From d3a93d527336af73df838d69ca42ad1b18adebb8 Mon Sep 17 00:00:00 2001
From: Jarred Sumner <jarred@jarredsumner.com>
Date: Wed, 19 Jan 2022 02:29:07 -0800
Subject: `fs.*Sync()`, `bun wiptest`, and More ™  (#106)
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* very very wip

* almost ready to fix the errors

* Update identity_context.zig

* Update base.zig

* [bun test] It runs successfully

* Remove unnecessary call

* [Bun.js] Improve JS <> Zig unicode string interop

This fixes longstanding unicode bugs with `console.log` & `fetch`.

I believe @evanwashere reported this first awhile ago

* [Bun.js] Implement `Object.is()` binding and a way to set a timeout for script execution

* Update PLCrashReport.zig

* [Bun.js] Make `console.log` more closely match Node.js and Deno

* [Bun.js] Implement formatting specifier for console.*

* Implement `console.clear()`

* bug fix

* Support console.clear()

* Buffer stderr

* [bun test] Begin implementing Node.js `fs`

* Update darwin_c.zig

* Implement more of `fs`

* `mkdir`, `mkdir` recursive, `mkdtemp`

* `open`, `read` (and pread)

* Move some things into more files

* Implement readdir

* `readFile`, `readLink`, and `realpath`

* `writeFile`, `symlink`, `chown`, `rename`, `stat`, `unlink`, `truncate`

* `lutimes`

* Implement `SystemError` and begin wiring up the `fs` module

* `"fs"` - Most of the arguments / validation

* `fs` - Rest of the arguments / validations

* Begin wiring up the `fs` module

* Fix all the build errors

* support printing typed arrays in console.log

* It...works?

* Support `require("fs")`, `import fs from 'fs';`, `import * as fs from 'fs'`

* Fix a couple bugs

* get rid of the crash reporter for now

* Update fs.exports.js

* [bun.js] slight improvement to startup time

* [bun.js] Improve error message printing

* [Bun.js] Add `Bun.gc()` to run the garbage collector manually and report heap size

* [Bun.js] Add Bun.generateHeapSnapshot to return what JS types are using memory

* [Bun.js] Add `Bun.shrink()` to tell JSC to shrink the VM size

* Improve encoding reader

* [bun.js] Improve callback & microtask performance

* Update node_fs.zig

* Implement `console.assert`

* simple test

* [Bun.js] Prepare for multiple globals/realms to support testing

* Create callbacks-overhead.mjs

* Update http.zig

* [Bun.js] Implement `queueMicrotask`

* Add test for queueMicrotask

* :sleepy:

* [Bun.js] Implement `process.versions`, `process.pid`, `process.ppid`, `process.nextTick`, `process.versions`,

* Implement `process.env.toJSON()`

* [Bun.js] Improve performance of `fs.existsSync`

* :nail_care:

* [Bun.js] Implement `process.chdir(str)` and `process.cwd()`, support up to 4 args in `process.nextTick`

* Make creating Zig::Process lazy

* Split processi nto separte file

* [Bun.js] Node.js Streams - Part 1/?

* [Bun.js] Node.js streams 2/?

* WIP streams

* fix crash

* Reduce allocations in many places

* swap

* Make `bun` start 2ms faster

* Always use an apiLock()

* libBacktrace doesn't really work yet

* Fix crash in the upgrade checker

* Clean up code for importing the runtime when not bundling

* :camera:

* Update linker.zig

* 68!

* backtrace

* no, really backtrace

* Fix

* Linux fixes

* Fixes on Linux

* Update mimalloc

* [bun test] Automatically scan for {.test,_test,.spec,_spec}.{jsx,tsx,js,cts,mts,ts,cjs}
---
 integration/bunjs-only-snippets/some-fs.js | 51 ++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 integration/bunjs-only-snippets/some-fs.js

(limited to 'integration/bunjs-only-snippets/some-fs.js')

diff --git a/integration/bunjs-only-snippets/some-fs.js b/integration/bunjs-only-snippets/some-fs.js
new file mode 100644
index 000000000..e6b31f162
--- /dev/null
+++ b/integration/bunjs-only-snippets/some-fs.js
@@ -0,0 +1,51 @@
+const { mkdirSync, existsSync } = require("fs");
+
+var performance = globalThis.performance;
+if (!performance) {
+  try {
+    performance = require("perf_hooks").performance;
+  } catch (e) {}
+}
+
+const count = parseInt(process.env.ITERATIONS || "1", 10) || 1;
+var tempdir = `/tmp/some-fs-test/dir/${Date.now()}/hi`;
+
+for (let i = 0; i < count; i++) {
+  tempdir += `/${i.toString(36)}`;
+}
+
+if (existsSync(tempdir)) {
+  throw new Error(
+    `existsSync reports ${tempdir} exists, but it probably does not`
+  );
+}
+
+var origTempDir = tempdir;
+var iterations = new Array(count * count).fill("");
+var total = 0;
+for (let i = 0; i < count; i++) {
+  for (let j = 0; j < count; j++) {
+    iterations[total++] = `${origTempDir}/${j.toString(36)}-${i.toString(36)}`;
+  }
+}
+tempdir = origTempDir;
+mkdirSync(origTempDir, { recursive: true });
+const recurse = { recursive: false };
+const start = performance.now();
+for (let i = 0; i < total; i++) {
+  mkdirSync(iterations[i], recurse);
+}
+
+console.log("MKDIR " + total + " depth took:", performance.now() - start, "ms");
+
+if (!existsSync(tempdir)) {
+  throw new Error(
+    "Expected directory to exist after mkdirSync, but it doesn't"
+  );
+}
+
+if (mkdirSync(tempdir, { recursive: true })) {
+  throw new Error(
+    "mkdirSync shouldn't return directory name on existing directories"
+  );
+}
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