From 1af1beb248fe8796023f77c1a4b4a326e772ea5c Mon Sep 17 00:00:00 2001
From: Jeroen van Rijn <Kelimion@users.noreply.github.com>
Date: Sat, 14 Feb 2026 12:52:51 +0100
Subject: Fix filepath.dir

---
 core/path/filepath/path.odin                     | 20 ++++----------------
 tests/core/path/filepath/test_core_filepath.odin | 19 +++++++++++++++++++
 2 files changed, 23 insertions(+), 16 deletions(-)

diff --git a/core/path/filepath/path.odin b/core/path/filepath/path.odin
index a325ce4cd..e383e756c 100644
--- a/core/path/filepath/path.odin
+++ b/core/path/filepath/path.odin
@@ -250,26 +250,14 @@ rel :: proc(base_path, target_path: string, allocator := context.allocator) -> (
 	then `"."` is returned.
 */
 dir :: proc(path: string, allocator := context.allocator) -> string {
-	context.allocator = allocator
-	vol_len := len(volume_name(path))
-	when ODIN_OS == .Windows {
-		if len(path) >= 3 && is_separator(path[2]) {
-			vol_len += 1
-		}
-	}
-	vol := path[:vol_len]
-
 	i := len(path) - 1
-	for i >= vol_len && !is_separator(path[i]) {
+	for i > 0 && !is_separator(path[i]) {
 		i -= 1
 	}
-	dir, dir_err := clean(path[vol_len : i+1], allocator)
+	res, dir_err := clean(path[:i], allocator)
+
 	if dir_err != nil { return "" }
-	defer delete(dir)
-	if dir == "." && vol_len > 2 {
-		return strings.clone(vol)
-	}
-	return strings.concatenate({vol, dir})
+	return res
 }
 
 
diff --git a/tests/core/path/filepath/test_core_filepath.odin b/tests/core/path/filepath/test_core_filepath.odin
index 9ca1b676f..61f87ad02 100644
--- a/tests/core/path/filepath/test_core_filepath.odin
+++ b/tests/core/path/filepath/test_core_filepath.odin
@@ -132,4 +132,23 @@ test_stem :: proc(t: ^testing.T) {
 	for d in short_stem {
 		testing.expect_value(t, filepath.short_stem(d[0]), d[1])
 	}
+}
+
+@(test)
+test_dir :: proc(t: ^testing.T) {
+	when ODIN_OS == .Windows {
+		@static dirs := [][2]string{
+			{"../bin/css",   "..\\bin"},
+			{"W:/Odin/odin", "W:\\Odin"},
+		}
+	} else {
+		@static dirs := [][2]string{
+			{"../bin/css", "../bin"},
+			{"/bin/usr/",  "/bin/usr"},
+		}
+	}
+
+	for d in dirs {
+		testing.expect_value(t, filepath.dir(d[0], context.temp_allocator), d[1])
+	}
 }
\ No newline at end of file
-- 
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