Spike: store exceptions to be reported later

common/lib/dependabot/exception_capturer.rb

@@ -0,0 +1,34 @@
+# typed: strong
+# frozen_string_literal: true
+
+require "sorbet-runtime"
+
+module Dependabot
+  module ExceptionCapturer
+    extend T::Sig
+
+    # An array of captured exceptions stored for later retrieval
+    @captured_exceptions = T.let([], T::Array[StandardError])
+
+    sig { params(error: StandardError).void }
+    def self.capture_exception(error:)
+      @captured_exceptions << error
+    end
+
+    sig { params(block: T.proc.params(error: StandardError).void).void }
+    def self.handle_captured_exceptions(&block)
+      @captured_exceptions.each(&block)
+      clear_captured_exceptions
+    end
+
+    sig { returns(T::Array[StandardError]) }
+    def self.captured_exceptions
+      @captured_exceptions
+    end
+
+    sig { void }
+    def self.clear_captured_exceptions
+      @captured_exceptions = []
+    end
+  end
+end

common/lib/dependabot/pull_request_creator/message_builder.rb

@@ -887,6 +887,7 @@ def package_manager
 
       sig { params(method: String, err: StandardError).void }
       def suppress_error(method, err)
+        Dependabot::ExceptionCapturer.capture_exception(error: err)
         Dependabot.logger.error("Error while generating #{method}: #{err.message}")
         Dependabot.logger.error(err.backtrace&.join("\n"))
       end

updater/bin/update_files.rb

@@ -10,6 +10,7 @@
 require "dependabot/service"
 require "dependabot/setup"
 require "dependabot/update_files_command"
+require "dependabot/exception_capturer"
 require "debug" if ENV["DEBUG"]
 
 flamegraph = ENV.fetch("FLAMEGRAPH", nil)
@@ -31,7 +32,12 @@ class UpdaterKilledError < StandardError; end
       Dependabot::Environment.job_id,
       Dependabot::Environment.job_token
     )
-  Dependabot::Service.new(client: api_client).capture_exception(error: error, tags: tags)
+  service = Dependabot::Service.new(client: api_client)
+
+  Dependabot::ExceptionCapturer.handle_captured_exceptions do |exception|
+    service.capture_exception(error: exception, tags: tags)
+  end
+  service.capture_exception(error: error, tags: tags)
   exit
 end
 

updater/lib/dependabot/update_files_command.rb

@@ -51,6 +51,10 @@ def perform_job
         # successfully processed unless it actually raises.
         service.mark_job_as_processed(dependency_snapshot.base_commit_sha)
       end
+    ensure
+      Dependabot::ExceptionCapturer.handle_captured_exceptions do |exception|
+        service.capture_exception(error: exception, job: job)
+      end
     end
 
     private