Report empty file error instead of OOM

If we are trying to open an empty file, skip the attempts to parse the
input and report an appropriate error message.

Signed-off-by: Miika Turkia <miika.turkia@gmail.com>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/file.c b/file.c
index 0b893dc3f..8522b2e38 100644
--- a/file.c
+++ b/file.c
@@ -447,13 +447,15 @@ int parse_file(const char *filename)
 	if (git && !git_load_dives(git, branch))
 		return 0;
 
-	if (readfile(filename, &mem) < 0) {
+	if ((ret = readfile(filename, &mem)) < 0) {
 		/* we don't want to display an error if this was the default file or the cloud storage */
 		if ((prefs.default_filename && !strcmp(filename, prefs.default_filename)) ||
 		    isCloudUrl(filename))
 			return 0;
 
 		return report_error(translate("gettextFromC", "Failed to read '%s'"), filename);
+	} else if (ret == 0) {
+		return report_error(translate("gettextFromC", "Empty file '%s'"), filename);
 	}
 
 	fmt = strrchr(filename, '.');