Added "tex_bin_dir" config option for specifying a custom TeX binarie…

…s folder.

manim/_config/utils.py

@@ -288,6 +288,7 @@ class MyScene(Scene):
         "save_pngs",
         "scene_names",
         "show_in_file_browser",
+        "tex_bin_dir",
         "tex_dir",
         "tex_template",
         "tex_template_file",
@@ -614,6 +615,7 @@ def digest_parser(self, parser: configparser.ConfigParser) -> ManimConfig:
             "background_color",
             "renderer",
             "window_position",
+            "tex_bin_dir",
         ]:
             setattr(self, key, parser["CLI"].get(key, fallback="", raw=True))
 
@@ -835,6 +837,10 @@ def digest_args(self, args: argparse.Namespace) -> ManimConfig:
         if getattr(args, "gui_location") is not None:
             self.gui_location = args.gui_location
 
+        # Handle --tex_bin_dir flag.
+        if hasattr(args, "tex_bin_dir") and getattr(args, "tex_bin_dir") is not None:
+            self.tex_bin_dir = args.tex_bin_dir
+
         return self
 
     def digest_file(self, filename: str | os.PathLike) -> ManimConfig:
@@ -1468,6 +1474,7 @@ def get_dir(self, key: str, **kwargs: str) -> Path:
             "input_file",
             "output_file",
             "partial_movie_dir",
+            "tex_bin_dir",
         ]
         if key not in dirs:
             raise KeyError(
@@ -1566,6 +1573,12 @@ def _set_dir(self, key: str, val: str | Path):
         doc="Output file name (-o).",
     )
 
+    tex_bin_dir = property(
+        lambda self: self._d["tex_bin_dir"],
+        lambda self, val: self._set_dir("tex_bin_dir", val),
+        doc="Path to custom TeX binaries folder.",
+    )
+
     scene_names = property(
         lambda self: self._d["scene_names"],
         lambda self, val: self._d.__setitem__("scene_names", val),

manim/cli/checkhealth/checks.py

@@ -4,6 +4,7 @@
 from __future__ import annotations
 
 import os
+import pathlib
 import shutil
 import subprocess
 from typing import Callable
@@ -154,7 +155,10 @@ def is_ffmpeg_working():
     ),
 )
 def is_latex_available():
-    path_to_latex = shutil.which("latex")
+    if config.get_dir("tex_bin_dir") is not None:
+        path_to_latex = config.get_dir("tex_bin_dir") / "latex.exe"
+    else:
+        path_to_latex = shutil.which("latex")
     return path_to_latex is not None and os.access(path_to_latex, os.X_OK)
 
 
@@ -169,5 +173,8 @@ def is_latex_available():
     skip_on_failed=[is_latex_available],
 )
 def is_dvisvgm_available():
-    path_to_dvisvgm = shutil.which("dvisvgm")
+    if config.get_dir("tex_bin_dir") is not None:
+        path_to_dvisvgm = config.get_dir("tex_bin_dir") / "dvisvgm.exe"
+    else:
+        path_to_dvisvgm = shutil.which("dvisvgm")
     return path_to_dvisvgm is not None and os.access(path_to_dvisvgm, os.X_OK)

manim/utils/tex_file_writing.py

@@ -123,9 +123,17 @@ def tex_compilation_command(
     :class:`str`
         Compilation command according to given parameters
     """
+    # If the tex_bin_dir is set, prefix all tex executables with it
+    # Otherwise, default to using the ones on PATH
+    tex_bin_prefix = ""
+    if config.get_dir("tex_bin_dir") is not None:
+        tex_bin_prefix = config.get_dir("tex_bin_dir")
+
     if tex_compiler in {"latex", "pdflatex", "luatex", "lualatex"}:
         commands = [
-            tex_compiler,
+            tex_compiler
+            if tex_bin_prefix == ""
+            else (tex_bin_prefix / tex_compiler).as_posix(),
             "-interaction=batchmode",
             f'-output-format="{output_format[1:]}"',
             "-halt-on-error",
@@ -142,7 +150,9 @@ def tex_compilation_command(
         else:
             raise ValueError("xelatex output is either pdf or xdv")
         commands = [
-            "xelatex",
+            "xelatex"
+            if tex_bin_prefix == ""
+            else (tex_bin_prefix / "xelatex").as_posix(),
             outflag,
             "-interaction=batchmode",
             "-halt-on-error",
@@ -223,10 +233,18 @@ def convert_to_svg(dvi_file: Path, extension: str, page: int = 1):
     :class:`Path`
         Path to generated SVG file.
     """
+    # If the tex_bin_dir is set, prefix all tex executables with it
+    # Otherwise, default to using the ones on PATH
+    tex_bin_prefix = ""
+    if config.get_dir("tex_bin_dir") is not None:
+        tex_bin_prefix = config.get_dir("tex_bin_dir")
+
     result = dvi_file.with_suffix(".svg")
     if not result.exists():
         commands = [
-            "dvisvgm",
+            "dvisvgm"
+            if tex_bin_prefix == ""
+            else (tex_bin_prefix / "dvisvgm").as_posix(),
             "--pdf" if extension == ".pdf" else "",
             "-p " + str(page),
             f'"{dvi_file.as_posix()}"',