feat(ext/node): embed std/node into the snapshot (#17724)

This commit moves "deno_std/node" in "ext/node" crate. The code is
transpiled and snapshotted during the build process.

During the first pass a minimal amount of work was done to create the
snapshot, a lot of code in "ext/node" depends on presence of "Deno"
global. This code will be gradually fixed in the follow up PRs to migrate
it to import relevant APIs from "internal:" modules.

Currently the code from snapshot is not used in any way, and all
Node/npm compatibility still uses code from 
"https://deno.land/std/node" (or from the location specified by 
"DENO_NODE_COMPAT_URL"). This will also be handled in a follow 
up PRs.

---------

Co-authored-by: crowlkats <crowlkats@toaxl.com>
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>

1 files changed, 46 insertions, 0 deletions

diff --git a/ext/node/polyfills/_fs/_fs_symlink.ts b/ext/node/polyfills/_fs/_fs_symlink.ts
new file mode 100644
index 000000000..c8652885f
--- /dev/null
+++ b/ext/node/polyfills/_fs/_fs_symlink.ts
@@ -0,0 +1,46 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+import { CallbackWithError } from "internal:deno_node/polyfills/_fs/_fs_common.ts";
+import { fromFileUrl } from "internal:deno_node/polyfills/path.ts";
+import { promisify } from "internal:deno_node/polyfills/internal/util.mjs";
+
+type SymlinkType = "file" | "dir";
+
+export function symlink(
+  target: string | URL,
+  path: string | URL,
+  typeOrCallback: SymlinkType | CallbackWithError,
+  maybeCallback?: CallbackWithError,
+) {
+  target = target instanceof URL ? fromFileUrl(target) : target;
+  path = path instanceof URL ? fromFileUrl(path) : path;
+
+  const type: SymlinkType = typeof typeOrCallback === "string"
+    ? typeOrCallback
+    : "file";
+
+  const callback: CallbackWithError = typeof typeOrCallback === "function"
+    ? typeOrCallback
+    : (maybeCallback as CallbackWithError);
+
+  if (!callback) throw new Error("No callback function supplied");
+
+  Deno.symlink(target, path, { type }).then(() => callback(null), callback);
+}
+
+export const symlinkPromise = promisify(symlink) as (
+  target: string | URL,
+  path: string | URL,
+  type?: SymlinkType,
+) => Promise<void>;
+
+export function symlinkSync(
+  target: string | URL,
+  path: string | URL,
+  type?: SymlinkType,
+) {
+  target = target instanceof URL ? fromFileUrl(target) : target;
+  path = path instanceof URL ? fromFileUrl(path) : path;
+  type = type || "file";
+
+  Deno.symlinkSync(target, path, { type });
+}