services: mpd: Use proper records for user and group fields.
Deprecate using strings for these fields and prefer user-account (resp. user-group) instead to avoid duplication within account-service-type. Fixes #61570 <https://issues.guix.gnu.org/61570>. * gnu/services/audio.scm (%mpd-user, %mpd-group) (mpd-serialize-user-account, mpd-serialize-user-group) (mpd-user-sanitizer, mpd-group-sanitizer): New variables. (mpd-configuration)[user]: Use user-account as value type. Sanitize via mpd-user-sanitizer. [group]: Use user-group as value type. Sanitize via mpd-group-sanitizer. (mpd-shepherd-service): Adjust accordingly. (mpd-accounts): Likewise. * doc/guix.texi (Audio Services)[Music Player Daemon]: Likewise. Signed-off-by: Liliana Marie Prikler <liliana.prikler@gmail.com>
This commit is contained in:
Bruno Victal
Liliana Marie Prikler
parent
2c4df1a41a
commit
7fdadeac11
@ -6211,7 +6211,7 @@ Transformation Options}) so it should be lossless.
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@item --profile=@var{profile}
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@itemx -p @var{profile}
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Create an environment containing the packages installed in @var{profile}.
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Create an environment containing the packages installed in @var{profile}.
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Use @command{guix package} (@pxref{Invoking guix package}) to create
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and manage profiles.
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@ -6657,7 +6657,7 @@ interpreted as packages that will be added to the environment directly.
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@item --profile=@var{profile}
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@itemx -p @var{profile}
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Create an environment containing the packages installed in @var{profile}.
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Create an environment containing the packages installed in @var{profile}.
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Use @command{guix package} (@pxref{Invoking guix package}) to create
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and manage profiles.
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@ -12667,7 +12667,7 @@ candidates, and even to test their impact on packages that depend on
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them:
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@example
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guix build elogind --with-source=@dots{}/shepherd-0.9.0rc1.tar.gz
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guix build elogind --with-source=@dots{}/shepherd-0.9.0rc1.tar.gz
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@end example
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@dots{} or to build from a checkout in a pristine environment:
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@ -23783,7 +23783,7 @@ created for.
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Restricts all controllers to the specified transport. @code{'dual} means both
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BR/EDR and LE are enabled (if supported by the hardware).
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Possible values are:
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Possible values are:
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@itemize @bullet
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@item
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@ -33494,14 +33494,17 @@ Data type representing the configuration of @command{mpd}.
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@item @code{package} (default: @code{mpd}) (type: file-like)
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The MPD package.
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@item @code{user} (default: @code{"mpd"}) (type: string)
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@item @code{user} (default: @code{%mpd-user}) (type: user-account)
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The user to run mpd as.
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@item @code{group} (default: @code{"mpd"}) (type: string)
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The default @code{%mpd-user} is a system user with the name ``mpd'',
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who is a part of the group @var{group} (see below).
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@item @code{group} (default: @code{%mpd-group}) (type: user-group)
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The group to run mpd as.
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The default @code{%mpd-group} is a system group with name ``mpd''.
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@item @code{shepherd-requirement} (default: @code{()}) (type: list-of-symbol)
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This is a list of symbols naming Shepherd services that this service
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A list of symbols naming Shepherd services that this service
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will depend on.
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@item @code{environment-variables} (default: @code{("PULSE_CLIENTCONFIG=/etc/pulse/client.conf" "PULSE_CONFIG=/etc/pulse/daemon.conf")}) (type: list-of-strings)
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@ -41215,7 +41218,7 @@ A clause can have one of the following forms:
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(@var{field-name}
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(@var{type} @var{default-value})
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@var{documentation})
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(@var{field-name}
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(@var{type} @var{default-value})
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@var{documentation}
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@ -41289,7 +41292,7 @@ A simple serializer procedure could look like this:
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(define (serialize-boolean field-name value)
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(let ((value (if value "true" "false")))
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#~(string-append #$field-name #$value)))
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@end lisp
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@end lisp
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In some cases multiple different configuration records might be defined
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in the same file, but their serializers for the same type might have to
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@ -41307,7 +41310,7 @@ manually specify a custom @var{serializer} for every field.
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(define (bar-serialize-string field-name value)
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@dots{})
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(define-configuration foo-configuration
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(label
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(string)
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@ -41339,7 +41342,7 @@ macro which is a shorthand of this.
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(field
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(string "test")
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"Some documentation."))
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@end lisp
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@end lisp
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@end defmac
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@defmac define-maybe type
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@ -44145,7 +44148,7 @@ down in its dependency graph. As it turns out, GLib does not have a
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from /gnu/store/@dots{}-glib-2.62.6/lib/libglib-2.0.so.0
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#1 0x00007ffff608a7d6 in gobject_init_ctor ()
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from /gnu/store/@dots{}-glib-2.62.6/lib/libgobject-2.0.so.0
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#2 0x00007ffff7fe275a in call_init (l=<optimized out>, argc=argc@@entry=1, argv=argv@@entry=0x7fffffffcfd8,
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#2 0x00007ffff7fe275a in call_init (l=<optimized out>, argc=argc@@entry=1, argv=argv@@entry=0x7fffffffcfd8,
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env=env@@entry=0x7fffffffcfe8) at dl-init.c:72
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#3 0x00007ffff7fe2866 in call_init (env=0x7fffffffcfe8, argv=0x7fffffffcfd8, argc=1, l=<optimized out>)
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at dl-init.c:118
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@ -44174,7 +44177,7 @@ Starting program: /gnu/store/@dots{}-profile/bin/sh -c exec\ inkscape
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#0 g_getenv (variable=variable@@entry=0x7ffff60c7a2e "GOBJECT_DEBUG") at ../glib-2.62.6/glib/genviron.c:252
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#1 0x00007ffff608a7d6 in gobject_init () at ../glib-2.62.6/gobject/gtype.c:4380
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#2 gobject_init_ctor () at ../glib-2.62.6/gobject/gtype.c:4493
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#3 0x00007ffff7fe275a in call_init (l=<optimized out>, argc=argc@@entry=3, argv=argv@@entry=0x7fffffffd088,
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#3 0x00007ffff7fe275a in call_init (l=<optimized out>, argc=argc@@entry=3, argv=argv@@entry=0x7fffffffd088,
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env=env@@entry=0x7fffffffd0a8) at dl-init.c:72
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@dots{}
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@end example
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@ -140,6 +140,14 @@
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(define list-of-symbol?
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(list-of symbol?))
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;; Helpers for deprecated field types, to be removed later.
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(define %lazy-group (make-symbol "%lazy-group"))
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(define (%set-user-group user group)
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(user-account
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(inherit user)
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(group (user-group-name group))))
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;;;
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;;; MPD
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@ -164,10 +172,31 @@
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(define (mpd-serialize-list-of-strings field-name value)
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#~(string-append #$@(map (cut mpd-serialize-string field-name <>) value)))
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(define (mpd-serialize-user-account field-name value)
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(mpd-serialize-string field-name (user-account-name value)))
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(define (mpd-serialize-user-group field-name value)
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(mpd-serialize-string field-name (user-group-name value)))
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(define-maybe string (prefix mpd-))
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(define-maybe list-of-strings (prefix mpd-))
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(define-maybe boolean (prefix mpd-))
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(define %mpd-user
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(user-account
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(name "mpd")
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(group %lazy-group)
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(system? #t)
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(comment "Music Player Daemon (MPD) user")
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;; MPD can use $HOME (or $XDG_CONFIG_HOME) to place its data
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(home-directory "/var/lib/mpd")
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(shell (file-append shadow "/sbin/nologin"))))
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(define %mpd-group
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(user-group
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(name "mpd")
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(system? #t)))
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;;; TODO: Procedures for deprecated fields, to be removed.
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(define mpd-deprecated-fields '((music-dir . music-directory)
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@ -197,6 +226,33 @@
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(define-maybe port (prefix mpd-))
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;;; Procedures for unsupported value types, to be removed.
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(define (mpd-user-sanitizer value)
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(cond ((user-account? value) value)
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((string? value)
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(warning (G_ "string value for 'user' is deprecated, use \
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user-account instead~%"))
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(user-account
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(inherit %mpd-user)
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(name value)
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;; XXX: This is to be lazily substituted in (…-accounts)
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;; with the value from 'group'.
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(group %lazy-group)))
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(else
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(configuration-field-error #f 'user value))))
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(define (mpd-group-sanitizer value)
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(cond ((user-group? value) value)
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((string? value)
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(warning (G_ "string value for 'group' is deprecated, use \
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user-group instead~%"))
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(user-group
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(inherit %mpd-group)
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(name value)))
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(else
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(configuration-field-error #f 'group value))))
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;;;
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;; Generic MPD plugin record, lists only the most prevalent fields.
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@ -347,12 +403,14 @@ to be appended to the audio output configuration.")
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empty-serializer)
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(user
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(string "mpd")
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"The user to run mpd as.")
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(user-account %mpd-user)
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"The user to run mpd as."
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(sanitizer mpd-user-sanitizer))
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(group
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(string "mpd")
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"The group to run mpd as.")
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(user-group %mpd-group)
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"The group to run mpd as."
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(sanitizer mpd-group-sanitizer))
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(shepherd-requirement
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(list-of-symbol '())
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@ -517,7 +575,8 @@ appended to the configuration.")
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log-file playlist-directory
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db-file state-file sticker-file
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environment-variables)
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(let* ((config-file (mpd-serialize-configuration config)))
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(let ((config-file (mpd-serialize-configuration config))
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(username (user-account-name user)))
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(shepherd-service
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(documentation "Run the MPD (Music Player Daemon)")
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(requirement `(user-processes loopback ,@shepherd-requirement))
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@ -526,7 +585,7 @@ appended to the configuration.")
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(and=> #$(maybe-value log-file)
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(compose mkdir-p dirname))
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(let ((user (getpw #$user)))
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(let ((user (getpw #$username)))
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(for-each
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(lambda (x)
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(when (and x (not (file-exists? x)))
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@ -560,17 +619,11 @@ appended to the configuration.")
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(define (mpd-accounts config)
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(match-record config <mpd-configuration> (user group)
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(list (user-group
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(name group)
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(system? #t))
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(user-account
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(name user)
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(group group)
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(system? #t)
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(comment "Music Player Daemon (MPD) user")
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;; MPD can use $HOME (or $XDG_CONFIG_HOME) to place its data
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(home-directory "/var/lib/mpd")
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(shell (file-append shadow "/sbin/nologin"))))))
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;; TODO: Deprecation code, to be removed.
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(let ((user (if (eq? (user-account-group user) %lazy-group)
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(%set-user-group user group)
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user)))
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(list user group))))
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(define mpd-service-type
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(service-type
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