=== modified file 'common.zsh'
--- common.zsh	2017-12-13 01:54:02 +0000
+++ common.zsh	2017-12-13 01:49:47 +0000
@@ -207,17 +207,11 @@
 
 finish_info() {
 	local -a info
+	eval $(getvars build_dir filename sha256sum)
 	info=( finished )
-
-	(($+vars[build_dir])) && eval $(getvars build_dir)
 	(($+build_dir)) && info+=( build_dir=$build_dir )
-
-	(($+vars[filename])) && eval $(getvars filename)
 	(($+filename)) && info+=( filename=$filename )
-
-	(($+vars[sha256sum])) && eval $(getvars sha256sum)
 	(($+sha256sum)) && info+=( sha256sum=$sha256sum )
-
 	info $info
 }