monads: Hide 'derivation-expression' and 'lower-inputs'.

* guix/monads.scm: Unexport 'lower-inputs' and 'derivation-expression'.
  (text-file*): Add comment about the switch to 'gexp->derivation'.
  (lower-inputs): Add comment about its doom.
  (derivation-expression): Likewise.
* guix/gexp.scm (lower-inputs*): Rename to...
  (lower-inputs): ... this.  Update callers.
* tests/monads.scm (derivation-expression): New procedure.
* doc/guix.texi (The Store Monad): Use 'gexp->derivation' instead of
  'derivation-expression'.  Remove documentation of
  'derivation-expression'.
* guix/ui.scm (read/eval): Use THE-ROOT-MODULE so that macros are
  properly expanded.
* tests/guix-build.sh: Use 'gexp->derivation' instead of
  'derivation-expression'.monads: Hide 'derivation-expression' and 'lower-inputs'.

1 files changed, 4 insertions, 3 deletions

diff --git a/tests/guix-build.sh b/tests/guix-build.sh
index d66e132c1f..e0c774d055 100644
--- a/tests/guix-build.sh
+++ b/tests/guix-build.sh
@@ -1,5 +1,5 @@
 # GNU Guix --- Functional package management for GNU
-# Copyright © 2012, 2013 Ludovic Courtès <ludo@gnu.org>
+# Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
 #
 # This file is part of GNU Guix.
 #
@@ -75,7 +75,8 @@ then false; else true; fi
 
 # Invoking a monadic procedure.
 guix build -e "(begin
-                 (use-modules (guix monads) (guix utils))
+                 (use-modules (guix gexp))
                  (lambda ()
-                   (derivation-expression \"test\" '(mkdir %output))))" \
+                   (gexp->derivation \"test\"
+                                     (gexp (mkdir (ungexp output))))))" \
    --dry-run