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#!/usr/bin/env node
const chalk = require('chalk')
const semver = require('semver')
const requiredVersion = require('../package.json').engines.node
if (!semver.satisfies(process.version, requiredVersion)) {
console.log(chalk.red(
`\n[vuepress] minimum Node version not met:` +
`\nYou are using Node ${process.version}, but VuePress ` +
`requires Node ${requiredVersion}.\nPlease upgrade your Node version.\n`
))
process.exit(1)
}
const path = require('path')
const { dev, build, eject } = require('../lib')
const program = require('commander')
program
.version(require('../package.json').version)
.usage('<command> [options]')
program
.command('dev [targetDir]')
.description('start development server')
.option('-p, --port <port>', 'use specified port (default: 8080)')
.option('-h, --host <host>', 'use specified host (default: 0.0.0.0)')
.option('--debug', 'start development server in debug mode')
.action((dir = '.', { host, port, debug }) => {
wrapCommand(dev)(path.resolve(dir), { host, port, debug })
})
program
.command('build [targetDir]')
.description('build dir as static site')
.option('-d, --dest <outDir>', 'specify build output dir (default: .vuepress/dist)')
.option('--debug', 'build in development mode for debugging')
.action((dir = '.', { debug, dest }) => {
const outDir = dest ? path.resolve(dest) : null
wrapCommand(build)(path.resolve(dir), { debug, outDir })
})
program
.command('eject [targetDir]')
.description('copy the default theme into .vuepress/theme for customization.')
.action((dir = '.') => {
wrapCommand(eject)(path.resolve(dir))
})
// output help information on unknown commands
program
.arguments('<command>')
.action((cmd) => {
program.outputHelp()
console.log(` ` + chalk.red(`Unknown command ${chalk.yellow(cmd)}.`))
console.log()
})
// add some useful info on help
program.on('--help', () => {
console.log()
console.log(` Run ${chalk.cyan(`vuepress <command> --help`)} for detailed usage of given command.`)
console.log()
})
program.commands.forEach(c => c.on('--help', () => console.log()))
// enhance common error messages
const enhanceErrorMessages = (methodName, log) => {
program.Command.prototype[methodName] = function (...args) {
if (methodName === 'unknownOption' && this._allowUnknownOption) {
return
}
this.outputHelp()
console.log(` ` + chalk.red(log(...args)))
console.log()
process.exit(1)
}
}
enhanceErrorMessages('missingArgument', argName => {
return `Missing required argument ${chalk.yellow(`<${argName}>`)}.`
})
enhanceErrorMessages('unknownOption', optionName => {
return `Unknown option ${chalk.yellow(optionName)}.`
})
enhanceErrorMessages('optionMissingArgument', (option, flag) => {
return `Missing required argument for option ${chalk.yellow(option.flags)}` + (
flag ? `, got ${chalk.yellow(flag)}` : ``
)
})
program.parse(process.argv)
if (!process.argv.slice(2).length) {
program.outputHelp()
}
function wrapCommand (fn) {
return (...args) => {
return fn(...args).catch(err => {
console.error(chalk.red(err.stack))
process.exitCode = 1
})
}
}
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