static_files: embed files in-binary

Signed-off-by: Gunwant Jain <mail@wantguns.dev>

src/routes/static_files.rs

@@ -1,10 +1,21 @@
-use rocket::fs::NamedFile;
-use rocket::response::status::NotFound;
-use std::path::{Path, PathBuf};
+use rocket::http::ContentType;
+use rust_embed::RustEmbed;
+use std::{borrow::Cow, ffi::OsStr, path::PathBuf};
+
+#[derive(RustEmbed)]
+#[folder = "static/"]
+struct Static;
 
 #[get("/static/<file..>")]
-pub async fn static_files(file: PathBuf) -> Result<NamedFile, NotFound<String>> {
-    NamedFile::open(Path::new("static/").join(file))
-        .await
-        .map_err(|e| NotFound(e.to_string()))
+pub fn static_files(file: PathBuf) -> Option<(ContentType, Cow<'static, [u8]>)> {
+    let filename = file.display().to_string();
+    let asset = Static::get(&filename)?;
+
+    let content_type = file
+        .extension()
+        .and_then(OsStr::to_str)
+        .and_then(ContentType::from_extension)
+        .unwrap_or(ContentType::Bytes);
+
+    Some((content_type, asset.data))
 }