rollup-globals-regex

Configurable globals with RegExp for Rollup

Installation

$ npm install rollup-globals-regex --save

Example

Convert your globals from something like this:

export default {
  ...
  globals: {
    'tslib': 'tslib'
    '@angular/core': 'ng.core',
    '@angular/common': 'ng.common',
    '@angular/http': 'ng.http',
    '@angular/platform-browser': 'ng.platformBrowser',
    '@angular/platform-browser-dynamic': 'ng.platformBrowserDynamic',
    'rxjs/Observable': 'Rx',
    'rxjs/add/observable/of': 'Rx.Observable',
    'rxjs/add/observable/empty': 'Rx.Observable',
    'rxjs/add/operator/switchMap': 'Rx.Observable.prototype',
    'rxjs/add/operator/mergeMap': 'Rx.Observable.prototype',
    'rxjs/add/operator/publishLast': 'Rx.Observable.prototype',
    'rxjs/add/operator/catch': 'Rx.Observable.prototype',
  }
  ...
}

To awesome extensible config like this:

import { globalsRegex, GLOBAL } from 'rollup-globals-regex';

export default {
  ...
  globals: globalsRegex({
    'tslib': 'tslib',
    [GLOBAL.NG2]: GLOBAL.NG2.TPL,
    [GLOBAL.RX]: GLOBAL.RX.TPL,
    [GLOBAL.RX_OBSERVABLE]: GLOBAL.RX_OBSERVABLE.TPL,
    [GLOBAL.RX_OPERATOR]: GLOBAL.RX_OPERATOR.TPL,
  })
  ...
};

NOTE: GLOBAL is just a set of predefined regular expressions for common used globals like Angular. It looks internally something like this:

NG2: {
  toString() {
    return 'ng.$1';
  },
  TPL: transformer(/^\@angular\/(.+)/, fromKebabToCamelCase)
}

So you can very easily define yours or better create a PR to extend GLOBALS object =)

Also you can add transformers on your RegExp's to achive something like converting kebab-case to cameCase, which is useful for global like '@angular/platform-browser' to conver to 'ng.platformBrowser'.

There are some predefined transformers but you can always create your own one - it's a simple function of type GlobalsRegexTransformer - it gets value and index of group in match and returns new string.

PR's with more transformers are very welcomed as well =)

License

MIT © Alex Malkevich