FM / lib

/usr/local/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/

/usr/local/lib/node_modules/npm/node_modules/@npmcli/arborist/lib

Name	Size	Mode	Actions
arborist/	-	0755	rm
add-rm-pkg-deps.js	5008	0644	edit dl rm
audit-report.js	9619	0644	edit dl rm
calc-dep-flags.js	3359	0644	edit dl rm
can-place-dep.js	14273	0644	edit dl rm
case-insensitive-map.js	1239	0644	edit dl rm
consistent-resolve.js	1247	0644	edit dl rm
debug.js	1282	0644	edit dl rm
deepest-nesting-target.js	691	0644	edit dl rm
dep-valid.js	5128	0644	edit dl rm
diff.js	10327	0644	edit dl rm
edge.js	9988	0644	edit dl rm
from-path.js	1095	0644	edit dl rm
gather-dep-set.js	1286	0644	edit dl rm
index.js	273	0644	edit dl rm
inventory.js	3321	0644	edit dl rm
isolated-classes.js	2717	0644	edit dl rm
link.js	3114	0644	edit dl rm
node.js	49828	0644	edit dl rm
optional-set.js	1201	0644	edit dl rm
override-resolves.js	225	0644	edit dl rm
override-set.js	8773	0644	edit dl rm
packument-cache.js	2557	0644	edit dl rm
peer-entry-sets.js	2632	0644	edit dl rm
place-dep.js	20250	0644	edit dl rm
printable.js	5222	0644	edit dl rm
query-selector-all.js	30361	0644	edit dl rm
realpath.js	2655	0644	edit dl rm
relpath.js	136	0644	edit dl rm
reset-dep-flags.js	542	0644	edit dl rm
retire-path.js	501	0644	edit dl rm
shrinkwrap.js	37721	0644	edit dl rm
signal-handling.js	2245	0644	edit dl rm
signals.js	1381	0644	edit dl rm
spec-from-lock.js	874	0644	edit dl rm
tracker.js	2991	0644	edit dl rm
tree-check.js	4142	0644	edit dl rm
version-from-tgz.js	1488	0644	edit dl rm
vuln.js	5958	0644	edit dl rm
yarn-lock.js	10813	0644	edit dl rm

Edit: /usr/local/lib/node_modules/npm/node_modules/@npmcli/arborist/lib/optional-set.js (1201B)

// 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 => {
  // 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 don't have dependents outside the set.
  return gatherDepSet(set, edge => !set.has(edge.to))
}

module.exports = optionalSet

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