[gnome-shell] config: Check runtime dependencies at runtime

[Marge Bot <marge-bot src gnome org>]

commit 5a9d365f849b1f081b8c00c3a7517d12866349f6
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed May 18 16:49:41 2022 +0200

    config: Check runtime dependencies at runtime
    
    Both bluetooth and screencast support are based on build checks
    right now. However in both cases, the dependency is only consumed
    at runtime via the typelib, so let's actually check for that.
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2297>

 js/misc/config.js.in | 12 ++++++++----
 js/misc/meson.build  |  2 --
 meson.build          |  9 ---------
 3 files changed, 8 insertions(+), 15 deletions(-)
---
diff --git a/js/misc/config.js.in b/js/misc/config.js.in
index 8cea70bc05..deb5139d17 100644
--- a/js/misc/config.js.in
+++ b/js/misc/config.js.in
@@ -1,17 +1,14 @@
 // -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+const pkg = imports.package;
 
 /* The name of this package (not localized) */
 var PACKAGE_NAME = '@PACKAGE_NAME@';
 /* The version of this package */
 var PACKAGE_VERSION = '@PACKAGE_VERSION@';
-/* 1 if gnome-bluetooth is available, 0 otherwise */
-var HAVE_BLUETOOTH = @HAVE_BLUETOOTH@;
 /* 1 if networkmanager is available, 0 otherwise */
 var HAVE_NETWORKMANAGER = @HAVE_NETWORKMANAGER@;
 /* 1 if soup2 should be used instead of soup3, 0 otherwise */
 var HAVE_SOUP2 = @HAVE_SOUP2@;
-/* 1 if recorder is enabled, 0 otherwise */
-var HAVE_RECORDER = @HAVE_RECORDER@;
 /* gettext package */
 var GETTEXT_PACKAGE = '@GETTEXT_PACKAGE@';
 /* locale dir */
@@ -21,3 +18,10 @@ var LIBEXECDIR = '@libexecdir@';
 var PKGDATADIR = '@datadir@/@PACKAGE_NAME@';
 /* g-i package versions */
 var LIBMUTTER_API_VERSION = '@LIBMUTTER_API_VERSION@'
+
+var HAVE_BLUETOOTH = pkg.checkSymbol('GnomeBluetooth', '3.0');
+var HAVE_RECORDER =
+    pkg.checkSymbol('Gst', '1.0') &&
+    imports.gi.Gst.init_check(null) &&
+    imports.gi.Gst.ElementFactory.find('pipewiresrc') &&
+    imports.gi.Gst.ElementFactory.find('filesrc');
diff --git a/js/misc/meson.build b/js/misc/meson.build
index 43d6d99c6c..2dff20decf 100644
--- a/js/misc/meson.build
+++ b/js/misc/meson.build
@@ -3,10 +3,8 @@ jsconf.set('PACKAGE_NAME', meson.project_name())
 jsconf.set('PACKAGE_VERSION', meson.project_version())
 jsconf.set('GETTEXT_PACKAGE', meson.project_name())
 jsconf.set('LIBMUTTER_API_VERSION', mutter_api_version)
-jsconf.set10('HAVE_BLUETOOTH', bt_dep.found())
 jsconf.set10('HAVE_NETWORKMANAGER', have_networkmanager)
 jsconf.set10('HAVE_SOUP2', have_soup2)
-jsconf.set10('HAVE_RECORDER', enable_recorder)
 jsconf.set('datadir', datadir)
 jsconf.set('libexecdir', libexecdir)
 
diff --git a/meson.build b/meson.build
index 7465790a43..26b404c294 100644
--- a/meson.build
+++ b/meson.build
@@ -32,8 +32,6 @@ startup_req = '>= 0.11'
 ibus_req = '>= 1.5.19'
 gnome_desktop_req = '>= 3.35.90'
 
-bt_req = '>= 3.9.0'
-gst_req = '>= 0.11.92'
 nm_req = '>= 1.10.4'
 secret_req = '>= 0.18'
 
@@ -93,13 +91,6 @@ x11_dep = dependency('x11')
 schemas_dep = dependency('gsettings-desktop-schemas', version: schemas_req)
 gnome_desktop_dep = dependency('gnome-desktop-3.0', version: gnome_desktop_req)
 
-bt_dep = dependency('gnome-bluetooth-3.0', version: bt_req, required: false)
-gst_dep = dependency('gstreamer-1.0', version: gst_req, required: false)
-gst_base_dep = dependency('gstreamer-base-1.0', required: false)
-pipewire_dep = dependency('libpipewire-0.3', required: false)
-
-enable_recorder = gst_dep.found() and gst_base_dep.found() and pipewire_dep.found()
-
 nm_deps = []
 if get_option('networkmanager')
   nm_deps += dependency('libnm', version: nm_req)