feat: migrate core to use new async DAGNode interface

package.json

@@ -40,15 +40,15 @@
   },
   "homepage": "https://github.com/ipfs/js-ipfs#readme",
   "devDependencies": {
-    "aegir": "^8.0.1",
+    "aegir": "^8.1.2",
     "buffer-loader": "0.0.1",
     "chai": "^3.5.0",
     "execa": "^0.5.0",
     "expose-loader": "^0.7.1",
     "form-data": "^2.0.0",
     "fs-pull-blob-store": "^0.4.1",
     "gulp": "^3.9.1",
-    "interface-ipfs-core": "^0.15.0",
+    "interface-ipfs-core": "^0.16.6",
     "left-pad": "^1.1.1",
     "lodash": "^4.15.0",
     "ncp": "^2.0.0",
@@ -70,14 +70,15 @@
     "glob": "^7.0.6",
     "hapi": "^15.0.3",
     "idb-pull-blob-store": "^0.5.1",
-    "ipfs-api": "^9.0.0",
+    "ipfs-api": "^10.0.0",
     "ipfs-bitswap": "^0.7.0",
     "ipfs-block": "^0.4.0",
     "ipfs-block-service": "^0.6.0",
     "ipfs-multipart": "^0.1.0",
     "ipfs-repo": "^0.10.0",
     "ipfs-unixfs": "^0.1.4",
-    "ipfs-unixfs-engine": "^0.11.3",
+    "ipfs-unixfs-engine": "^0.12.0",
+    "ipld-resolver": "^0.1.1",
     "isstream": "^0.1.2",
     "joi": "^9.0.4",
     "libp2p-ipfs": "^0.14.1",
@@ -97,7 +98,7 @@
     "peer-id": "^0.7.0",
     "peer-info": "^0.7.1",
     "promisify-es6": "^1.0.1",
-    "pull-file": "^1.1ed.0",
+    "pull-file": "^1.0.0",
     "pull-paramap": "^1.1.6",
     "pull-pushable": "^2.0.1",
     "pull-sort": "^1.0.0",

src/core/components/files.js

@@ -32,7 +32,7 @@ module.exports = function files (self) {
 
     add: promisify((data, callback) => {
       if (!callback || typeof callback !== 'function') {
-        callback = function noop () {}
+        callback = noop
       }
 
       pull(
@@ -97,17 +97,22 @@ module.exports = function files (self) {
   }
 }
 
-function prepareFile (self, file, cb) {
+function prepareFile (self, file, callback) {
   const bs58mh = multihashes.toB58String(file.multihash)
   self.object.get(file.multihash, (err, node) => {
     if (err) {
-      return cb(err)
+      return callback(err)
     }
 
-    cb(null, {
-      path: file.path || bs58mh,
-      hash: bs58mh,
-      size: node.size()
+    node.size((err, size) => {
+      if (err) {
+        return callback(err)
+      }
+      callback(null, {
+        path: file.path || bs58mh,
+        hash: bs58mh,
+        size: size
+      })
     })
   })
 }
@@ -147,3 +152,5 @@ function normalizeContent (content) {
     return data
   })
 }
+
+function noop () {}