mirror of
https://github.com/terribleplan/next.js.git
synced 2024-01-19 02:48:18 +00:00
103 lines
2.5 KiB
JavaScript
Executable file
103 lines
2.5 KiB
JavaScript
Executable file
#!/usr/bin/env node
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import { join } from 'path'
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import { spawn } from 'cross-spawn'
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import pkg from '../../package.json'
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import {CONFIG_FILE} from '../lib/constants'
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if (pkg.peerDependencies) {
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Object.keys(pkg.peerDependencies).forEach(dependency => {
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try {
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// When 'npm link' is used it checks the clone location. Not the project.
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require.resolve(dependency)
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} catch (err) {
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console.warn(`The module '${dependency}' was not found. Next.js requires that you include it in 'dependencies' of your 'package.json'. To add it, run 'npm install --save ${dependency}'`)
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}
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})
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}
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const defaultCommand = 'dev'
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const commands = new Set([
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'init',
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'build',
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'start',
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'export',
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defaultCommand
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])
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let cmd = process.argv[2]
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let args = []
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let nodeArgs = []
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if (new Set(['--version', '-v']).has(cmd)) {
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console.log(`next.js v${pkg.version}`)
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process.exit(0)
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}
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const inspectArg = process.argv.find(arg => arg.includes('--inspect'))
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if (inspectArg) {
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nodeArgs.push(inspectArg)
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}
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if (new Set(['--help', '-h']).has(cmd)) {
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console.log(`
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Usage
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$ next <command>
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Available commands
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${Array.from(commands).join(', ')}
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For more information run a command with the --help flag
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$ next init --help
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`)
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process.exit(0)
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}
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if (commands.has(cmd)) {
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args = process.argv.slice(3)
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} else {
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cmd = defaultCommand
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args = process.argv.slice(2)
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}
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const defaultEnv = cmd === 'dev' ? 'development' : 'production'
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process.env.NODE_ENV = process.env.NODE_ENV || defaultEnv
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const bin = join(__dirname, 'next-' + cmd)
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const startProcess = () => {
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const proc = spawn('node', [...nodeArgs, ...[bin], ...args], { stdio: 'inherit', customFds: [0, 1, 2] })
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proc.on('close', (code, signal) => {
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if (code !== null) {
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process.exit(code)
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}
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if (signal) {
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if (signal === 'SIGKILL') {
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process.exit(137)
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}
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console.log(`got signal ${signal}, exiting`)
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process.exit(1)
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}
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process.exit(0)
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})
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proc.on('error', (err) => {
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console.error(err)
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process.exit(1)
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})
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return proc
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}
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let proc = startProcess()
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if (cmd === 'dev') {
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const {watchFile} = require('fs')
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watchFile(`${process.cwd()}/${CONFIG_FILE}`, (cur, prev) => {
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if (cur.size > 0 || prev.size > 0) {
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console.log(`\n> Found a change in ${CONFIG_FILE}, restarting the server...`)
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// Don't listen to 'close' now since otherwise parent gets killed by listener
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proc.removeAllListeners('close')
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proc.kill()
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proc = startProcess()
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}
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})
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}
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