base: add iron_is_directory

base/sources/iron.h

@@ -28,6 +28,8 @@
 #include <string.h>
 #ifdef IRON_WINDOWS
 #include <Windows.h>
+#else
+#include <sys/stat.h>
 #endif
 #ifdef WITH_AUDIO
 #include "iron_audio.h"
@@ -1554,6 +1556,16 @@ void iron_create_directory(char *path) {
 #endif
 }
 
+bool iron_is_directory(char *path) {
+#ifdef IRON_WINDOWS
+	DWORD attribs = GetFileAttributesA(path);
+	return attribs != INVALID_FILE_ATTRIBUTES && (attribs & FILE_ATTRIBUTE_DIRECTORY);
+#else
+	struct stat st;
+	return stat(path, &st) == 0 && S_ISDIR(st.st_mode);
+#endif
+}
+
 bool iron_file_exists(char *path) {
 	iron_file_reader_t reader;
 	if (iron_file_reader_open(&reader, path, IRON_FILE_TYPE_ASSET)) {

base/sources/ts/iron.ts

@@ -340,6 +340,7 @@ declare function iron_open_dialog(filter_list: string, default_path: string, ope
 declare function iron_save_dialog(filter_list: string, default_path: string): string;
 declare function iron_read_directory(path: string): string;
 declare function iron_create_directory(path: string): void;
+declare function iron_is_directory(path: string): bool;
 declare function iron_file_exists(path: string): bool;
 declare function iron_delete_file(path: string): void;
 declare function iron_inflate(bytes: buffer_t, raw: bool): buffer_t;