use meson subdirectories

sway/meson.build

@@ -0,0 +1,29 @@
+sway_sources = sway_common + files(
+	'main.c',
+	'server.c',
+	'commands.c',
+	'commands/exit.c',
+	'ipc-json.c',
+	'ipc-server.c',
+	'desktop/output.c',
+	'desktop/xdg_shell_v6.c',
+	'tree/container.c',
+	'tree/layout.c',
+	'tree/workspace.c',
+)
+
+sway_deps = [
+	pixman,
+	wayland_server,
+	jsonc,
+	wlroots,
+	libcap,
+	math,
+]
+
+executable(
+	'sway',
+	sway_sources,
+	include_directories: [sway_inc],
+	dependencies: sway_deps
+)