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, 115 insertions, 0 deletions

diff --git a/ext/node/polyfills/_fs/_fs_mkdtemp.ts b/ext/node/polyfills/_fs/_fs_mkdtemp.ts
new file mode 100644
index 000000000..de227b216
--- /dev/null
+++ b/ext/node/polyfills/_fs/_fs_mkdtemp.ts
@@ -0,0 +1,115 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+// Copyright Node.js contributors. All rights reserved. MIT License.
+
+import {
+  TextDecoder,
+  TextEncoder,
+} from "internal:deno_web/08_text_encoding.js";
+import { existsSync } from "internal:deno_node/polyfills/_fs/_fs_exists.ts";
+import {
+  mkdir,
+  mkdirSync,
+} from "internal:deno_node/polyfills/_fs/_fs_mkdir.ts";
+import {
+  ERR_INVALID_ARG_TYPE,
+  ERR_INVALID_OPT_VALUE_ENCODING,
+} from "internal:deno_node/polyfills/internal/errors.ts";
+import { promisify } from "internal:deno_node/polyfills/internal/util.mjs";
+
+export type mkdtempCallback = (
+  err: Error | null,
+  directory?: string,
+) => void;
+
+// https://nodejs.org/dist/latest-v15.x/docs/api/fs.html#fs_fs_mkdtemp_prefix_options_callback
+export function mkdtemp(prefix: string, callback: mkdtempCallback): void;
+export function mkdtemp(
+  prefix: string,
+  options: { encoding: string } | string,
+  callback: mkdtempCallback,
+): void;
+export function mkdtemp(
+  prefix: string,
+  optionsOrCallback: { encoding: string } | string | mkdtempCallback,
+  maybeCallback?: mkdtempCallback,
+) {
+  const callback: mkdtempCallback | undefined =
+    typeof optionsOrCallback == "function" ? optionsOrCallback : maybeCallback;
+  if (!callback) {
+    throw new ERR_INVALID_ARG_TYPE("callback", "function", callback);
+  }
+
+  const encoding: string | undefined = parseEncoding(optionsOrCallback);
+  const path = tempDirPath(prefix);
+
+  mkdir(
+    path,
+    { recursive: false, mode: 0o700 },
+    (err: Error | null | undefined) => {
+      if (err) callback(err);
+      else callback(null, decode(path, encoding));
+    },
+  );
+}
+
+export const mkdtempPromise = promisify(mkdtemp) as (
+  prefix: string,
+  options?: { encoding: string } | string,
+) => Promise<string>;
+
+// https://nodejs.org/dist/latest-v15.x/docs/api/fs.html#fs_fs_mkdtempsync_prefix_options
+export function mkdtempSync(
+  prefix: string,
+  options?: { encoding: string } | string,
+): string {
+  const encoding: string | undefined = parseEncoding(options);
+  const path = tempDirPath(prefix);
+
+  mkdirSync(path, { recursive: false, mode: 0o700 });
+  return decode(path, encoding);
+}
+
+function parseEncoding(
+  optionsOrCallback?: { encoding: string } | string | mkdtempCallback,
+): string | undefined {
+  let encoding: string | undefined;
+  if (typeof optionsOrCallback == "function") encoding = undefined;
+  else if (optionsOrCallback instanceof Object) {
+    encoding = optionsOrCallback?.encoding;
+  } else encoding = optionsOrCallback;
+
+  if (encoding) {
+    try {
+      new TextDecoder(encoding);
+    } catch {
+      throw new ERR_INVALID_OPT_VALUE_ENCODING(encoding);
+    }
+  }
+
+  return encoding;
+}
+
+function decode(str: string, encoding?: string): string {
+  if (!encoding) return str;
+  else {
+    const decoder = new TextDecoder(encoding);
+    const encoder = new TextEncoder();
+    return decoder.decode(encoder.encode(str));
+  }
+}
+
+const CHARS = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+function randomName(): string {
+  return [...Array(6)].map(() =>
+    CHARS[Math.floor(Math.random() * CHARS.length)]
+  ).join("");
+}
+
+function tempDirPath(prefix: string): string {
+  let path: string;
+  do {
+    path = prefix + randomName();
+  } while (existsSync(path));
+
+  return path;
+}