Switch to bsdtar for unpackaging a box

lib/vagrant/box_collection.rb

@@ -1,9 +1,10 @@
 require "digest/sha1"
 require "tmpdir"
 
-require "archive/tar/minitar"
 require "log4r"
 
+require "vagrant/util/subprocess"
+
 module Vagrant
   # Represents a collection a boxes found on disk. This provides methods
   # for accessing/finding individual boxes, adding new boxes, or deleting
@@ -89,11 +90,10 @@ module Vagrant
 
         # Extract the box into a temporary directory.
         @logger.debug("Unpacking box into temporary directory: #{temp_dir}")
-        begin
-          Archive::Tar::Minitar.unpack(path.to_s, temp_dir.to_s)
-        rescue SystemCallError
-          raise Errors::BoxUnpackageFailure
-        end
+        result = Util::Subprocess.execute(
+          "bsdtar", "-v", "-x", "-C", temp_dir.to_s, "-f", path.to_s)
+        raise Errors::BoxUnpackageFailure, :output => result.stderr.to_s \
+          if result.exit_code != 0
 
         # If we get a V1 box, we want to update it in place
         if v1_box?(temp_dir)

templates/locales/en.yml

@@ -669,8 +669,11 @@ en:
       box:
         unpackage:
           untar_failure: |-
-            The box failed to untar properly. Please verify that the box
-            file you're trying to add is not corrupted and try again.
+            The box failed to unpackage properly. Please verify that the box
+            file you're trying to add is not corrupted and try again. The
+            output from attempting to unpackage (if any):
+
+            %{output}
           already_exists: |-
             The box you're attempting to add already exits: