diff --git a/src/file/file.odin b/src/file/file.odin
index ac6d5aa..c1b5dc6 100644
--- a/src/file/file.odin
+++ b/src/file/file.odin
@@ -1,150 +1,7 @@
 package file
 
-import "core:fmt"
-import "core:os"
-import "core:strings"
-
 // TODO:
 // - list files in directory
 //   - get relative path
 // - read file contents
 // - write file contents
-
-// -----------------------------------------
-
-Asset :: struct #all_or_none {
-	relpath: string,
-	size:    i64,
-	data:    []u8,
-}
-
-DirectoryEntry :: struct #all_or_none {
-	relpath: string,
-	size:    i64,
-}
-
-// -----------------------------------------
-
-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)
-	}
-
-	f, open_err := os.open(path, {.Read})
-	if open_err != nil {
-		fmt.eprintln("error: open failed:", open_err)
-		os.exit(1)
-	}
-	defer os.close(f)
-
-	result := [dynamic]DirectoryEntry{}
-	list_dir_impl(f, &result)
-	return result
-}
-
-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)
-	}
-
-	result := [dynamic]DirectoryEntry{}
-	list_dir_impl(f, &result)
-	return result
-}
-
-@(private)
-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)
-		os.exit(1)
-	}
-	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)
-		os.exit(1)
-	}
-	defer delete(working_dir)
-
-	for entry, i in entries {
-
-		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 {
-	f, open_err := os.open(path, {.Read})
-	if open_err != nil {
-		fmt.eprintln("error: open failed:", open_err)
-		os.exit(1)
-	}
-	defer os.close(f)
-
-	if !os.is_file(path) {
-		fmt.eprintln("error: path is not a file:", path)
-		os.exit(1)
-	}
-
-	path := path // shadow parameter
-	path = strings.clone(path)
-
-	size, size_err := os.file_size(f)
-	if size_err != nil {
-		fmt.eprintln("error: get file size failed:", size_err)
-		os.exit(1)
-	}
-
-	data := make([]u8, size)
-
-	n, read_err := os.read_full(f, data)
-	if read_err != nil {
-		delete(data)
-		fmt.eprintln(
-			"error: file read failed:",
-			read_err,
-			"got",
-			n,
-			"of",
-			size,
-			"bytes",
-		)
-		os.exit(1)
-	}
-
-	return data
-}
-
-get_asset_by_path :: proc(path: string) -> Asset {
-	data := read_by_path(path)
-	return Asset{relpath = path, size = cast(i64)len(data), data = data}
-}
diff --git a/src/file/list_dir.odin b/src/file/list_dir.odin
new file mode 100644
index 0000000..6039fbd
--- /dev/null
+++ b/src/file/list_dir.odin
@@ -0,0 +1,91 @@
+package file
+
+import "core:fmt"
+import "core:os"
+import "core:strings"
+
+// -----------------------------------------
+
+DirectoryEntry :: struct #all_or_none {
+	relpath: string,
+	size:    i64,
+}
+
+// -----------------------------------------
+
+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)
+	}
+
+	f, open_err := os.open(path, {.Read})
+	if open_err != nil {
+		fmt.eprintln("error: open failed:", open_err)
+		os.exit(1)
+	}
+	defer os.close(f)
+
+	result := [dynamic]DirectoryEntry{}
+	list_dir_impl(f, &result)
+	return result
+}
+
+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)
+	}
+
+	result := [dynamic]DirectoryEntry{}
+	list_dir_impl(f, &result)
+	return result
+}
+
+@(private)
+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)
+		os.exit(1)
+	}
+	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)
+		os.exit(1)
+	}
+	defer delete(working_dir)
+
+	for entry, i in entries {
+
+		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
+		}
+	}
+}
diff --git a/src/file/read_contents.odin b/src/file/read_contents.odin
new file mode 100644
index 0000000..9a0651d
--- /dev/null
+++ b/src/file/read_contents.odin
@@ -0,0 +1,62 @@
+package file
+
+import "core:fmt"
+import "core:os"
+import "core:strings"
+
+// -----------------------------------------
+
+Asset :: struct #all_or_none {
+	relpath: string,
+	size:    i64,
+	data:    []u8,
+}
+
+// -----------------------------------------
+
+read_by_path :: proc(path: string) -> []u8 {
+	f, open_err := os.open(path, {.Read})
+	if open_err != nil {
+		fmt.eprintln("error: open failed:", open_err)
+		os.exit(1)
+	}
+	defer os.close(f)
+
+	if !os.is_file(path) {
+		fmt.eprintln("error: path is not a file:", path)
+		os.exit(1)
+	}
+
+	path := path // shadow parameter
+	path = strings.clone(path)
+
+	size, size_err := os.file_size(f)
+	if size_err != nil {
+		fmt.eprintln("error: get file size failed:", size_err)
+		os.exit(1)
+	}
+
+	data := make([]u8, size)
+
+	n, read_err := os.read_full(f, data)
+	if read_err != nil {
+		delete(data)
+		fmt.eprintln(
+			"error: file read failed:",
+			read_err,
+			"got",
+			n,
+			"of",
+			size,
+			"bytes",
+		)
+		os.exit(1)
+	}
+
+	return data
+}
+
+get_asset_by_path :: proc(path: string) -> Asset {
+	data := read_by_path(path)
+	return Asset{relpath = path, size = cast(i64)len(data), data = data}
+}