added a path_parent function to get path of a file

Now we can load .mtl files without hardcoding the full path from top-level like before. that was a hack!

2 files changed, 31 insertions, 0 deletions

diff --git a/src/platform/path.c b/src/platform/path.c
new file mode 100644
index 0000000..e67102b
--- /dev/null
+++ b/src/platform/path.c
@@ -0,0 +1,15 @@
+#include "path.h"
+
+#include <libgen.h>
+#include <string.h>
+#include "str.h"
+
+#if defined(CEL_PLATFORM_LINUX) || defined(CEL_PLATFORM_MAC)
+path_opt path_parent(const char* path) {
+  char* path_dirname = dirname(path);
+  return (path_opt){ .path = str8_cstr_view(path_dirname), .has_value = true };
+}
+#endif
+#ifdef CEL_PLATFORM_WINDOWS
+// TODO: path_opt path_parent(const char* path)
+#endif
\ No newline at end of file
diff --git a/src/platform/path.h b/src/platform/path.h
new file mode 100644
index 0000000..0ec6993
--- /dev/null
+++ b/src/platform/path.h
@@ -0,0 +1,16 @@
+/**
+ * @file path.h
+ * @brief
+ * @date 2024-03-11
+ * @copyright Copyright (c) 2024
+ */
+#pragma once
+
+#include "str.h"
+
+typedef struct path_opt {
+  str8 path;
+  bool has_value;
+} path_opt;
+
+path_opt path_parent(const char* path);  // TODO: convert to using str8
\ No newline at end of file