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services: Factorize configuration abstraction. 

* gnu/services/mail.scm and gnu/services/cups.scm (&configuration-error)
(configuration-error, configuration-field-error)
(configuration-missing-field, configuration-field, serialize-configuration)
(validate-configuration, define-configuration, uglify-field-name)
(serialize-field, serialize-package, serialize-string)
(serialize-space-separated-string-list, space-separated-string-list?)
(serialize-file-name, file-name?, serialize-field-name)
(generate-documentation): Move duplicate code...
* gnu/services/configuration.scm: ...to this new file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add configuration.scm.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Julien Lepiller 2016-11-23 21:43:42 +01:00 committed by Ludovic Courtès
parent cf3678df6e
commit 5305ed2002
No known key found for this signature in database
GPG Key ID: 090B11993D9AEBB5
4 changed files with 233 additions and 336 deletions
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1
gnu/local.mk
View File

@ -399,6 +399,7 @@ GNU_SYSTEM_MODULES = \
%D%/services/admin.scm \
%D%/services/avahi.scm \
%D%/services/base.scm \
%D%/services/configuration.scm \
%D%/services/cups.scm \
%D%/services/databases.scm \
%D%/services/dbus.scm \

205
gnu/services/configuration.scm Normal file
View File

@ -0,0 +1,205 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015 Andy Wingo <wingo@igalia.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix 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.
;;;
;;; GNU Guix 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 GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu services configuration)
#:use-module (guix packages)
#:use-module (guix records)
#:use-module (guix gexp)
#:autoload (texinfo) (texi-fragment->stexi)
#:autoload (texinfo serialize) (stexi->texi)
#:use-module (ice-9 match)
#:use-module ((srfi srfi-1) #:select (append-map))
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:export (configuration-field
configuration-field-name
configuration-missing-field
configuration-field-error
serialize-configuration
define-configuration
validate-configuration
generate-documentation
serialize-field
serialize-string
serialize-name
serialize-space-separated-string-list
space-separated-string-list?
serialize-file-name
file-name?
serialize-boolean
serialize-package))
;;; Commentary:
;;;
;;; Syntax for creating Scheme bindings to complex configuration files.
;;;
;;; Code:
(define-condition-type &configuration-error &error
configuration-error?)
(define (configuration-error message)
(raise (condition (&message (message message))
(&configuration-error))))
(define (configuration-field-error field val)
(configuration-error
(format #f "Invalid value for field ~a: ~s" field val)))
(define (configuration-missing-field kind field)
(configuration-error
(format #f "~a configuration missing required field ~a" kind field)))
(define-record-type* <configuration-field>
configuration-field make-configuration-field configuration-field?
(name configuration-field-name)
(type configuration-field-type)
(getter configuration-field-getter)
(predicate configuration-field-predicate)
(serializer configuration-field-serializer)
(default-value-thunk configuration-field-default-value-thunk)
(documentation configuration-field-documentation))
(define (serialize-configuration config fields)
(for-each (lambda (field)
((configuration-field-serializer field)
(configuration-field-name field)
((configuration-field-getter field) config)))
fields))
(define (validate-configuration config fields)
(for-each (lambda (field)
(let ((val ((configuration-field-getter field) config)))
(unless ((configuration-field-predicate field) val)
(configuration-field-error
(configuration-field-name field) val))))
fields))
(define-syntax define-configuration
(lambda (stx)
(define (id ctx part . parts)
(let ((part (syntax->datum part)))
(datum->syntax
ctx
(match parts
(() part)
(parts (symbol-append part
(syntax->datum (apply id ctx parts))))))))
(syntax-case stx ()
((_ stem (field (field-type def) doc) ...)
(with-syntax (((field-getter ...)
(map (lambda (field)
(id #'stem #'stem #'- field))
#'(field ...)))
((field-predicate ...)
(map (lambda (type)
(id #'stem type #'?))
#'(field-type ...)))
((field-serializer ...)
(map (lambda (type)
(id #'stem #'serialize- type))
#'(field-type ...))))
#`(begin
(define-record-type* #,(id #'stem #'< #'stem #'>)
#,(id #'stem #'% #'stem)
#,(id #'stem #'make- #'stem)
#,(id #'stem #'stem #'?)
(field field-getter (default def))
...)
(define #,(id #'stem #'stem #'-fields)
(list (configuration-field
(name 'field)
(type 'field-type)
(getter field-getter)
(predicate field-predicate)
(serializer field-serializer)
(default-value-thunk (lambda () def))
(documentation doc))
...))
(define-syntax-rule (stem arg (... ...))
(let ((conf (#,(id #'stem #'% #'stem) arg (... ...))))
(validate-configuration conf
#,(id #'stem #'stem #'-fields))
conf))))))))
(define (uglify-field-name field-name)
(let ((str (symbol->string field-name)))
(string-concatenate
(map string-titlecase
(string-split (if (string-suffix? "?" str)
(substring str 0 (1- (string-length str)))
str)
#\-)))))
(define (serialize-field field-name val)
(format #t "~a ~a\n" (uglify-field-name field-name) val))
(define (serialize-package field-name val)
#f)
(define (serialize-string field-name val)
(serialize-field field-name val))
(define (space-separated-string-list? val)
(and (list? val)
(and-map (lambda (x)
(and (string? x) (not (string-index x #\space))))
val)))
(define (serialize-space-separated-string-list field-name val)
(serialize-field field-name (string-join val " ")))
(define (file-name? val)
(and (string? val)
(string-prefix? "/" val)))
(define (serialize-file-name field-name val)
(serialize-string field-name val))
(define (serialize-boolean field-name val)
(serialize-string field-name (if val "yes" "no")))
;; A little helper to make it easier to document all those fields.
(define (generate-documentation documentation documentation-name)
(define (str x) (object->string x))
(define (generate configuration-name)
(match (assq-ref documentation configuration-name)
((fields . sub-documentation)
`((para "Available " (code ,(str configuration-name)) " fields are:")
,@(map
(lambda (f)
(let ((field-name (configuration-field-name f))
(field-type (configuration-field-type f))
(field-docs (cdr (texi-fragment->stexi
(configuration-field-documentation f))))
(default (catch #t
(configuration-field-default-value-thunk f)
(lambda _ '%invalid))))
(define (show-default? val)
(or (string? default) (number? default) (boolean? default)
(and (symbol? val) (not (eq? val '%invalid)))
(and (list? val) (and-map show-default? val))))
`(deftypevr (% (category
(code ,(str configuration-name)) " parameter")
(data-type ,(str field-type))
(name ,(str field-name)))
,@field-docs
,@(if (show-default? default)
`((para "Defaults to " (samp ,(str default)) "."))
'())
,@(append-map
generate
(or (assq-ref sub-documentation field-name) '())))))
fields)))))
(stexi->texi `(*fragment* . ,(generate documentation-name))))

180
gnu/services/cups.scm
View File

@ -19,6 +19,7 @@
(define-module (gnu services cups)
#:use-module (gnu services)
#:use-module (gnu services shepherd)
#:use-module (gnu services configuration)
#:use-module (gnu system shadow)
#:use-module (gnu packages admin)
#:use-module (gnu packages cups)
@ -26,16 +27,9 @@
#:use-module (guix packages)
#:use-module (guix records)
#:use-module (guix gexp)
#:use-module (texinfo)
#:use-module (texinfo serialize)
#:use-module (ice-9 match)
#:use-module ((srfi srfi-1) #:select (append-map))
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:export (&cups-configuation-error
cups-configuration-error?
cups-service-type
#:export (cups-service-type
cups-configuration
opaque-cups-configuration
@ -51,91 +45,6 @@
;;;
;;; Code:
(define-condition-type &cups-configuration-error &error
cups-configuration-error?)
(define (cups-error message)
(raise (condition (&message (message message))
(&cups-configuration-error))))
(define (cups-configuration-field-error field val)
(cups-error
(format #f "Invalid value for field ~a: ~s" field val)))
(define (cups-configuration-missing-field kind field)
(cups-error
(format #f "~a configuration missing required field ~a" kind field)))
(define-record-type* <configuration-field>
configuration-field make-configuration-field configuration-field?
(name configuration-field-name)
(type configuration-field-type)
(getter configuration-field-getter)
(predicate configuration-field-predicate)
(serializer configuration-field-serializer)
(default-value-thunk configuration-field-default-value-thunk)
(documentation configuration-field-documentation))
(define (serialize-configuration config fields)
(for-each (lambda (field)
((configuration-field-serializer field)
(configuration-field-name field)
((configuration-field-getter field) config)))
fields))
(define (validate-configuration config fields)
(for-each (lambda (field)
(let ((val ((configuration-field-getter field) config)))
(unless ((configuration-field-predicate field) val)
(cups-configuration-field-error
(configuration-field-name field) val))))
fields))
(define-syntax define-configuration
(lambda (stx)
(define (id ctx part . parts)
(let ((part (syntax->datum part)))
(datum->syntax
ctx
(match parts
(() part)
(parts (symbol-append part
(syntax->datum (apply id ctx parts))))))))
(syntax-case stx ()
((_ stem (field (field-type def) doc) ...)
(with-syntax (((field-getter ...)
(map (lambda (field)
(id #'stem #'stem #'- field))
#'(field ...)))
((field-predicate ...)
(map (lambda (type)
(id #'stem type #'?))
#'(field-type ...)))
((field-serializer ...)
(map (lambda (type)
(id #'stem #'serialize- type))
#'(field-type ...))))
#`(begin
(define-record-type* #,(id #'stem #'< #'stem #'>)
#,(id #'stem #'% #'stem)
#,(id #'stem #'make- #'stem)
#,(id #'stem #'stem #'?)
(field field-getter (default def))
...)
(define #,(id #'stem #'stem #'-fields)
(list (configuration-field
(name 'field)
(type 'field-type)
(getter field-getter)
(predicate field-predicate)
(serializer field-serializer)
(default-value-thunk (lambda () def))
(documentation doc))
...))
(define-syntax-rule (stem arg (... ...))
(let ((conf (#,(id #'stem #'% #'stem) arg (... ...))))
(validate-configuration conf
#,(id #'stem #'stem #'-fields))
conf))))))))
(define %cups-accounts
(list (user-group (name "lp") (system? #t))
(user-group (name "lpadmin") (system? #t))
@ -147,24 +56,6 @@
(home-directory "/var/empty")
(shell (file-append shadow "/sbin/nologin")))))
(define (uglify-field-name field-name)
(let ((str (symbol->string field-name)))
(string-concatenate
(map string-titlecase
(string-split (if (string-suffix? "?" str)
(substring str 0 (1- (string-length str)))
str)
#\-)))))
(define (serialize-field field-name val)
(format #t "~a ~a\n" (uglify-field-name field-name) val))
(define (serialize-package field-name val)
#f)
(define (serialize-string field-name val)
(serialize-field field-name val))
(define (multiline-string-list? val)
(and (list? val)
(and-map (lambda (x)
@ -173,28 +64,11 @@
(define (serialize-multiline-string-list field-name val)
(for-each (lambda (str) (serialize-field field-name str)) val))
(define (space-separated-string-list? val)
(and (list? val)
(and-map (lambda (x)
(and (string? x) (not (string-index x #\space))))
val)))
(define (serialize-space-separated-string-list field-name val)
(serialize-field field-name (string-join val " ")))
(define (space-separated-symbol-list? val)
(and (list? val) (and-map symbol? val)))
(define (serialize-space-separated-symbol-list field-name val)
(serialize-field field-name (string-join (map symbol->string val) " ")))
(define (file-name? val)
(and (string? val)
(string-prefix? "/" val)))
(define (serialize-file-name field-name val)
(serialize-string field-name val))
(define (serialize-boolean field-name val)
(serialize-string field-name (if val "yes" "no")))
(define (non-negative-integer? val)
(and (exact-integer? val) (not (negative? val))))
(define (serialize-non-negative-integer field-name val)
@ -333,7 +207,7 @@ methods. Otherwise apply to only the listed methods.")
(define-configuration location-access-control
(path
(file-name (cups-configuration-missing-field 'location-access-control 'path))
(file-name (configuration-missing-field 'location-access-control 'path))
"Specifies the URI path to which the access control applies.")
(access-controls
(access-control-list '())
@ -359,7 +233,7 @@ methods. Otherwise apply to only the listed methods.")
(define-configuration policy-configuration
(name
(string (cups-configuration-missing-field 'policy-configuration 'name))
(string (configuration-missing-field 'policy-configuration 'name))
"Name of the policy.")
(job-private-access
(string "@OWNER @SYSTEM")
@ -925,12 +799,12 @@ IPP specifications.")
(package-list '())
"Drivers and other extensions to the CUPS package.")
(cupsd.conf
(string (cups-configuration-missing-field 'opaque-cups-configuration
'cupsd.conf))
(string (configuration-missing-field 'opaque-cups-configuration
'cupsd.conf))
"The contents of the @code{cupsd.conf} to use.")
(cups-files.conf
(string (cups-configuration-missing-field 'opaque-cups-configuration
'cups-files.conf))
(string (configuration-missing-field 'opaque-cups-configuration
'cups-files.conf))
"The contents of the @code{cups-files.conf} to use."))
(define %cups-activation
@ -1117,8 +991,8 @@ extensions that it uses."
extensions)))))))))
;; A little helper to make it easier to document all those fields.
(define (generate-documentation)
(define documentation
(define (generate-cups-documentation)
(generate-documentation
`((cups-configuration
,cups-configuration-fields
(files-configuration files-configuration)
@ -1132,35 +1006,5 @@ extensions that it uses."
,location-access-control-fields
(method-access-controls method-access-controls))
(operation-access-controls ,operation-access-control-fields)
(method-access-controls ,method-access-control-fields)))
(define (str x) (object->string x))
(define (generate configuration-name)
(match (assq-ref documentation configuration-name)
((fields . sub-documentation)
`((para "Available " (code ,(str configuration-name)) " fields are:")
,@(map
(lambda (f)
(let ((field-name (configuration-field-name f))
(field-type (configuration-field-type f))
(field-docs (cdr (texi-fragment->stexi
(configuration-field-documentation f))))
(default (catch #t
(configuration-field-default-value-thunk f)
(lambda _ '%invalid))))
(define (show-default? val)
(or (string? default) (number? default) (boolean? default)
(and (symbol? val) (not (eq? val '%invalid)))
(and (list? val) (and-map show-default? val))))
`(deftypevr (% (category
(code ,(str configuration-name)) " parameter")
(data-type ,(str field-type))
(name ,(str field-name)))
,@field-docs
,@(if (show-default? default)
`((para "Defaults to " (samp ,(str default)) "."))
'())
,@(append-map
generate
(or (assq-ref sub-documentation field-name) '())))))
fields)))))
(stexi->texi `(*fragment* . ,(generate 'cups-configuration))))
(method-access-controls ,method-access-control-fields))
'cups-configuration))

183
gnu/services/mail.scm
View File

@ -21,6 +21,7 @@
(define-module (gnu services mail)
#:use-module (gnu services)
#:use-module (gnu services base)
#:use-module (gnu services configuration)
#:use-module (gnu services shepherd)
#:use-module (gnu system pam)
#:use-module (gnu system shadow)
@ -30,13 +31,8 @@
#:use-module (guix records)
#:use-module (guix packages)
#:use-module (guix gexp)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:use-module (ice-9 match)
#:export (&dovecot-configuation-error
dovecot-configuration-error?
dovecot-service
#:export (dovecot-service
dovecot-service-type
dovecot-configuration
opaque-dovecot-configuration
@ -65,112 +61,6 @@
;;;
;;; Code:
(define-condition-type &dovecot-configuration-error &error
dovecot-configuration-error?)
(define (dovecot-error message)
(raise (condition (&message (message message))
(&dovecot-configuration-error))))
(define (dovecot-configuration-field-error field val)
(dovecot-error
(format #f "Invalid value for field ~a: ~s" field val)))
(define (dovecot-configuration-missing-field kind field)
(dovecot-error
(format #f "~a configuration missing required field ~a" kind field)))
(define-record-type* <configuration-field>
configuration-field make-configuration-field configuration-field?
(name configuration-field-name)
(type configuration-field-type)
(getter configuration-field-getter)
(predicate configuration-field-predicate)
(serializer configuration-field-serializer)
(default-value-thunk configuration-field-default-value-thunk)
(documentation configuration-field-documentation))
(define-syntax define-configuration
(lambda (stx)
(define (id ctx part . parts)
(let ((part (syntax->datum part)))
(datum->syntax
ctx
(match parts
(() part)
(parts (symbol-append part
(syntax->datum (apply id ctx parts))))))))
(syntax-case stx ()
((_ stem (field (field-type def) doc) ...)
(with-syntax (((field-getter ...)
(map (lambda (field)
(id #'stem #'stem #'- field))
#'(field ...)))
((field-predicate ...)
(map (lambda (type)
(id #'stem type #'?))
#'(field-type ...)))
((field-serializer ...)
(map (lambda (type)
(id #'stem #'serialize- type))
#'(field-type ...))))
#`(begin
(define-record-type* #,(id #'stem #'< #'stem #'>)
stem #,(id #'stem #'make- #'stem) #,(id #'stem #'stem #'?)
(field field-getter (default def))
...)
(define #,(id #'stem #'stem #'-fields)
(list (configuration-field
(name 'field)
(type 'field-type)
(getter field-getter)
(predicate field-predicate)
(serializer field-serializer)
(default-value-thunk (lambda () def))
(documentation doc))
...))))))))
(define (serialize-configuration config fields)
(for-each (lambda (field)
((configuration-field-serializer field)
(configuration-field-name field)
((configuration-field-getter field) config)))
fields))
(define (validate-configuration config fields)
(for-each (lambda (field)
(let ((val ((configuration-field-getter field) config)))
(unless ((configuration-field-predicate field) val)
(dovecot-configuration-field-error
(configuration-field-name field) val))))
fields))
(define (validate-package field-name package)
(unless (package? package)
(dovecot-configuration-field-error field-name package)))
(define (uglify-field-name field-name)
(let ((str (symbol->string field-name)))
(string-join (string-split (if (string-suffix? "?" str)
(substring str 0 (1- (string-length str)))
str)
#\-)
"_")))
(define (serialize-package field-name val)
#f)
(define (serialize-field field-name val)
(format #t "~a=~a\n" (uglify-field-name field-name) val))
(define (serialize-string field-name val)
(serialize-field field-name val))
(define (space-separated-string-list? val)
(and (list? val)
(and-map (lambda (x)
(and (string? x) (not (string-index x #\space))))
val)))
(define (serialize-space-separated-string-list field-name val)
(serialize-field field-name (string-join val " ")))
(define (comma-separated-string-list? val)
(and (list? val)
@ -180,12 +70,6 @@
(define (serialize-comma-separated-string-list field-name val)
(serialize-field field-name (string-join val ",")))
(define (file-name? val)
(and (string? val)
(string-prefix? "/" val)))
(define (serialize-file-name field-name val)
(serialize-string field-name val))
(define (colon-separated-file-name-list? val)
(and (list? val)
;; Trailing slashes not needed and not
@ -193,9 +77,6 @@
(define (serialize-colon-separated-file-name-list field-name val)
(serialize-field field-name (string-join val ":")))
(define (serialize-boolean field-name val)
(serialize-string field-name (if val "yes" "no")))
(define (non-negative-integer? val)
(and (exact-integer? val) (not (negative? val))))
(define (serialize-non-negative-integer field-name val)
@ -276,7 +157,7 @@
(define-configuration unix-listener-configuration
(path
(file-name (dovecot-configuration-missing-field 'unix-listener 'path))
(file-name (configuration-missing-field 'unix-listener 'path))
"The file name on which to listen.")
(mode
(string "0600")
@ -295,7 +176,7 @@
(define-configuration fifo-listener-configuration
(path
(file-name (dovecot-configuration-missing-field 'fifo-listener 'path))
(file-name (configuration-missing-field 'fifo-listener 'path))
"The file name on which to listen.")
(mode
(string "0600")
@ -314,14 +195,14 @@
(define-configuration inet-listener-configuration
(protocol
(string (dovecot-configuration-missing-field 'inet-listener 'protocol))
(string (configuration-missing-field 'inet-listener 'protocol))
"The protocol to listen for.")
(address
(string "")
"The address on which to listen, or empty for all addresses.")
(port
(non-negative-integer
(dovecot-configuration-missing-field 'inet-listener 'port))
(configuration-missing-field 'inet-listener 'port))
"The port on which to listen.")
(ssl?
(boolean #t)
@ -345,7 +226,7 @@
(serialize-fifo-listener-configuration field-name val))
((inet-listener-configuration? val)
(serialize-inet-listener-configuration field-name val))
(else (dovecot-configuration-field-error field-name val))))
(else (configuration-field-error field-name val))))
(define (listener-configuration-list? val)
(and (list? val) (and-map listener-configuration? val)))
(define (serialize-listener-configuration-list field-name val)
@ -355,7 +236,7 @@
(define-configuration service-configuration
(kind
(string (dovecot-configuration-missing-field 'service 'kind))
(string (configuration-missing-field 'service 'kind))
"The service kind. Valid values include @code{director},
@code{imap-login}, @code{pop3-login}, @code{lmtp}, @code{imap},
@code{pop3}, @code{auth}, @code{auth-worker}, @code{dict},
@ -393,7 +274,7 @@ this."))
(define-configuration protocol-configuration
(name
(string (dovecot-configuration-missing-field 'protocol 'name))
(string (configuration-missing-field 'protocol 'name))
"The name of the protocol.")
(auth-socket-path
(string "/var/run/dovecot/auth-userdb")
@ -1497,8 +1378,8 @@ greyed out, instead of only later giving \"not selectable\" popup error.
"The dovecot package.")
(string
(string (dovecot-configuration-missing-field 'opaque-dovecot-configuration
'string))
(string (configuration-missing-field 'opaque-dovecot-configuration
'string))
"The contents of the @code{dovecot.conf} to use."))
(define %dovecot-accounts
@ -1634,8 +1515,8 @@ by @code{dovecot-configuration}. @var{config} may also be created by
(service dovecot-service-type config))
;; A little helper to make it easier to document all those fields.
(define (generate-documentation)
(define documentation
(define (generate-dovecot-documentation)
(generate-documentation
`((dovecot-configuration
,dovecot-configuration-fields
(dict dict-configuration)
@ -1660,42 +1541,8 @@ by @code{dovecot-configuration}. @var{config} may also be created by
,service-configuration-fields
(listeners unix-listener-configuration fifo-listener-configuration
inet-listener-configuration))
(protocol-configuration ,protocol-configuration-fields)))
(define (generate configuration-name)
(match (assq-ref documentation configuration-name)
((fields . sub-documentation)
(format #t "\nAvailable @code{~a} fields are:\n\n" configuration-name)
(for-each
(lambda (f)
(let ((field-name (configuration-field-name f))
(field-type (configuration-field-type f))
(field-docs (string-trim-both
(configuration-field-documentation f)))
(default (catch #t
(configuration-field-default-value-thunk f)
(lambda _ 'nope))))
(define (escape-chars str chars escape)
(with-output-to-string
(lambda ()
(string-for-each (lambda (c)
(when (char-set-contains? chars c)
(display escape))
(display c))
str))))
(define (show-default? val)
(or (string? default) (number? default) (boolean? default)
(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)
(when (show-default? default)
(format #t "Defaults to @samp{~a}.\n"
(escape-chars (format #f "~s" default)
(char-set #\@ #\{ #\})
#\@)))
(for-each generate (or (assq-ref sub-documentation field-name) '()))
(format #t "@end deftypevr\n\n")))
fields))))
(generate 'dovecot-configuration))
(protocol-configuration ,protocol-configuration-fields))
'dovecot-configuration))
;;;