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rollup-plugin-node-globals

rollup-plugin-node-globals

Plugin to insert node globals including so code that works with browserify should work even if it uses process or buffers. This is based on rollup-plugin-inject .

  • process
  • global
  • Buffer
  • __dirname
  • __filename

Plus process.nextTick and process.browser are optimized to only pull in themselves and __dirname and __filename point to the file on disk

Only option beyond the default plugin ones is an optional basedir which is used for resolving __dirname and __filename.

examples

var foo;
if (process.browser) {
  foo = 'bar';
} else {
  foo = 'baz';
}

turns into

import {browser} from 'path/to/process';
var foo;
if (browser) {
  foo = 'bar';
} else {
  foo = 'baz';
}

but with rollup that ends up being

var browser = true;
var foo;
if (browser) {
  foo = 'bar';
} else {
  foo = 'baz';
}

or

var timeout;
if (global.setImmediate) {
  timeout = global.setImmediate;
} else {
  timeout = global.setTimeout;
}
export default timeout;

turns into

import {_global} from 'path/to/global.js';
var timeout;
if (_global.setImmediate) {
  timeout = _global.setImmediate;
} else {
  timeout = _global.setTimeout;
}
export default timeout;
 

which rollup turns into

var _global = typeof global !== "undefined" ? global :
            typeof self !== "undefined" ? self :
            typeof window !== "undefined" ? window : {}
 
var timeout;
if (_global.setImmediate) {
  timeout = _global.setImmediate;
} else {
  timeout = _global.setTimeout;
}
var timeout$1 = timeout;
 
export default timeout$1;

With that top piece only showing up once no matter how many times global was used.