fix: caching!

.dockerignore

@@ -1,5 +1,6 @@
 *
 
+!/.git/
 !/src/
 !/build.rs
 !/Cargo.toml

Cargo.toml

@@ -34,6 +34,7 @@ serde_yaml = "0.9"
 thiserror = "1"
 time = { version = "0.3", features = ["macros", "serde-human-readable"] }
 tokio = { version = "1", features = ["macros", "rt-multi-thread"] }
+tower = { version = "0.4", features = ["util"] }
 tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter", "json"] }
 tree-sitter = "0.20"

build.rs

@@ -1,6 +1,13 @@
 use std::{env, error::Error, path::PathBuf, process::Command};
 
 fn main() -> Result<(), Box<dyn Error>> {
+    build_tailwind()?;
+    set_git_hash()?;
+
+    Ok(())
+}
+
+fn build_tailwind() -> Result<(), Box<dyn Error>> {
     let manifest_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR")?);
 
     let tailwind_config_file = manifest_dir.join("tailwind.config.js");
@@ -39,3 +46,16 @@ fn main() -> Result<(), Box<dyn Error>> {
 
     Ok(())
 }
+
+fn set_git_hash() -> Result<(), Box<dyn Error>> {
+    let git_out = Command::new("git")
+        .args(["rev-parse", "HEAD"])
+        .output()?
+        .stdout;
+
+    let git_hash = String::from_utf8(git_out)?;
+
+    println!("cargo:rustc-env=GIT_HASH={git_hash}");
+
+    Ok(())
+}

src/layout/mod.rs

@@ -65,7 +65,7 @@ pub fn document(path: Option<&str>, content: Markup) -> Markup {
         html lang="en" {
             head {
                 (seo(path))
-                link rel="stylesheet" href="/static/styles.css";
+                link rel="stylesheet" href=(concat!("/static/styles.css?git-hash=", env!("GIT_HASH")));
             }
 
             body.min-h-screen."px-[10%]"."lg:px-[25%]".flex.flex-col.items-center.font-mono."bg-stone-100"."dark:bg-stone-900"."dark:text-stone-300"."text-stone-700" {

src/static.rs

@@ -1,8 +1,13 @@
-use std::{ffi::OsStr, path::PathBuf};
+use std::{ffi::OsStr, path::PathBuf, time::Duration};
 
-use axum::{extract::Path, headers::ContentType, Router, TypedHeader};
+use axum::{
+    extract::Path,
+    headers::{CacheControl, ContentType},
+    Router, TypedHeader,
+};
 use axum_extra::response::Css;
 use include_dir::{include_dir, Dir};
+use tower::ServiceBuilder;
 use tracing::instrument;
 
 use crate::{App, Error};
@@ -13,6 +18,13 @@ pub fn router() -> Router<App> {
         .route("/LICENSE.txt", axum::routing::get(license))
         .route("/styles.css", axum::routing::get(styles))
         .route("/fonts/:font", axum::routing::get(fonts))
+        .layer(ServiceBuilder::new().map_response(|res| {
+            let cc = CacheControl::new()
+                .with_max_age(Duration::from_secs(60 * 60 * 24 * 365))
+                .with_immutable();
+
+            (TypedHeader(cc), res)
+        }))
 }
 
 macro_rules! static_path {