services: configuration: Show default values of list types.

* doc/guix.texi (Messaging Services): Regenerate it.
* gnu/services/configuration.scm (show-default?): Check VAL rather than DEFAULT.
* gnu/services/messaging.scm (show-default?): Check VAL rather than DEFAULT.
(prosody-configuration)[modules-enabled]: Remove default value from docstring.

3 files changed, 10 insertions, 6 deletions

diff --git a/doc/guix.texi b/doc/guix.texi
index 2a68256823..17a8f4df47 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -13991,8 +13991,9 @@ Defaults to @samp{#f}.
 @deftypevr {@code{prosody-configuration} parameter} module-list modules-enabled
 This is the list of modules Prosody will load on startup.  It looks for
 @code{mod_modulename.lua} in the plugins folder, so make sure that exists too.
-Documentation on modules can be found at: @url{http://prosody.im/doc/modules}.
-Defaults to @samp{%default-modules-enabled}.
+Documentation on modules can be found at:
+@url{http://prosody.im/doc/modules}.
+Defaults to @samp{("roster" "saslauth" "tls" "dialback" "disco" "carbons" "private" "blocklist" "vcard" "version" "uptime" "time" "ping" "pep" "register" "admin_adhoc")}.
 @end deftypevr
 
 @deftypevr {@code{prosody-configuration} parameter} string-list modules-disabled
@@ -14096,6 +14097,7 @@ Defaults to @samp{#f}.
 @deftypevr {@code{prosody-configuration} parameter} string-list disable-sasl-mechanisms
 Set of mechanisms that will never be offered.  See
 @url{https://prosody.im/doc/modules/mod_saslauth}.
+Defaults to @samp{("DIGEST-MD5")}.
 @end deftypevr
 
 @deftypevr {@code{prosody-configuration} parameter} boolean s2s-require-encryption?
@@ -14263,6 +14265,7 @@ Hostname of the component.
 
 @deftypevr {@code{prosody-configuration} parameter} non-negative-integer-list component-ports
 Port(s) Prosody listens on for component connections.
+Defaults to @samp{(5347)}.
 @end deftypevr
 
 @deftypevr {@code{prosody-configuration} parameter} string component-interface
diff --git a/gnu/services/configuration.scm b/gnu/services/configuration.scm
index 0a2219e743..c45340f02f 100644
--- a/gnu/services/configuration.scm
+++ b/gnu/services/configuration.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2015 Andy Wingo <wingo@igalia.com>
 ;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
+;;; Copyright © 2017 Clément Lassieur <clement@lassieur.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -165,7 +166,7 @@
                                (configuration-field-default-value-thunk f)
                                (lambda _ '%invalid))))
                 (define (show-default? val)
-                  (or (string? default) (number? default) (boolean? default)
+                  (or (string? val) (number? val) (boolean? val)
                       (and (symbol? val) (not (eq? val '%invalid)))
                       (and (list? val) (and-map show-default? val))))
                 `(deftypevr (% (category
diff --git a/gnu/services/messaging.scm b/gnu/services/messaging.scm
index c75c715850..d57a7562a2 100644
--- a/gnu/services/messaging.scm
+++ b/gnu/services/messaging.scm
@@ -354,8 +354,8 @@ Example: @code{(admins '(\"user1@@example.com\" \"user2@@example.net\"))}"
      (module-list %default-modules-enabled)
      "This is the list of modules Prosody will load on startup.  It looks for
 @code{mod_modulename.lua} in the plugins folder, so make sure that exists too.
-Documentation on modules can be found at: @url{http://prosody.im/doc/modules}.
-Defaults to @samp{%default-modules-enabled}."
+Documentation on modules can be found at:
+@url{http://prosody.im/doc/modules}."
      common)
 
     (modules-disabled
@@ -722,7 +722,7 @@ See also @url{http://prosody.im/doc/modules/mod_muc}."
                                      (display c))
                                    str))))
             (define (show-default? val)
-              (or (string? default) (number? default) (boolean? default)
+              (or (string? val) (number? val) (boolean? val)
                   (and (list? val) (and-map show-default? val))))
             (format #t "@deftypevr {@code{~a} parameter} ~a ~a\n~a\n"
                     configuration-name field-type field-name field-docs)