1#!/usr/bin/env node 2import chalk from 'chalk'; 3 4import { Command } from '../../bin/cli'; 5import { assertArgs, getProjectRoot, printHelp } from '../utils/args'; 6import { logCmdError } from '../utils/errors'; 7 8export const expoStart: Command = async (argv) => { 9 const args = assertArgs( 10 { 11 // Types 12 '--help': Boolean, 13 '--clear': Boolean, 14 '--max-workers': Number, 15 '--no-dev': Boolean, 16 '--minify': Boolean, 17 '--https': Boolean, 18 '--force-manifest-type': String, 19 '--private-key-path': String, 20 '--port': Number, 21 '--dev-client': Boolean, 22 '--scheme': String, 23 '--android': Boolean, 24 '--ios': Boolean, 25 '--web': Boolean, 26 '--host': String, 27 '--tunnel': Boolean, 28 '--lan': Boolean, 29 '--localhost': Boolean, 30 '--offline': Boolean, 31 '--go': Boolean, 32 // Aliases 33 '-h': '--help', 34 '-c': '--clear', 35 '-p': '--port', 36 '-a': '--android', 37 '-i': '--ios', 38 '-w': '--web', 39 '-m': '--host', 40 '-d': '--dev-client', 41 '-g': '--go', 42 // Alias for adding interop with the Metro docs and RedBox errors. 43 '--reset-cache': '--clear', 44 }, 45 argv 46 ); 47 48 if (args['--help']) { 49 printHelp( 50 `Start a local dev server for the app`, 51 chalk`npx expo start {dim <dir>}`, 52 [ 53 chalk`<dir> Directory of the Expo project. {dim Default: Current working directory}`, 54 `-a, --android Open on a connected Android device`, 55 `-i, --ios Open in an iOS simulator`, 56 `-w, --web Open in a web browser`, 57 ``, 58 chalk`-d, --dev-client Launch in a custom native app`, 59 chalk`-g, --go Launch in Expo Go`, 60 ``, 61 `-c, --clear Clear the bundler cache`, 62 `--max-workers <number> Maximum number of tasks to allow Metro to spawn`, 63 `--no-dev Bundle in production mode`, 64 `--minify Minify JavaScript`, 65 ``, 66 chalk`-m, --host <mode> Dev server hosting type. {dim Default: lan}`, 67 chalk` {bold lan}: Use the local network`, 68 chalk` {bold tunnel}: Use any network by tunnel through ngrok`, 69 chalk` {bold localhost}: Connect to the dev server over localhost`, 70 `--tunnel Same as --host tunnel`, 71 `--lan Same as --host lan`, 72 `--localhost Same as --host localhost`, 73 ``, 74 `--offline Skip network requests and use anonymous manifest signatures`, 75 `--https Start the dev server with https protocol`, 76 `--scheme <scheme> Custom URI protocol to use when launching an app`, 77 chalk`-p, --port <number> Port to start the dev server on (does not apply to web or tunnel). {dim Default: 8081}`, 78 ``, 79 `--force-manifest-type <manifest-type> Override auto detection of manifest type`, 80 chalk`--private-key-path <path> Path to private key for code signing. {dim Default: "private-key.pem" in the same directory as the certificate specified by the expo-updates configuration in app.json.}`, 81 `-h, --help Usage info`, 82 ].join('\n') 83 ); 84 } 85 86 const projectRoot = getProjectRoot(args); 87 const { resolveOptionsAsync } = await import('./resolveOptions'); 88 const options = await resolveOptionsAsync(projectRoot, args).catch(logCmdError); 89 90 const { APISettings } = await import('../api/settings'); 91 APISettings.isOffline = options.offline; 92 93 const { startAsync } = await import('./startAsync'); 94 return startAsync(projectRoot, options, { webOnly: false }).catch(logCmdError); 95}; 96