diff options
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/services/audio.scm | 87 |
1 files changed, 70 insertions, 17 deletions
diff --git a/gnu/services/audio.scm b/gnu/services/audio.scm index bc4aed71dc..854efd744a 100644 --- a/gnu/services/audio.scm +++ b/gnu/services/audio.scm @@ -140,6 +140,14 @@ (define list-of-symbol? (list-of symbol?)) +;; Helpers for deprecated field types, to be removed later. +(define %lazy-group (make-symbol "%lazy-group")) + +(define (%set-user-group user group) + (user-account + (inherit user) + (group (user-group-name group)))) + ;;; ;;; MPD @@ -164,10 +172,31 @@ (define (mpd-serialize-list-of-strings field-name value) #~(string-append #$@(map (cut mpd-serialize-string field-name <>) value))) +(define (mpd-serialize-user-account field-name value) + (mpd-serialize-string field-name (user-account-name value))) + +(define (mpd-serialize-user-group field-name value) + (mpd-serialize-string field-name (user-group-name value))) + (define-maybe string (prefix mpd-)) (define-maybe list-of-strings (prefix mpd-)) (define-maybe boolean (prefix mpd-)) +(define %mpd-user + (user-account + (name "mpd") + (group %lazy-group) + (system? #t) + (comment "Music Player Daemon (MPD) user") + ;; MPD can use $HOME (or $XDG_CONFIG_HOME) to place its data + (home-directory "/var/lib/mpd") + (shell (file-append shadow "/sbin/nologin")))) + +(define %mpd-group + (user-group + (name "mpd") + (system? #t))) + ;;; TODO: Procedures for deprecated fields, to be removed. (define mpd-deprecated-fields '((music-dir . music-directory) @@ -197,6 +226,33 @@ (define-maybe port (prefix mpd-)) +;;; Procedures for unsupported value types, to be removed. + +(define (mpd-user-sanitizer value) + (cond ((user-account? value) value) + ((string? value) + (warning (G_ "string value for 'user' is deprecated, use \ +user-account instead~%")) + (user-account + (inherit %mpd-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 (mpd-group-sanitizer value) + (cond ((user-group? value) value) + ((string? value) + (warning (G_ "string value for 'group' is deprecated, use \ +user-group instead~%")) + (user-group + (inherit %mpd-group) + (name value))) + (else + (configuration-field-error #f 'group value)))) + ;;; ;; Generic MPD plugin record, lists only the most prevalent fields. @@ -347,12 +403,14 @@ to be appended to the audio output configuration.") empty-serializer) (user - (string "mpd") - "The user to run mpd as.") + (user-account %mpd-user) + "The user to run mpd as." + (sanitizer mpd-user-sanitizer)) (group - (string "mpd") - "The group to run mpd as.") + (user-group %mpd-group) + "The group to run mpd as." + (sanitizer mpd-group-sanitizer)) (shepherd-requirement (list-of-symbol '()) @@ -517,7 +575,8 @@ appended to the configuration.") log-file playlist-directory db-file state-file sticker-file environment-variables) - (let* ((config-file (mpd-serialize-configuration config))) + (let ((config-file (mpd-serialize-configuration config)) + (username (user-account-name user))) (shepherd-service (documentation "Run the MPD (Music Player Daemon)") (requirement `(user-processes loopback ,@shepherd-requirement)) @@ -526,7 +585,7 @@ appended to the configuration.") (and=> #$(maybe-value log-file) (compose mkdir-p dirname)) - (let ((user (getpw #$user))) + (let ((user (getpw #$username))) (for-each (lambda (x) (when (and x (not (file-exists? x))) @@ -560,17 +619,11 @@ appended to the configuration.") (define (mpd-accounts config) (match-record config <mpd-configuration> (user group) - (list (user-group - (name group) - (system? #t)) - (user-account - (name user) - (group group) - (system? #t) - (comment "Music Player Daemon (MPD) user") - ;; MPD can use $HOME (or $XDG_CONFIG_HOME) to place its data - (home-directory "/var/lib/mpd") - (shell (file-append shadow "/sbin/nologin")))))) + ;; TODO: Deprecation code, to be removed. + (let ((user (if (eq? (user-account-group user) %lazy-group) + (%set-user-group user group) + user))) + (list user group)))) (define mpd-service-type (service-type |