feat(cli/convert): add HTML zip output (#472)

Closes #437

CHANGELOG.md

@@ -19,6 +19,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added support for `disable_caching` and `flush_cache` options from Manim, and
   also the possibility to configure them through class options.
   [#452](https://github.com/jeertmans/manim-slides/pull/452)
+- Added `--to=zip` convert format to generate an archive with HTML output
+  and asset files.
+  [#470](https://github.com/jeertmans/manim-slides/pull/470)
 
 (unreleased-chore)=
 ### Chore

manim_slides/convert.py

@@ -1,6 +1,7 @@
 import mimetypes
 import os
 import platform
+import shutil
 import subprocess
 import tempfile
 import webbrowser
@@ -115,9 +116,9 @@ class Converter(BaseModel):  # type: ignore
         """
         return ""
 
-    def open(self, file: Path) -> Any:
+    def open(self, file: Path) -> None:
         """Open a file, generated with converter, using appropriate application."""
-        raise NotImplementedError
+        open_with_default(file)
 
     @classmethod
     def from_string(cls, s: str) -> type["Converter"]:
@@ -126,6 +127,7 @@ class Converter(BaseModel):  # type: ignore
             "html": RevealJS,
             "pdf": PDF,
             "pptx": PowerPoint,
+            "zip": HtmlZip,
         }[s]
 
 
@@ -380,8 +382,8 @@ class RevealJS(Converter):
 
         return resources.files(templates).joinpath("revealjs.html").read_text()
 
-    def open(self, file: Path) -> bool:
-        return webbrowser.open(file.absolute().as_uri())
+    def open(self, file: Path) -> None:
+        webbrowser.open(file.absolute().as_uri())
 
     def convert_to(self, dest: Path) -> None:
         """
@@ -452,6 +454,24 @@ class RevealJS(Converter):
             f.write(content)
 
 
+class HtmlZip(RevealJS):
+    def open(self, file: Path) -> None:
+        super(RevealJS, self).open(file)  # Override opening with web browser
+
+    def convert_to(self, dest: Path) -> None:
+        """
+        Convert this configuration into a zipped RevealJS HTML presentation, saved to
+        DEST.
+        """
+        with tempfile.TemporaryDirectory() as directory_name:
+            directory = Path(directory_name)
+
+            html_file = directory / dest.with_suffix(".html").name
+
+            super().convert_to(html_file)
+            shutil.make_archive(str(dest.with_suffix("")), "zip", directory_name)
+
+
 class FrameIndex(str, Enum):
     first = "first"
     last = "last"
@@ -462,9 +482,6 @@ class PDF(Converter):
     resolution: PositiveFloat = 100.0
     model_config = ConfigDict(use_enum_values=True, extra="forbid")
 
-    def open(self, file: Path) -> None:
-        return open_with_default(file)
-
     def convert_to(self, dest: Path) -> None:
         """Convert this configuration into a PDF presentation, saved to DEST."""
         images = []
@@ -499,9 +516,6 @@ class PowerPoint(Converter):
     poster_frame_image: Optional[FilePath] = None
     model_config = ConfigDict(use_enum_values=True, extra="forbid")
 
-    def open(self, file: Path) -> None:
-        return open_with_default(file)
-
     def convert_to(self, dest: Path) -> None:
         """Convert this configuration into a PowerPoint presentation, saved to DEST."""
         prs = pptx.Presentation()
@@ -640,7 +654,7 @@ def show_template_option(function: Callable[..., Any]) -> Callable[..., Any]:
 @click.argument("dest", type=click.Path(dir_okay=False, path_type=Path))
 @click.option(
     "--to",
-    type=click.Choice(["auto", "html", "pdf", "pptx"], case_sensitive=False),
+    type=click.Choice(["auto", "html", "zip", "pdf", "pptx"], case_sensitive=False),
     metavar="FORMAT",
     default="auto",
     show_default=True,

tests/test_convert.py

@@ -1,3 +1,4 @@
+import shutil
 from enum import EnumMeta
 from pathlib import Path
 
@@ -17,6 +18,7 @@ from manim_slides.convert import (
     ControlsLayout,
     Converter,
     Display,
+    HtmlZip,
     JsBool,
     JsFalse,
     JsNull,
@@ -138,7 +140,8 @@ def test_unquoted_enum(enum_type: EnumMeta) -> None:
 
 class TestConverter:
     @pytest.mark.parametrize(
-        ("name", "converter"), [("html", RevealJS), ("pdf", PDF), ("pptx", PowerPoint)]
+        ("name", "converter"),
+        [("html", RevealJS), ("pdf", PDF), ("pptx", PowerPoint), ("zip", HtmlZip)],
     )
     def test_from_string(self, name: str, converter: type) -> None:
         assert Converter.from_string(name) == converter
@@ -150,9 +153,26 @@ class TestConverter:
         RevealJS(presentation_configs=[presentation_config]).convert_to(out_file)
         assert out_file.exists()
         assert Path(tmp_path / "slides_assets").is_dir()
-        file_contents = Path(out_file).read_text()
+        file_contents = out_file.read_text()
         assert "manim" in file_contents.casefold()
 
+    def test_htmlzip_converter(
+        self, tmp_path: Path, presentation_config: PresentationConfig
+    ) -> None:
+        archive = tmp_path / "got.zip"
+        expected = tmp_path / "expected.html"
+        got = tmp_path / "got.html"
+
+        HtmlZip(presentation_configs=[presentation_config]).convert_to(archive)
+        RevealJS(presentation_configs=[presentation_config]).convert_to(expected)
+
+        shutil.unpack_archive(str(archive))
+
+        assert got.exists()
+        assert expected.exists()
+
+        assert got.read_text() == expected.read_text()
+
     @pytest.mark.parametrize("num_presentation_configs", (1, 2))
     def test_revealjs_multiple_scenes_converter(
         self,