import * as fs from 'fs'; import * as yaml from 'js-yaml'; import * as path from 'path'; // tslint:disable-next-line:no-any export function readJsonOrYamlSync(filePath: string): any { switch (path.extname(filePath)) { case '.json': return JSON.parse(fs.readFileSync(filePath, 'utf8')); case '.yaml': case '.yml': return yaml.safeLoad(fs.readFileSync(filePath, 'utf8')); case '.': throw new Error('Will not convert a file that has no extension.'); default: throw new Error('Wrong file extension.'); } }