!ret)
 			ret = update_file(o, 0, o_oid, o_mode, update_path);
 	} else {

@@ -1527,7 +1528,7 @@ static int conflict_rename_delete(struct merge_options *o,
 		return -1;
 
 	if (o->call_depth)
-		return remove_file_from_cache(dest->path);
+		return remove_file_from_index(&the_index, dest->path);
 	else
 		return update_stages(o, dest->path, NULL,
 				     rename_branch == o->branch1 ? dest : NULL,

@@ -1662,14 +1663,14 @@ static int conflict_rename_rename_1to2(struct merge_options *o,
 				return -1;
 		}
 		else
-			remove_file_from_cache(a->path);
+			remove_file_from_index(&the_index, a->path);
 		add = filespec_from_entry(&other, ci->dst_entry2, 3 ^ 1);
 		if (add) {
 			if (update_file(o, 0, &add->oid, add->mode, b->path))
 				return -1;
 		}
 		else
-			remove_file_from_cache(b->path);
+			remove_file_from_index(&the_index, b->path);
 	} else if (handle_file(o, a, 2, ci) || handle_file(o, b, 3, ci))
 		return -1;
 

@@ -3063,7 +3064,7 @@ static int merge_content(struct merge_options *o,
 	if (df_conflict_remains || is_dirty) {
 		char *new_path;
 		if (o->call_depth) {
-			remove_file_from_cache(path);
+			remove_file_from_index(&the_index, path);
 		} else {
 			if (!mfi.clean) {
 				if (update_stages(o, path, &one, &a, &b))

@@ -3220,7 +3221,7 @@ static int process_entry(struct merge_options *o,
 			if (update_file(o, 0, oid, mode, new_path))
 				clean_merge = -1;
 			else if (o->call_depth)
-				remove_file_from_cache(path);
+				remove_file_from_index(&the_index, path);
 			free(new_path);
 		} else {
 			output(o, 2, _("Adding %s"), path);

@@ -3284,7 +3285,7 @@ int merge_trees(struct merge_options *o,
 		return -1;
 	}
 
-	if (unmerged_cache()) {
+	if (unmerged_index(&the_index)) {
 		struct string_list *entries;
 		struct rename_info re_info;
 		int i;

@@ -3415,7 +3416,7 @@ int merge_recursive(struct merge_options *o,
 		 * overwritten it: the committed "conflicts" were
 		 * already resolved.
 		 */
-		discard_cache();
+		discard_index(&the_index);
 		saved_b1 = o->branch1;
 		saved_b2 = o->branch2;
 		o->branch1 = "Temporary merge branch 1";

@@ -3431,9 +3432,9 @@ int merge_recursive(struct merge_options *o,
 			return err(o, _("merge returned no commit"));
 	}
 
-	discard_cache();
+	discard_index(&the_index);
 	if (!o->call_depth)
-		read_cache();
+		read_index(&the_index);
 
 	o->ancestor = "merged common ancestors";
 	clean = merge_trees(o, get_commit_tree(h1), get_commit_tree(h2),

index 0783858739..21e6dc09be 100644
@@ -36,12 +36,12 @@ int index_has_changes(struct strbuf *sb)
 		diff_flush(&opt);
 		return opt.flags.has_changes != 0;
 	} else {
-		for (i = 0; sb && i < active_nr; i++) {
+		for (i = 0; sb && i < the_index.cache_nr; i++) {
 			if (i)
 				strbuf_addch(sb, ' ');
-			strbuf_addstr(sb, active_cache[i]->name);
+			strbuf_addstr(sb, the_index.cache[i]->name);
 		}
-		return !!active_nr;
+		return !!the_index.cache_nr;
 	}
 }
 

@@ -66,10 +66,10 @@ int try_merge_command(const char *strategy, size_t xopts_nr,
 	ret = run_command_v_opt(args.argv, RUN_GIT_CMD);
 	argv_array_clear(&args);
 
-	discard_cache();
-	if (read_cache() < 0)
+	discard_index(&the_index);
+	if (read_index(&the_index) < 0)
 		die(_("failed to read the cache"));
-	resolve_undo_clear();
+	resolve_undo_clear_index(&the_index);
 
 	return ret;
 }

@@ -85,7 +85,7 @@ int checkout_fast_forward(const struct object_id *head,
 	struct dir_struct dir;
 	struct lock_file lock_file = LOCK_INIT;
 
-	refresh_cache(REFRESH_QUIET);
+	refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL);
 
 	if (hold_locked_index(&lock_file, LOCK_REPORT_ON_ERROR) < 0)
 		return -1;

index e0862e2778..810e86d246 100644
@@ -524,7 +524,7 @@ static int handle_file(const char *path, unsigned char *sha1, const char *output
  */
 static int check_one_conflict(int i, int *type)
 {
-	const struct cache_entry *e = active_cache[i];
+	const struct cache_entry *e = the_index.cache[i];
 
 	if (!ce_stage(e)) {
 		*type = RESOLVED;

@@ -532,13 +532,13 @@ static int check_one_conflict(int i, int *type)
 	}
 
 	*type = PUNTED;
-	while (ce_stage(active_cache[i]) == 1)
+	while (ce_stage(the_index.cache[i]) == 1)
 		i++;
 
 	/* Only handle regular files with both stages #2 and #3 */
-	if (i + 1 < active_nr) {
-		const struct cache_entry *e2 = active_cache[i];
-		const struct cache_entry *e3 = active_cache[i + 1];
+	if (i + 1 < the_index.cache_nr) {
+		const struct cache_entry *e2 = the_index.cache[i];
+		const struct cache_entry *e3 = the_index.cache[i + 1];
 		if (ce_stage(e2) == 2 &&
 		    ce_stage(e3) == 3 &&
 		    ce_same_name(e, e3) &&

@@ -548,7 +548,7 @@ static int check_one_conflict(int i, int *type)
 	}
 
 	/* Skip the entries with the same name */
-	while (i < active_nr && ce_same_name(e, active_cache[i]))
+	while (i < the_index.cache_nr && ce_same_name(e, the_index.cache[i]))
 		i++;
 	return i;
 }

@@ -567,12 +567,12 @@ static int check_one_conflict(int i, int *type)
 static int find_conflict(struct string_list *conflict)
 {
 	int i;
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		return error("Could not read index");
 
-	for (i = 0; i < active_nr;) {
+	for (i = 0; i < the_index.cache_nr;) {
 		int conflict_type;
-		const struct cache_entry *e = active_cache[i];
+		const struct cache_entry *e = the_index.cache[i];
 		i = check_one_conflict(i, &conflict_type);
 		if (conflict_type == THREE_STAGED)
 			string_list_insert(conflict, (const char *)e->name);

@@ -600,12 +600,12 @@ int rerere_remaining(struct string_list *merge_rr)
 	int i;
 	if (setup_rerere(merge_rr, RERERE_READONLY))
 		return 0;
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		return error("Could not read index");
 
-	for (i = 0; i < active_nr;) {
+	for (i = 0; i < the_index.cache_nr;) {
 		int conflict_type;
-		const struct cache_entry *e = active_cache[i];
+		const struct cache_entry *e = the_index.cache[i];
 		i = check_one_conflict(i, &conflict_type);
 		if (conflict_type == PUNTED)
 			string_list_insert(merge_rr, (const char *)e->name);

@@ -712,7 +712,7 @@ static void update_paths(struct string_list *update)
 
 	for (i = 0; i < update->nr; i++) {
 		struct string_list_item *item = &update->items[i];
-		if (add_file_to_cache(item->string, 0))
+		if (add_file_to_index(&the_index, item->string, 0))
 			exit(128);
 		fprintf(stderr, "Staged '%s' using previous resolution.\n",
 			item->string);

@@ -964,16 +964,16 @@ static int handle_cache(const char *path, unsigned char *sha1, const char *outpu
 	 * Reproduce the conflicted merge in-core
 	 */
 	len = strlen(path);
-	pos = cache_name_pos(path, len);
+	pos = index_name_pos(&the_index, path, len);
 	if (0 <= pos)
 		return -1;
 	pos = -pos - 1;
 
-	while (pos < active_nr) {
+	while (pos < the_index.cache_nr) {
 		enum object_type type;
 		unsigned long size;
 
-		ce = active_cache[pos++];
+		ce = the_index.cache[pos++];
 		if (ce_namelen(ce) != len || memcmp(ce->name, path, len))
 			break;
 		i = ce_stage(ce) - 1;

@@ -1102,7 +1102,7 @@ int rerere_forget(struct pathspec *pathspec)
 	struct string_list conflict = STRING_LIST_INIT_DUP;
 	struct string_list merge_rr = STRING_LIST_INIT_DUP;
 
-	if (read_cache() < 0)
+	if (read_index(&the_index) < 0)
 		return error("Could not read index");
 
 	fd = setup_rerere(&merge_rr, RERERE_NOAUTOUPDATE);

@@ -1114,7 +1114,7 @@ int rerere_forget(struct pathspec *pathspec)
 	 * recover the original conflicted state and then
 	 * find the conflicted paths.
 	 */
-	unmerge_cache(pathspec);
+	unmerge_index(&the_index, pathspec);
 	find_conflict(&conflict);
 	for (i = 0; i < conflict.nr; i++) {
 		struct string_list_item *it = &conflict.items[i];

index 40fd91ff2b..d56ca57717 100644
@@ -1354,7 +1354,7 @@ void add_index_objects_to_pending(struct rev_info *revs, unsigned int flags)
 {
 	struct worktree **worktrees, **p;
 
-	read_cache();
+	read_index(&the_index);
 	do_add_index_objects_to_pending(revs, &the_index);
 
 	if (revs->single_worktree)

@@ -1495,10 +1495,10 @@ static void prepare_show_merge(struct rev_info *revs)
 	free_commit_list(bases);
 	head->object.flags |= SYMMETRIC_LEFT;
 
-	if (!active_nr)
-		read_cache();
-	for (i = 0; i < active_nr; i++) {
-		const struct cache_entry *ce = active_cache[i];
+	if (!the_index.cache_nr)
+		read_index(&the_index);
+	for (i = 0; i < the_index.cache_nr; i++) {
+		const struct cache_entry *ce = the_index.cache[i];
 		if (!ce_stage(ce))
 			continue;
 		if (ce_path_match(ce, &revs->prune_data, NULL)) {

@@ -1507,8 +1507,8 @@ static void prepare_show_merge(struct rev_info *revs)
 			prune[prune_num-2] = ce->name;
 			prune[prune_num-1] = NULL;
 		}
-		while ((i+1 < active_nr) &&
-		       ce_same_name(ce, active_cache[i+1]))
+		while ((i+1 < the_index.cache_nr) &&
+		       ce_same_name(ce, the_index.cache[i+1]))
 			i++;
 	}
 	clear_pathspec(&revs->prune_data);

index cca968043e..ed8af2a4cd 100644
@@ -435,7 +435,7 @@ static struct tree *empty_tree(void)
 
 static int error_dirty_index(struct replay_opts *opts)
 {
-	if (read_cache_unmerged())
+	if (read_index_unmerged(&the_index))
 		return error_resolve_conflict(_(action_name(opts)));
 
 	error(_("your local changes would be overwritten by %s."),

@@ -467,7 +467,7 @@ static int fast_forward_to(const struct object_id *to, const struct object_id *f
 	struct strbuf sb = STRBUF_INIT;
 	struct strbuf err = STRBUF_INIT;
 
-	read_cache();
+	read_index(&the_index);
 	if (checkout_fast_forward(from, to, 1))
 		return -1; /* the callee should have complained already */
 

@@ -500,12 +500,12 @@ void append_conflicts_hint(struct strbuf *msgbuf)
 
 	strbuf_addch(msgbuf, '\n');
 	strbuf_commented_addf(msgbuf, "Conflicts:\n");
-	for (i = 0; i < active_nr;) {
-		const struct cache_entry *ce = active_cache[i++];
+	for (i = 0; i < the_index.cache_nr;) {
+		const struct cache_entry *ce = the_index.cache[i++];
 		if (ce_stage(ce)) {
 			strbuf_commented_addf(msgbuf, "\t%s\n", ce->name);
-			while (i < active_nr && !strcmp(ce->name,
-							active_cache[i]->name))
+			while (i < the_index.cache_nr && !strcmp(ce->name,
+								 the_index.cache[i]->name))
 				i++;
 		}
 	}

@@ -525,7 +525,7 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
 	if (hold_locked_index(&index_lock, LOCK_REPORT_ON_ERROR) < 0)
 		return -1;
 
-	read_cache();
+	read_index(&the_index);
 
 	init_merge_options(&o);
 	o.ancestor = base ? base_label : "(empty tree)";

@@ -571,16 +571,16 @@ static int do_recursive_merge(struct commit *base, struct commit *next,
 
 static struct object_id *get_cache_tree_oid(void)
 {
-	if (!active_cache_tree)
-		active_cache_tree = cache_tree();
+	if (!the_index.cache_tree)
+		the_index.cache_tree = cache_tree();
 
-	if (!cache_tree_fully_valid(active_cache_tree))
+	if (!cache_tree_fully_valid(the_index.cache_tree))
 		if (cache_tree_update(&the_index, 0)) {
 			error(_("unable to update cache tree"));
 			return NULL;
 		}
 
-	return &active_cache_tree->oid;
+	return &the_index.cache_tree->oid;
 }
 
 static int is_index_unchanged(void)

@@ -1644,7 +1644,7 @@ static int do_pick_commit(enum todo_command command, struct commit *commit,
 				       NULL, 0))
 			return error_dirty_index(opts);
 	}
-	discard_cache();
+	discard_index(&the_index);
 
 	if (!commit->parents)
 		parent = NULL;

@@ -2637,7 +2637,7 @@ static int do_exec(const char *command_line)
 					  child_env.argv);
 
 	/* force re-reading of the cache */
-	if (discard_cache() < 0 || read_cache() < 0)
+	if (discard_index(&the_index) < 0 || read_index(&the_index) < 0)
 		return error(_("could not read index"));
 
 	dirty = require_clean_work_tree("rebase", NULL, 1, 1);

@@ -2801,7 +2801,7 @@ static int do_reset(const char *name, int len, struct replay_opts *opts)
 	unpack_tree_opts.merge = 1;
 	unpack_tree_opts.update = 1;
 
-	if (read_cache_unmerged()) {
+	if (read_index_unmerged(&the_index)) {
 		rollback_lock_file(&lock);
 		strbuf_release(&ref_name);
 		return error_resolve_conflict(_(action_name(opts)));

@@ -2991,7 +2991,7 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
 		commit_list_insert(j->item, &reversed);
 	free_commit_list(bases);
 
-	read_cache();
+	read_index(&the_index);
 	init_merge_options(&o);
 	o.branch1 = "HEAD";
 	o.branch2 = ref_name.buf;

@@ -3016,7 +3016,7 @@ static int do_merge(struct commit *commit, const char *arg, int arg_len,
 	 */
 	ret = !ret;
 
-	if (active_cache_changed &&
+	if (the_index.cache_changed &&
 	    write_locked_index(&the_index, &lock, COMMIT_LOCK)) {
 		ret = error(_("merge: Unable to write new index file"));
 		goto leave_merge;

index 60d9ef3c7e..8344d9a9e0 100644
@@ -1560,11 +1560,11 @@ static void diagnose_invalid_index_path(int stage,
 		prefix = "";
 
 	/* Wrong stage number? */
-	pos = cache_name_pos(filename, namelen);
+	pos = index_name_pos(&the_index, filename, namelen);
 	if (pos < 0)
 		pos = -pos - 1;
-	if (pos < active_nr) {
-		ce = active_cache[pos];
+	if (pos < the_index.cache_nr) {
+		ce = the_index.cache[pos];
 		if (ce_namelen(ce) == namelen &&
 		    !memcmp(ce->name, filename, namelen))
 			die("Path '%s' is in the index, but not at stage %d.\n"

@@ -1576,11 +1576,11 @@ static void diagnose_invalid_index_path(int stage,
 	/* Confusion between relative and absolute filenames? */
 	strbuf_addstr(&fullname, prefix);
 	strbuf_addstr(&fullname, filename);
-	pos = cache_name_pos(fullname.buf, fullname.len);
+	pos = index_name_pos(&the_index, fullname.buf, fullname.len);
 	if (pos < 0)
 		pos = -pos - 1;
-	if (pos < active_nr) {
-		ce = active_cache[pos];
+	if (pos < the_index.cache_nr) {
+		ce = the_index.cache[pos];
 		if (ce_namelen(ce) == fullname.len &&
 		    !memcmp(ce->name, fullname.buf, fullname.len))
 			die("Path '%s' is in the index, but not '%s'.\n"

@@ -1672,13 +1672,13 @@ static int get_oid_with_context_1(const char *name,
 		if (flags & GET_OID_RECORD_PATH)
 			oc->path = xstrdup(cp);
 
-		if (!active_cache)
-			read_cache();
-		pos = cache_name_pos(cp, namelen);
+		if (!the_index.cache)
+			read_index(&the_index);
+		pos = index_name_pos(&the_index, cp, namelen);
 		if (pos < 0)
 			pos = -pos - 1;
-		while (pos < active_nr) {
-			ce = active_cache[pos];
+		while (pos < the_index.cache_nr) {
+			ce = the_index.cache[pos];
 			if (ce_namelen(ce) != namelen ||
 			    memcmp(ce->name, cp, namelen))
 				break;

index d1c05145a4..9859a43ec8 100644
@@ -499,14 +499,14 @@ static int unmerged_mask(const char *path)
 	int pos, mask;
 	const struct cache_entry *ce;
 
-	pos = cache_name_pos(path, strlen(path));
+	pos = index_name_pos(&the_index, path, strlen(path));
 	if (0 <= pos)
 		return 0;
 
 	mask = 0;
 	pos = -pos-1;
-	while (pos < active_nr) {
-		ce = active_cache[pos++];
+	while (pos < the_index.cache_nr) {
+		ce = the_index.cache[pos++];
 		if (strcmp(ce->name, path) || !ce_stage(ce))
 			break;
 		mask |= (1 << (ce_stage(ce) - 1));

@@ -642,10 +642,10 @@ static void wt_status_collect_changes_initial(struct wt_status *s)
 {
 	int i;
 
-	for (i = 0; i < active_nr; i++) {
+	for (i = 0; i < the_index.cache_nr; i++) {
 		struct string_list_item *it;
 		struct wt_status_change_data *d;
-		const struct cache_entry *ce = active_cache[i];
+		const struct cache_entry *ce = the_index.cache[i];
 
 		if (!ce_path_match(ce, &s->pathspec, NULL))
 			continue;

@@ -702,7 +702,7 @@ static void wt_status_collect_untracked(struct wt_status *s)
 
 	for (i = 0; i < dir.nr; i++) {
 		struct dir_entry *ent = dir.entries[i];
-		if (cache_name_is_other(ent->name, ent->len) &&
+		if (index_name_is_other(&the_index, ent->name, ent->len) &&
 		    dir_path_match(ent, &s->pathspec, 0, NULL))
 			string_list_insert(&s->untracked, ent->name);
 		free(ent);

@@ -710,7 +710,7 @@ static void wt_status_collect_untracked(struct wt_status *s)
 
 	for (i = 0; i < dir.ignored_nr; i++) {
 		struct dir_entry *ent = dir.ignored[i];
-		if (cache_name_is_other(ent->name, ent->len) &&
+		if (index_name_is_other(&the_index, ent->name, ent->len) &&
 		    dir_path_match(ent, &s->pathspec, 0, NULL))
 			string_list_insert(&s->ignored, ent->name);
 		free(ent);

@@ -2180,11 +2180,11 @@ static void wt_porcelain_v2_print_unmerged_entry(
 	 */
 	memset(stages, 0, sizeof(stages));
 	sum = 0;
-	pos = cache_name_pos(it->string, strlen(it->string));
+	pos = index_name_pos(&the_index, it->string, strlen(it->string));
 	assert(pos < 0);
 	pos = -pos-1;
-	while (pos < active_nr) {
-		ce = active_cache[pos++];
+	while (pos < the_index.cache_nr) {
+		ce = the_index.cache[pos++];
 		stage = ce_stage(ce);
 		if (strcmp(ce->name, it->string) || !stage)
 			break;

@@ -2333,7 +2333,7 @@ int has_uncommitted_changes(int ignore_submodules)
 	struct rev_info rev_info;
 	int result;
 
-	if (is_cache_unborn())
+	if (is_index_unborn(&the_index))
 		return 0;
 
 	init_revisions(&rev_info, NULL);

@@ -2356,7 +2356,7 @@ int require_clean_work_tree(const char *action, const char *hint, int ignore_sub
 	int err = 0, fd;
 
 	fd = hold_locked_index(&lock_file, 0);
-	refresh_cache(REFRESH_QUIET);
+	refresh_index(&the_index, REFRESH_QUIET, NULL, NULL, NULL);
 	if (0 <= fd)
 		update_index_if_able(&the_index, &lock_file);
 	rollback_lock_file(&lock_file);

index 067fb9e0c0..d16625661d 100644
@@ -7,7 +7,6 @@
  * an insanely large number of attributes.
  */
 
-#define NO_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "exec-cmd.h"

index 8a155dd41e..b93193c3fe 100644
@@ -3,6 +3,7 @@
  *
  * Copyright (C) 2006 Linus Torvalds
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "builtin.h"

index 2fc2d1e82c..28af59d183 100644
@@ -3,6 +3,7 @@
  *
  * Based on git-am.sh by Junio C Hamano.
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "builtin.h"

index 91444dc044..d9cebd5382 100644
@@ -1,3 +1,4 @@
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "cache.h"
 #include "config.h"

index ec9a959e08..599097304b 100644
@@ -1,3 +1,4 @@
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "cache.h"
 #include "config.h"

index a730f6a1aa..e38ad42dbf 100644
@@ -4,6 +4,7 @@
  * Copyright (C) 2005 Linus Torvalds
  *
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "config.h"
 #include "lockfile.h"

index 2e1d2376d2..2250611407 100644
@@ -1,3 +1,4 @@
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "config.h"
 #include "checkout.h"

index fad533a0a7..2258379ecc 100644
@@ -6,6 +6,7 @@
  * Based on git-clean.sh by Pavel Roskin
  */
 
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "cache.h"
 #include "config.h"

index a842fea666..98a5b4a8c8 100644
@@ -5,6 +5,7 @@
  * Based on git-commit.sh by Junio C Hamano and Linus Torvalds
  */
 
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "lockfile.h"

index cf1ae77d7c..4ca234972e 100644
@@ -1,3 +1,4 @@
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "lockfile.h"

index e88493ffe5..af706b4fce 100644
@@ -3,6 +3,7 @@
  *
  * Copyright (C) Linus Torvalds, 2005
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "diff.h"

index 522f4fdffd..c026ffb95e 100644
@@ -1,3 +1,4 @@
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "diff.h"

index 473615117e..bd2264ed5c 100644
@@ -1,3 +1,4 @@
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "diff.h"

index bfefff3a84..17d7d5c9f5 100644
@@ -3,6 +3,7 @@
  *
  * Copyright (c) 2006 Junio C Hamano
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "lockfile.h"

index 3ad4f160f9..33cb71d269 100644
@@ -1,3 +1,4 @@
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "cache.h"
 #include "repository.h"

index 88bb2019ad..dbf5d13d91 100644
@@ -5,7 +5,6 @@
  *
  * Copyright (C) Linus Torvalds, 2005
  */
-#define NO_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "repository.h"
 #include "config.h"

index c99443b095..38ea6ad6ca 100644
@@ -1,3 +1,4 @@
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "run-command.h"
 

index c84c6e05e9..7c4a80ed3b 100644
@@ -7,6 +7,7 @@
  *
  * Pretend we resolved the heads, but declare our tree trumps everybody else.
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "git-compat-util.h"
 #include "builtin.h"
 #include "diff.h"

index b00d6f4821..1b540e2194 100644
@@ -6,6 +6,7 @@
  * Based on git-merge.sh by Junio C Hamano.
  */
 
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "parse-options.h"

index 80bb967a63..be15ba7044 100644
@@ -3,6 +3,7 @@
  *
  * Copyright (C) 2006 Johannes Schindelin
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "config.h"
 #include "pathspec.h"

index 1f2ecf3a88..1c3657dee2 100644
@@ -5,6 +5,7 @@
  *
  * Fetch one or more remote refs and merge it/them into the current HEAD.
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "builtin.h"

index ebc43eb805..ae6ca3a8c5 100644
@@ -4,6 +4,7 @@
  * Copyright (C) Linus Torvalds, 2005
  */
 
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "lockfile.h"

index a862c70fab..dd60eec9d6 100644
@@ -7,6 +7,7 @@
  *
  * Copyright (c) 2005, 2006 Linus Torvalds and Junio C Hamano
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "config.h"
 #include "lockfile.h"

index 4f49e96bfd..b5f8d6a83d 100644
@@ -3,6 +3,7 @@
  *
  * Copyright (C) Linus Torvalds, 2005
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "commit.h"

index 65b448ef8e..e5b77e429d 100644
@@ -3,6 +3,7 @@
  *
  * Copyright (C) Linus Torvalds 2006
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "config.h"
 #include "lockfile.h"

index bd250ca216..8abe15144b 100644
@@ -1,3 +1,4 @@
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "builtin.h"
 #include "repository.h"
 #include "cache.h"

index a8709a26ec..36e837248f 100644
@@ -3,6 +3,7 @@
  *
  * Copyright (C) Linus Torvalds, 2005
  */
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "lockfile.h"

index 89a107a7f7..b3a6d14a36 100644
@@ -339,7 +339,7 @@ extern void remove_name_hash(struct index_state *istate, struct cache_entry *ce)
 extern void free_name_hash(struct index_state *istate);
 
 
-#ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
+#ifdef USE_THE_INDEX_COMPATIBILITY_MACROS
 #define active_cache (the_index.cache)
 #define active_nr (the_index.cache_nr)
 #define active_alloc (the_index.cache_alloc)

index 64d0d30e08..0895dc5994 100644
@@ -1,4 +1,3 @@
-#define NO_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "attr.h"

index ccf8b4975e..473c47eb2f 100644
@@ -7,7 +7,6 @@
  * Copyright (C) Linus Torvalds, 2005-2006
  *		 Junio Hamano, 2005-2006
  */
-#define NO_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "dir.h"

index 163849831c..12eaa62980 100644
@@ -5,7 +5,6 @@
  *
  * Copyright (C) 2008 Linus Torvalds
  */
-#define NO_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 
 struct dir_entry {

index 27cd606786..6997707477 100644
@@ -1,4 +1,3 @@
-#define NO_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "dir.h"

index 372588260e..2a84ad0797 100644
@@ -3,7 +3,6 @@
  *
  * Copyright (C) Linus Torvalds, 2005
  */
-#define NO_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "config.h"
 #include "tempfile.h"

index 939d6870ec..c6ae29379d 100644
@@ -1,4 +1,3 @@
-#define NO_THE_INDEX_COMPATIBILITY_MACROS
 
 #include "cache.h"
 #include "repository.h"

index bd92fb305a..56a5ce8abb 100644
@@ -1,3 +1,4 @@
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "dir.h"
 

index 7116ddfb94..a7ff69e9f3 100644
@@ -1,6 +1,8 @@
 #ifndef __TEST_TOOL_H__
 #define __TEST_TOOL_H__
 
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
+
 int cmd__chmtime(int argc, const char **argv);
 int cmd__config(int argc, const char **argv);
 int cmd__ctype(int argc, const char **argv);

index 244eb5e665..b5ed7bc22b 100644
@@ -1,4 +1,3 @@
-#define NO_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "cache-tree.h"
 #include "tree.h"

index 3a85a02a77..fd09e812a2 100644
@@ -1,4 +1,3 @@
-#define NO_THE_INDEX_COMPATIBILITY_MACROS
 #include "cache.h"
 #include "argv-array.h"
 #include "repository.h"