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require('./check-versions')()
var config = require('../config')
if (!process.env.NODE_ENV) {
process.env.NODE_ENV = JSON.parse(config.dev.env.NODE_ENV)
}
var opn = require('opn')
var path = require('path')
var express = require('express')
var webpack = require('webpack')
var proxyMiddleware = require('http-proxy-middleware')
var webpackConfig = (process.env.NODE_ENV === 'testing' || process.env.NODE_ENV === 'production')
? require('./webpack.prod.conf')
: require('./webpack.dev.conf')
// default port where dev server listens for incoming traffic
var port = process.env.PORT || config.dev.port
// automatically open browser, if not set will be false
var autoOpenBrowser = !!config.dev.autoOpenBrowser
// Define HTTP proxies to your custom API backend
var proxyTable = config.dev.proxyTable
var app = express()
var compiler = webpack(webpackConfig)
var devMiddleware = require('webpack-dev-middleware')(compiler, {
publicPath: webpackConfig.output.publicPath,
quiet: true
})
var hotMiddleware = require('webpack-hot-middleware')(compiler, {
log: false,
heartbeat: 2000
})
// force page reload when html-webpack-plugin template changes
compiler.plugin('compilation', function (compilation) {
compilation.plugin('html-webpack-plugin-after-emit', function (data, cb) {
hotMiddleware.publish({ action: 'reload' })
cb()
})
})
// proxy api requests
Object.keys(proxyTable).forEach(function (context) {
var options = proxyTable[context]
if (typeof options === 'string') {
options = { target: options }
}
app.use(proxyMiddleware(options.filter || context, options))
})
// handle fallback for HTML5 history API
app.use(require('connect-history-api-fallback')())
// serve webpack bundle output
app.use(devMiddleware)
// enable hot-reload and state-preserving
// compilation error display
app.use(hotMiddleware)
// serve pure static assets
var staticPath = path.posix.join(config.dev.assetsPublicPath, config.dev.assetsSubDirectory)
app.use(staticPath, express.static('./static'))
var _resolve
var readyPromise = new Promise(resolve => {
_resolve = resolve
})
console.log('> Starting dev server...')
devMiddleware.waitUntilValid(() => {
console.log('> Listening at ' + uri + '\n')
// when env is testing, don't need open it
if (autoOpenBrowser && process.env.NODE_ENV !== 'testing') {
opn(uri)
}
_resolve()
})
var server = app.listen(port)
module.exports = {
ready: readyPromise,
close: () => {
server.close()
}
}