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const initJson = require('init-package-json')
const npa = require('npm-package-arg')
const BaseCommand = require('./base-command.js')
class Init extends BaseCommand {
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get name () {
return 'init'
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get usage () {
return [
'[--force|-f|--yes|-y|--scope]',
'<@scope> (same as `npx <@scope>/create`)',
'[<@scope>/]<name> (same as `npx [<@scope>/]create-<name>`)',
]
}
exec (args, cb) {
this.init(args).then(() => cb()).catch(cb)
}
async init (args) {
// the new npx style way
if (args.length) {
const initerName = args[0]
let packageName = initerName
if (/^@[^/]+$/.test(initerName))
packageName = initerName + '/create'
else {
const req = npa(initerName)
if (req.type === 'git' && req.hosted) {
const { user, project } = req.hosted
packageName = initerName
.replace(user + '/' + project, user + '/create-' + project)
} else if (req.registry) {
packageName = req.name.replace(/^(@[^/]+\/)?/, '$1create-')
if (req.rawSpec)
packageName += '@' + req.rawSpec
} else {
throw Object.assign(new Error(
'Unrecognized initializer: ' + initerName +
'\nFor more package binary executing power check out `npx`:' +
'\nhttps://www.npmjs.com/package/npx'
), { code: 'EUNSUPPORTED' })
}
}
this.npm.config.set('package', [])
const newArgs = [packageName, ...args.slice(1)]
return new Promise((res, rej) => {
this.npm.commands.exec(newArgs, er => er ? rej(er) : res())
})
}
// the old way
const dir = process.cwd()
this.npm.log.pause()
this.npm.log.disableProgress()
const initFile = this.npm.config.get('init-module')
if (!this.npm.flatOptions.yes && !this.npm.flatOptions.force) {
this.npm.output([
'This utility will walk you through creating a package.json file.',
'It only covers the most common items, and tries to guess sensible defaults.',
'',
'See `npm help init` for definitive documentation on these fields',
'and exactly what they do.',
'',
'Use `npm install <pkg>` afterwards to install a package and',
'save it as a dependency in the package.json file.',
'',
'Press ^C at any time to quit.',
].join('\n'))
}
// XXX promisify init-package-json
await new Promise((res, rej) => {
initJson(dir, initFile, this.npm.config, (er, data) => {
this.npm.log.resume()
this.npm.log.enableProgress()
this.npm.log.silly('package data', data)
if (er && er.message === 'canceled') {
this.npm.log.warn('init', 'canceled')
return res()
}
if (er)
rej(er)
else {
this.npm.log.info('init', 'written successfully')
res(data)
}
})
})
}
}
module.exports = Init
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