Merge branch 'main' into glitch-soc/merge-upstream

Conflicts:
- `.github/dependabot.yml`:
  Updated upstream, removed in glitch-soc to disable noise.
  Kept removed.
- `CODE_OF_CONDUCT.md`:
  Upstream updated to a new version of the covenant, but I have not read it
  yet, so kept unchanged.
- `Gemfile.lock`:
  Not a real conflict, one upstream dependency updated textually too close to
  the glitch-soc only `hcaptcha` dependency.
  Applied upstream changes.
- `app/controllers/admin/base_controller.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/controllers/application_controller.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/controllers/disputes/base_controller.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/controllers/relationships_controller.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/controllers/statuses_cleanup_controller.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/helpers/application_helper.rb`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `app/javascript/mastodon/features/compose/components/compose_form.jsx`:
  Upstream added a highlight animation for onboarding, while we changed the
  max character limit.
  Applied our local changes on top of upstream's new version.
- `app/views/layouts/application.html.haml`:
  Minor conflict due to glitch-soc's theming system.
  Applied upstream changes.
- `stylelint.config.js`:
  Upstream added ignore paths, glitch-soc had extra ignore paths.
  Added the same paths as upstream.

app/workers/scheduler/accounts_statuses_cleanup_scheduler.rb

@@ -7,28 +7,30 @@ class Scheduler::AccountsStatusesCleanupScheduler
   # This limit is mostly to be nice to the fediverse at large and not
   # generate too much traffic.
   # This also helps limiting the running time of the scheduler itself.
-  MAX_BUDGET         = 150
+  MAX_BUDGET         = 300
 
-  # This is an attempt to spread the load across instances, as various
-  # accounts are likely to have various followers.
+  # This is an attempt to spread the load across remote servers, as
+  # spreading deletions across diverse accounts is likely to spread
+  # the deletion across diverse followers. It also helps each individual
+  # user see some effect sooner.
   PER_ACCOUNT_BUDGET = 5
 
   # This is an attempt to limit the workload generated by status removal
-  # jobs to something the particular instance can handle.
-  PER_THREAD_BUDGET  = 6
+  # jobs to something the particular server can handle.
+  PER_THREAD_BUDGET  = 5
 
-  # Those avoid loading an instance that is already under load
-  MAX_DEFAULT_SIZE    = 200
-  MAX_DEFAULT_LATENCY = 5
-  MAX_PUSH_SIZE       = 500
-  MAX_PUSH_LATENCY    = 10
-
-  # 'pull' queue has lower priority jobs, and it's unlikely that pushing
-  # deletes would cause much issues with this queue if it didn't cause issues
-  # with default and push. Yet, do not enqueue deletes if the instance is
-  # lagging behind too much.
-  MAX_PULL_SIZE       = 10_000
-  MAX_PULL_LATENCY    = 5.minutes.to_i
+  # These are latency limits on various queues above which a server is
+  # considered to be under load, causing the auto-deletion to be entirely
+  # skipped for that run.
+  LOAD_LATENCY_THRESHOLDS = {
+    default: 5,
+    push: 10,
+    # The `pull` queue has lower priority jobs, and it's unlikely that
+    # pushing deletes would cause much issues with this queue if it didn't
+    # cause issues with `default` and `push`. Yet, do not enqueue deletes
+    # if the instance is lagging behind too much.
+    pull: 5.minutes.to_i,
+  }.freeze
 
   sidekiq_options retry: 0, lock: :until_executed, lock_ttl: 1.day.to_i
 
@@ -42,7 +44,7 @@ class Scheduler::AccountsStatusesCleanupScheduler
       num_processed_accounts = 0
 
       scope = AccountStatusesCleanupPolicy.where(enabled: true)
-      scope.where(Account.arel_table[:id].gt(first_policy_id)) if first_policy_id.present?
+      scope = scope.where(id: first_policy_id...) if first_policy_id.present?
       scope.find_each(order: :asc) do |policy|
         num_deleted = AccountStatusesCleanupService.new.call(policy, [budget, PER_ACCOUNT_BUDGET].min)
         num_processed_accounts += 1 unless num_deleted.zero?
@@ -62,30 +64,31 @@ class Scheduler::AccountsStatusesCleanupScheduler
   end
 
   def compute_budget
+    # Each post deletion is a `RemovalWorker` job (on `default` queue), each
+    # potentially spawning many `ActivityPub::DeliveryWorker` jobs (on the `push` queue).
     threads = Sidekiq::ProcessSet.new.select { |x| x['queues'].include?('push') }.pluck('concurrency').sum
     [PER_THREAD_BUDGET * threads, MAX_BUDGET].min
   end
 
   def under_load?
-    queue_under_load?('default', MAX_DEFAULT_SIZE, MAX_DEFAULT_LATENCY) || queue_under_load?('push', MAX_PUSH_SIZE, MAX_PUSH_LATENCY) || queue_under_load?('pull', MAX_PULL_SIZE, MAX_PULL_LATENCY)
+    LOAD_LATENCY_THRESHOLDS.any? { |queue, max_latency| queue_under_load?(queue, max_latency) }
   end
 
   private
 
-  def queue_under_load?(name, max_size, max_latency)
-    queue = Sidekiq::Queue.new(name)
-    queue.size > max_size || queue.latency > max_latency
+  def queue_under_load?(name, max_latency)
+    Sidekiq::Queue.new(name).latency > max_latency
   end
 
   def last_processed_id
-    redis.get('account_statuses_cleanup_scheduler:last_account_id')
+    redis.get('account_statuses_cleanup_scheduler:last_policy_id')
   end
 
   def save_last_processed_id(id)
     if id.nil?
-      redis.del('account_statuses_cleanup_scheduler:last_account_id')
+      redis.del('account_statuses_cleanup_scheduler:last_policy_id')
     else
-      redis.set('account_statuses_cleanup_scheduler:last_account_id', id, ex: 1.hour.seconds)
+      redis.set('account_statuses_cleanup_scheduler:last_policy_id', id, ex: 1.hour.seconds)
     end
   end
 end