feat(pack): add request-driven lazy compilation

Author: fireairforce

.github/workflows/pack-integration.yml

@@ -64,6 +64,7 @@ jobs:
           # Build packages
           npm run build --workspace @utoo/pack-shared
           npm run build:local --workspace @utoo/pack
+          npm exec --workspace @utoo/pack -- vitest run src/__test__/serveLazyCompilation.test.ts
           npm run build --workspace @utoo/pack-cli
 
           # Verify examples

Cargo.lock

@@ -718,7 +718,8 @@ pub async fn get_client_chunking_context(
         let dev_server = config.dev_server().await?;
         if matches!(runtime_type, RuntimeType::Development)
             && dev_server.hot.unwrap_or_default()
-            && dev_server.dynamic_hmr_chunk_lists.unwrap_or_default()
+            && (dev_server.dynamic_hmr_chunk_lists.unwrap_or_default()
+                || dev_server.lazy_compilation.unwrap_or_default())
         {
             builder = builder.dynamic_hmr_chunk_lists();
         }

crates/pack-core/src/client/context.rs

@@ -136,6 +136,7 @@ pub struct Entries(Vec<EntryOptions>);
 pub struct DevServer {
     pub hot: Option<bool>,
     pub dynamic_hmr_chunk_lists: Option<bool>,
+    pub lazy_compilation: Option<bool>,
 }
 
 /// Provider configuration item - can be a module name string or [module, export] tuple.

crates/pack-core/src/config.rs

@@ -57,6 +57,8 @@ serde_json   = { workspace = true }
 vergen-gitcl = { version = "1.0.8", features = ["cargo"] }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
+hyper                             = { version = "0.14", features = ["full"] }
+mime_guess                        = "2.0.4"
 pack-api                          = { workspace = true, features = ["process_pool"] }
 pack-core                         = { workspace = true, features = ["process_pool"] }
 tokio                             = { workspace = true, features = ["full"] }
@@ -68,6 +70,7 @@ turbo-tasks-malloc                = { workspace = true, default-features = false
 turbo-unix-path                   = { workspace = true }
 turbopack                         = { workspace = true }
 turbopack-core                    = { workspace = true }
+turbopack-dev-server              = { workspace = true }
 turbopack-ecmascript-hmr-protocol = { workspace = true }
 turbopack-ecmascript-plugins      = { workspace = true, optional = true }
 turbopack-node                    = { workspace = true, default-features = false, features = ["worker_pool_napi"] }