pipewire: simplify outputs drastically

This drops a whole bunch of patches we carry to avoid output cycles, at the cost of +1MB to closure size
on systems that don't already have Pipewire, which are becoming rarer and rarer.

nixos/modules/services/desktops/pipewire/pipewire.nix

···
     environment.systemPackages = [ cfg.package ]
                                  ++ lib.optional cfg.jack.enable jack-libs;
 
-    systemd.packages = [ cfg.package ]
-                       ++ lib.optional cfg.pulse.enable cfg.package.pulse;
+    systemd.packages = [ cfg.package ];
 
     # PipeWire depends on DBUS but doesn't list it. Without this booting
     # into a terminal results in the service crashing with an error.
···
     environment.etc."alsa/conf.d/49-pipewire-modules.conf" = mkIf cfg.alsa.enable {
       text = ''
         pcm_type.pipewire {
-          libs.native = ${cfg.package.lib}/lib/alsa-lib/libasound_module_pcm_pipewire.so ;
+          libs.native = ${cfg.package}/lib/alsa-lib/libasound_module_pcm_pipewire.so ;
           ${optionalString enable32BitAlsaPlugins
-            "libs.32Bit = ${pkgs.pkgsi686Linux.pipewire.lib}/lib/alsa-lib/libasound_module_pcm_pipewire.so ;"}
+            "libs.32Bit = ${pkgs.pkgsi686Linux.pipewire}/lib/alsa-lib/libasound_module_pcm_pipewire.so ;"}
         }
         ctl_type.pipewire {
-          libs.native = ${cfg.package.lib}/lib/alsa-lib/libasound_module_ctl_pipewire.so ;
+          libs.native = ${cfg.package}/lib/alsa-lib/libasound_module_ctl_pipewire.so ;
           ${optionalString enable32BitAlsaPlugins
-            "libs.32Bit = ${pkgs.pkgsi686Linux.pipewire.lib}/lib/alsa-lib/libasound_module_ctl_pipewire.so ;"}
+            "libs.32Bit = ${pkgs.pkgsi686Linux.pipewire}/lib/alsa-lib/libasound_module_ctl_pipewire.so ;"}
         }
       '';
     };

pkgs/applications/networking/browsers/firefox-bin/default.nix

···
     pciutils
   ];
   appendRunpaths = [
-    "${pipewire.lib}/lib"
+    "${pipewire}/lib"
   ];
   # Firefox uses "relrhack" to manually process relocations from a fixed offset
   patchelfFlags = [ "--no-clobber-old-sections" ];

pkgs/development/libraries/pipewire/0040-alsa-profiles-use-libdir.patch

···
-diff --git a/meson.build b/meson.build
-index 99a4b2d1..d4a4cda7 100644
---- a/meson.build
-+++ b/meson.build
-@@ -55,7 +55,7 @@ endif
- 
- spa_plugindir = pipewire_libdir / spa_name
- 
--alsadatadir = pipewire_datadir / 'alsa-card-profile' / 'mixer'
-+alsadatadir = pipewire_libdir / '..' / 'share' / 'alsa-card-profile' / 'mixer'
- 
- pipewire_headers_dir = pipewire_name / 'pipewire'
- 

pkgs/development/libraries/pipewire/0050-pipewire-pulse-path.patch

···
-diff --git a/meson_options.txt b/meson_options.txt
-index 961ae2a76..692b84dfd 100644
---- a/meson_options.txt
-+++ b/meson_options.txt
-@@ -179,6 +179,9 @@ option('udev',
- option('udevrulesdir',
-        type : 'string',
-        description : 'Directory for udev rules (defaults to /lib/udev/rules.d)')
-+option('pipewire_pulse_prefix',
-+       type : 'string',
-+       description: 'Install directory for the pipewire-pulse daemon')
- option('systemd-system-unit-dir',
-        type : 'string',
-        description : 'Directory for system systemd units (defaults to /usr/lib/systemd/system)')
-diff --git a/src/daemon/systemd/user/meson.build b/src/daemon/systemd/user/meson.build
-index d17f3794f..34afe4f1a 100644
---- a/src/daemon/systemd/user/meson.build
-+++ b/src/daemon/systemd/user/meson.build
-@@ -9,7 +9,7 @@ install_data(
- 
- systemd_config = configuration_data()
- systemd_config.set('PW_BINARY', pipewire_bindir / 'pipewire')
--systemd_config.set('PW_PULSE_BINARY', pipewire_bindir / 'pipewire-pulse')
-+systemd_config.set('PW_PULSE_BINARY', get_option('pipewire_pulse_prefix') / 'bin/pipewire-pulse')
- 
- configure_file(input : 'pipewire.service.in',
-                output : 'pipewire.service',

pkgs/development/libraries/pipewire/0080-pipewire-config-dir.patch

···
-diff --git a/meson.build b/meson.build
-index b6b4553b..f21c29d8 100644
---- a/meson.build
-+++ b/meson.build
-@@ -37,7 +37,10 @@ pipewire_localedir = prefix / get_option('localedir')
- pipewire_sysconfdir = prefix / get_option('sysconfdir')
- 
- pipewire_configdir = pipewire_sysconfdir / 'pipewire'
--pipewire_confdatadir = pipewire_datadir / 'pipewire'
-+pipewire_confdatadir = get_option('pipewire_confdata_dir')
-+if pipewire_confdatadir == ''
-+  pipewire_confdatadir = pipewire_datadir / 'pipewire'
-+endif
- modules_install_dir = pipewire_libdir / pipewire_name
- 
- if host_machine.system() == 'linux'
-diff --git a/meson_options.txt b/meson_options.txt
-index 9bc33fcd..e4bd2dc1 100644
---- a/meson_options.txt
-+++ b/meson_options.txt
-@@ -61,6 +61,9 @@ option('jack-devel',
- option('libjack-path',
-        description: 'Where to install the libjack.so library',
-        type: 'string')
-+option('pipewire_confdata_dir',
-+       type: 'string',
-+       description: 'Directory for pipewire default configuration (defaults to /usr/share/pipewire)')
- option('spa-plugins',
-        description: 'Enable spa plugins integration',
-        type: 'feature',

pkgs/development/libraries/pipewire/0090-pipewire-config-template-paths.patch

···
-diff --git a/src/daemon/minimal.conf.in b/src/daemon/minimal.conf.in
-index 9c885a38f..c474eb45d 100644
---- a/src/daemon/minimal.conf.in
-+++ b/src/daemon/minimal.conf.in
-@@ -111,7 +111,7 @@ context.modules = [
-             # access.allowed to list an array of paths of allowed
-             # apps.
-             #access.allowed = [
--            #    @session_manager_path@
-+            #    <session_manager_path>
-             #]
- 
-             # An array of rejected paths.
-@@ -359,5 +359,5 @@ context.exec = [
-     # It can be interesting to start another daemon here that listens
-     # on another address with the -a option (eg. -a tcp:4713).
-     #
--    #@pulse_comment@{ path = "@pipewire_path@" args = "-c pipewire-pulse.conf" }
-+    #@pulse_comment@{ path = "<pipewire_path>" args = "-c pipewire-pulse.conf" }
- ]
-diff --git a/src/daemon/pipewire.conf.in b/src/daemon/pipewire.conf.in
-index 697bf094d..3a7b54ddd 100644
---- a/src/daemon/pipewire.conf.in
-+++ b/src/daemon/pipewire.conf.in
-@@ -294,7 +294,7 @@ context.exec = [
-     # but it is better to start it as a systemd service.
-     # Run the session manager with -h for options.
-     #
--    @sm_comment@{ path = "@session_manager_path@" args = "@session_manager_args@"
-+    @sm_comment@{ path = "<session_manager_path>" args = "@session_manager_args@"
-     @sm_comment@  condition = [ { exec.session-manager = null } { exec.session-manager = true } ] }
-     #
-     # You can optionally start the pulseaudio-server here as well
-@@ -302,6 +302,6 @@ context.exec = [
-     # It can be interesting to start another daemon here that listens
-     # on another address with the -a option (eg. -a tcp:4713).
-     #
--    @pulse_comment@{ path = "@pipewire_path@" args = "-c pipewire-pulse.conf"
-+    @pulse_comment@{ path = "<pipewire_path>" args = "-c pipewire-pulse.conf"
-     @pulse_comment@  condition = [ { exec.pipewire-pulse = null } { exec.pipewire-pulse = true } ] }
- ]

pkgs/development/libraries/pipewire/0095-spa-data-dir.patch

···
-diff --git a/meson.build b/meson.build
-index 56599ebd1..3bed2d3e3 100644
---- a/meson.build
-+++ b/meson.build
-@@ -54,7 +54,7 @@ else
- endif
- 
- spa_plugindir = pipewire_libdir / spa_name
--spa_datadir = pipewire_datadir / spa_name
-+spa_datadir = pipewire_libdir / spa_name
- 
- alsadatadir = pipewire_datadir / 'alsa-card-profile' / 'mixer'

pkgs/development/libraries/pipewire/default.nix

···
 
     outputs = [
       "out"
-      "lib"
-      "pulse"
       "jack"
       "dev"
       "doc"
···
     };
 
     patches = [
-      # Break up a dependency cycle between outputs.
-      ./0040-alsa-profiles-use-libdir.patch
-      # Change the path of the pipewire-pulse binary in the service definition.
-      ./0050-pipewire-pulse-path.patch
       # Load libjack from a known location
       ./0060-libjack-path.patch
       # Move installed tests into their own output.
       ./0070-installed-tests-path.patch
-      # Add option for changing the config install directory
-      ./0080-pipewire-config-dir.patch
-      # Remove output paths from the comments in the config templates to break dependency cycles
-      ./0090-pipewire-config-template-paths.patch
-      # Place SPA data files in lib output to avoid dependency cycles
-      ./0095-spa-data-dir.patch
     ];
 
     strictDeps = true;
···
       "-Dudevrulesdir=lib/udev/rules.d"
       "-Dinstalled_tests=enabled"
       "-Dinstalled_test_prefix=${placeholder "installedTests"}"
-      "-Dpipewire_pulse_prefix=${placeholder "pulse"}"
       "-Dlibjack-path=${placeholder "jack"}/lib"
-      "-Dlibv4l2-path=${placeholder "out"}/lib"
       "-Dlibcamera=${mesonEnableFeature libcameraSupport}"
       "-Dlibffado=${mesonEnableFeature ffadoSupport}"
       "-Droc=${mesonEnableFeature rocSupport}"
···
       "-Dgstreamer=${mesonEnableFeature gstreamerSupport}"
       "-Dsystemd-system-service=${mesonEnableFeature enableSystemd}"
       "-Dudev=${mesonEnableFeature (!enableSystemd)}"
-      "-Dudevrulesdir=${placeholder "out"}/lib/udev/rules.d"
       "-Dffmpeg=${mesonEnableFeature ffmpegSupport}"
       "-Dbluez5=${mesonEnableFeature bluezSupport}"
       "-Dbluez5-backend-hsp-native=${mesonEnableFeature nativeHspSupport}"
···
       "-Dbluez5-codec-lc3=${mesonEnableFeature bluezSupport}"
       "-Dbluez5-codec-ldac=${mesonEnableFeature ldacbtSupport}"
       "-Dsysconfdir=/etc"
-      "-Dpipewire_confdata_dir=${placeholder "lib"}/share/pipewire"
       "-Draop=${mesonEnableFeature raopSupport}"
       "-Dsession-managers="
       "-Dvulkan=enabled"
···
     '';
 
     postInstall = ''
-      ${lib.optionalString enableSystemd ''
-        moveToOutput "share/systemd/user/pipewire-pulse.*" "$pulse"
-        moveToOutput "lib/systemd/user/pipewire-pulse.*" "$pulse"
-      ''}
-
-      rm $out/bin/pipewire-pulse
-      mkdir -p $pulse/bin
-      ln -sf $out/bin/pipewire $pulse/bin/pipewire-pulse
-
       moveToOutput "bin/pw-jack" "$jack"
     '';
 

pkgs/games/steam/fhsenv.nix

···
     xorg.libXfixes
     libGL
     libva
-    pipewire.lib
+    pipewire
 
     # steamwebhelper
     harfbuzz