@babel/node not recognizing ignores from babel.config.js when running babel-node

Bug Report

Current behavior It’s possible it’s a “feature”, but seems like a bug.

So, I have a babel config that has an ignore function in it. Mostly because where I work we have a couple of internal node modules we publish that have some dist folders with import export statements.

The babel.config.js looks more or less like this…

module.exports = (api) => {
    api.cache(true);

    return {
        presets: ['@babel/env'],
        ignore: [function(filepath) {
            if (filepath.includes('my-npm-pkg')) {
                return false;
            }

            return filepath.includes('node_modules');
        }]
    };
};

When I run the following…

babel-node ./index.js

I get the following error…

However, if I run it with an empty ignore, like this…

babel-node --ignore ' ' ./index.js

Everything works…

Expected behavior I’d expect that the ignore should be taken from the babel.config.js even if I don’t have an --ignore in the command line args.

Environment I’m running on node 12.17.0.

"@babel/core": "^7.10.5",
"@babel/node": "^7.10.5",
"@babel/preset-env": "^7.10.4"

I also created an example repository here…

https://github.com/jcreamer898/babel-node-ignore

Possible Solution I’m not entirely sure, but maybe it has something to do with https://github.com/babel/babel/blob/main/packages/babel-register/src/node.js#L140?

Does there need to be a check for the babel config’s ignore here? It didn’t seem like that to me because when I console logged the options getting passed here, it didn’t even seem to have the ignore from my babel.config.js.

https://github.com/babel/babel/blob/main/packages/babel-node/src/_babel-node.js#L94

So, my suspicion is that the --ignore ' ' is just nuking the ignore option totally, and babel.config.js is firing on a file by file basis later on as they’re processing individual files?

[jcreamer898]

Right, exactly, it’s like it doesn’t work at all when the config file is being used. I think the “default” --ignore is taking over whatever is in the babel config.

[Edmond-XavierCollot]

I have the same issue, the only and ignore options of my babel.config.json are ignored when running babel-node. I have to specify the options directly in the cli babel-node --only src,my-library src/index.js