1 files changed, 45 insertions, 30 deletions

diff --git a/notes-merge.c b/notes-merge.c
index fb0832f97d..0f67bd3f96 100644
--- a/notes-merge.c
+++ b/notes-merge.c
@@ -126,8 +126,7 @@ static struct notes_merge_pair *diff_tree_remote(struct notes_merge_options *o,
 	diff_setup(&opt);
 	DIFF_OPT_SET(&opt, RECURSIVE);
 	opt.output_format = DIFF_FORMAT_NO_OUTPUT;
-	if (diff_setup_done(&opt) < 0)
-		die("diff_setup_done failed");
+	diff_setup_done(&opt);
 	diff_tree_sha1(base, remote, "", &opt);
 	diffcore_std(&opt);
 
@@ -190,8 +189,7 @@ static void diff_tree_local(struct notes_merge_options *o,
 	diff_setup(&opt);
 	DIFF_OPT_SET(&opt, RECURSIVE);
 	opt.output_format = DIFF_FORMAT_NO_OUTPUT;
-	if (diff_setup_done(&opt) < 0)
-		die("diff_setup_done failed");
+	diff_setup_done(&opt);
 	diff_tree_sha1(base, local, "", &opt);
 	diffcore_std(&opt);
 
@@ -267,7 +265,8 @@ static void check_notes_merge_worktree(struct notes_merge_options *o)
 		 * Must establish NOTES_MERGE_WORKTREE.
 		 * Abort if NOTES_MERGE_WORKTREE already exists
 		 */
-		if (file_exists(git_path(NOTES_MERGE_WORKTREE))) {
+		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 "
@@ -523,8 +522,10 @@ static int merge_from_diffs(struct notes_merge_options *o,
 	free(changes);
 
 	if (o->verbosity >= 4)
-		printf("Merge result: %i unmerged notes and a %s notes tree\n",
-			conflicts, t->dirty ? "dirty" : "clean");
+		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;
 }
@@ -687,51 +688,60 @@ int notes_merge_commit(struct notes_merge_options *o,
 {
 	/*
 	 * Iterate through files in .git/NOTES_MERGE_WORKTREE and add all
-	 * found notes to 'partial_tree'. Write the updates notes tree to
+	 * 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 SHA1 into 'result_sha1'.
 	 */
-	struct dir_struct dir;
-	char *path = xstrdup(git_path(NOTES_MERGE_WORKTREE "/"));
-	int path_len = strlen(path), i;
+	DIR *dir;
+	struct dirent *e;
+	struct strbuf path = STRBUF_INIT;
 	char *msg = strstr(partial_commit->buffer, "\n\n");
 	struct strbuf sb_msg = STRBUF_INIT;
+	int baselen;
 
+	strbuf_addstr(&path, git_path(NOTES_MERGE_WORKTREE));
 	if (o->verbosity >= 3)
-		printf("Committing notes in notes merge worktree at %.*s\n",
-			path_len - 1, path);
+		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;
 
-	memset(&dir, 0, sizeof(dir));
-	read_directory(&dir, path, path_len, NULL);
-	for (i = 0; i < dir.nr; i++) {
-		struct dir_entry *ent = dir.entries[i];
+	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;
-		const char *relpath = ent->name + path_len;
 		unsigned char obj_sha1[20], blob_sha1[20];
 
-		if (ent->len - path_len != 40 || get_sha1_hex(relpath, obj_sha1)) {
+		if (is_dot_or_dotdot(e->d_name))
+			continue;
+
+		if (strlen(e->d_name) != 40 || get_sha1_hex(e->d_name, obj_sha1)) {
 			if (o->verbosity >= 3)
-				printf("Skipping non-SHA1 entry '%s'\n",
-								ent->name);
+				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(ent->name, &st))
-			die_errno("Failed to stat '%s'", ent->name);
-		if (index_path(blob_sha1, ent->name, &st, HASH_WRITE_OBJECT))
-			die("Failed to write blob object from '%s'", ent->name);
+		if (stat(path.buf, &st))
+			die_errno("Failed to stat '%s'", path.buf);
+		if (index_path(blob_sha1, path.buf, &st, HASH_WRITE_OBJECT))
+			die("Failed to write blob object from '%s'", path.buf);
 		if (add_note(partial_tree, obj_sha1, blob_sha1, NULL))
 			die("Failed to add resolved note '%s' to notes tree",
-			    ent->name);
+			    path.buf);
 		if (o->verbosity >= 4)
 			printf("Added resolved note for object %s: %s\n",
 				sha1_to_hex(obj_sha1), sha1_to_hex(blob_sha1));
+		strbuf_setlen(&path, baselen);
 	}
 
 	strbuf_attach(&sb_msg, msg, strlen(msg), strlen(msg) + 1);
@@ -740,20 +750,25 @@ int notes_merge_commit(struct notes_merge_options *o,
 	if (o->verbosity >= 4)
 		printf("Finalized notes merge commit: %s\n",
 			sha1_to_hex(result_sha1));
-	free(path);
+	strbuf_release(&path);
+	closedir(dir);
 	return 0;
 }
 
 int notes_merge_abort(struct notes_merge_options *o)
 {
-	/* Remove .git/NOTES_MERGE_WORKTREE directory and all files within */
+	/*
+	 * 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;
 
 	strbuf_addstr(&buf, git_path(NOTES_MERGE_WORKTREE));
 	if (o->verbosity >= 3)
-		printf("Removing notes merge worktree at %s\n", buf.buf);
-	ret = remove_dir_recursively(&buf, 0);
+		printf("Removing notes merge worktree at %s/*\n", buf.buf);
+	ret = remove_dir_recursively(&buf, REMOVE_DIR_KEEP_TOPLEVEL);
 	strbuf_release(&buf);
 	return ret;
 }