How to base .prettierignore file on .gitignore

Question

Looking at the Prettier docs, there is a tip to base your .prettierignore file on your .gitignore file.

https://prettier.io/docs/en/install.html

Tip! Base your .prettierignore on .gitignore and .eslintignore (if you have one).

Can someone explain what this means and how to do this? Is there a way to automatically add everything to your .prettierignore included in your .gitignore?

Answer 1

You can actually pass a flag to your prettier command --ignore-path and then give it the path of your .gitignore file so it will use that instead of the .prettierignore file.

prettier --ignore-path .gitignore

Answer 2

They're not implying there's an automatic way to do this, but you could cp .gitignore .prettierignore (or copy it some other way, such as in your IDE). There is a proposal to include other ignore files as well as a node tool to automate this for you if you want to, though.