create-nextjs-storybook/dist/cli/detect.js

Install embedded Storybook route into a NextJS project

import fs from 'fs';
import { findUpSync } from 'find-up';
import semver from 'semver';
import { resolve } from 'path';
const logger = console;
export var SupportedLanguage;
(function (SupportedLanguage) {
    SupportedLanguage["JAVASCRIPT"] = "javascript";
    SupportedLanguage["TYPESCRIPT_3_8"] = "typescript-3-8";
    SupportedLanguage["TYPESCRIPT_4_9"] = "typescript-4-9";
})(SupportedLanguage || (SupportedLanguage = {}));
export function isStorybookInstantiated(configDir = resolve(process.cwd(), '.storybook')) {
    return fs.existsSync(configDir);
}
export async function detectPnp() {
    return !!findUpSync(['.pnp.js', '.pnp.cjs']);
}
export async function detectLanguage(packageManager) {
    let language = SupportedLanguage.JAVASCRIPT;
    if (fs.existsSync('jsconfig.json')) {
        return language;
    }
    const isTypescriptDirectDependency = await packageManager
        .getAllDependencies()
        .then((deps) => Boolean(deps['typescript']));
    const typescriptVersion = await packageManager.getPackageVersion('typescript');
    const prettierVersion = await packageManager.getPackageVersion('prettier');
    const babelPluginTransformTypescriptVersion = await packageManager.getPackageVersion('@babel/plugin-transform-typescript');
    const typescriptEslintParserVersion = await packageManager.getPackageVersion('@typescript-eslint/parser');
    const eslintPluginStorybookVersion = await packageManager.getPackageVersion('eslint-plugin-storybook');
    if (isTypescriptDirectDependency && typescriptVersion) {
        if (semver.gte(typescriptVersion, '4.9.0') &&
            (!prettierVersion || semver.gte(prettierVersion, '2.8.0')) &&
            (!babelPluginTransformTypescriptVersion ||
                semver.gte(babelPluginTransformTypescriptVersion, '7.20.0')) &&
            (!typescriptEslintParserVersion || semver.gte(typescriptEslintParserVersion, '5.44.0')) &&
            (!eslintPluginStorybookVersion || semver.gte(eslintPluginStorybookVersion, '0.6.8'))) {
            language = SupportedLanguage.TYPESCRIPT_4_9;
        }
        else if (semver.gte(typescriptVersion, '3.8.0')) {
            language = SupportedLanguage.TYPESCRIPT_3_8;
        }
        else if (semver.lt(typescriptVersion, '3.8.0')) {
            logger.warn('Detected TypeScript < 3.8, populating with JavaScript examples');
        }
    }
    return language;
}