Cloning a rule

[timkelty]

Seems like I should be able to figure this out but am striking out…
I want to leave an existing rule in place, but "clone" it and add it as a new rule (including direct props like test, resourceQuery, as well as nested maps like uses).

  const baseRule = neutrino.config.module.rules.get('baseRule');

  neutrino.config.module
    .rule('newRule')
    // I want to apply everything from baseRule (e.g. resourceQuery, use/loaders, etc.)?

    // and then manipulate it
    .test(/newTest/);

[timkelty]

Closest I've gotten is merging each nested ChainedMap explicitly, but seems like there's got to be better way…

  const baseRule = neutrino.config.module.rules.get('baseRule');
  const newRule = neutrino.config.module.rule('newRule').merge(baseRule.entries());

  baseRule.uses.values().forEach((use) => {
    newRule.use(use.name).merge(use.entries());
  });

   newRule.test(/newTest/);

Any ideas? cc @edmorley @eliperelman

[edmorley]

It would seem that perhaps the easiest way would be to add support within webpack-chain, if it were seen to be something that people would use? @eliperelman thoughts?

[guanzo]

I'd like to know how to clone a plugin, and tweak some options.

[TotooriaHyperion]

Also want ability to clone the entire config spec, so I can build and publish different bundle for different platform with only one command in our cli tool.(I mean web+rn+microapp+...)

[Shayan-To]

I need some different processings for a subset of my files, so this would make my life a lot easier.