Change tootctl to use inline parallelization instead of Sidekiq (#11776)

- Remove --background option
- Add --concurrency(=5) option
- Add progress bars

lib/mastodon/cli_helper.rb

@@ -7,3 +7,52 @@ ActiveRecord::Base.logger    = dev_null
 ActiveJob::Base.logger       = dev_null
 HttpLog.configuration.logger = dev_null
 Paperclip.options[:log]      = false
+
+module Mastodon
+  module CLIHelper
+    def create_progress_bar(total = nil)
+      ProgressBar.create(total: total, format: '%c/%u |%b%i| %e')
+    end
+
+    def parallelize_with_progress(scope)
+      ActiveRecord::Base.configurations[Rails.env]['pool'] = options[:concurrency]
+
+      progress  = create_progress_bar(scope.count)
+      pool      = Concurrent::FixedThreadPool.new(options[:concurrency])
+      total     = Concurrent::AtomicFixnum.new(0)
+      aggregate = Concurrent::AtomicFixnum.new(0)
+
+      scope.reorder(nil).find_in_batches do |items|
+        futures = []
+
+        items.each do |item|
+          futures << Concurrent::Future.execute(executor: pool) do
+            ActiveRecord::Base.connection_pool.with_connection do
+              begin
+                progress.log("Processing #{item.id}") if options[:verbose]
+
+                result = yield(item)
+                aggregate.increment(result) if result.is_a?(Integer)
+              rescue => e
+                progress.log pastel.red("Error processing #{item.id}: #{e}")
+              ensure
+                progress.increment
+              end
+            end
+          end
+        end
+
+        total.increment(items.size)
+        futures.map(&:value)
+      end
+
+      progress.finish
+
+      [total.value, aggregate.value]
+    end
+
+    def pastel
+      @pastel ||= Pastel.new
+    end
+  end
+end