ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: usr / lib / node_modules / npm / node_modules / @npmcli / arborist / lib

// when an optional dep fails to install, we need to remove the branch of the
// graph up to the first optionalDependencies, as well as any nodes that are
// only required by other nodes in the set.
//
// This function finds the set of nodes that will need to be removed in that
// case.
//
// Note that this is *only* going to work with trees where calcDepFlags
// has been called, because we rely on the node.optional flag.

const gatherDepSet = require('./gather-dep-set.js')
const optionalSet = node => {
  if (!node.optional) {
    return new Set()
  }

// start with the node, then walk up the dependency graph until we
  // get to the boundaries that define the optional set.  since the
  // node is optional, we know that all paths INTO this area of the
  // graph are optional, but there may be non-optional dependencies
  // WITHIN the area.
  const set = new Set([node])
  for (const node of set) {
    for (const edge of node.edgesIn) {
      if (!edge.optional) {
        set.add(edge.from)
      }
    }
  }

// now that we've hit the boundary, gather the rest of the nodes in
  // the optional section.  that's the set of dependencies that are only
  // depended upon by other nodes within the set, or optional dependencies
  // from outside the set.
  return gatherDepSet(set, edge => !edge.optional)
}

module.exports = optionalSet

[-] reset-dep-flags.js [edit]
[-] spec-from-lock.js [edit]
[-] tracker.js [edit]
[-] printable.js [edit]
[-] gather-dep-set.js [edit]
[-] relpath.js [edit]
[+] ..
[-] place-dep.js [edit]
[-] signal-handling.js [edit]
[-] yarn-lock.js [edit]
[-] from-path.js [edit]
[-] override-set.js [edit]
[-] debug.js [edit]
[-] deepest-nesting-target.js [edit]
[-] can-place-dep.js [edit]
[-] edge.js [edit]
[-] link.js [edit]
[-] diff.js [edit]
[-] audit-report.js [edit]
[-] consistent-resolve.js [edit]
[-] calc-dep-flags.js [edit]
[-] tree-check.js [edit]
[-] index.js [edit]
[-] vuln.js [edit]
[-] optional-set.js [edit]
[-] realpath.js [edit]
[-] add-rm-pkg-deps.js [edit]
[-] inventory.js [edit]
[-] peer-entry-sets.js [edit]
[-] get-workspace-nodes.js [edit]
[-] case-insensitive-map.js [edit]
[-] retire-path.js [edit]
[-] query-selector-all.js [edit]
[-] override-resolves.js [edit]
[-] node.js [edit]
[-] shrinkwrap.js [edit]
[-] signals.js [edit]
[-] dep-valid.js [edit]
[+] arborist
[-] version-from-tgz.js [edit]