feat: Reuse compiled regex

src/file.rs

@@ -2,16 +2,14 @@ use crete::cluster::Cluster;
 use crete::environment::configure_environment;
 use ipxe::IPXE_DIR;
 use minijinja::{Environment, context};
-use regex::Regex;
+use regex::regex;
 
 // TODO: Make this a proper async function
 pub fn get_file(
     filename: impl ToString,
     http_url: impl ToString,
 ) -> impl Future<Output = Option<(Vec<u8>, &'static str)>> {
-    // TODO: Make this a static that is initialized once
-    let re =
-        Regex::new(r"^talos/(?<cluster>.+)/(?<node>.+)\.ya?ml$").expect("regex should be valid");
+    let re = regex!(r"^talos/(?<cluster>.+)/(?<node>.+)\.ya?ml$");
 
     let filename: String = filename.to_string();
     let re = re.clone();