feat: materialize execution workspaces

crates/worker-runtime/src/main.rs

@@ -14,6 +14,7 @@ use std::process::ExitCode;
 use std::sync::Arc;
 
 use worker_runtime::error::RuntimeError;
+use worker_runtime::execution_workspace::LocalGitWorktreeMaterializer;
 use worker_runtime::fs_store::FsRuntimeStoreOptions;
 use worker_runtime::http_server::{
     RuntimeHttpServerConfig, RuntimeHttpServerError, RuntimeHttpStoreSelection,
@@ -80,8 +81,14 @@ fn build_runtime(config: &ProcessConfig) -> Result<Runtime, ProcessError> {
     if let Some(profile) = config.profile.clone() {
         factory = factory.with_profile(profile);
     }
-    let backend =
-        Arc::new(WorkerRuntimeExecutionBackend::new(factory).map_err(ProcessError::WorkerAdapter)?);
+    let execution_workspace_root = execution_workspace_runtime_root(config);
+    let backend = Arc::new(
+        WorkerRuntimeExecutionBackend::new(factory)
+            .map_err(ProcessError::WorkerAdapter)?
+            .with_execution_workspace_materializer(LocalGitWorktreeMaterializer::new(
+                execution_workspace_root,
+            )),
+    );
 
     match &config.http.store {
         RuntimeHttpStoreSelection::Memory => {
@@ -102,6 +109,16 @@ fn build_runtime(config: &ProcessConfig) -> Result<Runtime, ProcessError> {
     }
 }
 
+fn execution_workspace_runtime_root(config: &ProcessConfig) -> PathBuf {
+    match &config.http.store {
+        RuntimeHttpStoreSelection::Fs { root } => root.clone(),
+        _ => config
+            .worker_runtime_base_dir
+            .clone()
+            .unwrap_or_else(|| env::temp_dir().join("yoi-worker-runtime")),
+    }
+}
+
 fn runtime_options_from_http(config: &RuntimeHttpServerConfig) -> RuntimeOptions {
     RuntimeOptions {
         runtime_id: config.runtime_id.clone(),