Set DIOXUS_PUBLIC_PATH to configured value

src/server/main.rs

@@ -22,6 +22,14 @@ pub fn main() -> Result<std::convert::Infallible> {
         .map_err(|e| Error::message_here(e.to_string()))
         .err_context("Failed to load config")?;
 
+    // Dioxus doesn't expose a way to configure the public path other than this environment
+    // variable, and also doesn't provide a way to read what the public path is. As a workaround we
+    // expose a config option and set this variable that Dioxus expects.
+    // SAFETY: "This function is safe to call in a single-threaded program."
+    unsafe {
+        std::env::set_var("DIOXUS_PUBLIC_PATH", config.server.public_path.clone());
+    }
+
     // `Ok(...?)` is because `dioxus::serve` expects an `anyhow::Result`
     dioxus::serve(move || {
         let config = config.clone();