Merge pull request #5742 from NomicFoundation/bootstrap-optimizations

Bootstrap time optimizations

v-next/example-project/viem-scketch-plugin.ts

@@ -2,20 +2,19 @@ import { HardhatPlugin } from "@ignored/hardhat-vnext/types/plugins";
 import { ChainType } from "@ignored/hardhat-vnext/types/config";
 import { HookContext } from "@ignored/hardhat-vnext/types/hooks";
 
-import { NetworkConnection } from "@ignored/hardhat-vnext/types/network";
+import type { NetworkConnection } from "@ignored/hardhat-vnext/types/network";
 
 import "@ignored/hardhat-vnext/types/network";
 
-import {
+import type {
   Client,
-  createPublicClient,
-  custom,
   CustomTransport,
   PublicActions,
   PublicClient,
   PublicRpcSchema,
 } from "viem";
-import { PublicActionsL2, publicActionsL2 } from "viem/op-stack";
+
+import type { PublicActionsL2 } from "viem/op-stack";
 
 export type ViemPublicClient<ChainTypeT extends ChainType | string> =
   ChainTypeT extends "optimism"
@@ -47,6 +46,8 @@ export const viemScketchPlugin: HardhatPlugin = {
           nextContext: HookContext,
         ) => Promise<NetworkConnection<ChainTypeT>>,
       ) {
+        const { createPublicClient, custom } = await import("viem");
+        const { publicActionsL2 } = await import("viem/op-stack");
         const connection: NetworkConnection<ChainTypeT> = await next(context);
 
         const transport = custom(connection.provider);

v-next/hardhat-node-test-runner/package.json

@@ -56,12 +56,14 @@
     "typescript-eslint": "7.7.1"
   },
   "dependencies": {
-    "@ignored/hardhat-vnext": "workspace:^3.0.0-next.2",
     "@ignored/hardhat-vnext-errors": "workspace:^3.0.0-next.2",
     "@ignored/hardhat-vnext-node-test-reporter": "workspace:^3.0.0-next.2",
     "@ignored/hardhat-vnext-utils": "workspace:^3.0.0-next.2",
     "@ignored/hardhat-vnext-zod-utils": "workspace:^3.0.0-next.2",
     "tsx": "^4.11.0",
     "zod": "^3.23.8"
+  },
+  "peerDependencies": {
+    "@ignored/hardhat-vnext": "workspace:^3.0.0-next.2"
   }
 }

v-next/hardhat/src/cli.ts

@@ -1,15 +1,10 @@
-import { register } from "tsx/esm/api";
-
 // We enable the sourcemaps before loading main, so that everything except this
 // small file is loaded with sourcemaps enabled.
 process.setSourceMapsEnabled(true);
 
-// Register tsx
-const _unregister = register();
-
 // eslint-disable-next-line no-restricted-syntax -- Allow top-level await here
 const { main } = await import("./internal/cli/main.js");
 
-main(process.argv.slice(2)).catch(() => {
+main(process.argv.slice(2), undefined, true).catch(() => {
   process.exitCode = 1;
 });

v-next/hardhat/src/internal/builtin-plugins/network-manager/hook-handlers/hre.ts

@@ -1,16 +1,33 @@
 import type { HardhatRuntimeEnvironmentHooks } from "../../../../types/hooks.js";
-
-import { NetworkManagerImplementation } from "../network-manager.js";
+import type { NetworkManager } from "../../../../types/network.js";
 
 export default async (): Promise<Partial<HardhatRuntimeEnvironmentHooks>> => ({
   created: async (context, hre) => {
-    hre.network = new NetworkManagerImplementation(
-      hre.globalOptions.network !== ""
-        ? hre.globalOptions.network
-        : hre.config.defaultNetwork,
-      hre.config.defaultChainType,
-      hre.config.networks,
-      context.hooks,
-    );
+    let networkManager: NetworkManager | undefined;
+
+    hre.network = {
+      async connect(networkName, chainType, networkConfigOverride) {
+        if (networkManager === undefined) {
+          const { NetworkManagerImplementation } = await import(
+            "../network-manager.js"
+          );
+
+          networkManager = new NetworkManagerImplementation(
+            hre.globalOptions.network !== ""
+              ? hre.globalOptions.network
+              : hre.config.defaultNetwork,
+            hre.config.defaultChainType,
+            hre.config.networks,
+            context.hooks,
+          );
+        }
+
+        return networkManager.connect(
+          networkName,
+          chainType,
+          networkConfigOverride,
+        );
+      },
+    };
   },
 });

v-next/hardhat/src/internal/cli/main.ts

@@ -12,6 +12,7 @@ import {
 import { isCi } from "@ignored/hardhat-vnext-utils/ci";
 import { kebabToCamelCase } from "@ignored/hardhat-vnext-utils/string";
 import debug from "debug";
+import { register } from "tsx/esm/api";
 
 import {
   ArgumentType,
@@ -41,6 +42,7 @@ import { printVersionMessage } from "./version.js";
 export async function main(
   cliArguments: string[],
   print: (message: string) => void = console.log,
+  registerTsx = false,
 ): Promise<void> {
   const log = debug("hardhat:core:cli:main");
 
@@ -78,6 +80,11 @@ export async function main(
 
     const projectRoot = await resolveProjectRoot(configPath);
 
+    // Register tsx
+    if (registerTsx) {
+      register();
+    }
+
     const userConfig = await importUserConfig(configPath);
 
     log("User config imported");

v-next/hardhat/src/internal/core/plugins/detect-plugin-npm-dependency-problems.ts

@@ -5,7 +5,6 @@ import { createRequire } from "node:module";
 import path from "node:path";
 
 import { HardhatError } from "@ignored/hardhat-vnext-errors";
-import semver from "semver";
 
 /**
  * Validate that a plugin is installed and that its peer dependencies are
@@ -66,7 +65,9 @@ export async function detectPluginNpmDependencyProblems(
 
     const installedVersion = dependencyPackageJsonResult.packageJson.version;
 
-    if (!semver.satisfies(installedVersion, versionSpec)) {
+    const { satisfies } = await import("semver");
+
+    if (!satisfies(installedVersion, versionSpec)) {
       throw new HardhatError(
         HardhatError.ERRORS.PLUGINS.DEPENDENCY_VERSION_MISMATCH,
         {