WIP support support specify hash alg

Author: alanshaw

src/files/add.js

@@ -21,7 +21,27 @@ module.exports = (send) => {
       return callback(new Error('"files" must be a buffer, readable stream, or array of objects'))
     }
 
-    const request = { path: 'add', files: files, qs: opts }
+    const qs = {}
+
+    if (opts['cid-version'] != null) {
+      qs['cid-version'] = opts['cid-version']
+    } else if (opts.cidVersion != null) {
+      qs['cid-version'] = opts.cidVersion
+    }
+
+    if (opts['raw-leaves'] != null) {
+      qs['raw-leaves'] = opts['raw-version']
+    } else if (opts.rawLeaves != null) {
+      qs['raw-leaves'] = opts.rawLeaves
+    }
+
+    if (opts.hash != null) {
+      qs.hash = opts.hash
+    } else if (opts.hashAlg != null) {
+      qs.hash = opts.hashAlg
+    }
+
+    const request = { path: 'add', files: files, qs: qs }
 
     // Transform the response stream to DAGNode values
     const transform = (res, callback) => DAGNodeStream.streamToValue(send, res, callback)