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next.js/build/webpack/loaders/emit-file-loader.js
Tim Neutkens d674dcc426
Move plugins and loaders to webpack folder (#4618)
Also adds basic `flow` to webpack.js and the plugins.
2018-06-16 19:23:02 +02:00

38 lines
1.1 KiB
JavaScript

import loaderUtils from 'loader-utils'
module.exports = function (content, sourceMap) {
this.cacheable()
const callback = this.async()
const resourcePath = this.resourcePath
const query = loaderUtils.getOptions(this)
// Allows you to do checks on the file name. For example it's used to check if there's both a .js and .jsx file.
if (query.validateFileName) {
try {
query.validateFileName(resourcePath)
} catch (err) {
callback(err)
return
}
}
const name = query.name || '[hash].[ext]'
const context = query.context || this.options.context
const regExp = query.regExp
const opts = { context, content, regExp }
const interpolateName = query.interpolateName || ((name) => name)
const interpolatedName = interpolateName(loaderUtils.interpolateName(this, name, opts), {name, opts})
const emit = (code, map) => {
this.emitFile(interpolatedName, code, map)
callback(null, code, map)
}
if (query.transform) {
const transformed = query.transform({ content, sourceMap, interpolatedName })
return emit(transformed.content, transformed.sourceMap)
}
return emit(content, sourceMap)
}