Migrating an existing codebase, linting for strings outside of jsx

[DanDeMicco]

I am looking to onboard a repo to formatjs which has a lot of hardcoded strings in it. I am using eslint-plugin-formatjs with the recommended rule set (tried strict as well), but is not catching all instances of hardcoding strings in the codebase. For example string literals or in objects defined in separate constants file

const foo = 'foo';
const bar = {
baz: 'baz'
};

I'd like to warn and use intl.formatMessage. Is there any built in lint rules I am missing or can anyone share what they do here?

Also, would love to know if anyone has any tips for migrating 1000's of strings over, does anyone have a codemod they would share?