[meta-multimedia,RFC,2/2] wireplumber: Add recipe

diff --git a/meta-multimedia/recipes-multimedia/wireplumber/wireplumber_0.4.8.bb b/meta-multimedia/recipes-multimedia/wireplumber/wireplumber_0.4.8.bb
new file mode 100644
index 000000000..4d26e3360
--- /dev/null
+++ b/meta-multimedia/recipes-multimedia/wireplumber/wireplumber_0.4.8.bb
@@ -0,0 +1,140 @@ 
+SUMMARY    = "Session / policy manager implementation for PipeWire"
+HOMEPAGE   = "https://gitlab.freedesktop.org/pipewire/wireplumber"
+BUGTRACKER = "https://gitlab.freedesktop.org/pipewire/wireplumber/issues"
+AUTHOR     = "George Kiagiadakis <george.kiagiadakis@collabora.com>"
+SECTION    = "multimedia"
+
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=17d1fe479cdec331eecbc65d26bc7e77"
+
+DEPENDS = "glib-2.0 glib-2.0-native lua pipewire \
+    ${@bb.utils.contains("DISTRO_FEATURES", "gobject-introspection-data", "python3-native python3-lxml-native doxygen-native", "", d)} \
+"
+
+SRCREV = "e14bb72dcc85e2130d0ea96768e5ae3b375a041e"
+SRC_URI = "git://gitlab.freedesktop.org/pipewire/wireplumber.git;branch=master;protocol=https \
+           "
+
+S = "${WORKDIR}/git"
+
+inherit meson pkgconfig gobject-introspection systemd
+
+GIR_MESON_ENABLE_FLAG = 'enabled'
+GIR_MESON_DISABLE_FLAG = 'disabled'
+
+# Enable system-lua to let wireplumber use OE's lua.
+# Documentation needs python-sphinx, which is not in oe-core or meta-python2 for now.
+# elogind is not (yet) available in OE, so disable support.
+EXTRA_OEMESON += " \
+    -Ddoc=disabled \
+    -Dsystem-lua=true \
+    -Delogind=disabled \
+    -Dsystemd-system-unit-dir=${systemd_system_unitdir} \
+    -Dsystemd-user-unit-dir=${systemd_user_unitdir} \
+    -Dtests=false \
+"
+
+PACKAGECONFIG ??= "\
+    ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'systemd systemd-system-service', '', d)} \
+"
+
+PACKAGECONFIG[systemd] = "-Dsystemd=enabled,-Dsystemd=disabled,systemd"
+PACKAGECONFIG[systemd-system-service] = "-Dsystemd-system-service=true,-Dsystemd-system-service=false,systemd"
+# "systemd-user-service" packageconfig will only install service
+# files to rootfs but not enable them as systemd.bbclass
+# currently lacks the feature of enabling user services.
+PACKAGECONFIG[systemd-user-service] = "-Dsystemd-user-service=true,-Dsystemd-user-service=false,systemd"
+
+PACKAGESPLITFUNCS:prepend = " split_dynamic_packages "
+PACKAGESPLITFUNCS:append = " set_dynamic_metapkg_rdepends "
+
+WP_MODULE_SUBDIR = "wireplumber-0.4"
+
+python split_dynamic_packages () {
+    # Create packages for each WirePlumber module.
+    wp_module_libdir = d.expand('${libdir}/${WP_MODULE_SUBDIR}')
+    do_split_packages(d, wp_module_libdir, r'^libwireplumber-module-(.*)\.so$', d.expand('${PN}-modules-%s'), 'WirePlumber %s module', extra_depends='', recursive=False)
+}
+
+python set_dynamic_metapkg_rdepends () {
+    import os
+    import oe.utils
+
+    # Go through all generated WirePlumber module packages
+    # (excluding the main package and the -meta package itself)
+    # and add them to the -meta package as RDEPENDS.
+
+    base_pn = d.getVar('PN')
+
+    wp_module_pn = base_pn + '-modules'
+    wp_module_metapkg =  wp_module_pn + '-meta'
+
+    d.setVar('ALLOW_EMPTY:' + wp_module_metapkg, "1")
+    d.setVar('FILES:' + wp_module_metapkg, "")
+
+    blacklist = [ wp_module_pn, wp_module_metapkg ]
+    wp_module_metapkg_rdepends = []
+    pkgdest = d.getVar('PKGDEST')
+
+    for pkg in oe.utils.packages_filter_out_system(d):
+        if pkg in blacklist:
+            continue
+
+        is_wp_module_pkg = pkg.startswith(wp_module_pn)
+        if not is_wp_module_pkg:
+            continue
+
+        if pkg in wp_module_metapkg_rdepends:
+            continue
+
+        # See if the package is empty by looking at the contents of its
+        # PKGDEST subdirectory. If this subdirectory is empty, then then
+        # package is empty as well. Empty packages do not get added to
+        # the meta package's RDEPENDS.
+        pkgdir = os.path.join(pkgdest, pkg)
+        if os.path.exists(pkgdir):
+            dir_contents = os.listdir(pkgdir) or []
+        else:
+            dir_contents = []
+        is_empty = len(dir_contents) == 0
+        if not is_empty:
+            if is_wp_module_pkg:
+                wp_module_metapkg_rdepends.append(pkg)
+
+    d.setVar('RDEPENDS:' + wp_module_metapkg, ' '.join(wp_module_metapkg_rdepends))
+    d.setVar('DESCRIPTION:' + wp_module_metapkg, wp_module_pn + ' meta package')
+}
+
+PACKAGES =+ "\
+    libwireplumber \
+    ${PN}-default-config \
+    ${PN}-scripts \
+    ${PN}-modules \
+    ${PN}-modules-meta \
+"
+
+PACKAGES_DYNAMIC = "^${PN}-modules.*"
+
+SYSTEMD_SERVICE:${PN} = "wireplumber.service"
+CONFFILES:${PN} += " \
+    ${sysconfdir}/wireplumber/config.lua \
+    ${sysconfdir}/wireplumber/config.lua.d/* \
+"
+FILES:${PN} += " \
+    ${sysconfdir}/wireplumber/config.lua \
+    ${sysconfdir}/wireplumber/config.lua.d/* \
+"
+# Add pipewire to RRECOMMENDS, since WirePlumber expects a PipeWire daemon to
+# be present. While in theory any application that uses libpipewire can configure
+# itself to become a daemon, in practice, the PipeWire daemon is used.
+RRECOMMENDS:${PN} += "${PN}-scripts pipewire"
+
+FILES:libwireplumber = " \
+    ${libdir}/libwireplumber-*.so.* \
+"
+
+FILES:${PN}-scripts += "${datadir}/wireplumber/scripts/*"
+
+# Dynamic packages (see set_dynamic_metapkg_rdepends).
+FILES:${PN}-modules = ""
+RRECOMMENDS:${PN}-modules += "${PN}-modules-meta"