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211 lines
9.0 KiB
211 lines
9.0 KiB
2 years ago
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"use strict";
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// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT license.
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// See LICENSE in the project root for license information.
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// This is a workaround for https://github.com/eslint/eslint/issues/3458
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//
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// To correct how ESLint searches for plugin packages, add this line to the top of your project's .eslintrc.js file:
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//
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// require("@rushstack/eslint-patch/modern-module-resolution");
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//
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const path = require('path');
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const fs = require('fs');
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const isModuleResolutionError = (ex) => typeof ex === 'object' && !!ex && 'code' in ex && ex.code === 'MODULE_NOT_FOUND';
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// Module path for eslintrc.cjs
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// Example: ".../@eslint/eslintrc/dist/eslintrc.cjs"
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let eslintrcBundlePath = undefined;
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// Module path for config-array-factory.js
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// Example: ".../@eslint/eslintrc/lib/config-array-factory"
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let configArrayFactoryPath = undefined;
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// Module path for relative-module-resolver.js
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// Example: ".../@eslint/eslintrc/lib/shared/relative-module-resolver"
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let moduleResolverPath = undefined;
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// Folder path where ESLint's package.json can be found
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// Example: ".../node_modules/eslint"
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let eslintFolder = undefined;
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// Probe for the ESLint >=8.0.0 layout:
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for (let currentModule = module;;) {
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if (!eslintrcBundlePath) {
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// For ESLint >=8.0.0, all @eslint/eslintrc code is bundled at this path:
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// .../@eslint/eslintrc/dist/eslintrc.cjs
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try {
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const eslintrcFolder = path.dirname(require.resolve('@eslint/eslintrc/package.json', { paths: [currentModule.path] }));
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// Make sure we actually resolved the module in our call path
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// and not some other spurious dependency.
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if (path.join(eslintrcFolder, 'dist/eslintrc.cjs') === currentModule.filename) {
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eslintrcBundlePath = path.join(eslintrcFolder, 'dist/eslintrc.cjs');
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}
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}
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catch (ex) {
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// Module resolution failures are expected, as we're walking
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// up our require stack to look for eslint. All other errors
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// are rethrown.
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if (!isModuleResolutionError(ex)) {
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throw ex;
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}
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}
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}
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else {
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// Next look for a file in ESLint's folder
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// .../eslint/lib/cli-engine/cli-engine.js
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try {
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const eslintCandidateFolder = path.dirname(require.resolve('eslint/package.json', {
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paths: [currentModule.path]
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}));
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// Make sure we actually resolved the module in our call path
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// and not some other spurious dependency.
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if (path.join(eslintCandidateFolder, 'lib/cli-engine/cli-engine.js') === currentModule.filename) {
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eslintFolder = eslintCandidateFolder;
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break;
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}
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}
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catch (ex) {
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// Module resolution failures are expected, as we're walking
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// up our require stack to look for eslint. All other errors
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// are rethrown.
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if (!isModuleResolutionError(ex)) {
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throw ex;
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}
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}
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}
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if (!currentModule.parent) {
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break;
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}
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currentModule = currentModule.parent;
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}
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if (!eslintFolder) {
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// Probe for the ESLint >=7.8.0 layout:
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for (let currentModule = module;;) {
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if (!configArrayFactoryPath) {
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// For ESLint >=7.8.0, config-array-factory.js is at this path:
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// .../@eslint/eslintrc/lib/config-array-factory.js
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try {
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const eslintrcFolder = path.dirname(require.resolve('@eslint/eslintrc/package.json', {
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paths: [currentModule.path]
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}));
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if (path.join(eslintrcFolder, '/lib/config-array-factory.js') == currentModule.filename) {
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configArrayFactoryPath = path.join(eslintrcFolder, 'lib/config-array-factory.js');
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moduleResolverPath = path.join(eslintrcFolder, 'lib/shared/relative-module-resolver');
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}
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}
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catch (ex) {
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// Module resolution failures are expected, as we're walking
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// up our require stack to look for eslint. All other errors
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// are rethrown.
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if (!isModuleResolutionError(ex)) {
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throw ex;
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}
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}
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}
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else {
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// Next look for a file in ESLint's folder
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// .../eslint/lib/cli-engine/cli-engine.js
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try {
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const eslintCandidateFolder = path.dirname(require.resolve('eslint/package.json', {
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paths: [currentModule.path]
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}));
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if (path.join(eslintCandidateFolder, 'lib/cli-engine/cli-engine.js') == currentModule.filename) {
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eslintFolder = eslintCandidateFolder;
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break;
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}
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}
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catch (ex) {
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// Module resolution failures are expected, as we're walking
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// up our require stack to look for eslint. All other errors
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// are rethrown.
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if (!isModuleResolutionError(ex)) {
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throw ex;
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}
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}
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}
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if (!currentModule.parent) {
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break;
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}
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currentModule = currentModule.parent;
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}
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}
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if (!eslintFolder) {
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// Probe for the <7.8.0 layout:
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for (let currentModule = module;;) {
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// For ESLint <7.8.0, config-array-factory.js was at this path:
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// .../eslint/lib/cli-engine/config-array-factory.js
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if (/[\\/]eslint[\\/]lib[\\/]cli-engine[\\/]config-array-factory\.js$/i.test(currentModule.filename)) {
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eslintFolder = path.join(path.dirname(currentModule.filename), '../..');
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configArrayFactoryPath = path.join(eslintFolder, 'lib/cli-engine/config-array-factory');
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moduleResolverPath = path.join(eslintFolder, 'lib/shared/relative-module-resolver');
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break;
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}
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if (!currentModule.parent) {
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// This was tested with ESLint 6.1.0 .. 7.12.1.
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throw new Error('Failed to patch ESLint because the calling module was not recognized.\n' +
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'If you are using a newer ESLint version that may be unsupported, please create a GitHub issue:\n' +
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'https://github.com/microsoft/rushstack/issues');
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}
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currentModule = currentModule.parent;
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}
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}
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// Detect the ESLint package version
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const eslintPackageJson = fs.readFileSync(path.join(eslintFolder, 'package.json')).toString();
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const eslintPackageObject = JSON.parse(eslintPackageJson);
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const eslintPackageVersion = eslintPackageObject.version;
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const versionMatch = /^([0-9]+)\./.exec(eslintPackageVersion); // parse the SemVer MAJOR part
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if (!versionMatch) {
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throw new Error('Unable to parse ESLint version: ' + eslintPackageVersion);
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}
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const eslintMajorVersion = Number(versionMatch[1]);
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if (!(eslintMajorVersion >= 6 && eslintMajorVersion <= 8)) {
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throw new Error('The patch-eslint.js script has only been tested with ESLint version 6.x, 7.x, and 8.x.' +
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` (Your version: ${eslintPackageVersion})\n` +
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'Consider reporting a GitHub issue:\n' +
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'https://github.com/microsoft/rushstack/issues');
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}
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let ConfigArrayFactory;
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if (eslintMajorVersion === 8) {
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ConfigArrayFactory = require(eslintrcBundlePath).Legacy.ConfigArrayFactory;
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}
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else {
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ConfigArrayFactory = require(configArrayFactoryPath).ConfigArrayFactory;
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}
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if (!ConfigArrayFactory.__patched) {
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ConfigArrayFactory.__patched = true;
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let ModuleResolver;
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if (eslintMajorVersion === 8) {
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ModuleResolver = require(eslintrcBundlePath).Legacy.ModuleResolver;
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}
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else {
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ModuleResolver = require(moduleResolverPath);
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}
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const originalLoadPlugin = ConfigArrayFactory.prototype._loadPlugin;
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if (eslintMajorVersion === 6) {
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// ESLint 6.x
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ConfigArrayFactory.prototype._loadPlugin = function (name, importerPath, importerName) {
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const originalResolve = ModuleResolver.resolve;
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try {
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ModuleResolver.resolve = function (moduleName, relativeToPath) {
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// resolve using importerPath instead of relativeToPath
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return originalResolve.call(this, moduleName, importerPath);
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};
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return originalLoadPlugin.apply(this, arguments);
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}
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finally {
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ModuleResolver.resolve = originalResolve;
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}
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};
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}
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else {
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// ESLint 7.x || 8.x
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ConfigArrayFactory.prototype._loadPlugin = function (name, ctx) {
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const originalResolve = ModuleResolver.resolve;
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try {
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ModuleResolver.resolve = function (moduleName, relativeToPath) {
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// resolve using ctx.filePath instead of relativeToPath
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return originalResolve.call(this, moduleName, ctx.filePath);
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};
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return originalLoadPlugin.apply(this, arguments);
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}
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finally {
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ModuleResolver.resolve = originalResolve;
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}
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};
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}
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}
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//# sourceMappingURL=modern-module-resolution.js.map
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