feat(utils): add util that gets the React version of a project, if ex…

…ists

src/createEslintConfig.ts

@@ -1,15 +1,23 @@
 import fs from 'fs';
 import path from 'path';
 import { CLIEngine } from 'eslint';
+import { PackageJson } from './types';
+import { getReactVersion } from './utils';
 
 interface CreateEslintConfigArgs {
+  pkg: PackageJson;
   rootDir: string;
   writeFile: boolean;
 }
 export function createEslintConfig({
+  pkg,
   rootDir,
   writeFile,
 }: CreateEslintConfigArgs): CLIEngine.Options['baseConfig'] {
+  const isReactLibrary = Boolean(getReactVersion(pkg));
+
+  console.log(isReactLibrary);
+
   const config = {
     extends: [
       'react-app',

src/index.ts

@@ -33,18 +33,13 @@ import { concatAllArray } from 'jpjs';
 import getInstallCmd from './getInstallCmd';
 import getInstallArgs from './getInstallArgs';
 import { Input, Select } from 'enquirer';
-import { TsdxOptions } from './types';
+import { PackageJson, TsdxOptions } from './types';
 import { createProgressEstimator } from './createProgressEstimator';
 const pkg = require('../package.json');
 
 const prog = sade('tsdx');
 
-let appPackageJson: {
-  name: string;
-  source?: string;
-  jest?: any;
-  eslint?: any;
-};
+let appPackageJson: PackageJson;
 
 try {
   appPackageJson = fs.readJSONSync(resolveApp('package.json'));
@@ -606,6 +601,7 @@ prog
       const cli = new CLIEngine({
         baseConfig: {
           ...createEslintConfig({
+            pkg: appPackageJson,
             rootDir: paths.appRoot,
             writeFile: opts['write-file'],
           }),

src/types.ts

@@ -18,3 +18,12 @@ export interface TsdxOptions {
   // Is this the very first rollup config (and thus should one-off metadata be extracted)?
   writeMeta?: boolean;
 }
+
+export interface PackageJson {
+  name: string;
+  source?: string;
+  jest?: any;
+  eslint?: any;
+  dependencies?: { [packageName: string]: string };
+  devDependencies?: { [packageName: string]: string };
+}

src/utils.ts

@@ -1,6 +1,7 @@
 import fs from 'fs-extra';
 import path from 'path';
 import camelCase from 'camelcase';
+import { PackageJson } from './types';
 
 // Remove the package name scope if it exists
 export const removeScope = (name: string) => name.replace(/^@.*\//, '');
@@ -35,3 +36,13 @@ export function clearConsole() {
     process.platform === 'win32' ? '\x1B[2J\x1B[0f' : '\x1B[2J\x1B[3J\x1B[H'
   );
 }
+
+export function getReactVersion({
+  dependencies,
+  devDependencies,
+}: PackageJson) {
+  return (
+    (dependencies && dependencies.react) ||
+    (devDependencies && devDependencies.react)
+  );
+}