fix(node): Implement `fs.lchown` (and `process.getegid`) (#24418)

Closes https://github.com/denoland/deno/issues/21260.
Part of https://github.com/denoland/deno/issues/18218.

Implements `node:fs.lchown`, and enables the node_compat test for it.
The test uses `process.getegid`, which we didn't have implemented, so I
went ahead and implemented that as well to get the test working.

2 files changed, 60 insertions, 0 deletions

diff --git a/ext/node/ops/fs.rs b/ext/node/ops/fs.rs
index 304a6c253..47b66ee1d 100644
--- a/ext/node/ops/fs.rs
+++ b/ext/node/ops/fs.rs
@@ -273,3 +273,44 @@ where
 
   Ok(())
 }
+
+#[op2]
+pub fn op_node_lchown_sync<P>(
+  state: &mut OpState,
+  #[string] path: String,
+  uid: Option<u32>,
+  gid: Option<u32>,
+) -> Result<(), AnyError>
+where
+  P: NodePermissions + 'static,
+{
+  let path = PathBuf::from(path);
+  state
+    .borrow_mut::<P>()
+    .check_write_with_api_name(&path, Some("node:fs.lchownSync"))?;
+  let fs = state.borrow::<FileSystemRc>();
+  fs.lchown_sync(&path, uid, gid)?;
+  Ok(())
+}
+
+#[op2(async)]
+pub async fn op_node_lchown<P>(
+  state: Rc<RefCell<OpState>>,
+  #[string] path: String,
+  uid: Option<u32>,
+  gid: Option<u32>,
+) -> Result<(), AnyError>
+where
+  P: NodePermissions + 'static,
+{
+  let path = PathBuf::from(path);
+  let fs = {
+    let mut state = state.borrow_mut();
+    state
+      .borrow_mut::<P>()
+      .check_write_with_api_name(&path, Some("node:fs.lchown"))?;
+    state.borrow::<FileSystemRc>().clone()
+  };
+  fs.lchown_async(path, uid, gid).await?;
+  Ok(())
+}
diff --git a/ext/node/ops/os/mod.rs b/ext/node/ops/os/mod.rs
index 5b32113e5..b7374dc32 100644
--- a/ext/node/ops/os/mod.rs
+++ b/ext/node/ops/os/mod.rs
@@ -75,6 +75,25 @@ where
   Ok(euid)
 }
 
+#[op2(fast)]
+pub fn op_getegid<P>(state: &mut OpState) -> Result<u32, AnyError>
+where
+  P: NodePermissions + 'static,
+{
+  {
+    let permissions = state.borrow_mut::<P>();
+    permissions.check_sys("getegid", "node:os.getegid()")?;
+  }
+
+  #[cfg(windows)]
+  let egid = 0;
+  #[cfg(unix)]
+  // SAFETY: Call to libc getegid.
+  let egid = unsafe { libc::getegid() };
+
+  Ok(egid)
+}
+
 #[op2]
 #[serde]
 pub fn op_cpus<P>(state: &mut OpState) -> Result<Vec<cpus::CpuInfo>, AnyError>