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ðŸ“„ access.js(5.45 KB)
ðŸ“„ adduser.js(2.2 KB)
ðŸ“„ audit.js(11.95 KB)
ðŸ“„ bin.js(729 B)
ðŸ“„ birthday.js(508 B)
ðŸ“„ bugs.js(815 B)
ðŸ“„ cache.js(7.08 KB)
ðŸ“„ ci.js(3.63 KB)
ðŸ“„ completion.js(8.91 KB)
ðŸ“„ config.js(8.11 KB)
ðŸ“„ dedupe.js(1.37 KB)
ðŸ“„ deprecate.js(2.06 KB)
ðŸ“„ diff.js(8.1 KB)
ðŸ“„ dist-tag.js(5.47 KB)
ðŸ“„ docs.js(447 B)
ðŸ“„ doctor.js(9.22 KB)
ðŸ“„ edit.js(2 KB)
ðŸ“„ exec.js(2.44 KB)
ðŸ“„ explain.js(3.55 KB)
ðŸ“„ explore.js(2.33 KB)
ðŸ“„ find-dupes.js(602 B)
ðŸ“„ fund.js(6.37 KB)
ðŸ“„ get.js(524 B)
ðŸ“„ help-search.js(5.62 KB)
ðŸ“„ help.js(4.53 KB)
ðŸ“„ hook.js(3.93 KB)
ðŸ“„ init.js(6.81 KB)
ðŸ“„ install-ci-test.js(377 B)
ðŸ“„ install-test.js(374 B)
ðŸ“„ install.js(5.11 KB)
ðŸ“„ link.js(5.02 KB)
ðŸ“„ ll.js(234 B)
ðŸ“„ logout.js(1.34 KB)
ðŸ“„ ls.js(16.94 KB)
ðŸ“„ org.js(4.2 KB)
ðŸ“„ outdated.js(8.84 KB)
ðŸ“„ owner.js(5.88 KB)
ðŸ“„ pack.js(2.36 KB)
ðŸ“„ ping.js(874 B)
ðŸ“„ pkg.js(3.47 KB)
ðŸ“„ prefix.js(343 B)
ðŸ“„ profile.js(11.25 KB)
ðŸ“„ prune.js(779 B)
ðŸ“„ publish.js(6.33 KB)
ðŸ“„ query.js(2.81 KB)
ðŸ“„ rebuild.js(2.16 KB)
ðŸ“„ repo.js(1.24 KB)
ðŸ“„ restart.js(351 B)
ðŸ“„ root.js(298 B)
ðŸ“„ run-script.js(6.9 KB)
ðŸ“„ search.js(2.72 KB)
ðŸ“„ set-script.js(2.63 KB)
ðŸ“„ set.js(572 B)
ðŸ“„ shrinkwrap.js(2.64 KB)
ðŸ“„ star.js(1.87 KB)
ðŸ“„ stars.js(1.03 KB)
ðŸ“„ start.js(341 B)
ðŸ“„ stop.js(336 B)
ðŸ“„ team.js(4.44 KB)
ðŸ“„ test.js(336 B)
ðŸ“„ token.js(6.79 KB)
ðŸ“„ uninstall.js(1.52 KB)
ðŸ“„ unpublish.js(4.51 KB)
ðŸ“„ unstar.js(182 B)
ðŸ“„ update.js(1.7 KB)
ðŸ“„ version.js(3.6 KB)
ðŸ“„ view.js(14.38 KB)
ðŸ“„ whoami.js(514 B)

Editing: link.js

const fs = require('fs')
const util = require('util')
const readdir = util.promisify(fs.readdir)
const { resolve } = require('path')

const Arborist = require('@npmcli/arborist')
const npa = require('npm-package-arg')
const rpj = require('read-package-json-fast')
const semver = require('semver')

const reifyFinish = require('../utils/reify-finish.js')

const ArboristWorkspaceCmd = require('../arborist-cmd.js')
class Link extends ArboristWorkspaceCmd {
  static description = 'Symlink a package folder'
  static name = 'link'
  static usage = [
    '[<package-spec>]',
  ]

static params = [
    'save',
    'save-exact',
    'global',
    'global-style',
    'legacy-bundling',
    'strict-peer-deps',
    'package-lock',
    'omit',
    'ignore-scripts',
    'audit',
    'bin-links',
    'fund',
    'dry-run',
    ...super.params,
  ]

async completion (opts) {
    const dir = this.npm.globalDir
    const files = await readdir(dir)
    return files.filter(f => !/^[._-]/.test(f))
  }

async exec (args) {
    if (this.npm.global) {
      throw Object.assign(
        new Error(
          'link should never be --global.\n' +
          'Please re-run this command with --local'
        ),
        { code: 'ELINKGLOBAL' }
      )
    }

// link with no args: symlink the folder to the global location
    // link with package arg: symlink the global to the local
    args = args.filter(a => resolve(a) !== this.npm.prefix)
    return args.length
      ? this.linkInstall(args)
      : this.linkPkg()
  }

async linkInstall (args) {
    // load current packages from the global space,
    // and then add symlinks installs locally
    const globalTop = resolve(this.npm.globalDir, '..')
    const globalOpts = {
      ...this.npm.flatOptions,
      path: globalTop,
      global: true,
      prune: false,
    }
    const globalArb = new Arborist(globalOpts)

// get only current top-level packages from the global space
    const globals = await globalArb.loadActual({
      filter: (node, kid) =>
        !node.isRoot || args.some(a => npa(a).name === kid),
    })

// any extra arg that is missing from the current
    // global space should be reified there first
    const missing = this.missingArgsFromTree(globals, args)
    if (missing.length) {
      await globalArb.reify({
        ...globalOpts,
        add: missing,
      })
    }

// get a list of module names that should be linked in the local prefix
    const names = []
    for (const a of args) {
      const arg = npa(a)
      names.push(
        arg.type === 'directory'
          ? (await rpj(resolve(arg.fetchSpec, 'package.json'))).name
          : arg.name
      )
    }

// npm link should not save=true by default unless you're
    // using any of --save-dev or other types
    const save =
      Boolean(
        this.npm.config.find('save') !== 'default' ||
        this.npm.config.get('save-optional') ||
        this.npm.config.get('save-peer') ||
        this.npm.config.get('save-dev') ||
        this.npm.config.get('save-prod')
      )

// create a new arborist instance for the local prefix and
    // reify all the pending names as symlinks there
    const localArb = new Arborist({
      ...this.npm.flatOptions,
      prune: false,
      path: this.npm.prefix,
      save,
    })
    await localArb.reify({
      ...this.npm.flatOptions,
      prune: false,
      path: this.npm.prefix,
      add: names.map(l => `file:${resolve(globalTop, 'node_modules', l).replace(/#/g, '%23')}`),
      save,
      workspaces: this.workspaceNames,
    })

await reifyFinish(this.npm, localArb)
  }

async linkPkg () {
    const wsp = this.workspacePaths
    const paths = wsp && wsp.length ? wsp : [this.npm.prefix]
    const add = paths.map(path => `file:${path.replace(/#/g, '%23')}`)
    const globalTop = resolve(this.npm.globalDir, '..')
    const arb = new Arborist({
      ...this.npm.flatOptions,
      path: globalTop,
      global: true,
    })
    await arb.reify({
      add,
    })
    await reifyFinish(this.npm, arb)
  }

// Returns a list of items that can't be fulfilled by
  // things found in the current arborist inventory
  missingArgsFromTree (tree, args) {
    if (tree.isLink) {
      return this.missingArgsFromTree(tree.target, args)
    }

const foundNodes = []
    const missing = args.filter(a => {
      const arg = npa(a)
      const nodes = tree.children.values()
      const argFound = [...nodes].every(node => {
        // TODO: write tests for unmatching version specs, this is hard to test
        // atm but should be simple once we have a mocked registry again
        if (arg.name !== node.name /* istanbul ignore next */ || (
          arg.version &&
          /* istanbul ignore next */
          !semver.satisfies(node.version, arg.version)
        )) {
          foundNodes.push(node)
          return true
        }
      })
      return argFound
    })

// remote nodes from the loaded tree in order
    // to avoid dropping them later when reifying
    for (const node of foundNodes) {
      node.parent = null
    }

return missing
  }
}
module.exports = Link

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Editing: link.js

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