1 files changed, 12 insertions, 0 deletions
diff --git a/deps/npm/node_modules/cacache/lib/content/read.js b/deps/npm/node_modules/cacache/lib/content/read.js
index 14ca7d905d..b09ad5cb40 100644
--- a/deps/npm/node_modules/cacache/lib/content/read.js
+++ b/deps/npm/node_modules/cacache/lib/content/read.js
@@ -52,6 +52,18 @@ function readStream (cache, integrity, opts) {
   return stream
 }
 
+if (fs.copyFile) {
+  module.exports.copy = copy
+}
+function copy (cache, integrity, dest, opts) {
+  opts = opts || {}
+  return pickContentSri(cache, integrity).then(content => {
+    const sri = content.sri
+    const cpath = contentPath(cache, sri)
+    return fs.copyFileAsync(cpath, dest).then(() => content.size)
+  })
+}
+
 module.exports.hasContent = hasContent
 function hasContent (cache, integrity) {
   if (!integrity) { return BB.resolve(false) }