Standardise debug variables

This makes all debug options stored in a single struct rather than in
various places, changes/fixes the behaviour of existing options, and
introduces some new options.

* Fixes damage issues with `-Drender-tree` texture (by removing scissor)
* Offsets the render tree overlay's `y` position for those who have
swaybar at the top
* Replaces `-Ddamage=rerender` with `-Dnodamage`
* Replaces `-Ddamage=highlight` with `-Dhighlight-damage`
* Replaces `-Dtxn-debug` with `-Dtxn-wait`
* Introduces `-Dnoatomic`
* Removes the `create_time` and `ms_arranging` figures from transactions
and the log message. Transactions are created after arranging and the
create time is of no significance.
* Fixes `-Dtxn-debug` (now `-Dtxn-wait`) not working.

1 files changed, 4 insertions, 3 deletions

diff --git a/sway/server.c b/sway/server.c
index e8dc63be..00acaa01 100644
--- a/sway/server.c
+++ b/sway/server.c
@@ -128,10 +128,11 @@ bool server_init(struct sway_server *server) {
                 return false;
         }
 
-        const char *debug = getenv("SWAY_DEBUG");
-        if (debug != NULL && strcmp(debug, "txn_timings") == 0) {
-                server->debug_txn_timings = true;
+        // This may have been set already via -Dtxn-timeout
+        if (!server->txn_timeout_ms) {
+                server->txn_timeout_ms = 200;
         }
+
         server->dirty_containers = create_list();
         server->transactions = create_list();