2019-05-14 22:14:59 +02:00

47 lines
1.2 KiB
JavaScript

const { compile } = require('@riotjs/compiler')
const { Asset } = require('parcel-bundler')
const { relative, dirname } = require('path')
/**
* Generate the hmr code depending on the tag generated by the compiler
* @param {string} path - path to the component file
* @returns {string} the code needed to handle the riot hot reload
*/
function hotReload(path) {
return `;(() => {
if (module.hot) {
const hotReload = require('@riotjs/hot-reload').default
module.hot.accept()
if (module.hot.data) {
const component = require('./${path}').default;
hotReload(component)
}
}
})()`
}
class RiotAsset extends Asset {
constructor(name, pkg, options) {
super(name, pkg, options)
this.type = 'js'
}
async generate() {
const options = (await this.getConfig(['.riotrc', '.riotrc.js', 'riot.config.js'])) || {}
const {code, map} = compile(this.contents, {
file: this.relativeName,
...options
})
return [
{
sourceMap: this.options.sourceMaps ? map : false,
type: 'js',
value: `${code}${options.hot ? hotReload(relative(dirname(this.name), this.relativeName)) : ''}`
}
]
}
}
module.exports = RiotAsset