From 85a955a79634bcf41159ce431d2092e668c65f37 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 13 Jun 2023 17:09:38 +0530
Subject: [PATCH] Move shader loading code into its own module

---
 kitty/borders.py |  2 +-
 kitty/shaders.py | 34 ++++++++++++++++++++++++++++++++++
 kitty/utils.py   | 28 ----------------------------
 kitty/window.py  |  2 +-
 4 files changed, 36 insertions(+), 30 deletions(-)
 create mode 100644 kitty/shaders.py

diff --git a/kitty/borders.py b/kitty/borders.py
index 1a603a570..9c3d9578d 100644
--- a/kitty/borders.py
+++ b/kitty/borders.py
@@ -5,8 +5,8 @@ from enum import IntFlag
 from typing import Iterable, NamedTuple, Sequence
 
 from .fast_data_types import BORDERS_PROGRAM, add_borders_rect, compile_program, get_options, init_borders_program, os_window_has_background_image
+from .shaders import load_shaders
 from .typing import LayoutType
-from .utils import load_shaders
 from .window_list import WindowGroup, WindowList
 
 
diff --git a/kitty/shaders.py b/kitty/shaders.py
new file mode 100644
index 000000000..65d552841
--- /dev/null
+++ b/kitty/shaders.py
@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+# License: GPLv3 Copyright: 2023, Kovid Goyal <kovid at kovidgoyal.net>
+
+import re
+from typing import Iterator, Tuple
+
+from .constants import read_kitty_resource
+from .fast_data_types import GLSL_VERSION
+
+
+def load_shaders(name: str, vertex_name: str = '', fragment_name: str = '') -> Tuple[Tuple[str, ...], Tuple[str, ...]]:
+    pat = re.compile(r'^#pragma\s+kitty_include_shader\s+<(.+?)>', re.MULTILINE)
+
+    def load_sources(name: str, level: int = 0) -> Iterator[str]:
+        if level == 0:
+            yield f'#version {GLSL_VERSION}\n'
+        src = read_kitty_resource(name).decode('utf-8')
+        pos = 0
+        for m in pat.finditer(src):
+            prefix = src[pos:m.start()]
+            if prefix:
+                yield prefix
+            iname = m.group(1)
+            yield from load_sources(iname, level+1)
+            pos = m.start()
+        if pos < len(src):
+            yield src[pos:]
+
+    def load(which: str, lname: str = '') -> Tuple[str, ...]:
+        lname = lname or name
+        main = f'{lname}_{which}.glsl'
+        return tuple(load_sources(main))
+
+    return load('vertex', vertex_name), load('fragment', fragment_name)
diff --git a/kitty/utils.py b/kitty/utils.py
index c7aba3c04..fd02457cd 100644
--- a/kitty/utils.py
+++ b/kitty/utils.py
@@ -20,7 +20,6 @@ from .constants import (
     config_dir,
     is_macos,
     is_wayland,
-    read_kitty_resource,
     runtime_dir,
     shell_path,
     ssh_control_master_template,
@@ -104,33 +103,6 @@ def platform_window_id(os_window_id: int) -> Optional[int]:
     return None
 
 
-def load_shaders(name: str, vertex_name: str = '', fragment_name: str = '') -> Tuple[Tuple[str, ...], Tuple[str, ...]]:
-    from .fast_data_types import GLSL_VERSION
-    pat = re.compile(r'^#pragma\s+kitty_include_shader\s+<(.+?)>', re.MULTILINE)
-
-    def load_sources(name: str, level: int = 0) -> Iterator[str]:
-        if level == 0:
-            yield f'#version {GLSL_VERSION}\n'
-        src = read_kitty_resource(name).decode('utf-8')
-        pos = 0
-        for m in pat.finditer(src):
-            prefix = src[pos:m.start()]
-            if prefix:
-                yield prefix
-            iname = m.group(1)
-            yield from load_sources(iname, level+1)
-            pos = m.start()
-        if pos < len(src):
-            yield src[pos:]
-
-    def load(which: str, lname: str = '') -> Tuple[str, ...]:
-        lname = lname or name
-        main = f'{lname}_{which}.glsl'
-        return tuple(load_sources(main))
-
-    return load('vertex', vertex_name), load('fragment', fragment_name)
-
-
 def safe_print(*a: Any, **k: Any) -> None:
     with suppress(Exception):
         print(*a, **k)
diff --git a/kitty/window.py b/kitty/window.py
index 9c943efba..e062bd4af 100644
--- a/kitty/window.py
+++ b/kitty/window.py
@@ -107,13 +107,13 @@ from .notify import (
 )
 from .options.types import Options
 from .rgb import to_color
+from .shaders import load_shaders
 from .terminfo import get_capabilities
 from .types import MouseEvent, OverlayType, WindowGeometry, ac, run_once
 from .typing import BossType, ChildType, EdgeLiteral, TabType, TypedDict
 from .utils import (
     docs_url,
     kitty_ansi_sanitizer_pat,
-    load_shaders,
     log_error,
     open_cmd,
     open_url,