Don't guess attachments dirname, use interface for it

1 files changed, 1 insertions, 2 deletions

diff --git a/jt b/jt
index 42ea0da..c1d292f 100755
--- a/jt
+++ b/jt
@@ -159,8 +159,7 @@ class FinishCommand(Command):
     def run(self, args):
         drafts_dir = DraftsDirectory(self._app.drafts_dir())
         draft_id, draft_mdwn = self._app.choose_draft(drafts_dir, args)
-        draft_attch, ext = os.path.splitext(draft_mdwn)
-        assert ext == '.mdwn'
+        draft_attch = drafts_dir.get_draft_attachments_dirname(draft_id)
 
         pub_attch = os.path.join(
             self.published_dir(), self.published_basename(draft_mdwn))