Update
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Alex
233
esbuild.ts
233
esbuild.ts
@ -1,14 +1,212 @@
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#!/usr/bin/env -S node -r esbin
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import assert from 'node:assert';
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import { readFileSync } from 'node:fs';
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import { resolve, extname, relative } from 'node:path';
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import { isBuiltin } from 'node:module';
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import esbuild from 'esbuild';
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import { resolve } from 'path';
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import { babelPlugin } from './src/babel';
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import type { Loader, Plugin } from 'esbuild';
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import * as babel from '@babel/core';
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import { memoize } from 'lodash';
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import { gray, green } from 'picocolors';
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import type { types as t } from '@babel/core';
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import { dependencies } from './dist/package.json';
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import { createMacro, type MacroHandler } from 'babel-plugin-macros';
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const args = process.argv.slice(2);
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const ENV = process.env.NODE_ENV || 'development';
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const PROD = ENV === 'production';
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class HandlerMap {
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map = new Map<string, MacroHandler>();
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set(names: string | string[], handler: MacroHandler) {
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names = Array.isArray(names) ? names : [names];
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const macro = createMacro(handler);
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for (const name of names) {
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this.map.set(name, macro);
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}
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return this;
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}
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get keys() {
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return Array.from(this.map.keys());
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}
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resolvePath = (module: string) => module;
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require = (module: string) => this.map.get(module);
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isMacrosName = (module: string) => this.map.has(module);
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}
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const map = new HandlerMap()
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.set(
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'object.assign',
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replace(t => t.memberExpression(t.identifier('Object'), t.identifier('assign'))),
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)
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.set(
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['object-values', 'object.values'],
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replace(t => t.memberExpression(t.identifier('Object'), t.identifier('values'))),
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)
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.set(
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'object.fromentries',
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replace(t => t.memberExpression(t.identifier('Object'), t.identifier('fromEntries'))),
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)
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.set(
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'object.entries',
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replace(t => t.memberExpression(t.identifier('Object'), t.identifier('entries'))),
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)
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.set(
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'has',
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replace(t => t.memberExpression(t.identifier('Object'), t.identifier('hasOwn'))),
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)
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.set(
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'array-includes',
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proto(t => t.identifier('includes')),
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)
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.set(
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'array.prototype.flatmap',
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proto(t => t.identifier('flatMap')),
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)
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.set(
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'array.prototype.flat',
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proto(t => t.identifier('flat')),
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)
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.set(
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'array.prototype.findlastindex',
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proto(t => t.identifier('findLastIndex')),
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)
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.set(
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'array.prototype.tosorted',
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proto(t => t.identifier('toSorted')),
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)
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.set(
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'string.prototype.matchall',
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proto(t => t.identifier('matchAll')),
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);
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function replace(getReplacement: (types: typeof t) => t.Expression): MacroHandler {
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return ({ references, babel: { types: t } }) => {
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references.default.forEach(referencePath => {
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referencePath.replaceWith(getReplacement(t));
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});
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};
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}
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function proto(getProperty: (types: typeof t) => t.Expression): MacroHandler {
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return ({ references, babel: { types: t } }) => {
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references.default.forEach(referencePath => {
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const { parent, parentPath } = referencePath;
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assert(t.isCallExpression(parent));
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const [callee, ...rest] = parent.arguments;
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parentPath!.replaceWith(
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t.callExpression(
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t.memberExpression(callee as t.Expression, getProperty(t)),
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rest,
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),
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);
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});
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};
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}
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export const babelPlugin: Plugin = {
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name: 'babel',
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setup(build) {
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const { keys, ...macroOptions } = map;
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build.onLoad({ filter: /\.[jt]sx?$/ }, args => {
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const { path } = args;
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if (path.includes('node_modules/')) {
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return null;
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}
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let source = readFileSync(path, 'utf-8')
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.replaceAll("require('object.hasown/polyfill')()", 'Object.hasOwn')
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.replaceAll("require('object.fromentries/polyfill')()", 'Object.fromEntries');
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if (
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path.includes('eslint-plugin-import/src/rules/') ||
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path.includes('eslint-plugin-import/config/')
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) {
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source = source.replace('\nmodule.exports = {', '\nexport default {');
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}
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const isFlow = source.includes('@flow');
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const loader = extname(path).slice(1) as Loader;
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if (!isFlow && !keys.some(key => source.includes(key))) {
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return { contents: source, loader };
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}
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const res = babel.transformSync(source, {
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filename: path,
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babelrc: false,
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configFile: false,
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parserOpts: {
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plugins: [isFlow ? 'flow' : 'typescript'],
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},
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plugins: [
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isFlow && '@babel/plugin-transform-flow-strip-types',
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['babel-plugin-macros', macroOptions],
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].filter(Boolean),
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})!;
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return {
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contents: res.code!,
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loader,
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};
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});
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},
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};
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declare global {
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interface Array<T> {
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filter(
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predicate: BooleanConstructor,
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): Exclude<T, null | undefined | false | '' | 0>[];
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}
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}
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const log = memoize(console.log);
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const plugins: Plugin[] = [
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babelPlugin,
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{
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name: 'alias',
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setup(build) {
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build.onResolve({ filter: /^jsx-ast-utils$/ }, () => ({
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path: resolve('./jsx-ast-utils/src/index.js'),
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}));
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build.onResolve({ filter: /^jsx-ast-utils\/.+$/ }, ({ path }) => ({
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path: resolve('./jsx-ast-utils/', path.slice('jsx-ast-utils/'.length)) + '.js',
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}));
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},
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},
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];
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if (process.env.DEBUG) {
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plugins.push({
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name: 'deps-check',
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setup(build) {
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const declared = new Set(Object.keys(dependencies));
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build.onResolve({ filter: /^.*$/ }, ({ path, importer }) => {
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if (
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!path.startsWith('./') &&
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!path.startsWith('../') &&
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!isBuiltin(path) &&
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path !== 'eslint' &&
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!path.startsWith('eslint/') &&
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!path.startsWith('eslint-module-utils/') &&
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!declared.has(path)
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) {
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log(green(path), gray('from'), './' + relative(process.cwd(), importer));
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}
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return null;
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});
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},
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});
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}
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async function main(entry: string, outfile: string) {
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const context = await esbuild.context({
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await esbuild.build({
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entryPoints: [entry],
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outfile,
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bundle: true,
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@ -16,37 +214,18 @@ async function main(entry: string, outfile: string) {
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platform: 'node',
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packages: 'external',
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sourcemap: 'linked',
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plugins: [
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babelPlugin,
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{
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name: 'alias',
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setup(build) {
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build.onResolve({ filter: /^jsx-ast-utils$/ }, () => ({
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path: resolve('./jsx-ast-utils/src/index.js'),
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}));
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build.onResolve({ filter: /^jsx-ast-utils\/.+$/ }, ({ path }) => ({
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path:
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resolve('./jsx-ast-utils/', path.slice('jsx-ast-utils/'.length)) + '.js',
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}));
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},
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},
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],
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plugins,
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define: {},
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banner: {
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js: '/* eslint-disable */',
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},
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});
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await context.rebuild();
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if (args.includes('-w') || args.includes('--watch')) {
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await context.watch();
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} else {
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await context.dispose();
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}
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}
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main('./eslint-plugin-react/index.js', './dist/react/index.js');
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main('./eslint-plugin-import/src/index.js', './dist/import/index.js');
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main('./eslint-plugin-jsx-a11y/src/index.js', './dist/jsx-a11y/index.js');
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main('./src/ensureRedirect.ts', './dist/ensureRedirect.js');
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main('./eslint-plugin-react-hooks/index.ts', './dist/react-hooks/index.js');
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main('./eslint-plugin-n/lib/index.js', './dist/n/index.js');
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main('./src/addAlias.ts', './dist/addAlias.js');
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main('./src/rules/index.ts', './dist/rules/index.js');
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