feat: Reuse compiled regex

ipxe/build.rs

@@ -23,7 +23,6 @@ fn main() {
                 .get()
                 .to_string(),
         ])
-        .arg("DOWNLOAD_PROTO_HTTP=1")
         .arg(format!(
             "EMBED={}",
             manifest_dir

src/error.rs

@@ -0,0 +1,10 @@
+use crete::tftp::ServerError;
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum Error {
+    #[error("No clusters where found")]
+    NoClustersFound,
+    #[error("Server error: {0}")]
+    ServerError(#[from] ServerError),
+}

src/file.rs

@@ -0,0 +1,58 @@
+use crete::cluster::Cluster;
+use crete::environment::configure_environment;
+use ipxe::IPXE_DIR;
+use minijinja::{Environment, context};
+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)>> {
+    let re = regex!(r"^talos/(?<cluster>.+)/(?<node>.+)\.ya?ml$");
+
+    let filename: String = filename.to_string();
+    let re = re.clone();
+
+    async move {
+        const IPXE_PATTERN: &str = "ipxe/";
+        if filename == format!("{IPXE_PATTERN}boot.ipxe") {
+            let mut env = Environment::new();
+
+            configure_environment(&mut env);
+
+            let template = env
+                .template_from_str(include_str!("./boot.ipxe"))
+                .expect("Template should be valid");
+
+            let clusters = Cluster::get_all().await;
+            let content = template
+                .render(context! {
+                    clusters => clusters.values().collect::<Vec<_>>(),
+                    httpUrl => http_url.to_string()
+                })
+                .unwrap();
+
+            Some((content.into(), "text/plain; charset=utf-8"))
+        } else if let Some(filename) = filename.strip_prefix(IPXE_PATTERN) {
+            Some((
+                IPXE_DIR.get_file(filename)?.contents().to_owned(),
+                "application/octet-stream",
+            ))
+        } else if let Some(caps) = re.captures(&filename) {
+            let cluster = &caps["cluster"];
+            let node = &caps["node"];
+
+            let clusters = Cluster::get_all().await;
+            let cluster = clusters.get(cluster)?;
+
+            let node = cluster.node(node)?;
+
+            let config = node.config(cluster).await;
+
+            Some((config.into(), "application/yaml; charset=utf-8"))
+        } else {
+            None
+        }
+    }
+}

src/http.rs

@@ -0,0 +1,46 @@
+use std::path::PathBuf;
+
+use axum::debug_handler;
+use axum::extract::Request;
+use axum::http::Uri;
+use axum::response::IntoResponse;
+use reqwest::{StatusCode, header};
+
+use crate::file::get_file;
+
+#[debug_handler]
+pub async fn handler(req: Request) -> impl IntoResponse {
+    let uri: Uri = req
+        .headers()
+        .iter()
+        .find(|(name, _)| header::HOST.eq(name))
+        .map(|(_, value)| value)
+        .expect("Host header should exist")
+        .to_str()
+        .expect("Header value should be valid ASCII")
+        .parse()
+        .expect("Host should be valid Uri");
+
+    let host = uri.host().expect("Uri should have host");
+    let port = uri.port().map(|port| port.as_u16()).unwrap_or(80);
+
+    let Some(path) = req.uri().path().strip_prefix("/") else {
+        return StatusCode::BAD_REQUEST.into_response();
+    };
+
+    let Some((file, content_type)) = get_file(path, format!("http://{host}:{port}")).await else {
+        return StatusCode::NOT_FOUND.into_response();
+    };
+
+    let path = PathBuf::from(path);
+    let filename = path.file_name().unwrap();
+    let filename = filename.to_str().unwrap();
+
+    let content_type = [(header::CONTENT_TYPE, content_type)];
+    let disposition = [(
+        header::CONTENT_DISPOSITION,
+        format!("inline; filename=\"{filename}\""),
+    )];
+
+    (content_type, disposition, file).into_response()
+}

src/main.rs

@@ -1,38 +1,27 @@
 mod cli;
+mod error;
+mod file;
+mod http;
 
 use std::net::SocketAddr;
-use std::path::PathBuf;
 use std::pin::pin;
 
-use axum::extract::Request;
-use axum::http::Uri;
-use axum::response::IntoResponse;
+use axum::Router;
 use axum::routing::get;
-use axum::{Router, debug_handler};
 use clap::{CommandFactory, Parser};
 use clap_complete::{Shell, generate as generate_complete};
 use crete::cluster::Cluster;
-use crete::environment::{PathEnvironment, configure_environment};
+use crete::environment::PathEnvironment;
 use crete::talosconfig::{get_current_context, set_context};
-use crete::tftp::ServerError;
 use crete::{get_configs_path, get_repo_path, set_repo_path, tftp};
 use futures::StreamExt;
 use futures::future::join_all;
-use ipxe::IPXE_DIR;
-use minijinja::{Environment, context};
-use regex::Regex;
-use reqwest::{StatusCode, header};
-use thiserror::Error;
+use minijinja::context;
 
 use crate::cli::{Cli, Commands, GlobalOpts};
-
-#[derive(Debug, Error)]
-enum Error {
-    #[error("No clusters where found")]
-    NoClustersFound,
-    #[error("Server error: {0}")]
-    ServerError(#[from] ServerError),
-}
+use crate::error::Error;
+use crate::file::get_file;
+use crate::http::handler;
 
 async fn generate(opts: &GlobalOpts) -> Result<(), Error> {
     let clusters = Cluster::get_all().await;
@@ -101,99 +90,6 @@ async fn generate(opts: &GlobalOpts) -> Result<(), Error> {
     Ok(())
 }
 
-#[debug_handler]
-async fn handler(req: Request) -> impl IntoResponse {
-    println!("{req:?}");
-    let uri: Uri = req
-        .headers()
-        .iter()
-        .find(|(name, _)| header::HOST.eq(name))
-        .map(|(_, value)| value)
-        .expect("Host header should exist")
-        .to_str()
-        .expect("Header value should be valid ASCII")
-        .parse()
-        .expect("Host should be valid Uri");
-
-    let host = uri.host().expect("Uri should have host");
-    let port = uri.port().map(|port| port.as_u16()).unwrap_or(80);
-
-    let Some(path) = req.uri().path().strip_prefix("/") else {
-        return StatusCode::BAD_REQUEST.into_response();
-    };
-
-    let Some((file, content_type)) = get_file(path, format!("http://{host}:{port}")).await else {
-        return StatusCode::NOT_FOUND.into_response();
-    };
-
-    let path = PathBuf::from(path);
-    let filename = path.file_name().unwrap();
-    let filename = filename.to_str().unwrap();
-
-    let content_type = [(header::CONTENT_TYPE, content_type)];
-    let disposition = [(
-        header::CONTENT_DISPOSITION,
-        format!("inline; filename=\"{filename}\""),
-    )];
-
-    (content_type, disposition, file).into_response()
-}
-
-// TODO: Make this a proper async function
-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 filename: String = filename.to_string();
-    let re = re.clone();
-
-    async move {
-        const IPXE_PATTERN: &str = "ipxe/";
-        if filename == format!("{IPXE_PATTERN}boot.ipxe") {
-            let mut env = Environment::new();
-
-            configure_environment(&mut env);
-
-            let template = env
-                .template_from_str(include_str!("./boot.ipxe"))
-                .expect("Template should be valid");
-
-            let clusters = Cluster::get_all().await;
-            let content = template
-                .render(context! {
-                    clusters => clusters.values().collect::<Vec<_>>(),
-                    httpUrl => http_url.to_string()
-                })
-                .unwrap();
-
-            Some((content.into(), "text/plain; charset=utf-8"))
-        } else if let Some(filename) = filename.strip_prefix(IPXE_PATTERN) {
-            Some((
-                IPXE_DIR.get_file(filename)?.contents().to_owned(),
-                "application/octet-stream",
-            ))
-        } else if let Some(caps) = re.captures(&filename) {
-            let cluster = &caps["cluster"];
-            let node = &caps["node"];
-
-            let clusters = Cluster::get_all().await;
-            let cluster = clusters.get(cluster)?;
-
-            let node = cluster.node(node)?;
-
-            let config = node.config(cluster).await;
-
-            Some((config.into(), "application/yaml; charset=utf-8"))
-        } else {
-            None
-        }
-    }
-}
-
 #[tokio::main]
 async fn main() -> Result<(), Error> {
     let cli = Cli::parse();