1#!/usr/bin/env node 2import arg from 'arg'; 3import chalk from 'chalk'; 4 5const defaultCmd = 'start'; 6 7export type Command = (argv?: string[]) => void; 8 9const commands: { [command: string]: () => Promise<Command> } = { 10 // Add a new command here 11 start: () => import('../src/start').then((i) => i.expoStart), 12 prebuild: () => import('../src/prebuild').then((i) => i.expoPrebuild), 13 config: () => import('../src/config').then((i) => i.expoConfig), 14 export: () => import('../src/export').then((i) => i.expoExport), 15 16 // Auxiliary commands 17 install: () => import('../src/install').then((i) => i.expoInstall), 18 19 // Auth 20 login: () => import('../src/login').then((i) => i.expoLogin), 21 logout: () => import('../src/logout').then((i) => i.expoLogout), 22 register: () => import('../src/register').then((i) => i.expoRegister), 23 whoami: () => import('../src/whoami').then((i) => i.expoWhoami), 24}; 25 26const args = arg( 27 { 28 // Types 29 '--version': Boolean, 30 '--help': Boolean, 31 32 // Aliases 33 '-v': '--version', 34 '-h': '--help', 35 }, 36 { 37 permissive: true, 38 } 39); 40 41if (args['--version']) { 42 // Version is added in the build script. 43 console.log(process.env.__EXPO_VERSION); 44 process.exit(0); 45} 46 47// Check if we are running `npx expo <subcommand>` or `npx expo` 48const isSubcommand = Boolean(commands[args._[0]]); 49 50// Handle `--help` flag 51if (!isSubcommand && args['--help']) { 52 console.log(chalk` 53 {bold Usage} 54 {bold $} npx expo <command> 55 56 {bold Available commands} 57 ${Object.keys(commands).sort().join(', ')} 58 59 {bold Options} 60 --version, -v Version number 61 --help, -h Displays this message 62 63 For more information run a command with the --help flag 64 {bold $} expo start --help 65 `); 66 process.exit(0); 67} 68 69const command = isSubcommand ? args._[0] : defaultCmd; 70const commandArgs = isSubcommand ? args._.slice(1) : args._; 71 72// Push the help flag to the subcommand args. 73if (args['--help']) { 74 commandArgs.push('--help'); 75} 76 77// Install exit hooks 78process.on('SIGINT', () => process.exit(0)); 79process.on('SIGTERM', () => process.exit(0)); 80 81commands[command]().then((exec) => exec(commandArgs)); 82