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[bug#62298] [PATCH v2 8/8] services: mympd: Use user-account (resp. user
From: |
Bruno Victal |
Subject: |
[bug#62298] [PATCH v2 8/8] services: mympd: Use user-account (resp. user-group) for user (resp. group) fields. |
Date: |
Thu, 23 Mar 2023 15:02:18 +0000 |
* gnu/services/audio.scm (%mympd-user, %mympd-group): New variable.
(mympd-user-sanitizer, mympd-group-sanitizer): New procedure.
(mympd-configuration)[user, group]: Set value type to user-account (resp.
user-group).
(mympd-serialize-configuration): Adapt for user-account values in user field.
(mympd-accounts): Adapt for user-account (resp. user-group) in user (resp.
group) field.
---
doc/guix.texi | 4 +--
gnu/services/audio.scm | 74 ++++++++++++++++++++++++++++++++++--------
2 files changed, 63 insertions(+), 15 deletions(-)
diff --git a/doc/guix.texi b/doc/guix.texi
index 520a65b0b1..ee1e66b3ff 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -33732,10 +33732,10 @@ Audio Services
This is a list of symbols naming Shepherd services that this service
will depend on.
-@item @code{user} (default: @code{"mympd"}) (type: string)
+@item @code{user} (type: maybe-user-account)
Owner of the @command{mympd} process.
-@item @code{group} (default: @code{"nogroup"}) (type: string)
+@item @code{group} (type: maybe-user-group)
Owner group of the @command{mympd} process.
@item @code{work-directory} (default: @code{"/var/lib/mympd"}) (type: string)
diff --git a/gnu/services/audio.scm b/gnu/services/audio.scm
index c168d1481c..f7f430039e 100644
--- a/gnu/services/audio.scm
+++ b/gnu/services/audio.scm
@@ -659,6 +659,54 @@ (define-configuration/no-serialization mympd-ip-acl
(define-maybe/no-serialization integer)
(define-maybe/no-serialization mympd-ip-acl)
+;; XXX: These will shadow the previous definition used by mpd
+;; and cause warnings to be shown. Maybe split the file
+;; into audio/mpd.scm and audio/mympd.scm ?
+#;(define-maybe/no-serialization user-account)
+#;(define-maybe/no-serialization user-group)
+
+(define %mympd-user
+ (user-account
+ (name "mympd")
+ (group "mympd")
+ (system? #t)
+ (comment "myMPD user")
+ (home-directory "/var/empty")
+ (shell (file-append shadow "/sbin/nologin"))))
+
+(define %mympd-group
+ (user-group
+ (name "mympd")
+ (system? #t)))
+
+;;; TODO: procedures for unsupported value types, to be removed.
+(define (mympd-user-sanitizer value)
+ (cond ((user-account? value) value)
+ ((string? value)
+ (warning (G_ "string value for 'user' is not supported, use \
+user-account instead~%"))
+ (user-account
+ (inherit %mympd-user)
+ (name value)
+ ;; XXX: this is to be lazily substituted in (…-accounts)
+ ;; with the value from 'group'.
+ (group %lazy-group)))
+ (else
+ (configuration-field-error #f 'user value))))
+
+(define (mympd-group-sanitizer value)
+ (cond ((user-group? value) value)
+ ((string? value)
+ (warning (G_ "string value for 'group' is not supported, use \
+user-group instead~%"))
+ (user-group
+ (inherit %mympd-group)
+ (name value)))
+ (else
+ (configuration-field-error #f 'group value))))
+;;;
+
+
;; XXX: The serialization procedures are insufficient since we require
;; access to multiple fields at once.
;; Fields marked with empty-serializer are never serialized and are
@@ -676,13 +724,15 @@ (define-configuration/no-serialization mympd-configuration
empty-serializer)
(user
- (string "mympd")
+ (maybe-user-account %mympd-user)
"Owner of the @command{mympd} process."
+ (sanitizer mympd-user-sanitizer)
empty-serializer)
(group
- (string "nogroup")
+ (maybe-user-group %mympd-group)
"Owner group of the @command{mympd} process."
+ (sanitizer mympd-group-sanitizer)
empty-serializer)
(work-directory
@@ -817,7 +867,8 @@ (define (mympd-shepherd-service config)
(match-record config <mympd-configuration> (package shepherd-requirement
user work-directory
cache-directory log-level log-to)
- (let ((log-level* (format #f "MYMPD_LOGLEVEL=~a" log-level)))
+ (let ((log-level* (format #f "MYMPD_LOGLEVEL=~a" log-level))
+ (username (user-account-name user)))
(shepherd-service
(documentation "Run the myMPD daemon.")
(requirement `(loopback user-processes
@@ -825,7 +876,7 @@ (define (mympd-shepherd-service config)
,@shepherd-requirement))
(provision '(mympd))
(start #~(begin
- (let* ((pw (getpwnam #$user))
+ (let* ((pw (getpwnam #$username))
(uid (passwd:uid pw))
(gid (passwd:gid pw)))
(for-each (lambda (dir)
@@ -835,7 +886,7 @@ (define (mympd-shepherd-service config)
(make-forkexec-constructor
`(#$(file-append package "/bin/mympd")
- "--user" #$user
+ "--user" #$username
#$@(if (eqv? log-to 'syslog) '("--syslog") '())
"--workdir" #$work-directory
"--cachedir" #$cache-directory)
@@ -845,14 +896,11 @@ (define (mympd-shepherd-service config)
(define (mympd-accounts config)
(match-record config <mympd-configuration> (user group)
- (list (user-group (name group)
- (system? #t))
- (user-account (name user)
- (group group)
- (system? #t)
- (comment "myMPD user")
- (home-directory "/var/empty")
- (shell (file-append shadow
"/sbin/nologin"))))))
+ ;; TODO: deprecation code, to be removed
+ (let ((user (if (eq? (user-account-group user) %lazy-group)
+ (inject-group-into-user user group)
+ user)))
+ (list user group))))
(define (mympd-log-rotation config)
(match-record config <mympd-configuration> (log-to)
--
2.39.1
- [bug#62298] [PATCH 8/8] services: mympd: Use user-account (resp. user-group) for user (resp. group) fields., (continued)
- [bug#62298] [PATCH 4/8] services: mympd: Require 'syslog service when configured to log to syslog., Bruno Victal, 2023/03/20
- [bug#62298] [PATCH v2 1/8] services: configuration: Add user-defined sanitizer support., Bruno Victal, 2023/03/23
- [bug#62298] [PATCH v2 4/8] services: mympd: Require 'syslog service when configured to log to syslog., Bruno Victal, 2023/03/23
- [bug#62298] [PATCH v2 2/8] services: replace bare serializers with (serializer ...), Bruno Victal, 2023/03/23
- [bug#62298] [PATCH v2 6/8] services: mpd: Set PulseAudio related variables as default value for environment-variables field., Bruno Victal, 2023/03/23
- [bug#62298] [PATCH v2 3/8] services: audio: remove redundant list-of-string? predicate., Bruno Victal, 2023/03/23
- [bug#62298] [PATCH v2 8/8] services: mympd: Use user-account (resp. user-group) for user (resp. group) fields.,
Bruno Victal <=
- [bug#62298] [PATCH v2 8/8] services: mympd: Use user-account (resp. user-group) for user (resp. group) fields., Maxim Cournoyer, 2023/03/24
- [bug#62298] [PATCH v2 8/8] services: mympd: Use user-account (resp. user-group) for user (resp. group) fields., Bruno Victal, 2023/03/24
- [bug#62298] [PATCH v2 8/8] services: mympd: Use user-account (resp. user-group) for user (resp. group) fields., Liliana Marie Prikler, 2023/03/25
[bug#62298] [PATCH v2 7/8] services: mpd: Use user-account (resp. user-group) for user (resp. group) fields., Bruno Victal, 2023/03/23
[bug#62298] [PATCH v2 5/8] services: mpd: Fix unintentional API breakage for mixer-type field., Bruno Victal, 2023/03/23
[bug#62298] [PATCH v2 1/8] services: configuration: Add user-defined sanitizer support., Liliana Marie Prikler, 2023/03/23