Function runCommand

packages/create-react-router/index.ts:604–626

(
  command: string,
  args: string[],
  options: { cwd: string; stdio: StdioOptions },
)

}

function runCommand(
  command: string,
  args: string[],
  options: { cwd: string; stdio: StdioOptions },
) {
  return new Promise<void>((resolve, reject) => {
    let child = spawn(command, args, options);
    child.on("error", reject);
    child.on("exit", (code, signal) => {
      if (code === 0) {
        resolve();
      } else {
        reject(
          new Error(
            signal
              ? `${command} exited with signal ${signal}`
              : `${command} exited with code ${code}`,
          ),
        );
      }
    });
  });
}

async function updatePackageJSON(ctx: Context) {
  let packageJSONPath = path.join(ctx.cwd, "package.json");