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next.js/server/build/plugins/pages-plugin.js
João Granado 8c6a4ebb1d Fix generated page chunk when libraryTarget is umd (#4205)
This fixes the generated page chunk created by the webpack `pages-plugin` which adds a new line in the beginning of the template, when using `output.libraryTarget` set to be [`umd`](https://webpack.js.org/configuration/output/#module-definition-systems) it returns the module.

Consider the following example, which is the output with the previous implementation:

```js
(function webpackUniversalModuleDefinition(root, factory) {
  if(typeof exports === 'object' && typeof module === 'object')
    module.exports = factory();
  else if(typeof define === 'function' && define.amd)
    define([], factory);
  else if(typeof exports === 'object')
    exports["MyLibrary"] = factory();
  else
    root["MyLibrary"] = factory();
})(typeof self !== 'undefined' ? self : this, function() {
  return
    __NEXT_REGISTER_PAGE(...)
});
```

`__NEXT_REGISTER_PAGE()` won't be executed since a `return` statement followed by a new line is the same as having a semicolon inserted right after the `return`. By removing the new line in the beginning of the source concatenation (which I suppose was added for stylistic reasons) this works as expected.
2018-05-25 14:23:44 +02:00

51 lines
1.3 KiB
JavaScript

import { ConcatSource } from 'webpack-sources'
import {
IS_BUNDLED_PAGE,
MATCH_ROUTE_NAME
} from '../../utils'
class PageChunkTemplatePlugin {
apply (chunkTemplate) {
chunkTemplate.plugin('render', function (modules, chunk) {
if (!IS_BUNDLED_PAGE.test(chunk.name)) {
return modules
}
let routeName = MATCH_ROUTE_NAME.exec(chunk.name)[1]
// We need to convert \ into / when we are in windows
// to get the proper route name
// Here we need to do windows check because it's possible
// to have "\" in the filename in unix.
// Anyway if someone did that, he'll be having issues here.
// But that's something we cannot avoid.
if (/^win/.test(process.platform)) {
routeName = routeName.replace(/\\/g, '/')
}
routeName = `/${routeName.replace(/(^|\/)index$/, '')}`
const source = new ConcatSource()
source.add(`__NEXT_REGISTER_PAGE('${routeName}', function() {
var comp =
`)
source.add(modules)
source.add(`
return { page: comp.default }
})
`)
return source
})
}
}
export default class PagesPlugin {
apply (compiler) {
compiler.plugin('compilation', (compilation) => {
compilation.chunkTemplate.apply(new PageChunkTemplatePlugin())
})
}
}