code-migration-helpers

Softkave Code Migration Helper

Overview

A collection of useful code migration scripts, currently supporting the following:

• Adding .js to your Typescript files; useful when moving an existing commonjs project with multiple files to to esmodules.
• Importing vitest's test and describe functions, and replacing jest.fn() with vi.fn(); useful when moving from jest to vitest in an existing project with a lot of test files.

NOTE: modifications may not always be accurate, so it's best to work off a separate branch without any changes, incase you want to revert all changes and run again.

Install

npm

npm install code-migration-helpers -D

npm one time run

npx code-migration-helpers

yarn

yarn add code-migration-helpers -D

Usage

Add JS extenstion to relative imports

With code-migration-helpers, you can add .js extension to relative imports in all Typescript files in a supplied folder path. To do that, run the following, replacing ../folder/path with your intended folder's path. Also, look at, and follow the advice in the NOTE above before running.

code-migration-helpers add-js-ext ../folder/path

jest to vitest

With code-migration-helpers, you can import test and describe functions, and replace jest.fn() mock functions with vi.fn() in all Typescript files in a supplied folder path. To do that, run the following, replacing ../folder/path with your intended folder's path. Also, look at, and follow the advice in the NOTE above before running.

code-migration-helpers jest-to-vitest ../folder/path