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next.js/server/hot-reloader.js

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2016-10-14 15:05:08 +00:00
import WebpackDevServer from 'webpack-dev-server'
export default class HotReloader {
constructor (compiler) {
this.server = new WebpackDevServer(compiler, {
publicPath: '/',
hot: true,
noInfo: true,
clientLogLevel: 'warning'
})
}
async start () {
await this.waitBuild()
await this.listen()
}
async waitBuild () {
const stats = await new Promise((resolve) => {
this.server.middleware.waitUntilValid(resolve)
})
const jsonStats = stats.toJson()
if (jsonStats.errors.length > 0) {
const err = new Error(jsonStats.errors[0])
err.errors = jsonStats.errors
err.warnings = jsonStats.warnings
throw err
}
}
listen () {
return new Promise((resolve, reject) => {
this.server.listen(3030, (err) => {
if (err) return reject(err)
resolve()
})
})
}
get fileSystem () {
return this.server.middleware.fileSystem
}
}