Reconsider bailing out with BABEL_SHOW_CONFIG_FOR

[nicolo-ribaudo]

Bug Report

Current behavior

When using BABEL_SHOW_CONFIG_FOR, the file for which Babel is logging the config is considered as ignored and it's not compiled/handled:

babel/packages/babel-core/src/config/config-chain.js

Line 266 in cb30c1d

return null;

However, all the other files are still compiled. This means that if my build script is babel src -d out, if I have two files (src/main.js and src/dep.js) and I run

BABEL_SHOW_CONFIG_FOR=./src/main.js npm run build

I will get an out folder containing only the dep.js file.

If you want to see this behavior, you can clone https://github.com/nicolo-ribaudo/babel-bug-show-config-behavior and run BABEL_SHOW_CONFIG_FOR=./src/main.js npm run build.

Expected behavior

Either Babel should compile everything, or nothing.

I think the best thing to do would be to still compile the file, so that BABEL_SHOW_CONFIG_FOR only has effect on logging and on nothing else. However, I would be open to ignoring everything.

Additional context

Thanks @laurieontech for the feedback!

[laurieontech]

Thanks for taking the time to write it up! This would be more intuitive behavior in my mind.