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const fs = require('fs')
const { relative, resolve } = require('path')
const mkdirp = require('mkdirp-infer-owner')
const initJson = require('init-package-json')
const npa = require('npm-package-arg')
const rpj = require('read-package-json-fast')
const libexec = require('libnpmexec')
const mapWorkspaces = require('@npmcli/map-workspaces')
const PackageJson = require('@npmcli/package-json')
const getLocationMsg = require('./exec/get-workspace-location-msg.js')
const BaseCommand = require('./base-command.js')
class Init extends BaseCommand {
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get description () {
return 'Create a package.json file'
}
/* istanbul ignore next - see test/lib/load-all-commands.js */
static get params () {
return ['yes', 'force', 'workspace', 'workspaces']
}
/* 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)
}
execWorkspaces (args, filters, cb) {
this.initWorkspaces(args, filters).then(() => cb()).catch(cb)
}
async init (args) {
// npm exec style
if (args.length)
return (await this.execCreate({ args, path: process.cwd() }))
// no args, uses classic init-package-json boilerplate
await this.template()
}
async initWorkspaces (args, filters) {
// reads package.json for the top-level folder first, by doing this we
// ensure the command throw if no package.json is found before trying
// to create a workspace package.json file or its folders
const pkg = await rpj(resolve(this.npm.localPrefix, 'package.json'))
const wPath = filterArg => resolve(this.npm.localPrefix, filterArg)
// npm-exec style, runs in the context of each workspace filter
if (args.length) {
for (const filterArg of filters) {
const path = wPath(filterArg)
await mkdirp(path)
await this.execCreate({ args, path })
await this.setWorkspace({ pkg, workspacePath: path })
}
return
}
// no args, uses classic init-package-json boilerplate
for (const filterArg of filters) {
const path = wPath(filterArg)
await mkdirp(path)
await this.template(path)
await this.setWorkspace({ pkg, workspacePath: path })
}
}
async execCreate ({ args, path }) {
const [initerName, ...otherArgs] = args
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' })
}
}
const newArgs = [packageName, ...otherArgs]
const { color } = this.npm.flatOptions
const {
flatOptions,
localBin,
log,
globalBin,
} = this.npm
// this function is definitely called. But because of coverage map stuff
// it ends up both uncovered, and the coverage report doesn't even mention.
// the tests do assert that some output happens, so we know this line is
// being hit.
/* istanbul ignore next */
const output = (...outputArgs) => this.npm.output(...outputArgs)
const locationMsg = await getLocationMsg({ color, path })
const runPath = path
const scriptShell = this.npm.config.get('script-shell') || undefined
const yes = this.npm.config.get('yes')
await libexec({
...flatOptions,
args: newArgs,
color,
localBin,
locationMsg,
log,
globalBin,
output,
path,
runPath,
scriptShell,
yes,
})
}
async template (path = process.cwd()) {
this.npm.log.pause()
this.npm.log.disableProgress()
const initFile = this.npm.config.get('init-module')
if (!this.npm.config.get('yes') && !this.npm.config.get('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(path, 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)
}
})
})
}
async setWorkspace ({ pkg, workspacePath }) {
const workspaces = await mapWorkspaces({ cwd: this.npm.localPrefix, pkg })
// skip setting workspace if current package.json glob already satisfies it
for (const wPath of workspaces.values()) {
if (wPath === workspacePath)
return
}
// if a create-pkg didn't generate a package.json at the workspace
// folder level, it might not be recognized as a workspace by
// mapWorkspaces, so we're just going to avoid touching the
// top-level package.json
try {
fs.statSync(resolve(workspacePath, 'package.json'))
} catch (err) {
return
}
const pkgJson = await PackageJson.load(this.npm.localPrefix)
pkgJson.update({
workspaces: [
...(pkgJson.content.workspaces || []),
relative(this.npm.localPrefix, workspacePath),
],
})
await pkgJson.save()
}
}
module.exports = Init