From df062d2c788fd76546d59c67452d8d0fe569c533 Mon Sep 17 00:00:00 2001
From: Divy Srivastava <dj.srivastava23@gmail.com>
Date: Fri, 5 Jan 2024 18:28:33 +0530
Subject: fix(ext/node): add fs.cp, fs.cpSync, promises.cp (#21745)

Fixes https://github.com/denoland/deno/issues/20803
Fixes https://github.com/denoland/deno/issues/21723

Performance: copying a 48GiB rust `target` folder (recursive)
| Platform  | `deno` | `node v21.5` | Improvement |
| -------- | ------- | ------- | ------- |
| macOS (APFS) |   3.1secs  |  127.99 secs |  **42x** |
| Windows | 18.3secs | 67.2secs |  **3.8x** |

Copying files with varying sizes:


![image](https://github.com/denoland/deno/assets/34997667/58932652-6f7a-47f5-8504-896dc9ab4ddc)
---
 cli/standalone/file_system.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'cli/standalone/file_system.rs')

diff --git a/cli/standalone/file_system.rs b/cli/standalone/file_system.rs
index 69e95a97f..f1ea570b5 100644
--- a/cli/standalone/file_system.rs
+++ b/cli/standalone/file_system.rs
@@ -175,6 +175,17 @@ impl FileSystem for DenoCompileFileSystem {
     }
   }
 
+  fn cp_sync(&self, from: &Path, to: &Path) -> FsResult<()> {
+    self.error_if_in_vfs(to)?;
+
+    RealFs.cp_sync(from, to)
+  }
+  async fn cp_async(&self, from: PathBuf, to: PathBuf) -> FsResult<()> {
+    self.error_if_in_vfs(&to)?;
+
+    RealFs.cp_async(from, to).await
+  }
+
   fn stat_sync(&self, path: &Path) -> FsResult<FsStat> {
     if self.0.is_path_within(path) {
       Ok(self.0.stat(path)?)
-- 
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