1 files changed, 27 insertions, 0 deletions
diff --git a/deps/npm/lib/install/action/prepare.js b/deps/npm/lib/install/action/prepare.js
new file mode 100644
index 0000000000..771a2a9399
--- /dev/null
+++ b/deps/npm/lib/install/action/prepare.js
@@ -0,0 +1,27 @@
+'use strict'
+var chain = require('slide').chain
+var lifecycle = require('../../utils/lifecycle.js')
+var packageId = require('../../utils/package-id.js')
+var prepublishWarning = require('../../utils/warn-deprecated.js')('prepublish-on-install')
+var moduleStagingPath = require('../module-staging-path.js')
+
+module.exports = function (staging, pkg, log, next) {
+  log.silly('prepublish', packageId(pkg))
+  // TODO: for `npm@5`, change the behavior and remove this warning.
+  // see https://github.com/npm/npm/issues/10074 for details
+  if (pkg.package && pkg.package.scripts && pkg.package.scripts.prepublish) {
+    prepublishWarning([
+      'As of npm@5, `prepublish` scripts will run only for `npm publish`.',
+      '(In npm@4 and previous versions, it also runs for `npm install`.)',
+      'See the deprecation note in `npm help scripts` for more information.'
+    ])
+  }
+  var buildpath = moduleStagingPath(staging, pkg)
+  chain(
+    [
+      [lifecycle, pkg.package, 'prepublish', buildpath, false, false],
+      [lifecycle, pkg.package, 'prepare', buildpath, false, false]
+    ],
+    next
+  )
+}