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ðŸ“ ..
ðŸ“„ add-rm-pkg-deps.js(4.89 KB)
ðŸ“ arborist
ðŸ“„ audit-report.js(11.95 KB)
ðŸ“„ calc-dep-flags.js(3.42 KB)
ðŸ“„ can-place-dep.js(13.94 KB)
ðŸ“„ case-insensitive-map.js(1.21 KB)
ðŸ“„ consistent-resolve.js(1.29 KB)
ðŸ“„ debug.js(1.25 KB)
ðŸ“„ deepest-nesting-target.js(691 B)
ðŸ“„ dep-valid.js(5 KB)
ðŸ“„ diff.js(9.57 KB)
ðŸ“„ edge.js(6.63 KB)
ðŸ“„ from-path.js(1.07 KB)
ðŸ“„ gather-dep-set.js(1.26 KB)
ðŸ“„ index.js(273 B)
ðŸ“„ inventory.js(3.25 KB)
ðŸ“„ link.js(3.06 KB)
ðŸ“„ node.js(42.97 KB)
ðŸ“„ optional-set.js(1.32 KB)
ðŸ“„ override-resolves.js(225 B)
ðŸ“„ override-set.js(3.12 KB)
ðŸ“„ packument-cache.js(2.5 KB)
ðŸ“„ peer-entry-sets.js(2.57 KB)
ðŸ“„ place-dep.js(19.75 KB)
ðŸ“„ printable.js(5.1 KB)
ðŸ“„ query-selector-all.js(28.84 KB)
ðŸ“„ realpath.js(2.59 KB)
ðŸ“„ relpath.js(136 B)
ðŸ“„ reset-dep-flags.js(638 B)
ðŸ“„ retire-path.js(501 B)
ðŸ“„ shrinkwrap.js(36.89 KB)
ðŸ“„ signal-handling.js(2.19 KB)
ðŸ“„ signals.js(1.35 KB)
ðŸ“„ spec-from-lock.js(874 B)
ðŸ“„ tracker.js(2.92 KB)
ðŸ“„ tree-check.js(4.04 KB)
ðŸ“„ version-from-tgz.js(1.45 KB)
ðŸ“„ vuln.js(5.82 KB)
ðŸ“„ yarn-lock.js(10.56 KB)

Editing: dep-valid.js

// Do not rely on package._fields, so that we don't throw
// false failures if a tree is generated by other clients.
// Only relies on child.resolved, which MAY come from
// client-specific package.json meta _fields, but most of
// the time will be pulled out of a lockfile

const semver = require('semver')
const npa = require('npm-package-arg')
const { relative } = require('node:path')
const fromPath = require('./from-path.js')

const depValid = (child, requested, requestor) => {
  // NB: we don't do much to verify 'tag' type requests.
  // Just verify that we got a remote resolution.  Presumably, it
  // came from a registry and was tagged at some point.

if (typeof requested === 'string') {
    try {
      // tarball/dir must have resolved to the same tgz on disk, but for
      // file: deps that depend on other files/dirs, we must resolve the
      // location based on the *requestor* file/dir, not where it ends up.
      // '' is equivalent to '*'
      requested = npa.resolve(child.name, requested || '*', fromPath(requestor, requestor.edgesOut.get(child.name)))
    } catch (er) {
      // Not invalid because the child doesn't match, but because
      // the spec itself is not supported.  Nothing would match,
      // so the edge is definitely not valid and never can be.
      er.dependency = child.name
      er.requested = requested
      requestor.errors.push(er)
      return false
    }
  }

// if the lockfile is super old, or hand-modified,
  // then it's possible to hit this state.
  if (!requested) {
    const er = new Error('Invalid dependency specifier')
    er.dependency = child.name
    er.requested = requested
    requestor.errors.push(er)
    return false
  }

switch (requested.type) {
    case 'range':
      if (requested.fetchSpec === '*') {
        return true
      }
      // fallthrough
    case 'version':
      // if it's a version or a range other than '*', semver it
      return semver.satisfies(child.version, requested.fetchSpec, true)

case 'directory':
      return linkValid(child, requested, requestor)

case 'file':
      return tarballValid(child, requested, requestor)

case 'alias':
      // check that the alias target is valid
      return depValid(child, requested.subSpec, requestor)

case 'tag':
      // if it's a tag, we just verify that it has a tarball resolution
      // presumably, it came from the registry and was tagged at some point
      return child.resolved && npa(child.resolved).type === 'remote'

case 'remote':
      // verify that we got it from the desired location
      return child.resolved === requested.fetchSpec

case 'git': {
      // if it's a git type, verify that they're the same repo
      //
      // if it specifies a definite commit, then it must have the
      // same commit to be considered the same repo
      //
      // if it has a #semver:<range> specifier, verify that the
      // version in the package is in the semver range
      const resRepo = npa(child.resolved || '')
      const resHost = resRepo.hosted
      const reqHost = requested.hosted
      const reqCommit = /^[a-fA-F0-9]{40}$/.test(requested.gitCommittish || '')
      const nc = { noCommittish: !reqCommit }
      if (!resHost) {
        if (resRepo.fetchSpec !== requested.fetchSpec) {
          return false
        }
      } else {
        if (reqHost?.ssh(nc) !== resHost.ssh(nc)) {
          return false
        }
      }
      if (!requested.gitRange) {
        return true
      }
      return semver.satisfies(child.package.version, requested.gitRange, {
        loose: true,
      })
    }

default: // unpossible, just being cautious
      break
  }

const er = new Error('Unsupported dependency type')
  er.dependency = child.name
  er.requested = requested
  requestor.errors.push(er)
  return false
}

const linkValid = (child, requested, requestor) => {
  const isLink = !!child.isLink
  // if we're installing links and the node is a link, then it's invalid because we want
  // a real node to be there.  Except for workspaces. They are always links.
  if (requestor.installLinks && !child.isWorkspace) {
    return !isLink
  }

// directory must be a link to the specified folder
  return isLink && relative(child.realpath, requested.fetchSpec) === ''
}

const tarballValid = (child, requested) => {
  if (child.isLink) {
    return false
  }

if (child.resolved) {
    return child.resolved.replace(/\\/g, '/') === `file:${requested.fetchSpec.replace(/\\/g, '/')}`
  }

// if we have a legacy mutated package.json file.  we can't be 100%
  // sure that it resolved to the same file, but if it was the same
  // request, that's a pretty good indicator of sameness.
  if (child.package._requested) {
    return child.package._requested.saveSpec === requested.saveSpec
  }

// ok, we're probably dealing with some legacy cruft here, not much
  // we can do at this point unfortunately.
  return false
}

module.exports = (child, requested, accept, requestor) =>
  depValid(child, requested, requestor) ||
  (typeof accept === 'string' ? depValid(child, accept, requestor) : false)

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Editing: dep-valid.js

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