config: replace "policy" with "linking"

src/config/wireplumber.conf.d/linking.conf

@@ -1,36 +1,37 @@
-## The WirePlumber policy configuration
+## The WirePlumber linking configuration
 
 wireplumber.settings = {
-  ## Moves session items when metadata target.node changes
-  # policy.default.move = true
+  ## Moves session items when metadata ``target.object`` changes. Also responds to
+  ##`target.node` key. But `target.object` is the canonical key.
+  # linking.default.move = true
 
   ## Moves session items to the default device when it has changed
-  # policy.default.follow = true
+  # linking.default.follow = true
 
   ## Whether to forward the ports format of filter stream nodes to their
   ## associated filter device nodes. This is needed for application to stream
   ## surround audio if echo-cancel is enabled.
-  # policy.default.filter-forward-format = false
+  # linking.default.filter-forward-format = false
 
   ## Set to 'true' to disable channel splitting & merging on nodes and enable
   ## passthrough of audio in the same format as the format of the device.
   ## Note that this breaks JACK support; it is generally not recommended
-  # policy.default.audio-no-dsp = false
+  # linking.default.audio-no-dsp = false
 
   ## How much to lower the volume of lower priority streams when ducking
   ## note that this is a linear volume modifier (not cubic as in pulseaudio)
-  # policy.default.duck-level = 0.3
+  # linking.default.duck-level = 0.3
 
   ## Whether to store state on the filesystem.
-  # policy.bluetooth.use-persistent-storage = true
+  # linking.bluetooth.use-persistent-storage = true
 
   ## Whether to use headset profile in the presence of an input stream.
-  # policy.bluetooth.media-role.use-headset-profile = true
+  # linking.bluetooth.media-role.use-headset-profile = true
 
   ## Application names correspond to application.name in stream properties.
   ## Applications which do not set media.role but which should be considered
   ## for role based profile switching can be specified here.
-  policy.bluetooth.media-role.applications = [
+  linking.bluetooth.media-role.applications = [
     "Firefox", "Chromium input", "Google Chrome input", "Brave input",
     "Microsoft Edge input", "Vivaldi input", "ZOOM VoiceEngine",
     "Telegram Desktop", "telegram-desktop", "linphone", "Mumble",

src/scripts/lib/linking-config.lua

@@ -4,7 +4,7 @@
 --
 -- SPDX-License-Identifier: MIT
 
--- Policy settings manager
+-- linking settings manager
 
 local settings_manager = require ("settings-manager")
 
@@ -16,4 +16,5 @@ local defaults = {
   ["duck-level"] = 0.3,
 }
 
-return settings_manager.new ("policy.default.", defaults)
+return settings_manager.new ("linking.default.", defaults)
+

src/scripts/lib/linking-utils.lua

@@ -5,7 +5,7 @@
 
 -- SPDX-License-Identifier: MIT
 
--- Script is a Lua Module of policy Lua utility functions
+-- Script is a Lua Module of linking Lua utility functions
 
 local cutils = require ("common-utils")