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https://github.com/nuxt/nuxt.git
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85825d190c
This prevents nuxt process exiting in dev mode on unhandled promises
114 lines
3.0 KiB
JavaScript
Executable File
114 lines
3.0 KiB
JavaScript
Executable File
#!/usr/bin/env node
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// Show logs
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process.env.DEBUG = process.env.DEBUG || 'nuxt:*'
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const _ = require('lodash')
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const debug = require('debug')('nuxt:build')
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debug.color = 2 // force green color
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const fs = require('fs')
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const parseArgs = require('minimist')
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const { Nuxt, Builder } = require('../')
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const chokidar = require('chokidar')
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const resolve = require('path').resolve
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const argv = parseArgs(process.argv.slice(2), {
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alias: {
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h: 'help',
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H: 'hostname',
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p: 'port',
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c: 'config-file'
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},
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boolean: ['h'],
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string: ['H', 'c'],
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default: {
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c: 'nuxt.config.js'
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}
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})
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if (argv.hostname === '') {
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console.error(`> Provided hostname argument has no value`)
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process.exit(1)
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}
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if (argv.help) {
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console.log(`
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Description
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Starts the application in development mode (hot-code reloading, error
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reporting, etc)
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Usage
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$ nuxt dev <dir> -p <port number> -H <hostname>
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Options
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--port, -p A port number on which to start the application
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--hostname, -H Hostname on which to start the application
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--config-file, -c Path to Nuxt.js config file (default: nuxt.config.js)
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--help, -h Displays this message
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`)
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process.exit(0)
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}
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const rootDir = resolve(argv._[0] || '.')
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const nuxtConfigFile = resolve(rootDir, argv['config-file'])
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// Load config once for chokidar
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const nuxtConfig = loadNuxtConfig()
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_.defaultsDeep(nuxtConfig, { watchers: { chokidar: { ignoreInitial: true } } })
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// Start dev
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let dev = startDev()
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// Start watching for nuxt.config.js changes
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chokidar
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.watch(nuxtConfigFile, nuxtConfig.watchers.chokidar)
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.on('all', _.debounce(() => {
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debug('[nuxt.config.js] changed')
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debug('Rebuilding the app...')
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dev = dev.then(startDev)
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}), 2500)
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function startDev (oldNuxt) {
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// Get latest environment variables
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const port = argv.port || process.env.PORT || process.env.npm_package_config_nuxt_port
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const host = argv.hostname || process.env.HOST || process.env.npm_package_config_nuxt_host
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// Load options
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let options = {}
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try {
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options = loadNuxtConfig()
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} catch (err) {
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console.error(err)
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return // Wait for next reload
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}
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// Create nuxt and builder instance
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const nuxt = new Nuxt(options)
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const builder = new Builder(nuxt)
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return Promise.resolve()
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.then(() => builder.build()) // 1- Start build
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.then(() => oldNuxt ? oldNuxt.close() : Promise.resolve()) // 2- Close old nuxt after successful build
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.then(() => nuxt.listen(port, host)) // 3- Start listening
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.then(() => nuxt) // 4- Pass new nuxt to watch chain
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}
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function loadNuxtConfig () {
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let options = {}
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if (fs.existsSync(nuxtConfigFile)) {
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delete require.cache[nuxtConfigFile]
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options = require(nuxtConfigFile)
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} else if (argv['config-file'] !== 'nuxt.config.js') {
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console.error(`> Could not load config file ${argv['config-file']}`)
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process.exit(1)
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}
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if (typeof options.rootDir !== 'string') {
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options.rootDir = rootDir
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}
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// Force development mode for add hot reloading and watching changes
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options.dev = true
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return options
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}
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