From bc4c3c85a8738958a2a1394eac3df8981e6a6eae Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson2@worcester.edu>
Date: Sat, 17 Feb 2024 07:49:33 -0500
Subject: Refactor home stuff into modules, add pipewire.

---
 dthompson/home/pipewire.scm | 100 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 dthompson/home/pipewire.scm

(limited to 'dthompson/home/pipewire.scm')

diff --git a/dthompson/home/pipewire.scm b/dthompson/home/pipewire.scm
new file mode 100644
index 0000000..bff47ea
--- /dev/null
+++ b/dthompson/home/pipewire.scm
@@ -0,0 +1,100 @@
+;; Snarfed from David Wilson who I believe snarfed from Andrew Tropin.
+(define-module (dthompson home pipewire)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages linux)
+  #:use-module (gnu services)
+  #:use-module (gnu services configuration)
+  #:use-module (gnu home services)
+  #:use-module (gnu home services shepherd)
+  #:use-module (guix gexp))
+
+(define (home-pipewire-profile-service config)
+  (map specification->package
+       (list "pipewire"
+             "wireplumber")))
+
+(define (home-pipewire-shepherd-service config)
+  (list
+   ;; Start Pipewire daemon
+   (shepherd-service
+    (requirement '(dbus))
+    (provision '(pipewire))
+    (stop  #~(make-kill-destructor))
+    (start #~(make-forkexec-constructor
+              (list #$(file-append pipewire "/bin/pipewire"))
+              #:log-file (string-append
+                          (or (getenv "XDG_LOG_HOME")
+                              (format #f "~a/.local/var/log"
+                                      (getenv "HOME")))
+                          "/pipewire.log")
+              #:environment-variables
+              (append (list "DISABLE_RTKIT=1")
+                      (default-environment-variables)))))
+   ;; Start Pipewire PulseAudio module
+   (shepherd-service
+    (requirement '(pipewire))
+    (provision '(pipewire-pulse))
+    (stop  #~(make-kill-destructor))
+    (start #~(make-forkexec-constructor
+              (list #$(file-append pipewire "/bin/pipewire-pulse"))
+              #:log-file (string-append
+                          (or (getenv "XDG_LOG_HOME")
+                              (format #f "~a/.local/var/log"
+                                      (getenv "HOME")))
+                          "/pipewire-pulse.log")
+              #:environment-variables
+              (append (list "DISABLE_RTKIT=1")
+                      (default-environment-variables)))))
+   ;; Start Wireplumber session manager
+   (shepherd-service
+    (requirement '(pipewire))
+    (provision '(wireplumber))
+    (stop  #~(make-kill-destructor))
+    (start #~(make-forkexec-constructor
+              (list #$(file-append wireplumber "/bin/wireplumber"))
+              #:log-file (string-append
+                          (or (getenv "XDG_LOG_HOME")
+                              (format #f "~a/.local/var/log"
+                                      (getenv "HOME")))
+                          "/wireplumber.log")
+              #:environment-variables
+              (append (list "DISABLE_RTKIT=1")
+                      (default-environment-variables)))))))
+
+(define (home-pipewire-xdg-configuration-service config)
+  `(("alsa/asoundrc"
+     ,(mixed-text-file
+       "asoundrc"
+       #~(string-append
+          "<"
+	        #$(file-append
+             pipewire "/share/alsa/alsa.conf.d/50-pipewire.conf")
+	        ">\n<"
+	        #$(file-append
+             pipewire "/share/alsa/alsa.conf.d/99-pipewire-default.conf")
+          ">\n"
+          "
+pcm_type.pipewire {
+  lib " #$(file-append pipewire "/lib/alsa-lib/libasound_module_pcm_pipewire.so")
+  "
+}
+ctl_type.pipewire {
+  lib " #$(file-append pipewire "/lib/alsa-lib/libasound_module_ctl_pipewire.so")
+  "
+}
+")))))
+
+(define-public home-pipewire-service-type
+  (service-type (name 'home-pipewire)
+                (extensions
+                 (list (service-extension
+                        home-profile-service-type
+                        home-pipewire-profile-service)
+                       (service-extension
+                        home-shepherd-service-type
+                        home-pipewire-shepherd-service)
+                       (service-extension
+                        home-xdg-configuration-files-service-type
+                        home-pipewire-xdg-configuration-service)))
+                (default-value #f)
+                (description "Configures and runs the Pipewire audio system.")))
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