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User : drazizulhaq

Name	Size	Permission	Date
action	[ DIR ]	drwxr-xr-x	2024-12-16 14:12
access-error.js	202 B	-rw-r--r--	2021-03-10 14:36
actions.js	5.52 KB	-rw-r--r--	2021-03-10 14:36
and-add-parent-to-errors.js	375 B	-rw-r--r--	2021-03-10 14:36
and-finish-tracker.js	360 B	-rw-r--r--	2021-03-10 14:36
and-ignore-errors.js	204 B	-rw-r--r--	2021-03-10 14:36
audit.js	8.24 KB	-rw-r--r--	2021-03-10 14:36
check-permissions.js	1.85 KB	-rw-r--r--	2021-03-10 14:36
copy-tree.js	770 B	-rw-r--r--	2021-03-10 14:36
decompose-actions.js	2.18 KB	-rw-r--r--	2021-03-10 14:36
deps.js	30.32 KB	-rw-r--r--	2021-03-10 14:36
diff-trees.js	9.12 KB	-rw-r--r--	2021-03-10 14:36
exists.js	775 B	-rw-r--r--	2021-03-10 14:36
flatten-tree.js	1021 B	-rw-r--r--	2021-03-10 14:36
fund.js	1.28 KB	-rw-r--r--	2021-03-10 14:36
get-requested.js	635 B	-rw-r--r--	2021-03-10 14:36
has-modern-meta.js	702 B	-rw-r--r--	2021-03-10 14:36
inflate-bundled.js	628 B	-rw-r--r--	2021-03-10 14:36
inflate-shrinkwrap.js	8.87 KB	-rw-r--r--	2021-03-10 14:36
is-dev-dep.js	175 B	-rw-r--r--	2021-03-10 14:36
is-extraneous.js	618 B	-rw-r--r--	2021-03-10 14:36
is-fs-access-available.js	763 B	-rw-r--r--	2021-03-10 14:36
is-only-dev.js	1.24 KB	-rw-r--r--	2021-03-10 14:36
is-only-optional.js	674 B	-rw-r--r--	2021-03-10 14:36
is-opt-dep.js	185 B	-rw-r--r--	2021-03-10 14:36
is-prod-dep.js	172 B	-rw-r--r--	2021-03-10 14:36
module-staging-path.js	259 B	-rw-r--r--	2021-03-10 14:36
mutate-into-logical-tree.js	4.52 KB	-rw-r--r--	2021-03-10 14:36
node.js	1.85 KB	-rw-r--r--	2021-03-10 14:36
read-shrinkwrap.js	3.67 KB	-rw-r--r--	2021-03-10 14:36
realize-shrinkwrap-specifier.js	621 B	-rw-r--r--	2021-03-10 14:36
report-optional-failure.js	1.02 KB	-rw-r--r--	2021-03-10 14:36
save.js	5.91 KB	-rw-r--r--	2021-03-10 14:36
update-package-json.js	1.87 KB	-rw-r--r--	2021-03-10 14:36
validate-args.js	2.73 KB	-rw-r--r--	2021-03-10 14:36
validate-tree.js	3.1 KB	-rw-r--r--	2021-03-10 14:36
writable.js	1 KB	-rw-r--r--	2021-03-10 14:36

Rename

'use strict'
module.exports = isOnlyDev

const moduleName = require('../utils/module-name.js')
const isDevDep = require('./is-dev-dep.js')
const isProdDep = require('./is-prod-dep.js')

// Returns true if the module `node` is only required direcctly as a dev
// dependency of the top level or transitively _from_ top level dev
// dependencies.
// Dual mode modules (that are both dev AND prod) should return false.
function isOnlyDev (node, seen) {
  if (!seen) seen = new Set()
  return node.requiredBy.length && node.requiredBy.every(andIsOnlyDev(moduleName(node), seen))
}

// There is a known limitation with this implementation: If a dependency is
// ONLY required by cycles that are detached from the top level then it will
// ultimately return true.
//
// This is ok though: We don't allow shrinkwraps with extraneous deps and
// these situation is caught by the extraneous checker before we get here.
function andIsOnlyDev (name, seen) {
  return function (req) {
    const isDev = isDevDep(req, name)
    const isProd = isProdDep(req, name)
    if (req.isTop) {
      return isDev && !isProd
    } else {
      if (seen.has(req)) return true
      seen.add(req)
      const result = isOnlyDev(req, seen)
      seen.delete(req)
      return result
    }
  }
}