address concerns about user interface with new Path type

path/path.go

@@ -3,12 +3,24 @@ package path
 import (
 	"path"
 	"strings"
+
+	u "github.com/jbenet/go-ipfs/util"
 )
 
 // TODO: debate making this a private struct wrapped in a public interface
 // would allow us to control creation, and cache segments.
 type Path string
 
+// FromString safely converts a string type to a Path type
+func FromString(s string) Path {
+	return Path(s)
+}
+
+// FromKey safely converts a Key type to a Path type
+func FromKey(k u.Key) Path {
+	return Path(k.String())
+}
+
 func (p Path) Segments() []string {
 	cleaned := path.Clean(string(p))
 	segments := strings.Split(cleaned, "/")