build: use build_by_default in cargo-build target

build_always_stale is deprecated and build_by_default can be
used now that we don't have build.rs.

Requires that we list our sources.

meson.build

@@ -67,6 +67,8 @@ subdir('podcasts-gtk/resources')
 cargo_script = find_program('scripts/cargo.sh')
 test_script = find_program('scripts/test.sh')
 
+subdir('podcasts-data/src')
+subdir('podcasts-downloader/src')
 subdir('podcasts-gtk/src')
 
 meson.add_dist_script(

podcasts-data/src/meson.build

@@ -0,0 +1,19 @@
+data_sources = files(
+  'models/episode.rs',
+  'models/mod.rs',
+  'models/new_episode.rs',
+  'models/new_show.rs',
+  'models/new_source.rs',
+  'models/show.rs',
+  'models/source.rs',
+  'database.rs',
+  'dbqueries.rs',
+  'errors.rs',
+  'feed.rs',
+  'lib.rs',
+  'opml.rs',
+  'parser.rs',
+  'pipeline.rs',
+  'schema.rs',
+  'utils.rs',
+)

podcasts-downloader/src/meson.build

@@ -0,0 +1,5 @@
+downloader_sources = files(
+  'downloader.rs',
+  'errors.rs',
+  'lib.rs'
+)

podcasts-gtk/src/meson.build

@@ -31,8 +31,39 @@ run_command(
   check: true
 )
 
+podcasts_sources = files(
+  'stacks/content.rs',
+  'stacks/home.rs',
+  'stacks/mod.rs',
+  'stacks/populated.rs',
+  'stacks/show.rs',
+  'widgets/aboutdialog.rs',
+  'widgets/appnotif.rs',
+  'widgets/base_view.rs',
+  'widgets/empty.rs',
+  'widgets/home_view.rs',
+  'widgets/mod.rs',
+  'widgets/player.rs',
+  'widgets/show.rs',
+  'widgets/show_menu.rs',
+  'widgets/shows_view.rs',
+  'app.rs',
+  'headerbar.rs',
+  'i18n.rs',
+  'main.rs',
+  'manager.rs',
+  'prefs.rs',
+  'settings.rs',
+  'utils.rs'
+)
+
 cargo_release = custom_target('cargo-build',
-                        build_always_stale: true,
+                        build_by_default: true,
+                        input: [
+                                data_sources,
+                                downloader_sources,
+                                podcasts_sources,
+                               ],
                         output: ['gnome-podcasts'],
                         install: true,
                         install_dir: podcasts_bindir,