cli: add commands to inspect the tree

src/cli.rs

@@ -14,6 +14,7 @@ mod run_privileged;
 pub mod screenshot;
 mod seat_test;
 mod set_log_level;
+mod tree;
 mod unlock;
 mod xwayland;
 
@@ -22,7 +23,7 @@ use {
         cli::{
             clients::ClientsArgs, color_management::ColorManagementArgs,
             damage_tracking::DamageTrackingArgs, idle::IdleCmd, input::InputArgs, randr::RandrArgs,
-            reexec::ReexecArgs, xwayland::XwaylandArgs,
+            reexec::ReexecArgs, tree::TreeArgs, xwayland::XwaylandArgs,
         },
         compositor::start_compositor,
         format::{Format, ref_formats},
@@ -89,6 +90,8 @@ pub enum Cmd {
     Reexec(ReexecArgs),
     /// Inspect/manipulate the connected clients.
     Clients(ClientsArgs),
+    /// Inspect the surface tree.
+    Tree(TreeArgs),
     #[cfg(feature = "it")]
     RunTests,
 }
@@ -248,6 +251,7 @@ pub fn main() {
         Cmd::Xwayland(a) => xwayland::main(cli.global, a),
         Cmd::ColorManagement(a) => color_management::main(cli.global, a),
         Cmd::Clients(a) => clients::main(cli.global, a),
+        Cmd::Tree(a) => tree::main(cli.global, a),
         #[cfg(feature = "it")]
         Cmd::RunTests => crate::it::run_tests(),
         Cmd::Reexec(a) => reexec::main(cli.global, a),