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Name	Size	Permission	Date
arborist	[ DIR ]	drwxr-xr-x	2024-07-10 10:56
add-rm-pkg-deps.js	4.89 KB	-rw-r--r--	2023-11-23 07:39
audit-report.js	11.99 KB	-rw-r--r--	2023-11-23 07:39
calc-dep-flags.js	3.07 KB	-rw-r--r--	2023-11-23 07:39
can-place-dep.js	13.94 KB	-rw-r--r--	2023-11-23 07:39
case-insensitive-map.js	1.32 KB	-rw-r--r--	2023-11-23 07:39
consistent-resolve.js	1.29 KB	-rw-r--r--	2023-11-23 07:39
debug.js	1.2 KB	-rw-r--r--	2023-11-23 07:39
deepest-nesting-target.js	691 B	-rw-r--r--	2023-11-23 07:39
dep-valid.js	4.94 KB	-rw-r--r--	2023-11-23 07:39
diff.js	9.57 KB	-rw-r--r--	2023-11-23 07:39
edge.js	6.83 KB	-rw-r--r--	2023-11-23 07:39
from-path.js	1.04 KB	-rw-r--r--	2023-11-23 07:39
gather-dep-set.js	1.26 KB	-rw-r--r--	2023-11-23 07:39
get-workspace-nodes.js	863 B	-rw-r--r--	2023-11-23 07:39
index.js	353 B	-rw-r--r--	2023-11-23 07:39
inventory.js	3.2 KB	-rw-r--r--	2023-11-23 07:39
link.js	3 KB	-rw-r--r--	2023-11-23 07:39
node.js	43.21 KB	-rw-r--r--	2023-11-23 07:39
optional-set.js	1.32 KB	-rw-r--r--	2023-11-23 07:39
override-resolves.js	230 B	-rw-r--r--	2023-11-23 07:39
override-set.js	2.42 KB	-rw-r--r--	2023-11-23 07:39
peer-entry-sets.js	2.57 KB	-rw-r--r--	2023-11-23 07:39
place-dep.js	19.7 KB	-rw-r--r--	2023-11-23 07:39
printable.js	5.09 KB	-rw-r--r--	2023-11-23 07:39
query-selector-all.js	26.17 KB	-rw-r--r--	2023-11-23 07:39
realpath.js	2.58 KB	-rw-r--r--	2023-11-23 07:39
relpath.js	131 B	-rw-r--r--	2023-11-23 07:39
reset-dep-flags.js	638 B	-rw-r--r--	2023-11-23 07:39
retire-path.js	491 B	-rw-r--r--	2023-11-23 07:39
shrinkwrap.js	36.6 KB	-rw-r--r--	2023-11-23 07:39
signal-handling.js	2.19 KB	-rw-r--r--	2023-11-23 07:39
signals.js	1.35 KB	-rw-r--r--	2023-11-23 07:39
spec-from-lock.js	874 B	-rw-r--r--	2023-11-23 07:39
tracker.js	3.29 KB	-rw-r--r--	2023-11-23 07:39
tree-check.js	4.02 KB	-rw-r--r--	2023-11-23 07:39
version-from-tgz.js	1.45 KB	-rw-r--r--	2023-11-23 07:39
vuln.js	5.93 KB	-rw-r--r--	2023-11-23 07:39
yarn-lock.js	10.58 KB	-rw-r--r--	2023-11-23 07:39

Rename

// 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