1 files changed, 65 insertions, 0 deletions
diff --git a/scripts/merge-simplecov b/scripts/merge-simplecov
new file mode 100755
index 00000000000..b59ff0ae9a0
--- /dev/null
+++ b/scripts/merge-simplecov
@@ -0,0 +1,65 @@
+#!/usr/bin/env ruby
+begin
+  load File.expand_path('../spring', __FILE__)
+rescue LoadError => e
+  raise unless e.message.include?('spring')
+end
+
+require 'simplecov'
+
+def read(file)
+  return unless File.exist?(file)
+  data = File.read(file)
+  return if data.nil? || data.length < 2
+  data
+end
+
+def load(file)
+  begin
+    JSON.parse(read(file))
+  rescue
+    {}
+  end
+end
+
+def files
+  Dir.glob(File.join(SimpleCov.coverage_path, '*', '.resultset.json'))
+end
+
+def resultsfiles
+  files.map { |file| load(file) }
+end
+
+def resultsets
+  resultsfiles.reduce({}, :merge)
+end
+
+def all_results
+  results = []
+  resultsets.each do |command_name, data|
+    result = SimpleCov::Result.from_hash(command_name => data)
+    # Only add result if the timeout is above the configured threshold
+    if (Time.now - result.created_at) < SimpleCov.merge_timeout
+      results << result
+    end
+  end
+  results
+end
+
+def merged_result
+  merged = {}
+  results = all_results
+  results.each do |result|
+    merged = result.original_result.merge_resultset(merged)
+  end
+  result = SimpleCov::Result.new(merged)
+  # Specify the command name
+  result.command_name = results.map(&:command_name).sort.join(", ")
+  result
+end
+
+SimpleCov.configure do
+  merge_timeout 7200
+end
+
+merged_result.format!