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?? access.js(6.17 KB)
?? adduser.js(1.29 KB)
?? audit.js(3.15 KB)
?? bugs.js(847 B)
?? cache.js(11.48 KB)
?? ci.js(4.22 KB)
?? completion.js(8.9 KB)
?? config.js(10.99 KB)
?? dedupe.js(1.41 KB)
?? deprecate.js(2.43 KB)
?? diff.js(7.98 KB)
?? dist-tag.js(5.52 KB)
?? docs.js(449 B)
?? doctor.js(10.06 KB)
?? edit.js(1.76 KB)
?? exec.js(3.42 KB)
?? explain.js(3.57 KB)
?? explore.js(2.16 KB)
?? find-dupes.js(634 B)
?? fund.js(6.46 KB)
?? get.js(577 B)
?? help-search.js(5.52 KB)
?? help.js(3.66 KB)
?? init.js(7.07 KB)
?? install-ci-test.js(373 B)
?? install-test.js(370 B)
?? install.js(5.1 KB)
?? link.js(5.25 KB)
?? ll.js(234 B)
?? login.js(1.29 KB)
?? logout.js(1.42 KB)
?? ls.js(16.8 KB)
?? org.js(3.98 KB)
?? outdated.js(7.95 KB)
?? owner.js(5.85 KB)
?? pack.js(2.69 KB)
?? ping.js(873 B)
?? pkg.js(3.6 KB)
?? prefix.js(309 B)
?? profile.js(10.45 KB)
?? prune.js(799 B)
?? publish.js(9.5 KB)
?? query.js(3.51 KB)
?? rebuild.js(2.19 KB)
?? repo.js(1.24 KB)
?? restart.js(303 B)
?? root.js(295 B)
?? run.js(6.27 KB)
?? sbom.js(4.42 KB)
?? search.js(1.83 KB)
?? set.js(671 B)
?? shrinkwrap.js(2.65 KB)
?? star.js(1.88 KB)
?? stars.js(1.03 KB)
?? start.js(293 B)
?? stop.js(288 B)
?? team.js(4.36 KB)
?? test.js(288 B)
?? token.js(5.92 KB)
?? undeprecate.js(302 B)
?? uninstall.js(1.52 KB)
?? unpublish.js(5.38 KB)
?? unstar.js(183 B)
?? update.js(1.74 KB)
?? version.js(3.5 KB)
?? view.js(13.54 KB)
?? whoami.js(527 B)

Editing: explain.js

const { explainNode } = require('../utils/explain-dep.js')
const npa = require('npm-package-arg')
const semver = require('semver')
const { relative, resolve } = require('node:path')
const validName = require('validate-npm-package-name')
const { output } = require('proc-log')
const ArboristWorkspaceCmd = require('../arborist-cmd.js')

class Explain extends ArboristWorkspaceCmd {
  static description = 'Explain installed packages'
  static name = 'explain'
  static usage = ['<package-spec>']
  static params = [
    'json',
    'workspace',
  ]

static ignoreImplicitWorkspace = false

// TODO
  /* istanbul ignore next */
  static async completion (opts, npm) {
    const completion = require('../utils/installed-deep.js')
    return completion(npm, opts)
  }

async exec (args) {
    if (!args.length) {
      throw this.usageError()
    }

const Arborist = require('@npmcli/arborist')
    const arb = new Arborist({ path: this.npm.prefix, ...this.npm.flatOptions })
    const tree = await arb.loadActual()

if (this.npm.flatOptions.workspacesEnabled
      && this.workspaceNames
      && this.workspaceNames.length
    ) {
      this.filterSet = arb.workspaceDependencySet(tree, this.workspaceNames)
    } else if (!this.npm.flatOptions.workspacesEnabled) {
      this.filterSet =
        arb.excludeWorkspacesDependencySet(tree)
    }

const nodes = new Set()
    for (const arg of args) {
      for (const node of this.getNodes(tree, arg)) {
        const filteredOut = this.filterSet
          && this.filterSet.size > 0
          && !this.filterSet.has(node)
        if (!filteredOut) {
          nodes.add(node)
        }
      }
    }
    if (nodes.size === 0) {
      throw new Error(`No dependencies found matching ${args.join(', ')}`)
    }

const expls = []
    for (const node of nodes) {
      const { extraneous, dev, optional, devOptional, peer, inBundle, overridden } = node
      const expl = node.explain()
      if (extraneous) {
        expl.extraneous = true
      } else {
        expl.dev = dev
        expl.optional = optional
        expl.devOptional = devOptional
        expl.peer = peer
        expl.bundled = inBundle
        expl.overridden = overridden
      }
      expls.push(expl)
    }

if (this.npm.flatOptions.json) {
      output.buffer(expls)
    } else {
      output.standard(expls.map(expl => {
        return explainNode(expl, Infinity, this.npm.chalk)
      }).join('\n\n'))
    }
  }

getNodes (tree, arg) {
    // if it's just a name, return packages by that name
    const { validForOldPackages: valid } = validName(arg)
    if (valid) {
      return tree.inventory.query('packageName', arg)
    }

// if it's a location, get that node
    const maybeLoc = arg.replace(/\\/g, '/').replace(/\/+$/, '')
    const nodeByLoc = tree.inventory.get(maybeLoc)
    if (nodeByLoc) {
      return [nodeByLoc]
    }

// maybe a path to a node_modules folder
    const maybePath = relative(this.npm.prefix, resolve(maybeLoc))
      .replace(/\\/g, '/').replace(/\/+$/, '')
    const nodeByPath = tree.inventory.get(maybePath)
    if (nodeByPath) {
      return [nodeByPath]
    }

// otherwise, try to select all matching nodes
    try {
      return this.getNodesByVersion(tree, arg)
    } catch {
      return []
    }
  }

getNodesByVersion (tree, arg) {
    const spec = npa(arg, this.npm.prefix)
    if (spec.type !== 'version' && spec.type !== 'range') {
      return []
    }

return tree.inventory.filter(node => {
      return node.package.name === spec.name &&
        semver.satisfies(node.package.version, spec.rawSpec)
    })
  }
}

module.exports = Explain

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Editing: explain.js

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