refactor: replace help.md alias import with help file generator

.gitignore

@@ -14,3 +14,5 @@ test/tmp
 test/typescript/typings
 perf/
 .nyc_output/
+
+cli/help.ts

cli/cli.ts

@@ -1,8 +1,8 @@
 import process from 'process';
-import help from 'help.md';
 import argParser from 'yargs-parser';
 import { version } from '../package.json';
 import { commandAliases } from '../src/utils/options/mergeOptions';
+import help from './help';
 import run from './run/index';
 
 const command = argParser(process.argv.slice(2), {
@@ -11,7 +11,7 @@ const command = argParser(process.argv.slice(2), {
 });
 
 if (command.help || (process.argv.length <= 2 && process.stdin.isTTY)) {
-	console.log(`\n${help.replace('__VERSION__', version)}\n`);
+	console.log(`\n${help}\n`);
 } else if (command.version) {
 	console.log(`rollup v${version}`);
 } else {

package.json

@@ -58,7 +58,6 @@
     "fsevents": "~2.3.2"
   },
   "devDependencies": {
-    "@rollup/plugin-alias": "^3.1.9",
     "@rollup/plugin-buble": "^0.21.3",
     "@rollup/plugin-commonjs": "^21.0.1",
     "@rollup/plugin-json": "^4.1.0",
@@ -103,7 +102,6 @@
     "requirejs": "^2.3.6",
     "rollup": "^2.67.0",
     "rollup-plugin-license": "^2.6.1",
-    "rollup-plugin-string": "^3.0.0",
     "rollup-plugin-terser": "^7.0.2",
     "rollup-plugin-thatworks": "^1.0.4",
     "shx": "^0.3.4",

rollup.config.ts

@@ -1,13 +1,10 @@
 import { promises as fs } from 'fs';
-import { resolve } from 'path';
 import { env } from 'process';
-import alias from '@rollup/plugin-alias';
 import commonjs from '@rollup/plugin-commonjs';
 import json from '@rollup/plugin-json';
 import { nodeResolve } from '@rollup/plugin-node-resolve';
 import typescript from '@rollup/plugin-typescript';
 import type { RollupOptions, WarningHandlerWithDefault } from 'rollup';
-import { string } from 'rollup-plugin-string';
 import { terser } from 'rollup-plugin-terser';
 import addCliEntry from './build-plugins/add-cli-entry';
 import conditionalFsEventsImport from './build-plugins/conditional-fsevents-import';
@@ -50,25 +47,16 @@ const onwarn: WarningHandlerWithDefault = warning => {
 	throw new Error(warning.message);
 };
 
-const moduleAliases = {
-	entries: {
-		'help.md': resolve('cli/help.md')
-	},
-	resolve: ['.js', '.json', '.md']
-};
-
 const treeshake = {
 	moduleSideEffects: false,
 	propertyReadSideEffects: false,
 	tryCatchDeoptimization: false
 };
 
 const nodePlugins = [
-	alias(moduleAliases),
 	nodeResolve(),
 	json(),
 	conditionalFsEventsImport(),
-	string({ include: '**/*.md' }),
 	commonjs({
 		ignoreTryCatch: false,
 		include: 'node_modules/**'
@@ -141,7 +129,6 @@ export default async function (
 		],
 		plugins: [
 			replaceBrowserModules(),
-			alias(moduleAliases),
 			nodeResolve({ browser: true }),
 			json(),
 			commonjs(),

scripts/generate-help-module.js

@@ -0,0 +1,18 @@
+'use strict';
+
+const { promises: fs } = require('fs');
+const { resolve } = require('path');
+
+async function generateHelpModule() {
+	const mdFilename = resolve(__dirname, '../cli/help.md');
+	const mdContent = await fs.readFile(mdFilename, 'utf8');
+
+	const tsFilename = resolve(__dirname, '../cli/help.ts');
+	const tsContent = `import { version } from '../package.json';
+
+export default \`${mdContent.replace('__VERSION__', '${version}').replace(/`/g, '\\`')}\`;
+`;
+	await fs.writeFile(tsFilename, tsContent);
+}
+
+generateHelpModule();