fix: revert back to using native cp

packages/backend-embed/build.rs

@@ -1,5 +1,4 @@
 use anyhow::*;
-use fs_extra::dir::{copy, CopyOptions};
 use merkle_hash::MerkleTree;
 use std::fs;
 use std::path::{Path, PathBuf};
@@ -30,11 +29,33 @@ async fn main() -> Result<()> {
 	}
 
 	// Copy backend directory to out_dir
-	let mut copy_options = CopyOptions::new();
-	copy_options.overwrite = true;
-	copy_options.copy_inside = true;
-	copy(&backend_path, &out_backend_path, &copy_options)
-		.with_context(|| format!("failed to copy directory from {} to {}", backend_path.display(), out_backend_path.display()))?;
+	// TODO: This breaks    deno check``
+	// let mut copy_options = CopyOptions::new();
+	// copy_options.overwrite = true;
+	// copy_options.copy_inside = true;
+	// copy(&backend_path, &out_backend_path, &copy_options).with_context(|| {
+	// 	format!(
+	// 		"failed to copy directory from {} to {}",
+	// 		backend_path.display(),
+	// 		out_backend_path.display()
+	// 	)
+	// })?;
+
+	let status = std::process::Command::new("cp")
+		.arg("-R")
+		.arg(&backend_path)
+		.arg(&out_backend_path)
+		.status()
+		.with_context(|| {
+			format!(
+				"failed to copy directory from {} to {}",
+				backend_path.display(),
+				out_backend_path.display()
+			)
+		})?;
+	if !status.success() {
+		return Err(anyhow!("cp command failed"));
+	}
 
 	// Install deno
 	let deno_dir = Path::new(&out_dir).join("deno");
@@ -61,7 +82,10 @@ async fn main() -> Result<()> {
 		.arg("task")
 		.arg("prepare")
 		// Deno runs out of memory on Windows
-		.env("DENO_V8_FLAGS", "--max-heap-size=8192,--max-old-space-size=8192")
+		.env(
+			"DENO_V8_FLAGS",
+			"--max-heap-size=8192,--max-old-space-size=8192",
+		)
 		.current_dir(&out_backend_path)
 		.status()?;
 	if !status.success() {

packages/backend/deno.jsonc

@@ -7,19 +7,14 @@
 		"check": "deno check cli/**/*.ts toolchain/**/*.ts runtime/**/*.ts",
 
 		// Remove old vendored files in order to ensure a consistent cache.
-		//
-		// The deno.lock needs to be cleared to prevent from caching unused
-		// dependencies.
-		//
-		// strip_cross_platform removes files that are not cross-platform & deletes
-		// broken symlinks.
 		"cache": "deno task cache:purge && deno task cache:download",
-		"cache:purge": "rm -rf deno.lock vendor node_modules",
+		"cache:purge": "rm -rf vendor node_modules",
 		"cache:download": "deno cache cli/tasks/**/*.ts",
 
-		// Cache must be the last step in order to prevent unwanted extra cached
-		// files
-		"prepare": "deno task format && deno task check && deno task cache",
+    // Clear cache first in order to have as clean an environment as possible.
+    // Cache must be the last step in order to prevent unwanted extra cached
+    // files. Need to download cache before check in order to prevent error.
+		"prepare": "deno clean && deno task format && deno task check && deno task cache",
 
 		"lint": "deno lint cli/**/*.ts toolchain/**/*.ts runtime/**/*.ts",
 		"lint:fix": "deno lint cli/**/*.ts toolchain/**/*.ts runtime/**/*.ts",