Autoreload v2 (#2268)

* Add autoreload

* Typo correction

* Add --autoreload to configuration docts

Co-Authored-By: Splines <[email protected]>

---------

Co-authored-by: Splines <[email protected]>

Author: 3b1b

docs/source/getting_started/configuration.rst

@@ -63,6 +63,7 @@ flag                                                       abbr   function
 ``--video_dir VIDEO_DIR``                                         Directory to write video
 ``--config_file CONFIG_FILE``                                     Path to the custom configuration file
 ``--log-level LOG_LEVEL``                                         Level of messages to Display, can be DEBUG / INFO / WARNING / ERROR / CRITICAL
+``--autoreload``                                                  Automatically reload Python modules to pick up code changes across different files
 ========================================================== ====== =====================================================================================================================================================================================================
 
 custom_config

manimlib/config.py

@@ -45,6 +45,7 @@ def initialize_manim_config() -> Dict:
     update_file_writer_config(config, args)
     update_scene_config(config, args)
     update_run_config(config, args)
+    update_embed_config(config, args)
 
     return Dict(config)
 
@@ -209,6 +210,12 @@ def parse_cli():
             "--log-level",
             help="Level of messages to Display, can be DEBUG / INFO / WARNING / ERROR / CRITICAL"
         )
+        parser.add_argument(
+            "--autoreload",
+            action="store_true",
+            help="Automatically reload Python modules to pick up code changes " +
+                 "across different files",
+        )
         args = parser.parse_args()
         args.write_file = any([args.write_file, args.open, args.finder])
         return args
@@ -311,6 +318,11 @@ def update_run_config(config: dict, args: Namespace):
     )
 
 
+def update_embed_config(config: dict, args: Namespace):
+    if args.autoreload:
+        config["embed"]["autoreload"] = True
+
+
 # Helpers for the functions above
 
 

manimlib/default_config.yml

@@ -83,6 +83,7 @@ text:
   alignment: "LEFT"
 embed:
   exception_mode: "Verbose"
+  autoreload: False
 resolution_options:
   # When the user passes in -l, -m, --hd or --uhd, these are the corresponding
   # resolutions

manimlib/scene/scene_embed.py

@@ -29,6 +29,8 @@ def __init__(self, scene: Scene):
         self.enable_gui()
         self.ensure_frame_update_post_cell()
         self.ensure_flash_on_error()
+        if manim_config.embed.autoreload:
+            self.auto_reload()
 
     def launch(self):
         self.shell()
@@ -139,6 +141,11 @@ def reload_scene(self, embed_line: int | None = None) -> None:
         print("Reloading...")
         self.shell.run_line_magic("exit_raise", "")
 
+    def auto_reload(self):
+        """Enables IPython autoreload for automatic reloading of modules."""
+        self.shell.magic("load_ext autoreload")
+        self.shell.magic("autoreload all")
+
     def checkpoint_paste(
         self,
         skip: bool = False,