Can't disable cache with BABEL_DISABLE_CACHE=1

I’m submitting a bug report

Webpack Version: 2.5.1

Babel Core Version: 6.22.1

Babel Loader Version: 6.2.10

Please tell us about your environment: OS X

Current behavior: Babel-loader will cache the results from the first build and continue to read from them for future builds, even when BABEL_DISABLE_CACHE=1 is defined.

e.g.: "dev": "BABEL_DISABLE_CACHE=1 webpack-dev-server"

Expected/desired behavior: No cache should be used at all. All code should be re-compiled every time.

• If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem along with a gist/jsbin of your webpack configuration.

BABEL_DISABLE_CACHE=1 webpack-dev-server

• What is the expected behavior? No cache to be used on future builds.

• What is the motivation / use case for changing the behavior? I don’t want my stuff cached.

[linonetwo]

@dwjft https://github.com/kentcdodds/babel-plugin-preval/issues/19#issuecomment-316208777 FYI

[loganfsmyth]

Currently Babel will invalidate the cache when you change your config or the file content, but otherwise deleting the cache folder is the best way to entirely clear it. As I noted in https://github.com/babel/babel-loader/issues/453#issuecomment-302295145, babel-loader just depends on the cacheDirectory value so you can always use that + an environment variable to toggle caching on your own.

I’ve also filed https://github.com/babel/babel/issues/8497 which we’ll explore for the preval case.