feat(core): move swc register to tao

packages/eslint-plugin-nx/package.json

@@ -34,10 +34,8 @@
   "dependencies": {
     "@nrwl/devkit": "*",
     "@nrwl/workspace": "*",
-    "@swc-node/register": "^1.4.2",
     "@typescript-eslint/experimental-utils": "~5.10.0",
     "chalk": "4.1.0",
-    "confusing-browser-globals": "^1.0.9",
-    "tsconfig-paths": "^3.9.0"
+    "confusing-browser-globals": "^1.0.9"
   }
 }

packages/eslint-plugin-nx/src/resolve-workspace-rules.ts

@@ -1,47 +1,17 @@
 import type { TSESLint } from '@typescript-eslint/experimental-utils';
 import { existsSync } from 'fs';
-import { join } from 'path';
 import { WORKSPACE_PLUGIN_DIR, WORKSPACE_RULE_NAMESPACE } from './constants';
-import { readDefaultTsConfig } from '@swc-node/register/read-default-tsconfig';
-import { register } from '@swc-node/register/register';
+import { registerTsProject } from '@nrwl/tao/src/utils/register';
 
 type ESLintRules = Record<string, TSESLint.RuleModule<string, unknown[]>>;
 
-/**
- * Optionally, if ts-node and tsconfig-paths are available in the current workspace, apply the require
- * register hooks so that .ts files can be used for writing workspace lint rules.
- *
- * If ts-node and tsconfig-paths are not available, the user can still provide an index.js file in
- * tools/eslint-rules and write their rules in JavaScript and the fundamentals will still work (but
- * workspace path mapping will not, for example).
- */
-function registerTSWorkspaceLint() {
-  try {
-    register(readDefaultTsConfig(join(WORKSPACE_PLUGIN_DIR, 'tsconfig.json')));
-
-    const tsconfigPaths = require('tsconfig-paths');
-
-    // Load the tsconfig from tools/eslint-rules/tsconfig.json
-    const tsConfigResult = tsconfigPaths.loadConfig(WORKSPACE_PLUGIN_DIR);
-
-    /**
-     * Register the custom workspace path mappings with node so that workspace libraries
-     * can be imported and used within custom workspace lint rules.
-     */
-    return tsconfigPaths.register({
-      baseUrl: tsConfigResult.absoluteBaseUrl,
-      paths: tsConfigResult.paths,
-    });
-  } catch (err) {}
-}
-
 export const workspaceRules = ((): ESLintRules => {
   // If `tools/eslint-rules` folder doesn't exist, there is no point trying to register and load it
   if (!existsSync(WORKSPACE_PLUGIN_DIR)) {
     return {};
   }
   // Register `tools/eslint-rules` for TS transpilation
-  const registrationCleanup = registerTSWorkspaceLint();
+  const registrationCleanup = registerTsProject(WORKSPACE_PLUGIN_DIR);
   try {
     /**
      * Currently we only support applying the rules from the user's workspace plugin object

packages/tao/package.json

@@ -31,6 +31,7 @@
   "homepage": "https://nx.dev",
   "dependencies": {
     "@swc/core": "^1.2.146",
+    "@swc-node/register": "^1.4.2",
     "chalk": "4.1.0",
     "enquirer": "~2.3.6",
     "fast-glob": "3.2.7",
@@ -42,6 +43,7 @@
     "semver": "7.3.4",
     "tmp": "~0.2.1",
     "tslib": "^2.3.0",
+    "tsconfig-paths": "^3.9.0",
     "yargs-parser": "20.0.0"
   }
 }

packages/tao/src/utils/register.ts

@@ -0,0 +1,35 @@
+import { readDefaultTsConfig } from '@swc-node/register/read-default-tsconfig';
+import { register } from '@swc-node/register/register';
+import { join } from 'path';
+
+/**
+ * Optionally, if swc-node and tsconfig-paths are available in the current workspace, apply the require
+ * register hooks so that .ts files can be used for writing custom workspace projects.
+ *
+ * If ts-node and tsconfig-paths are not available, the user can still provide an index.js file in
+ * the root of their project and the fundamentals will still work (but
+ * workspace path mapping will not, for example).
+ */
+export const registerTsProject = (
+  path: string,
+  configFilename = 'tsconfig.json'
+) => {
+  try {
+    const tsConfig = readDefaultTsConfig(join(path, configFilename));
+    register(tsConfig);
+
+    /**
+     * Load the ts config from the source project
+     */
+    const tsconfigPaths = require('tsconfig-paths');
+    const tsConfigResult = tsconfigPaths.loadConfig(path);
+    /**
+     * Register the custom workspace path mappings with node so that workspace libraries
+     * can be imported and used within project
+     */
+    return tsconfigPaths.register({
+      baseUrl: tsConfigResult.absoluteBaseUrl,
+      paths: tsConfigResult.paths,
+    });
+  } catch (err) {}
+};