'use strict'

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const path = require('path')

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const archy = require('archy')

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const figgyPudding = require('figgy-pudding')

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const readPackageTree = require('read-package-tree')

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const npm = require('./npm.js')

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const npmConfig = require('./config/figgy-config.js')

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const fetchPackageMetadata = require('./fetch-package-metadata.js')

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const computeMetadata = require('./install/deps.js').computeMetadata

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const readShrinkwrap = require('./install/read-shrinkwrap.js')

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const mutateIntoLogicalTree = require('./install/mutate-into-logical-tree.js')

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const output = require('./utils/output.js')

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const openUrl = require('./utils/open-url.js')

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const { getFundingInfo, retrieveFunding, validFundingField, flatCacheSymbol } = require('./utils/funding.js')

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const FundConfig = figgyPudding({

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browser: {}, // used by ./utils/open-url

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global: {},

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json: {},

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unicode: {},

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which: {}

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})

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module.exports = fundCmd

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const usage = require('./utils/usage')

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fundCmd.usage = usage(

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'fund',

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'npm fund [--json]',

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'npm fund [--browser] [[<@scope>/]<pkg> [--which=<fundingSourceNumber>]'

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)

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fundCmd.completion = function (opts, cb) {

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const argv = opts.conf.argv.remain

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switch (argv[2]) {

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case 'fund':

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return cb(null, [])

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default:

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return cb(new Error(argv[2] + ' not recognized'))

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}

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}

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function printJSON (fundingInfo) {

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return JSON.stringify(fundingInfo, null, 2)

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}

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// the human-printable version does some special things that turned out to

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// be very verbose but hopefully not hard to follow: we stack up items

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// that have a shared url/type and make sure they're printed at the highest

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// level possible, in that process they also carry their dependencies along

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// with them, moving those up in the visual tree

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function printHuman (fundingInfo, opts) {

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const flatCache = fundingInfo[flatCacheSymbol]

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const { name, version } = fundingInfo

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const printableVersion = version ? `@${version}` : ''

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const items = Object.keys(flatCache).map((url) => {

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const deps = flatCache[url]

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const packages = deps.map((dep) => {

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const { name, version } = dep

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const printableVersion = version ? `@${version}` : ''

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return `${name}${printableVersion}`

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})

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return {

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label: url,

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nodes: [packages.join(', ')]

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}

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})

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return archy({ label: `${name}${printableVersion}`, nodes: items }, '', { unicode: opts.unicode })

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}

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function openFundingUrl (packageName, fundingSourceNumber, cb) {

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function getUrlAndOpen (packageMetadata) {

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const { funding } = packageMetadata

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const validSources = [].concat(retrieveFunding(funding)).filter(validFundingField)

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if (validSources.length === 1 || (fundingSourceNumber > 0 && fundingSourceNumber <= validSources.length)) {

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const { type, url } = validSources[fundingSourceNumber ? fundingSourceNumber - 1 : 0]

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const typePrefix = type ? `${type} funding` : 'Funding'

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const msg = `${typePrefix} available at the following URL`

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openUrl(url, msg, cb)

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} else if (!(fundingSourceNumber >= 1)) {

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validSources.forEach(({ type, url }, i) => {

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const typePrefix = type ? `${type} funding` : 'Funding'

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const msg = `${typePrefix} available at the following URL`

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console.log(`${i + 1}: ${msg}: ${url}`)

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})

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console.log('Run `npm fund [<@scope>/]<pkg> --which=1`, for example, to open the first funding URL listed in that package')

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cb()

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} else {

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const noFundingError = new Error(`No valid funding method available for: ${packageName}`)

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noFundingError.code = 'ENOFUND'

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throw noFundingError

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}

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}

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fetchPackageMetadata(

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packageName,

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'.',

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{ fullMetadata: true },

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function (err, packageMetadata) {

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if (err) return cb(err)

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getUrlAndOpen(packageMetadata)

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}

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)

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}

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function fundCmd (args, cb) {

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const opts = FundConfig(npmConfig())

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const dir = path.resolve(npm.dir, '..')

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const packageName = args[0]

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const numberArg = opts.which

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const fundingSourceNumber = numberArg && parseInt(numberArg, 10)

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if (numberArg !== undefined && (String(fundingSourceNumber) !== numberArg || fundingSourceNumber < 1)) {

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const err = new Error('`npm fund [<@scope>/]<pkg> [--which=fundingSourceNumber]` must be given a positive integer')

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err.code = 'EFUNDNUMBER'

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throw err

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}

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if (opts.global) {

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const err = new Error('`npm fund` does not support global packages')

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err.code = 'EFUNDGLOBAL'

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throw err

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}

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if (packageName) {

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openFundingUrl(packageName, fundingSourceNumber, cb)

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return

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}

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readPackageTree(dir, function (err, tree) {

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if (err) {

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process.exitCode = 1

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return cb(err)

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}

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readShrinkwrap.andInflate(tree, function () {

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const fundingInfo = getFundingInfo(

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mutateIntoLogicalTree.asReadInstalled(

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computeMetadata(tree)

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)

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)

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const print = opts.json

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? printJSON

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: printHuman

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output(

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print(

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fundingInfo,

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opts

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)

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)

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cb(err, tree)

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})

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})

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}

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