From 3992c80e6b83242ecea647e005b055fabd130c0a Mon Sep 17 00:00:00 2001
From: Riyyi <riyyi3@gmail.com>
Date: Sun, 2 Aug 2026 13:00:35 +0200
Subject: [PATCH] Dir listing with recursion

---
 src/file/file.odin | 58 +++++++++++++++++++++++++++++++---------------
 src/main.odin      |  2 +-
 2 files changed, 40 insertions(+), 20 deletions(-)

diff --git a/src/file/file.odin b/src/file/file.odin
index 0263d47..ac6d5aa 100644
--- a/src/file/file.odin
+++ b/src/file/file.odin
@@ -14,18 +14,18 @@ import "core:strings"
 
 Asset :: struct #all_or_none {
 	relpath: string,
-	size: i64,
-	data: []u8,
+	size:    i64,
+	data:    []u8,
 }
 
 DirectoryEntry :: struct #all_or_none {
 	relpath: string,
-	size: i64,
+	size:    i64,
 }
 
 // -----------------------------------------
 
-list_dir_by_path :: proc(path: string) -> []DirectoryEntry {
+list_dir_by_path :: proc(path: string) -> [dynamic]DirectoryEntry {
 	if !os.is_dir(path) {
 		fmt.eprintln("error: path is not a directory:", path)
 		os.exit(1)
@@ -38,21 +38,25 @@ list_dir_by_path :: proc(path: string) -> []DirectoryEntry {
 	}
 	defer os.close(f)
 
-	return list_dir_impl(f)
+	result := [dynamic]DirectoryEntry{}
+	list_dir_impl(f, &result)
+	return result
 }
 
-list_dir :: proc(f: ^os.File) -> []DirectoryEntry {
+list_dir :: proc(f: ^os.File) -> [dynamic]DirectoryEntry {
 	path := os.name(f)
 	if !os.is_dir(path) {
 		fmt.eprintln("error: path is not a directory:", path)
 		os.exit(1)
 	}
 
-	return list_dir_impl(f)
+	result := [dynamic]DirectoryEntry{}
+	list_dir_impl(f, &result)
+	return result
 }
 
 @(private)
-list_dir_impl :: proc(f: ^os.File) -> []DirectoryEntry {
+list_dir_impl :: proc(f: ^os.File, builder: ^[dynamic]DirectoryEntry) {
 	entries, read_err := os.read_all_directory(f, context.allocator)
 	if read_err != nil {
 		fmt.eprintln("error: read directory failed:", read_err)
@@ -60,6 +64,9 @@ list_dir_impl :: proc(f: ^os.File) -> []DirectoryEntry {
 	}
 	defer delete(entries)
 
+	// Reserve space for new entries
+	reserve(builder, cap(builder) + len(entries))
+
 	working_dir, wd_err := os.get_working_directory(context.allocator)
 	if wd_err != nil {
 		fmt.eprintln("error: get working directory failed:", wd_err)
@@ -67,19 +74,32 @@ list_dir_impl :: proc(f: ^os.File) -> []DirectoryEntry {
 	}
 	defer delete(working_dir)
 
-	result := make([]DirectoryEntry, len(entries))
 	for entry, i in entries {
-		relpath, rel_err := strings.replace(
-			entry.fullpath,
-			working_dir,
-			".",
-			1,
-			context.allocator,
-		)
-		result[i] = DirectoryEntry{relpath = relpath, size = entry.size}
-	}
 
-	return result
+		if entry.type == os.File_Type.Regular {
+			relpath, rel_err := strings.replace(
+				entry.fullpath,
+				working_dir,
+				".",
+				1,
+				context.allocator,
+			)
+			append(
+				builder,
+				DirectoryEntry{relpath = relpath, size = entry.size},
+			)
+		}
+
+		if entry.type == os.File_Type.Directory {
+			dir, dir_err := os.open(entry.fullpath, {.Read})
+			if dir_err != nil {
+				fmt.eprintln("error: open directory failed:", dir_err)
+				os.exit(1)
+			}
+			defer os.close(dir)
+			list_dir_impl(dir, builder) // recurse into directory
+		}
+	}
 }
 
 read_by_path :: proc(path: string) -> []u8 {
diff --git a/src/main.odin b/src/main.odin
index 94c5f5f..c51d5b9 100644
--- a/src/main.odin
+++ b/src/main.odin
@@ -19,6 +19,6 @@ main :: proc() {
 	fmt.println("size:", asset.size)
 	fmt.println("data:", asset.data)
 
-	entries := file.list_dir_by_path("./build")
+	entries := file.list_dir_by_path("./src")
 	fmt.println("entries:", entries)
 }