Add configure_schedules to App and Schedules to apply `ScheduleBuildS…

…ettings` to all schedules (#9514)

# Objective

- Fixes: #9508 
- Fixes: #9526 

## Solution

- Adds
```rust 
fn configure_schedules(&mut self, schedule_build_settings: ScheduleBuildSettings)
``` 
to `Schedules`, and `App` to simplify applying `ScheduleBuildSettings`
to all schedules.

---

## Migration Guide
- No breaking changes.
- Adds `Schedule::get_build_settings()` getter for the schedule's
`ScheduleBuildSettings`.
- Can replaced manual configuration of all schedules:
```rust
// Old 
for (_, schedule) in app.world.resource_mut::<Schedules>().iter_mut() {
    schedule.set_build_settings(build_settings);
}

// New
app.configure_schedules(build_settings);
```

crates/bevy_app/src/app.rs

@@ -5,7 +5,7 @@ use bevy_ecs::{
  schedule::{
  apply_state_transition, common_conditions::run_once as run_once_condition,
  run_enter_schedule, BoxedScheduleLabel, IntoSystemConfigs, IntoSystemSetConfigs,
- ScheduleLabel,
+ ScheduleBuildSettings, ScheduleLabel,
  },
 };
 use bevy_utils::{tracing::debug, HashMap, HashSet};
@@ -850,6 +850,17 @@ impl App {
 
  self
  }
+
+ /// Applies the provided [`ScheduleBuildSettings`] to all schedules.
+ pub fn configure_schedules(
+ &mut self,
+ schedule_build_settings: ScheduleBuildSettings,
+ ) -> &mut Self {
+ self.world
+ .resource_mut::<Schedules>()
+ .configure_schedules(schedule_build_settings);
+ self
+ }
 }
 
 fn run_once(mut app: App) {

crates/bevy_ecs/src/schedule/schedule.rs

@@ -103,6 +103,13 @@ impl Schedules {
  schedule.check_change_ticks(change_tick);
  }
  }
+
+ /// Applies the provided [`ScheduleBuildSettings`] to all schedules.
+ pub fn configure_schedules(&mut self, schedule_build_settings: ScheduleBuildSettings) {
+ for (_, schedule) in self.inner.iter_mut() {
+ schedule.set_build_settings(schedule_build_settings.clone());
+ }
+ }
 }
 
 fn make_executor(kind: ExecutorKind) -> Box<dyn SystemExecutor> {
@@ -200,6 +207,11 @@ impl Schedule {
  self
  }
 
+ /// Returns the schedule's current `ScheduleBuildSettings`.
+ pub fn get_build_settings(&self) -> ScheduleBuildSettings {
+ self.graph.settings.clone()
+ }
+
  /// Returns the schedule's current execution strategy.
  pub fn get_executor_kind(&self) -> ExecutorKind {
  self.executor.kind()