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-rw-r--r--third_party/git/notes-merge.c754
1 files changed, 0 insertions, 754 deletions
diff --git a/third_party/git/notes-merge.c b/third_party/git/notes-merge.c
deleted file mode 100644
index 2fe724f1cf..0000000000
--- a/third_party/git/notes-merge.c
+++ /dev/null
@@ -1,754 +0,0 @@
-#include "cache.h"
-#include "commit.h"
-#include "refs.h"
-#include "object-store.h"
-#include "repository.h"
-#include "diff.h"
-#include "diffcore.h"
-#include "xdiff-interface.h"
-#include "ll-merge.h"
-#include "dir.h"
-#include "notes.h"
-#include "notes-merge.h"
-#include "strbuf.h"
-#include "notes-utils.h"
-#include "commit-reach.h"
-
-struct notes_merge_pair {
-	struct object_id obj, base, local, remote;
-};
-
-void init_notes_merge_options(struct repository *r,
-			      struct notes_merge_options *o)
-{
-	memset(o, 0, sizeof(struct notes_merge_options));
-	strbuf_init(&(o->commit_msg), 0);
-	o->verbosity = NOTES_MERGE_VERBOSITY_DEFAULT;
-	o->repo = r;
-}
-
-static int path_to_oid(const char *path, struct object_id *oid)
-{
-	char hex_oid[GIT_MAX_HEXSZ];
-	int i = 0;
-	while (*path && i < the_hash_algo->hexsz) {
-		if (*path != '/')
-			hex_oid[i++] = *path;
-		path++;
-	}
-	if (*path || i != the_hash_algo->hexsz)
-		return -1;
-	return get_oid_hex(hex_oid, oid);
-}
-
-static int verify_notes_filepair(struct diff_filepair *p, struct object_id *oid)
-{
-	switch (p->status) {
-	case DIFF_STATUS_MODIFIED:
-		assert(p->one->mode == p->two->mode);
-		assert(!is_null_oid(&p->one->oid));
-		assert(!is_null_oid(&p->two->oid));
-		break;
-	case DIFF_STATUS_ADDED:
-		assert(is_null_oid(&p->one->oid));
-		break;
-	case DIFF_STATUS_DELETED:
-		assert(is_null_oid(&p->two->oid));
-		break;
-	default:
-		return -1;
-	}
-	assert(!strcmp(p->one->path, p->two->path));
-	return path_to_oid(p->one->path, oid);
-}
-
-static struct notes_merge_pair *find_notes_merge_pair_pos(
-		struct notes_merge_pair *list, int len, struct object_id *obj,
-		int insert_new, int *occupied)
-{
-	/*
-	 * Both diff_tree_remote() and diff_tree_local() tend to process
-	 * merge_pairs in ascending order. Therefore, cache last returned
-	 * index, and search sequentially from there until the appropriate
-	 * position is found.
-	 *
-	 * Since inserts only happen from diff_tree_remote() (which mainly
-	 * _appends_), we don't care that inserting into the middle of the
-	 * list is expensive (using memmove()).
-	 */
-	static int last_index;
-	int i = last_index < len ? last_index : len - 1;
-	int prev_cmp = 0, cmp = -1;
-	while (i >= 0 && i < len) {
-		cmp = oidcmp(obj, &list[i].obj);
-		if (!cmp) /* obj belongs @ i */
-			break;
-		else if (cmp < 0 && prev_cmp <= 0) /* obj belongs < i */
-			i--;
-		else if (cmp < 0) /* obj belongs between i-1 and i */
-			break;
-		else if (cmp > 0 && prev_cmp >= 0) /* obj belongs > i */
-			i++;
-		else /* if (cmp > 0) */ { /* obj belongs between i and i+1 */
-			i++;
-			break;
-		}
-		prev_cmp = cmp;
-	}
-	if (i < 0)
-		i = 0;
-	/* obj belongs at, or immediately preceding, index i (0 <= i <= len) */
-
-	if (!cmp)
-		*occupied = 1;
-	else {
-		*occupied = 0;
-		if (insert_new && i < len) {
-			MOVE_ARRAY(list + i + 1, list + i, len - i);
-			memset(list + i, 0, sizeof(struct notes_merge_pair));
-		}
-	}
-	last_index = i;
-	return list + i;
-}
-
-static struct object_id uninitialized = {
-	"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff" \
-	"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
-};
-
-static struct notes_merge_pair *diff_tree_remote(struct notes_merge_options *o,
-						 const struct object_id *base,
-						 const struct object_id *remote,
-						 int *num_changes)
-{
-	struct diff_options opt;
-	struct notes_merge_pair *changes;
-	int i, len = 0;
-
-	trace_printf("\tdiff_tree_remote(base = %.7s, remote = %.7s)\n",
-	       oid_to_hex(base), oid_to_hex(remote));
-
-	repo_diff_setup(o->repo, &opt);
-	opt.flags.recursive = 1;
-	opt.output_format = DIFF_FORMAT_NO_OUTPUT;
-	diff_setup_done(&opt);
-	diff_tree_oid(base, remote, "", &opt);
-	diffcore_std(&opt);
-
-	changes = xcalloc(diff_queued_diff.nr, sizeof(struct notes_merge_pair));
-
-	for (i = 0; i < diff_queued_diff.nr; i++) {
-		struct diff_filepair *p = diff_queued_diff.queue[i];
-		struct notes_merge_pair *mp;
-		int occupied;
-		struct object_id obj;
-
-		if (verify_notes_filepair(p, &obj)) {
-			trace_printf("\t\tCannot merge entry '%s' (%c): "
-			       "%.7s -> %.7s. Skipping!\n", p->one->path,
-			       p->status, oid_to_hex(&p->one->oid),
-			       oid_to_hex(&p->two->oid));
-			continue;
-		}
-		mp = find_notes_merge_pair_pos(changes, len, &obj, 1, &occupied);
-		if (occupied) {
-			/* We've found an addition/deletion pair */
-			assert(oideq(&mp->obj, &obj));
-			if (is_null_oid(&p->one->oid)) { /* addition */
-				assert(is_null_oid(&mp->remote));
-				oidcpy(&mp->remote, &p->two->oid);
-			} else if (is_null_oid(&p->two->oid)) { /* deletion */
-				assert(is_null_oid(&mp->base));
-				oidcpy(&mp->base, &p->one->oid);
-			} else
-				assert(!"Invalid existing change recorded");
-		} else {
-			oidcpy(&mp->obj, &obj);
-			oidcpy(&mp->base, &p->one->oid);
-			oidcpy(&mp->local, &uninitialized);
-			oidcpy(&mp->remote, &p->two->oid);
-			len++;
-		}
-		trace_printf("\t\tStored remote change for %s: %.7s -> %.7s\n",
-		       oid_to_hex(&mp->obj), oid_to_hex(&mp->base),
-		       oid_to_hex(&mp->remote));
-	}
-	diff_flush(&opt);
-	clear_pathspec(&opt.pathspec);
-
-	*num_changes = len;
-	return changes;
-}
-
-static void diff_tree_local(struct notes_merge_options *o,
-			    struct notes_merge_pair *changes, int len,
-			    const struct object_id *base,
-			    const struct object_id *local)
-{
-	struct diff_options opt;
-	int i;
-
-	trace_printf("\tdiff_tree_local(len = %i, base = %.7s, local = %.7s)\n",
-	       len, oid_to_hex(base), oid_to_hex(local));
-
-	repo_diff_setup(o->repo, &opt);
-	opt.flags.recursive = 1;
-	opt.output_format = DIFF_FORMAT_NO_OUTPUT;
-	diff_setup_done(&opt);
-	diff_tree_oid(base, local, "", &opt);
-	diffcore_std(&opt);
-
-	for (i = 0; i < diff_queued_diff.nr; i++) {
-		struct diff_filepair *p = diff_queued_diff.queue[i];
-		struct notes_merge_pair *mp;
-		int match;
-		struct object_id obj;
-
-		if (verify_notes_filepair(p, &obj)) {
-			trace_printf("\t\tCannot merge entry '%s' (%c): "
-			       "%.7s -> %.7s. Skipping!\n", p->one->path,
-			       p->status, oid_to_hex(&p->one->oid),
-			       oid_to_hex(&p->two->oid));
-			continue;
-		}
-		mp = find_notes_merge_pair_pos(changes, len, &obj, 0, &match);
-		if (!match) {
-			trace_printf("\t\tIgnoring local-only change for %s: "
-			       "%.7s -> %.7s\n", oid_to_hex(&obj),
-			       oid_to_hex(&p->one->oid),
-			       oid_to_hex(&p->two->oid));
-			continue;
-		}
-
-		assert(oideq(&mp->obj, &obj));
-		if (is_null_oid(&p->two->oid)) { /* deletion */
-			/*
-			 * Either this is a true deletion (1), or it is part
-			 * of an A/D pair (2), or D/A pair (3):
-			 *
-			 * (1) mp->local is uninitialized; set it to null_sha1
-			 * (2) mp->local is not uninitialized; don't touch it
-			 * (3) mp->local is uninitialized; set it to null_sha1
-			 *     (will be overwritten by following addition)
-			 */
-			if (oideq(&mp->local, &uninitialized))
-				oidclr(&mp->local);
-		} else if (is_null_oid(&p->one->oid)) { /* addition */
-			/*
-			 * Either this is a true addition (1), or it is part
-			 * of an A/D pair (2), or D/A pair (3):
-			 *
-			 * (1) mp->local is uninitialized; set to p->two->sha1
-			 * (2) mp->local is uninitialized; set to p->two->sha1
-			 * (3) mp->local is null_sha1;     set to p->two->sha1
-			 */
-			assert(is_null_oid(&mp->local) ||
-			       oideq(&mp->local, &uninitialized));
-			oidcpy(&mp->local, &p->two->oid);
-		} else { /* modification */
-			/*
-			 * This is a true modification. p->one->sha1 shall
-			 * match mp->base, and mp->local shall be uninitialized.
-			 * Set mp->local to p->two->sha1.
-			 */
-			assert(oideq(&p->one->oid, &mp->base));
-			assert(oideq(&mp->local, &uninitialized));
-			oidcpy(&mp->local, &p->two->oid);
-		}
-		trace_printf("\t\tStored local change for %s: %.7s -> %.7s\n",
-		       oid_to_hex(&mp->obj), oid_to_hex(&mp->base),
-		       oid_to_hex(&mp->local));
-	}
-	diff_flush(&opt);
-	clear_pathspec(&opt.pathspec);
-}
-
-static void check_notes_merge_worktree(struct notes_merge_options *o)
-{
-	if (!o->has_worktree) {
-		/*
-		 * Must establish NOTES_MERGE_WORKTREE.
-		 * Abort if NOTES_MERGE_WORKTREE already exists
-		 */
-		if (file_exists(git_path(NOTES_MERGE_WORKTREE)) &&
-		    !is_empty_dir(git_path(NOTES_MERGE_WORKTREE))) {
-			if (advice_resolve_conflict)
-				die(_("You have not concluded your previous "
-				    "notes merge (%s exists).\nPlease, use "
-				    "'git notes merge --commit' or 'git notes "
-				    "merge --abort' to commit/abort the "
-				    "previous merge before you start a new "
-				    "notes merge."), git_path("NOTES_MERGE_*"));
-			else
-				die(_("You have not concluded your notes merge "
-				    "(%s exists)."), git_path("NOTES_MERGE_*"));
-		}
-
-		if (safe_create_leading_directories_const(git_path(
-				NOTES_MERGE_WORKTREE "/.test")))
-			die_errno("unable to create directory %s",
-				  git_path(NOTES_MERGE_WORKTREE));
-		o->has_worktree = 1;
-	} else if (!file_exists(git_path(NOTES_MERGE_WORKTREE)))
-		/* NOTES_MERGE_WORKTREE should already be established */
-		die("missing '%s'. This should not happen",
-		    git_path(NOTES_MERGE_WORKTREE));
-}
-
-static void write_buf_to_worktree(const struct object_id *obj,
-				  const char *buf, unsigned long size)
-{
-	int fd;
-	char *path = git_pathdup(NOTES_MERGE_WORKTREE "/%s", oid_to_hex(obj));
-	if (safe_create_leading_directories_const(path))
-		die_errno("unable to create directory for '%s'", path);
-
-	fd = xopen(path, O_WRONLY | O_EXCL | O_CREAT, 0666);
-
-	while (size > 0) {
-		ssize_t ret = write_in_full(fd, buf, size);
-		if (ret < 0) {
-			/* Ignore epipe */
-			if (errno == EPIPE)
-				break;
-			die_errno("notes-merge");
-		}
-		size -= ret;
-		buf += ret;
-	}
-
-	close(fd);
-	free(path);
-}
-
-static void write_note_to_worktree(const struct object_id *obj,
-				   const struct object_id *note)
-{
-	enum object_type type;
-	unsigned long size;
-	void *buf = read_object_file(note, &type, &size);
-
-	if (!buf)
-		die("cannot read note %s for object %s",
-		    oid_to_hex(note), oid_to_hex(obj));
-	if (type != OBJ_BLOB)
-		die("blob expected in note %s for object %s",
-		    oid_to_hex(note), oid_to_hex(obj));
-	write_buf_to_worktree(obj, buf, size);
-	free(buf);
-}
-
-static int ll_merge_in_worktree(struct notes_merge_options *o,
-				struct notes_merge_pair *p)
-{
-	mmbuffer_t result_buf;
-	mmfile_t base, local, remote;
-	int status;
-
-	read_mmblob(&base, &p->base);
-	read_mmblob(&local, &p->local);
-	read_mmblob(&remote, &p->remote);
-
-	status = ll_merge(&result_buf, oid_to_hex(&p->obj), &base, NULL,
-			  &local, o->local_ref, &remote, o->remote_ref,
-			  o->repo->index, NULL);
-
-	free(base.ptr);
-	free(local.ptr);
-	free(remote.ptr);
-
-	if ((status < 0) || !result_buf.ptr)
-		die("Failed to execute internal merge");
-
-	write_buf_to_worktree(&p->obj, result_buf.ptr, result_buf.size);
-	free(result_buf.ptr);
-
-	return status;
-}
-
-static int merge_one_change_manual(struct notes_merge_options *o,
-				   struct notes_merge_pair *p,
-				   struct notes_tree *t)
-{
-	const char *lref = o->local_ref ? o->local_ref : "local version";
-	const char *rref = o->remote_ref ? o->remote_ref : "remote version";
-
-	trace_printf("\t\t\tmerge_one_change_manual(obj = %.7s, base = %.7s, "
-	       "local = %.7s, remote = %.7s)\n",
-	       oid_to_hex(&p->obj), oid_to_hex(&p->base),
-	       oid_to_hex(&p->local), oid_to_hex(&p->remote));
-
-	/* add "Conflicts:" section to commit message first time through */
-	if (!o->has_worktree)
-		strbuf_addstr(&(o->commit_msg), "\n\nConflicts:\n");
-
-	strbuf_addf(&(o->commit_msg), "\t%s\n", oid_to_hex(&p->obj));
-
-	if (o->verbosity >= 2)
-		printf("Auto-merging notes for %s\n", oid_to_hex(&p->obj));
-	check_notes_merge_worktree(o);
-	if (is_null_oid(&p->local)) {
-		/* D/F conflict, checkout p->remote */
-		assert(!is_null_oid(&p->remote));
-		if (o->verbosity >= 1)
-			printf("CONFLICT (delete/modify): Notes for object %s "
-				"deleted in %s and modified in %s. Version from %s "
-				"left in tree.\n",
-				oid_to_hex(&p->obj), lref, rref, rref);
-		write_note_to_worktree(&p->obj, &p->remote);
-	} else if (is_null_oid(&p->remote)) {
-		/* D/F conflict, checkout p->local */
-		assert(!is_null_oid(&p->local));
-		if (o->verbosity >= 1)
-			printf("CONFLICT (delete/modify): Notes for object %s "
-				"deleted in %s and modified in %s. Version from %s "
-				"left in tree.\n",
-				oid_to_hex(&p->obj), rref, lref, lref);
-		write_note_to_worktree(&p->obj, &p->local);
-	} else {
-		/* "regular" conflict, checkout result of ll_merge() */
-		const char *reason = "content";
-		if (is_null_oid(&p->base))
-			reason = "add/add";
-		assert(!is_null_oid(&p->local));
-		assert(!is_null_oid(&p->remote));
-		if (o->verbosity >= 1)
-			printf("CONFLICT (%s): Merge conflict in notes for "
-				"object %s\n", reason,
-				oid_to_hex(&p->obj));
-		ll_merge_in_worktree(o, p);
-	}
-
-	trace_printf("\t\t\tremoving from partial merge result\n");
-	remove_note(t, p->obj.hash);
-
-	return 1;
-}
-
-static int merge_one_change(struct notes_merge_options *o,
-			    struct notes_merge_pair *p, struct notes_tree *t)
-{
-	/*
-	 * Return 0 if change is successfully resolved (stored in notes_tree).
-	 * Return 1 is change results in a conflict (NOT stored in notes_tree,
-	 * but instead written to NOTES_MERGE_WORKTREE with conflict markers).
-	 */
-	switch (o->strategy) {
-	case NOTES_MERGE_RESOLVE_MANUAL:
-		return merge_one_change_manual(o, p, t);
-	case NOTES_MERGE_RESOLVE_OURS:
-		if (o->verbosity >= 2)
-			printf("Using local notes for %s\n",
-						oid_to_hex(&p->obj));
-		/* nothing to do */
-		return 0;
-	case NOTES_MERGE_RESOLVE_THEIRS:
-		if (o->verbosity >= 2)
-			printf("Using remote notes for %s\n",
-						oid_to_hex(&p->obj));
-		if (add_note(t, &p->obj, &p->remote, combine_notes_overwrite))
-			BUG("combine_notes_overwrite failed");
-		return 0;
-	case NOTES_MERGE_RESOLVE_UNION:
-		if (o->verbosity >= 2)
-			printf("Concatenating local and remote notes for %s\n",
-							oid_to_hex(&p->obj));
-		if (add_note(t, &p->obj, &p->remote, combine_notes_concatenate))
-			die("failed to concatenate notes "
-			    "(combine_notes_concatenate)");
-		return 0;
-	case NOTES_MERGE_RESOLVE_CAT_SORT_UNIQ:
-		if (o->verbosity >= 2)
-			printf("Concatenating unique lines in local and remote "
-				"notes for %s\n", oid_to_hex(&p->obj));
-		if (add_note(t, &p->obj, &p->remote, combine_notes_cat_sort_uniq))
-			die("failed to concatenate notes "
-			    "(combine_notes_cat_sort_uniq)");
-		return 0;
-	}
-	die("Unknown strategy (%i).", o->strategy);
-}
-
-static int merge_changes(struct notes_merge_options *o,
-			 struct notes_merge_pair *changes, int *num_changes,
-			 struct notes_tree *t)
-{
-	int i, conflicts = 0;
-
-	trace_printf("\tmerge_changes(num_changes = %i)\n", *num_changes);
-	for (i = 0; i < *num_changes; i++) {
-		struct notes_merge_pair *p = changes + i;
-		trace_printf("\t\t%.7s: %.7s -> %.7s/%.7s\n",
-		       oid_to_hex(&p->obj), oid_to_hex(&p->base),
-		       oid_to_hex(&p->local),
-		       oid_to_hex(&p->remote));
-
-		if (oideq(&p->base, &p->remote)) {
-			/* no remote change; nothing to do */
-			trace_printf("\t\t\tskipping (no remote change)\n");
-		} else if (oideq(&p->local, &p->remote)) {
-			/* same change in local and remote; nothing to do */
-			trace_printf("\t\t\tskipping (local == remote)\n");
-		} else if (oideq(&p->local, &uninitialized) ||
-			   oideq(&p->local, &p->base)) {
-			/* no local change; adopt remote change */
-			trace_printf("\t\t\tno local change, adopted remote\n");
-			if (add_note(t, &p->obj, &p->remote,
-				     combine_notes_overwrite))
-				BUG("combine_notes_overwrite failed");
-		} else {
-			/* need file-level merge between local and remote */
-			trace_printf("\t\t\tneed content-level merge\n");
-			conflicts += merge_one_change(o, p, t);
-		}
-	}
-
-	return conflicts;
-}
-
-static int merge_from_diffs(struct notes_merge_options *o,
-			    const struct object_id *base,
-			    const struct object_id *local,
-			    const struct object_id *remote,
-			    struct notes_tree *t)
-{
-	struct notes_merge_pair *changes;
-	int num_changes, conflicts;
-
-	trace_printf("\tmerge_from_diffs(base = %.7s, local = %.7s, "
-	       "remote = %.7s)\n", oid_to_hex(base), oid_to_hex(local),
-	       oid_to_hex(remote));
-
-	changes = diff_tree_remote(o, base, remote, &num_changes);
-	diff_tree_local(o, changes, num_changes, base, local);
-
-	conflicts = merge_changes(o, changes, &num_changes, t);
-	free(changes);
-
-	if (o->verbosity >= 4)
-		printf(t->dirty ?
-		       "Merge result: %i unmerged notes and a dirty notes tree\n" :
-		       "Merge result: %i unmerged notes and a clean notes tree\n",
-		       conflicts);
-
-	return conflicts ? -1 : 1;
-}
-
-int notes_merge(struct notes_merge_options *o,
-		struct notes_tree *local_tree,
-		struct object_id *result_oid)
-{
-	struct object_id local_oid, remote_oid;
-	struct commit *local, *remote;
-	struct commit_list *bases = NULL;
-	const struct object_id *base_oid, *base_tree_oid;
-	int result = 0;
-
-	assert(o->local_ref && o->remote_ref);
-	assert(!strcmp(o->local_ref, local_tree->ref));
-	oidclr(result_oid);
-
-	trace_printf("notes_merge(o->local_ref = %s, o->remote_ref = %s)\n",
-	       o->local_ref, o->remote_ref);
-
-	/* Dereference o->local_ref into local_sha1 */
-	if (read_ref_full(o->local_ref, 0, &local_oid, NULL))
-		die("Failed to resolve local notes ref '%s'", o->local_ref);
-	else if (!check_refname_format(o->local_ref, 0) &&
-		is_null_oid(&local_oid))
-		local = NULL; /* local_oid == null_oid indicates unborn ref */
-	else if (!(local = lookup_commit_reference(o->repo, &local_oid)))
-		die("Could not parse local commit %s (%s)",
-		    oid_to_hex(&local_oid), o->local_ref);
-	trace_printf("\tlocal commit: %.7s\n", oid_to_hex(&local_oid));
-
-	/* Dereference o->remote_ref into remote_oid */
-	if (get_oid(o->remote_ref, &remote_oid)) {
-		/*
-		 * Failed to get remote_oid. If o->remote_ref looks like an
-		 * unborn ref, perform the merge using an empty notes tree.
-		 */
-		if (!check_refname_format(o->remote_ref, 0)) {
-			oidclr(&remote_oid);
-			remote = NULL;
-		} else {
-			die("Failed to resolve remote notes ref '%s'",
-			    o->remote_ref);
-		}
-	} else if (!(remote = lookup_commit_reference(o->repo, &remote_oid))) {
-		die("Could not parse remote commit %s (%s)",
-		    oid_to_hex(&remote_oid), o->remote_ref);
-	}
-	trace_printf("\tremote commit: %.7s\n", oid_to_hex(&remote_oid));
-
-	if (!local && !remote)
-		die("Cannot merge empty notes ref (%s) into empty notes ref "
-		    "(%s)", o->remote_ref, o->local_ref);
-	if (!local) {
-		/* result == remote commit */
-		oidcpy(result_oid, &remote_oid);
-		goto found_result;
-	}
-	if (!remote) {
-		/* result == local commit */
-		oidcpy(result_oid, &local_oid);
-		goto found_result;
-	}
-	assert(local && remote);
-
-	/* Find merge bases */
-	bases = get_merge_bases(local, remote);
-	if (!bases) {
-		base_oid = &null_oid;
-		base_tree_oid = the_hash_algo->empty_tree;
-		if (o->verbosity >= 4)
-			printf("No merge base found; doing history-less merge\n");
-	} else if (!bases->next) {
-		base_oid = &bases->item->object.oid;
-		base_tree_oid = get_commit_tree_oid(bases->item);
-		if (o->verbosity >= 4)
-			printf("One merge base found (%.7s)\n",
-			       oid_to_hex(base_oid));
-	} else {
-		/* TODO: How to handle multiple merge-bases? */
-		base_oid = &bases->item->object.oid;
-		base_tree_oid = get_commit_tree_oid(bases->item);
-		if (o->verbosity >= 3)
-			printf("Multiple merge bases found. Using the first "
-				"(%.7s)\n", oid_to_hex(base_oid));
-	}
-
-	if (o->verbosity >= 4)
-		printf("Merging remote commit %.7s into local commit %.7s with "
-			"merge-base %.7s\n", oid_to_hex(&remote->object.oid),
-			oid_to_hex(&local->object.oid),
-			oid_to_hex(base_oid));
-
-	if (oideq(&remote->object.oid, base_oid)) {
-		/* Already merged; result == local commit */
-		if (o->verbosity >= 2)
-			printf("Already up to date!\n");
-		oidcpy(result_oid, &local->object.oid);
-		goto found_result;
-	}
-	if (oideq(&local->object.oid, base_oid)) {
-		/* Fast-forward; result == remote commit */
-		if (o->verbosity >= 2)
-			printf("Fast-forward\n");
-		oidcpy(result_oid, &remote->object.oid);
-		goto found_result;
-	}
-
-	result = merge_from_diffs(o, base_tree_oid,
-				  get_commit_tree_oid(local),
-				  get_commit_tree_oid(remote), local_tree);
-
-	if (result != 0) { /* non-trivial merge (with or without conflicts) */
-		/* Commit (partial) result */
-		struct commit_list *parents = NULL;
-		commit_list_insert(remote, &parents); /* LIFO order */
-		commit_list_insert(local, &parents);
-		create_notes_commit(o->repo, local_tree, parents, o->commit_msg.buf,
-				    o->commit_msg.len, result_oid);
-	}
-
-found_result:
-	free_commit_list(bases);
-	strbuf_release(&(o->commit_msg));
-	trace_printf("notes_merge(): result = %i, result_oid = %.7s\n",
-	       result, oid_to_hex(result_oid));
-	return result;
-}
-
-int notes_merge_commit(struct notes_merge_options *o,
-		       struct notes_tree *partial_tree,
-		       struct commit *partial_commit,
-		       struct object_id *result_oid)
-{
-	/*
-	 * Iterate through files in .git/NOTES_MERGE_WORKTREE and add all
-	 * found notes to 'partial_tree'. Write the updated notes tree to
-	 * the DB, and commit the resulting tree object while reusing the
-	 * commit message and parents from 'partial_commit'.
-	 * Finally store the new commit object OID into 'result_oid'.
-	 */
-	DIR *dir;
-	struct dirent *e;
-	struct strbuf path = STRBUF_INIT;
-	const char *buffer = get_commit_buffer(partial_commit, NULL);
-	const char *msg = strstr(buffer, "\n\n");
-	int baselen;
-
-	git_path_buf(&path, NOTES_MERGE_WORKTREE);
-	if (o->verbosity >= 3)
-		printf("Committing notes in notes merge worktree at %s\n",
-			path.buf);
-
-	if (!msg || msg[2] == '\0')
-		die("partial notes commit has empty message");
-	msg += 2;
-
-	dir = opendir(path.buf);
-	if (!dir)
-		die_errno("could not open %s", path.buf);
-
-	strbuf_addch(&path, '/');
-	baselen = path.len;
-	while ((e = readdir(dir)) != NULL) {
-		struct stat st;
-		struct object_id obj_oid, blob_oid;
-
-		if (is_dot_or_dotdot(e->d_name))
-			continue;
-
-		if (get_oid_hex(e->d_name, &obj_oid)) {
-			if (o->verbosity >= 3)
-				printf("Skipping non-SHA1 entry '%s%s'\n",
-					path.buf, e->d_name);
-			continue;
-		}
-
-		strbuf_addstr(&path, e->d_name);
-		/* write file as blob, and add to partial_tree */
-		if (stat(path.buf, &st))
-			die_errno("Failed to stat '%s'", path.buf);
-		if (index_path(o->repo->index, &blob_oid, path.buf, &st, HASH_WRITE_OBJECT))
-			die("Failed to write blob object from '%s'", path.buf);
-		if (add_note(partial_tree, &obj_oid, &blob_oid, NULL))
-			die("Failed to add resolved note '%s' to notes tree",
-			    path.buf);
-		if (o->verbosity >= 4)
-			printf("Added resolved note for object %s: %s\n",
-				oid_to_hex(&obj_oid), oid_to_hex(&blob_oid));
-		strbuf_setlen(&path, baselen);
-	}
-
-	create_notes_commit(o->repo, partial_tree, partial_commit->parents, msg,
-			    strlen(msg), result_oid);
-	unuse_commit_buffer(partial_commit, buffer);
-	if (o->verbosity >= 4)
-		printf("Finalized notes merge commit: %s\n",
-			oid_to_hex(result_oid));
-	strbuf_release(&path);
-	closedir(dir);
-	return 0;
-}
-
-int notes_merge_abort(struct notes_merge_options *o)
-{
-	/*
-	 * Remove all files within .git/NOTES_MERGE_WORKTREE. We do not remove
-	 * the .git/NOTES_MERGE_WORKTREE directory itself, since it might be
-	 * the current working directory of the user.
-	 */
-	struct strbuf buf = STRBUF_INIT;
-	int ret;
-
-	git_path_buf(&buf, NOTES_MERGE_WORKTREE);
-	if (o->verbosity >= 3)
-		printf("Removing notes merge worktree at %s/*\n", buf.buf);
-	ret = remove_dir_recursively(&buf, REMOVE_DIR_KEEP_TOPLEVEL);
-	strbuf_release(&buf);
-	return ret;
-}