Allow for workspace renaming during exec handling

This change adds support for renaming a workspace when `exec` command
is being processed by keeping sway_workspace and pid_workspace names in
sync.

The change can be verified by running following command:

swaymsg exec <application>; swaymsg rename workspace number 1 to 5

Fixes: #3952

1 files changed, 4 insertions, 0 deletions

diff --git a/sway/commands/rename.c b/sway/commands/rename.c
index 88377b09..3b855fdf 100644
--- a/sway/commands/rename.c
+++ b/sway/commands/rename.c
@@ -9,6 +9,7 @@
 #include "sway/output.h"
 #include "sway/tree/container.h"
 #include "sway/tree/workspace.h"
+#include "sway/tree/root.h"
 
 static const char expected_syntax[] =
         "Expected 'rename workspace <old_name> to <new_name>' or "
@@ -89,6 +90,9 @@ struct cmd_results *cmd_rename(int argc, char **argv) {
         }
 
         sway_log(SWAY_DEBUG, "renaming workspace '%s' to '%s'", workspace->name, new_name);
+
+        root_rename_pid_workspaces(workspace->name, new_name);
+
         free(workspace->name);
         workspace->name = new_name;