From 45025fbbb3381351f9f3cf4cdaf0afd39aa3d77b Mon Sep 17 00:00:00 2001
From: Franco Victorio <victorio.franco@gmail.com>
Date: Tue, 27 Jun 2023 13:47:01 +0200
Subject: [PATCH 1/2] Consume downloads instead of piping them

This is a workaround for an issue related to node v18.16.0, the stream module and undici. See https://github.com/nodejs/undici/issues/2173 for the details.
---
 packages/hardhat-core/src/internal/util/download.ts | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/packages/hardhat-core/src/internal/util/download.ts b/packages/hardhat-core/src/internal/util/download.ts
index 7151b71606..eb5b5811cc 100644
--- a/packages/hardhat-core/src/internal/util/download.ts
+++ b/packages/hardhat-core/src/internal/util/download.ts
@@ -1,9 +1,7 @@
 import type { Dispatcher } from "undici";
 
-import fs from "fs";
 import fsExtra from "fs-extra";
 import path from "path";
-import util from "util";
 
 import { getHardhatVersion } from "./packageInfo";
 import { shouldUseProxy } from "./proxy";
@@ -26,9 +24,7 @@ export async function download(
   timeoutMillis = 10000,
   extraHeaders: { [name: string]: string } = {}
 ) {
-  const { pipeline } = await import("stream");
   const { getGlobalDispatcher, ProxyAgent, request } = await import("undici");
-  const streamPipeline = util.promisify(pipeline);
 
   let dispatcher: Dispatcher;
   if (process.env.http_proxy !== undefined && shouldUseProxy(url)) {
@@ -52,10 +48,11 @@ export async function download(
   });
 
   if (response.statusCode >= 200 && response.statusCode <= 299) {
+    const responseBody = await response.body.arrayBuffer();
     const tmpFilePath = resolveTempFileName(filePath);
     await fsExtra.ensureDir(path.dirname(filePath));
 
-    await streamPipeline(response.body, fs.createWriteStream(tmpFilePath));
+    await fsExtra.writeFile(tmpFilePath, responseBody);
     return fsExtra.move(tmpFilePath, filePath, { overwrite: true });
   }
   // undici's response bodies must always be consumed to prevent leaks

From 68cf2a273f67fe1f3e75ef1faa193f779f2e3413 Mon Sep 17 00:00:00 2001
From: Franco Victorio <victorio.franco@gmail.com>
Date: Tue, 27 Jun 2023 13:58:23 +0200
Subject: [PATCH 2/2] Create tricky-parents-warn.md

---
 .changeset/tricky-parents-warn.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/tricky-parents-warn.md

diff --git a/.changeset/tricky-parents-warn.md b/.changeset/tricky-parents-warn.md
new file mode 100644
index 0000000000..85c908f339
--- /dev/null
+++ b/.changeset/tricky-parents-warn.md
@@ -0,0 +1,5 @@
+---
+"hardhat": patch
+---
+
+Fixed an issue related to compiler downloads in node v18.16.x