output + linting

core/commands/add.go

@@ -26,7 +26,7 @@ func Add(n *core.IpfsNode, args []string, opts map[string]interface{}, out io.Wr
 		nd, err := AddPath(n, path, depth)
 		if err != nil {
 			if err == ErrDepthLimitExceeded && depth == 1 {
-				err = errors.New("use -r to recursively add directories.")
+				err = errors.New("use -r to recursively add directories")
 			}
 			return fmt.Errorf("addFile error: %v", err)
 		}

core/core.go

@@ -207,7 +207,8 @@ func initConnections(cfg *config.Config, route *dht.IpfsDHT) {
 	}
 }
 
+// PinDagNode ensures a given node is stored persistently locally.
 func (n *IpfsNode) PinDagNode(nd *merkledag.Node) error {
-	u.POut("Pinning node. Currently No-Op\n")
+	u.DOut("Pinning node. Currently No-Op\n")
 	return nil
 }

merkledag/merkledag.go

@@ -130,7 +130,6 @@ func (n *DAGService) AddRecursive(nd *Node) error {
 	}
 
 	for _, link := range nd.Links {
-		fmt.Println("Adding link.")
 		if link.Node == nil {
 			panic("Why does this node have a nil link?\n")
 		}

util/util.go

@@ -31,6 +31,7 @@ var ErrNotFound = errors.New("Error: Not Found.")
 // Key is a string representation of multihash for use with maps.
 type Key string
 
+// Pretty returns Key in a b58 encoded string
 func (k Key) Pretty() string {
 	return b58.Encode([]byte(k))
 }
@@ -80,6 +81,7 @@ func DOut(format string, a ...interface{}) {
 	}
 }
 
+// ExpandPathnames takes a set of paths and turns them into absolute paths
 func ExpandPathnames(paths []string) ([]string, error) {
 	var out []string
 	for _, p := range paths {