tsrun/ts/index.ts

import * as path from 'path';
import * as tsNode from 'ts-node';

const defaultTsNodeOptions: tsNode.Options = {
  compilerOptions: {
    lib: ['es2016', 'es2017'],
    target: 'es2015'
  },
  skipIgnore: true,
  cacheDirectory: path.join(__dirname, '../tscache')
};

if (process.argv.includes('--nocache')) {
  defaultTsNodeOptions.cache = false;
}

tsNode.register(defaultTsNodeOptions);

if (process.env.CLI_CALL_TSRUN) {
  // contents of argv array
  // process.argv[0] -> node Executable
  // process.argv[1] -> tsrun executable
  const pathToTsFile = process.argv[2];

  const pathToLoad = path.join(process.cwd(), pathToTsFile);
  import(pathToLoad);
}