feat: add util.serialize, util.deserialize and util.cid

Author: daviddias

package.json

@@ -40,6 +40,8 @@
     "babel-runtime": "^6.6.1",
     "bs58": "^3.0.0",
     "cbor": "^1.0.4",
+    "cbor-sync": "^1.0.2",
+    "cids": "^0.1.1",
     "lodash.clonedeep": "^4.3.2",
     "lodash.defaults": "^4.0.1",
     "lodash.includes": "^4.1.3",
@@ -49,7 +51,7 @@
     "nofilter": "0.0.2"
   },
   "devDependencies": {
-    "aegir": "^3.0.4",
+    "aegir": "8.1.2",
     "chai": "^3.5.0",
     "pre-commit": "^1.1.3"
   },

src/cbor.js

@@ -1,12 +1,5 @@
 'use strict'
 
-const cbor = require('./cbor')
-const multihash = require('./multihash')
-
-exports = module.exports
-
-exports.LINK_TAG = cbor.LINK_TAG
-exports.LINK_SYMBOL = cbor.LINK_SYMBOL
-exports.marshal = cbor.marshal
-exports.unmarshal = cbor.unmarshal
-exports.multihash = multihash
+exports.DAGNode = require('./dag-node.js')
+exports.util = require('./util.js')
+exports.resolver = require('./resolver.js')

src/dag-node.js

@@ -0,0 +1,28 @@
+'use strict'
+
+exports = module.exports
+
+exports.multicodec = 'dag-cbor'
+
+/*
+ * resolve: receives a path and a block and returns the value on path,
+ * throw if not possible. `block` is an IPFS Block instance (contains data+key)
+ */
+exports.resolve = (block, path) => {
+}
+
+/*
+ * tree: returns a flattened array with paths: values of the project. options
+ * are option (i.e. nestness)
+ */
+exports.tree = (block, options) => {
+  if (!options) {
+    options = {}
+  }
+}
+
+// TODO recheck this API
+/*
+ * patch: modifies or adds value on path, yields a new block with that change
+ */
+exports.patch = (block, path, value) => {}

src/index.js

@@ -0,0 +1,22 @@
+'use strict'
+
+const cbor = require('cbor-sync')
+const multihashing = require('multihashing')
+const CID = require('cids')
+const resolver = require('./resolver')
+
+exports = module.exports
+
+exports.serialize = (dagNode) => {
+  return cbor.encode(dagNode)
+}
+
+exports.deserialize = (data) => {
+  return cbor.decode(data)
+}
+
+exports.cid = (dagNode) => {
+  const serialized = exports.serialize(dagNode)
+  const mh = multihashing(serialized, 'sha2-256')
+  return new CID(1, resolver.multicodec, mh)
+}