;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.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 sound)
  #:use-module (gnu services base)
  #:use-module (gnu services configuration)
  #:use-module (gnu services shepherd)
  #:use-module (gnu services)
  #:use-module (gnu system shadow)
  #:use-module (guix gexp)
  #:use-module (guix packages)
  #:use-module (guix records)
  #:use-module (guix store)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages pulseaudio)
  #:use-module (ice-9 match)
  #:export (alsa-configuration
            alsa-service-type))

;;; Commentary:
;;;
;;; Sound services.
;;;
;;; Code:


;;;
;;; ALSA
;;;

(define-record-type* <alsa-configuration>
  alsa-configuration make-alsa-configuration alsa-configuration?
  (alsa-plugins alsa-configuration-alsa-plugins ;<package>
                (default alsa-plugins))
  (pulseaudio?   alsa-configuration-pulseaudio? ;boolean
                 (default #t))
  (extra-options alsa-configuration-extra-options ;string
                 (default "")))

(define alsa-config-file
  ;; Return the ALSA configuration file.
  (match-lambda
    (($ <alsa-configuration> alsa-plugins pulseaudio? extra-options)
     (apply mixed-text-file "asound.conf"
            `("# Generated by 'alsa-service'.\n\n"
              ,@(if pulseaudio?
                    `("# Use PulseAudio by default
pcm_type.pulse {
  lib \"" ,#~(string-append #$alsa-plugins:pulseaudio
                            "/lib/alsa-lib/libasound_module_pcm_pulse.so") "\"
}

ctl_type.pulse {
  lib \"" ,#~(string-append #$alsa-plugins:pulseaudio
                            "/lib/alsa-lib/libasound_module_ctl_pulse.so") "\"
}

pcm.!default {
  type pulse
  fallback \"sysdefault\"
  hint {
    show on
    description \"Default ALSA Output (currently PulseAudio Sound Server)\"
  }
}

ctl.!default {
  type pulse
  fallback \"sysdefault\"
}\n\n")
                    '())
              ,extra-options)))))

(define (alsa-etc-service config)
  (list `("asound.conf" ,(alsa-config-file config))))

(define alsa-service-type
  (service-type
   (name 'alsa)
   (extensions
    (list (service-extension etc-service-type alsa-etc-service)))
   (default-value (alsa-configuration))
   (description "Configure low-level Linux sound support, ALSA.")))

;;; sound.scm ends here
re"): Use it.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-05-04 09:56:13 +0200'>2020-05-04</span></td><td><a href='/guix/commit/tests/openpgp.scm?id=bd8126558dc7a022d7853d803d7134ffa1b7bc52'>openpgp: 'lookup-key-by-{id,fingerprint}' return the key first.</a><span class='msg-avail'>...<span class='msg-tooltip'>Previously, 'lookup-key-by-{id,fingerprint}' would always return the
list of packets where the primary key is first.  Thus, the caller would
need to use 'find' to actually find the requested key.

* guix/openpgp.scm (keyring-insert): Always add KEY to PACKETS.
(lookup-key-by-id, lookup-key-by-fingerprint): Change to return the key
as the first value.
(verify-openpgp-signature): Remove now unneeded call to 'find'.
* tests/openpgp.scm ("get-openpgp-keyring"): Adjust accordingly.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-05-04 09:56:12 +0200'>2020-05-04</span></td><td><a href='/guix/commit/tests/openpgp.scm?id=b45fa0a123bec8d023e5520dfb381bfc73313929'>openpgp: 'verify-openpgp-signature' looks up by fingerprint when possible.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/openpgp.scm (verify-openpgp-signature): Use
'lookup-key-by-fingerprint' when SIG contains a fingerprint.
Honor FINGERPRINT in the 'find' predicate.  Upon missing-key, return
FINGERPRINT if available.
* tests/openpgp.scm ("verify-openpgp-signature, missing key"): Adjust
expected value accordingly.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-05-04 09:56:12 +0200'>2020-05-04</span></td><td><a href='/guix/commit/tests/openpgp.scm?id=efe1f0122c61b8932671d07419f0200c170a994e'>openpgp: Add 'lookup-key-by-fingerprint'.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/openpgp.scm (&lt;openpgp-keyring&gt;)[table]: Rename to...
[ids]: ... this.
[fingerprints]: New field.
(keyring-insert, lookup-key-by-fingerprint): New procedures.
(%empty-keyring): Adjust.
(get-openpgp-keyring): Manipulate KEYRING instead of its vhash, use
'keyring-insert'.
* tests/openpgp.scm ("get-openpgp-keyring"): Test
'lookup-key-by-fingerprint'.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-05-04 09:56:12 +0200'>2020-05-04</span></td><td><a href='/guix/commit/tests/openpgp.scm?id=7b2b3a13cc2d9b043f37b2e7ba0f147c08de8fad'>openpgp: Store the issuer key id and fingerprint in &lt;openpgp-signature&gt;.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/openpgp.scm (&lt;openpgp-signature&gt;)[issuer, issuer-fingerprint]:
New fields.
(openpgp-signature-issuer, openpgp-signature-issuer-fingerprint): Remove.
(verify-openpgp-signature): Use 'openpgp-signature-issuer-key-id'.
(get-signature): Initialize 'issuer' and 'issuer-fingerprint'.
* tests/openpgp.scm ("get-openpgp-detached-signature/ascii"): Adjust
accordingly.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-05-04 09:56:12 +0200'>2020-05-04</span></td><td><a href='/guix/commit/tests/openpgp.scm?id=4459c7859c286ab54fa3a9901c8a17591b04c516'>openpgp: Decode the issuer-fingerprint signature subpacket.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/openpgp.scm (SUBPACKET-ISSUER-FINGERPRINT): New variable.
(openpgp-signature-issuer-fingerprint): New procedure.
(key-id-matches-fingerprint?): New procedure.
(get-signature): Look for the 'issuer and 'issuer-fingerprint
subpackets.  Ensure the issuer key ID matches the fingerprint when both
are available.
(parse-subpackets): Handle SUBPACKET-ISSUER-FINGERPRINT.
* tests/openpgp.scm (%rsa-key-fingerprint)
(%dsa-key-fingerprint, %ed25519-key-fingerprint): New variables.
* tests/openpgp.scm ("get-openpgp-detached-signature/ascii"): Check the
result of 'openpgp-signature-issuer-fingerprint'.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-05-04 09:56:12 +0200'>2020-05-04</span></td><td><a href='/guix/commit/tests/openpgp.scm?id=43408e304ffb1149f35cb539b40d673d567c9116'>Add (guix openpgp).</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/openpgp.scm, tests/openpgp.scm, tests/civodul.key,
tests/dsa.key, tests/ed25519.key, tests/rsa.key,
tests/ed25519.sec: New files.
* Makefile.am (MODULES): Add guix/openpgp.scm.
(SCM_TESTS): Add tests/openpgp.scm.
(EXTRA_DIST): Add tests/*.key and tests/ed25519.sec.
</span></span></td><td>Ludovic Courtès</td></tr>