Serve empty directories, page cache

src/render.rs

@@ -0,0 +1,44 @@
+use linemd::Parser;
+
+pub struct Renderer {
+	hl_registry: giallo::Registry,
+}
+
+impl Renderer {
+	pub fn new() -> Self {
+		let mut hl_registry = giallo::Registry::builtin().unwrap();
+		hl_registry.link_grammars();
+		Self { hl_registry }
+	}
+	pub fn render(&self, filetype: &str, content: &[u8], pretty: bool) -> String {
+		let Ok(content) = str::from_utf8(content) else {
+			return String::from("Cannot render file as it is not valid UTF-8.");
+		};
+		if pretty && filetype == "md" {
+			linemd::render_as_html(content.parse_md())
+		} else {
+			let hl_options = giallo::HighlightOptions::new(
+				filetype,
+				giallo::ThemeVariant::Single("catppuccin-frappe"),
+			);
+			let highlighted = self
+				.hl_registry
+				.highlight(content, &hl_options)
+				.unwrap_or_else(|_e| {
+					// If extension is unknown
+					let hl_options = giallo::HighlightOptions::new(
+						giallo::PLAIN_GRAMMAR_NAME,
+						giallo::ThemeVariant::Single("catppuccin-frappe"),
+					);
+					self.hl_registry.highlight(content, &hl_options).unwrap()
+				});
+			giallo::HtmlRenderer::default().render(
+				&highlighted,
+				&giallo::RenderOptions {
+					show_line_numbers: true,
+					..Default::default()
+				},
+			)
+		}
+	}
+}