readd default_config and improve config guide

.gitignore

@@ -147,5 +147,4 @@ dmypy.json
 
 # For manim
 /videos
-/custom_config.yml
-/manimlib/default_config.yml
+/custom_config.yml

manimlib/config.py

@@ -160,10 +160,6 @@ def get_custom_config():
     filename = "custom_config.yml"
     global_defaults_file = os.path.join(get_manim_dir(), "manimlib", "default_config.yml")
 
-    if not (os.path.exists(global_defaults_file) or os.path.exists(filename)):
-        print("There is no configuration file detected. Initial configuration:\n")
-        init_customization()
-
     if os.path.exists(global_defaults_file):
         with open(global_defaults_file, "r") as file:
             config = yaml.safe_load(file)
@@ -188,6 +184,17 @@ def get_custom_config():
 
 
 def get_configuration(args):
+    local_config_file = "custom_config.yml"
+    global_defaults_file = os.path.join(get_manim_dir(), "manimlib", "default_config.yml")
+    if not (os.path.exists(global_defaults_file) or os.path.exists(local_config_file)):
+        print("There is no configuration file detected. Initial configuration:\n")
+        init_customization()
+    elif not os.path.exists(local_config_file):
+        print(f"""Warning: Using the default configuration file, which you can modify in {global_defaults_file}
+        If you want to create a local configuration file, you can create a file named {local_config_file}, or run manimgl --config
+        """)
+        # print(f"Warning: Using the default configuration file, which you can modify in {global_defaults_file}")
+        # print(f"         If you want to create a local configuration file, you can create a file named {filename}")
     custom_config = get_custom_config()
 
     write_file = any([args.write_file, args.open, args.finder])

manimlib/default_config.yml

@@ -0,0 +1,56 @@
+directories:
+  # Set this to true if you want the path to video files
+  # to match the directory structure of the path to the
+  # sourcecode generating that video
+  mirror_module_path: False
+  # Where should manim output video and image files?
+  output: ""
+  # If you want to use images, manim will look to these folders to find them
+  raster_images: ""
+  vector_images: ""
+  # If you want to use sounds, manim will look here to find it.
+  sounds: ""
+  # Manim often generates tex_files or other kinds of serialized data
+  # to keep from having to generate the same thing too many times.  By
+  # default, these will be stored at tempfile.gettempdir(), e.g. this might
+  # return whatever is at to the TMPDIR environment variable.  If you want to
+  # specify them elsewhere,
+  temporary_storage: ""
+tex:
+  executable: "latex"
+  template_file: "tex_template.tex" 
+  intermediate_filetype: "dvi"
+  text_to_replace: "[tex_expression]"
+  # For ctex, use the following configuration
+  # executable: "xelatex -no-pdf"
+  # template_file: "ctex_template.tex"
+  # intermediate_filetype: "xdv"
+universal_import_line: "from manimlib.imports import *"
+style:
+  font: "Consolas"
+  background_color: "#333333"
+# Set the position of preview window, you can use directions, e.g. UL/DR/OL/OO/...
+# also, you can also specify the position(pixel) of the upper left corner of 
+# the window on the monitor, e.g. "960,540"
+window_position: UR
+# If break_into_partial_movies is set to True, then many small
+# files will be written corresponding to each Scene.play and
+# Scene.wait call, and these files will then be combined
+# to form the full scene.  Sometimes video-editing is made
+# easier when working with the broken up scene, which
+# effectively has cuts at all the places you might want.
+break_into_partial_movies: False
+camera_qualities:
+  low:
+    resolution: "854x480"
+    frame_rate: 15
+  medium:
+    resolution: "1280x720"
+    frame_rate: 30
+  high:
+    resolution: "1920x1080"
+    frame_rate: 30
+  ultra_high:
+    resolution: "3840x2160"
+    frame_rate: 60
+  default_quality: "high"