Disable parallel during travis CI

Author: kpaulisse

lib/octocatalog-diff/util/parallel.rb

@@ -57,7 +57,10 @@ def initialize(opts = {})
       # @param logger [Logger] Optional logger object
       # @param parallelized [Boolean] True for parallel processing, false for serial processing
       # @return [Array<Parallel::Result>] Parallel results (same order as tasks)
-      def self.run_tasks(task_array, logger = nil, parallelized = true)
+      #
+      # Note: Parallelization throws intermittent errors under travis CI, so it will be disabled by
+      # default for integration tests.
+      def self.run_tasks(task_array, logger = nil, parallelized = !ENV.key?('OCTOCATALOG_DIFF_TRAVIS_CI_DISABLE_PARALLEL'))
         # Create a throwaway logger object if one is not given
         logger ||= Logger.new(StringIO.new)
 

spec/octocatalog-diff/integration/integration_helper.rb

@@ -115,6 +115,9 @@ def self.integration(options = {})
       options[:parallel] = false if ENV['COVERAGE']
       options[:INTEGRATION] = true
 
+      # Disable parallel under travis CI
+      ENV['OCTOCATALOG_DIFF_TRAVIS_CI_DISABLE_PARALLEL'] = 'true' if ENV['TRAVIS']
+
       # Run octocatalog-diff CLI method. Capture stdout and stderr using 'strio'.
       logger, logger_string = OctocatalogDiff::Spec.setup_logger
       begin