tests/migrations: Convert to Scheme and re-enable.

* configure.ac: Re-enable.
* tests/Makefile.am: Likewise.
* tests/migrations/Makefile.am (TESTS): Use Scheme tests.
* tests/migrations/common.scm: New file.
* tests/migrations/extended-private-key-format.scm: Likewise.
* tests/migrations/from-classic.scm: Likewise.
* tests/migrations/extended-private-key-format.test: Drop file.
* tests/migrations/from-classic.test: Drop file.

Signed-off-by: Justus Winter <justus@g10code.com>

tests/migrations/common.scm

@@ -0,0 +1,40 @@
+;; Copyright (C) 2016 g10 Code GmbH
+;;
+;; This file is part of GnuPG.
+;;
+;; GnuPG is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 3 of the License, or
+;; (at your option) any later version.
+;;
+;; GnuPG is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, see <http://www.gnu.org/licenses/>.
+
+(if (string=? "" (getenv "srcdir"))
+    (error "not called from make"))
+
+(setenv "GNUPGHOME" "" #t)
+
+(define (qualify executable)
+  (string-append executable (getenv "EXEEXT")))
+
+;; We may not use a relative name for gpg-agent.
+(define GPG-AGENT (qualify (string-append (getcwd) "/../../agent/gpg-agent")))
+(define GPG `(,(qualify (string-append (getcwd) "/../../g10/gpg"))
+	      --no-permission-warning --no-greeting
+	      --no-secmem-warning --batch
+	      ,(string-append "--agent-program=" GPG-AGENT
+			      "|--debug-quick-random")))
+
+(define (dearmor source-name sink-name)
+  (pipe:do
+   (pipe:open source-name (logior O_RDONLY O_BINARY))
+   (pipe:spawn `(,@GPG --dearmor))
+   (pipe:write-to sink-name
+		  (logior O_WRONLY O_CREAT O_BINARY)
+		  #o600)))