Merge pull request #1589 from bf4/add_rails_version_to_benchmark

Add rails_version to output

bin/bench

@@ -113,6 +113,7 @@ class BenchmarkDriver
     results = {}
     results['commit_hash'] = commit_hash
     results['version'] = runs_output.first['version']
+    results['rails_version'] = runs_output.first['rails_version']
     results['benchmark_run[environment]'] = environment
     results['runs'] = []
 

test/benchmark/benchmarking_support.rb

@@ -34,6 +34,7 @@ module Benchmark
       output = {
         label: label,
         version: ::ActiveModel::Serializer::VERSION.to_s,
+        rails_version: ::Rails.version.to_s,
         iterations_per_second: entry.ips,
         iterations_per_second_standard_deviation: entry.stddev_percentage,
         total_allocated_objects_per_iteration: count_total_allocated_objects(&block)