feat(index): add hashAlgorithm and format insert ret val

Author: zkat

Diff for: lib/entry-index.js

@@ -38,6 +38,7 @@ function insert (cache, key, digest, opts) {
           const entry = {
             key: key,
             digest: digest,
+            hashAlgorithm: opts.hashAlgorithm,
             time: +(new Date()),
             metadata: opts.metadata
           }
@@ -63,7 +64,11 @@ function insert (cache, key, digest, opts) {
         })
       })
     })
-  )).then(() => fixOwner.chownr(bucket, opts.uid, opts.gid))
+  )).then(entry => {
+    return fixOwner.chownr(bucket, opts.uid, opts.gid).then(() => {
+      return formatEntry(cache, entry)
+    })
+  })
 }
 
 module.exports.find = find
@@ -173,6 +178,7 @@ function formatEntry (cache, entry) {
   return {
     key: entry.key,
     digest: entry.digest,
+    hashAlgorithm: entry.hashAlgorithm,
     path: contentPath(cache, entry.digest),
     time: entry.time,
     metadata: entry.metadata