inflate-shrinkwrap: Check link equivalency for shrinkwraped file specs

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/install/inflate-shrinkwrap.js b/lib/install/inflate-shrinkwrap.js
index df83155e1..0a9e1c3c4 100644
--- a/lib/install/inflate-shrinkwrap.js
+++ b/lib/install/inflate-shrinkwrap.js
@@ -12,6 +12,7 @@ const normalizePackageData = require('normalize-package-data')
 const npm = require('../npm.js')
 const realizeShrinkwrapSpecifier = require('./realize-shrinkwrap-specifier.js')
 const validate = require('aproba')
+const path = require('path')
 
 module.exports = function (tree, swdeps, finishInflating) {
   if (!npm.config.get('shrinkwrap')) return finishInflating()
@@ -166,6 +167,8 @@ function childIsEquivalent (sw, requested, child) {
   if (!child) return false
   if (child.fromShrinkwrap) return true
   if (sw.integrity && child.package._integrity === sw.integrity) return true
+  if (child.isLink && requested.type === 'directory') return path.relative(child.realpath, requested.fetchSpec) === ''
+
   if (sw.resolved) return child.package._resolved === sw.resolved
   if (!requested.registry && sw.from) return child.package._from === sw.from
   if (!requested.registry && child.package._resolved) return sw.version === child.package._resolved