`transform-remove-console` exclude options not working on React Native project

[The0racle]

Describe the bug

I'm using the exclude options but it doesn't seem to have any effect as all logs are removed.

To Reproduce

.babelrc

{
  "presets": ["react-native", "react-native-dotenv"],
  "env": {
    "production": {
        "plugins": [ ["transform-remove-console", { "exclude": [ "error", "warn", "info"] }] ]
    }
  }
}

Actual Output

All console.* output is removed.

Expected Output

console.warn, console.info and console.error should still work.

Configuration

How are you using babel-minify?

"metro-minify-uglify"

Additional context

React Native 0.54.4

[alphacat2018]

Same problem with React Native 0.59.8

[bareynol]

I am using React Native 0.60.5, and transform-remove-console is not removing debugging statements at all. My babel.config.js looks like this:

module.exports = {
  "presets": ["module:metro-react-native-babel-preset"],
  "env": {
    production: {
      plugins: ["react-native-paper/babel", "transform-remove-console"]
    }
  }
}

[bareynol]

I updated to react-native 0.61.2 and modified my babel.config.js to return a function with the signature function(api)

module.exports = function(api) {
  console.log("BABELCONFIG", api.version, api.env("production"), api.env(), process.env.NODE_ENV, process.env.BABEL_ENV);
  return {
    "presets": ["module:metro-react-native-babel-preset"],
    "plugins": ["react-native-paper/babel", "transform-remove-console"]
  }
}

During build I get the following output:

transform[stdout]: BABELCONFIG 7.6.2 true production production production
transform[stdout]: BABELCONFIG 7.6.2 true production production production
transform[stdout]: BABELCONFIG 7.6.2 true production production production
transform[stdout]: BABELCONFIG 7.6.2 true production production production
transform[stdout]: BABELCONFIG 7.6.2 false undefined production undefined
transform[stdout]: BABELCONFIG 7.6.2 false undefined production undefined
transform[stdout]: BABELCONFIG 7.6.2 false undefined production undefined
transform[stdout]: BABELCONFIG 7.6.2 true production production production
transform[stdout]: BABELCONFIG 7.6.2 true production production production
transform[stdout]: BABELCONFIG 7.6.2 false undefined production undefined
transform[stdout]: BABELCONFIG 7.6.2 false undefined production undefined
transform[stdout]: BABELCONFIG 7.6.2 false undefined production undefined

using plugins at top level allows the listed plugins to work, but using the env: {production: { plugins: [...]}} format does not work.

It appears as though BABEL_ENV is sometimes set to 'production' and sometimes undefined, and NODE_ENV is not being used when BABEL_ENV is undefined. I'm at a loss as to why

[bareynol]

For anyone that happens upon this, and has been affected by it, I've found that using the following as my babel.config.js works properly to include transform-remove-console in production builds for react native projects, and properly uses the exclude property if specified:

module.exports = function(api) {
  api.cache(true);
  if (process.env.NODE_ENV === 'production' || process.env.BABEL_ENV === 'production') {
    return {
      "presets": ["module:metro-react-native-babel-preset"],
      "plugins": ["react-native-paper/babel", ["transform-remove-console", {"exclude": ["error", "warn", "info"]}]]
    }
  } else {
    return {
      "presets": ["module:metro-react-native-babel-preset"],
    }
  }
}

[twinkal00]

how to do this code in react js

[romchambe]

Thanks @echolocation your solution works for me in RN

[seanleblancicdtech]

For anyone that happens upon this, and has been affected by it, I've found that using the following as my babel.config.js works properly to include transform-remove-console in production builds for react native projects, and properly uses the exclude property if specified:

How are you specifying this value on the command line?

[seanleblancicdtech]

For those using react-native and generating an artifact like an .ipa or a .apk, how do you affirm a before/after for seeing that console.log is not being included in builds that should be stripping it out? MobSF is still showing our .ipa as possibly containing calls to _NSLog function. This may be coming from other code not our own, however, so I don't know if there is a way to inspect the result (or some intermediate files) to see that console.log is being stripped out for certain builds.