treewide: include PipeWire op and enforce PulseAudio check

This fully replaces PulseAudio with PipeWire and enforces the PulseAudio check and error message. The pipewire-pulse daemon is handled in the NixOS module.

Closes #26.

Signed-off-by: Ophestra <cat@gensokyo.uk>

cmd/hakurei/command.go

@@ -14,6 +14,7 @@ import (
 	_ "unsafe" // for go:linkname
 
 	"hakurei.app/command"
+	"hakurei.app/container"
 	"hakurei.app/container/check"
 	"hakurei.app/container/fhs"
 	"hakurei.app/hst"
@@ -149,9 +150,6 @@ func buildCommand(ctx context.Context, msg message.Msg, early *earlyHardeningErr
 			if flagPipeWire || flagPulse {
 				et |= hst.EPipeWire
 			}
-			if flagPulse {
-				et |= hst.EPulse
-			}
 
 			config := &hst.Config{
 				ID:          flagID,
@@ -189,6 +187,14 @@ func buildCommand(ctx context.Context, msg message.Msg, early *earlyHardeningErr
 				}})
 			}
 
+			// start pipewire-pulse: this most likely exists on host if PipeWire is available
+			if flagPulse {
+				config.Container.Filesystem = append(config.Container.Filesystem, hst.FilesystemConfigJSON{FilesystemConfig: &hst.FSDaemon{
+					Target: fhs.AbsRunUser.Append(strconv.Itoa(container.OverflowUid(msg)), "pulse/native"),
+					Exec:   shell, Args: []string{"-lc", "pipewire-pulse"},
+				}})
+			}
+
 			config.Container.Filesystem = append(config.Container.Filesystem,
 				// opportunistically bind kvm
 				hst.FilesystemConfigJSON{FilesystemConfig: &hst.FSBind{

cmd/hakurei/print_test.go

@@ -62,7 +62,7 @@ func TestPrintShowInstance(t *testing.T) {
 		{"nil", nil, nil, false, false, "Error: invalid configuration!\n\n", false},
 		{"config", nil, hst.Template(), false, false, `App
  Identity:       9 (org.chromium.Chromium)
- Enablements:    wayland, dbus, pipewire, pulseaudio
+ Enablements:    wayland, dbus, pipewire
  Groups:         video, dialout, plugdev
  Flags:          multiarch, compat, devel, userns, net, abstract, tty, mapuid, device, runtime, tmpdir
  Home:           /data/data/org.chromium.Chromium
@@ -159,7 +159,7 @@ Session bus
 
 App
  Identity:       9 (org.chromium.Chromium)
- Enablements:    wayland, dbus, pipewire, pulseaudio
+ Enablements:    wayland, dbus, pipewire
  Groups:         video, dialout, plugdev
  Flags:          multiarch, compat, devel, userns, net, abstract, tty, mapuid, device, runtime, tmpdir
  Home:           /data/data/org.chromium.Chromium
@@ -215,8 +215,7 @@ App
   "enablements": {
     "wayland": true,
     "dbus": true,
-    "pipewire": true,
-    "pulse": true
+    "pipewire": true
   },
   "session_bus": {
     "see": null,
@@ -367,8 +366,7 @@ App
   "enablements": {
     "wayland": true,
     "dbus": true,
-    "pipewire": true,
-    "pulse": true
+    "pipewire": true
   },
   "session_bus": {
     "see": null,
@@ -566,8 +564,7 @@ func TestPrintPs(t *testing.T) {
     "enablements": {
       "wayland": true,
       "dbus": true,
-      "pipewire": true,
-      "pulse": true
+      "pipewire": true
     },
     "session_bus": {
       "see": null,