vue-cli-service serve都干了啥（源码探究--@vue/cli 4.5.15）
const defaults = {
host: '0.0.0.0',
port: 8080,
https: false
}
module.exports = (api, options) => {
api.registerCommand('serve', {
description: 'start development server',
usage: 'vue-cli-service serve [options] [entry]',
options: {
'--open': `open browser on server start`,
'--copy': `copy url to clipboard on server start`,
'--stdin': `close when stdin ends`,
'--mode': `specify env mode (default: development)`,
'--host': `specify host (default: ${defaults.host})`,
'--port': `specify port (default: ${defaults.port})`,
'--https': `use https (default: ${defaults.https})`,
'--public': `specify the public network URL for the HMR client`,
'--skip-plugins': `comma-separated list of plugin names to skip for this run`
}
}, async function serve (args) {
const WebpackDevServer = require('webpack-dev-server')
// create server
const server = new WebpackDevServer(compiler, Object.assign({
logLevel: 'silent',
clientLogLevel: 'silent',
historyApiFallback: {
disableDotRule: true,
rewrites: genHistoryApiFallbackRewrites(options.publicPath, options.pages)
},
contentBase: api.resolve('public'),
watchContentBase: !isProduction,
hot: !isProduction,
injectClient: false,
compress: isProduction,
publicPath: options.publicPath,
overlay: isProduction // TODO disable this
? false
: { warnings: false, errors: true }
}, projectDevServerOptions, {
https: useHttps,
proxy: proxySettings,
// eslint-disable-next-line no-shadow
before (app, server) {
// launch editor support.
// this works with vue-devtools & @vue/cli-overlay
app.use('/__open-in-editor', launchEditorMiddleware(() => console.log(
`To specify an editor, specify the EDITOR env variable or ` +
`add "editor" field to your Vue project config.\n`
)))
// allow other plugins to register middlewares, . PWA
api.service.devServerConfigFns.forEach(fn => fn(app, server))
// apply in project middlewares
projectDevServerOptions.before && projectDevServerOptions.before(app, server)
},
// avoid opening browser
open: false
}))
})
}