travel/admin/node_modules/@vue/cli-service/lib/commands/help.js

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2024-06-24 11:28:18 +08:00
const { chalk } = require('@vue/cli-shared-utils')
const getPadLength = require('../util/getPadLength')
module.exports = (api, options) => {
api.registerCommand('help', args => {
const commandName = args._[0]
if (!commandName) {
logMainHelp()
} else {
logHelpForCommand(commandName, api.service.commands[commandName])
}
})
function logMainHelp () {
console.log(
`\n Usage: vue-cli-service <command> [options]\n` +
`\n Commands:\n`
)
const commands = api.service.commands
const padLength = getPadLength(commands)
for (const name in commands) {
if (name !== 'help') {
const opts = commands[name].opts || {}
console.log(` ${
chalk.blue(name.padEnd(padLength))
}${
opts.description || ''
}`)
}
}
console.log(`\n run ${
chalk.green(`vue-cli-service help [command]`)
} for usage of a specific command.\n`)
}
function logHelpForCommand (name, command) {
if (!command) {
console.log(chalk.red(`\n command "${name}" does not exist.`))
} else {
const opts = command.opts || {}
if (opts.usage) {
console.log(`\n Usage: ${opts.usage}`)
}
if (opts.options) {
console.log(`\n Options:\n`)
const padLength = getPadLength(opts.options)
for (const [flags, description] of Object.entries(opts.options)) {
console.log(` ${
chalk.blue(flags.padEnd(padLength))
}${
description
}`)
}
}
if (opts.details) {
console.log()
console.log(opts.details.split('\n').map(line => ` ${line}`).join('\n'))
}
console.log()
}
}
}