js bundle wip

build/Cargo.toml

@@ -8,3 +8,5 @@ lightningcss = { version = "1.0.0-alpha.40", features = ["browserslist", "visito
 base64 = "0.21.0"
 urlencoding = "2.1.2"
 const-fnv1a-hash = "1.1.0"
+swc = "0.259.6"
+swc_common = { version = "0.30.5", features = ["tty-emitter"] }

build/src/lib.rs

@@ -1,6 +1,8 @@
+mod script;
 mod style;
 
 use const_fnv1a_hash::fnv1a_hash_str_32;
+pub use script::bundle_script;
 pub use style::bundle_style;
 
 #[macro_export]
@@ -9,8 +11,8 @@ macro_rules! save_asset {
         let val = $val;
         let out_dir = std::env::var("OUT_DIR").unwrap();
         std::fs::write(format!("{out_dir}/{}", $name), &val).expect("failed to write asset");
-        let hash = fnv1a_hash_str_32(&val);
-        std::fs::write(format!("{out_dir}/{}.hash", $name), format!("{:x}", hash))
+        let hash = demostf_build::hash(&val);
+        std::fs::write(format!("{out_dir}/{}.hash", $name), hash)
             .expect("failed to write asset hash");
     };
 }

build/src/script.rs

@@ -0,0 +1,40 @@
+use std::{path::Path, sync::Arc};
+use swc::config::Config;
+use swc::{self, config::Options, BoolConfig};
+use swc_common::{
+    errors::{ColorConfig, Handler},
+    SourceMap, GLOBALS,
+};
+
+pub fn bundle_script(script: &str) -> String {
+    let output = GLOBALS.set(&Default::default(), || {
+        let cm = Arc::<SourceMap>::default();
+        let handler = Arc::new(Handler::with_tty_emitter(
+            ColorConfig::Auto,
+            true,
+            false,
+            Some(cm.clone()),
+        ));
+        let compiler = swc::Compiler::new(cm.clone());
+
+        let fm = cm
+            // filepath that actually exists relative to the binary
+            .load_file(Path::new(script))
+            .expect("failed to load file");
+
+        compiler
+            .process_js_file(
+                fm,
+                &handler,
+                &Options {
+                    config: Config {
+                        minify: BoolConfig::new(Some(true)),
+                        ..Config::default()
+                    },
+                    ..Default::default()
+                },
+            )
+            .expect("failed to process file")
+    });
+    output.code
+}