module SimpleCov::ResultMerger
Public Class Methods
Clear out the previously cached .resultset
# File lib/simplecov/result_merger.rb, line 117 def clear_resultset @resultset = nil end
Merge two or more SimpleCov::Results into a new one with merged coverage data and the command_name for the result consisting of a join on all source result's names
# File lib/simplecov/result_merger.rb, line 67 def merge_results(*results) merged = SimpleCov::RawCoverage.merge_results(*results.map(&:original_result)) result = SimpleCov::Result.new(merged) # Specify the command name result.command_name = results.map(&:command_name).sort.join(", ") result end
Gets all SimpleCov::Results from cache, merges them and produces a new SimpleCov::Result with merged coverage data and the command_name for the result consisting of a join on all source result's names
# File lib/simplecov/result_merger.rb, line 80 def merged_result merge_results(*results) end
Gets the resultset hash and re-creates all included instances of SimpleCov::Result from that. All results that are above the SimpleCov.merge_timeout will be dropped. Returns an array of SimpleCov::Result items.
# File lib/simplecov/result_merger.rb, line 52 def results results = [] resultset.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
Loads the cached resultset from JSON and returns it as a Hash, caching it for subsequent accesses.
# File lib/simplecov/result_merger.rb, line 23 def resultset @resultset ||= begin data = stored_data if data begin JSON.parse(data) || {} rescue {} end else {} end end end
The path to the .resultset.json cache file
# File lib/simplecov/result_merger.rb, line 13 def resultset_path File.join(SimpleCov.coverage_path, ".resultset.json") end
# File lib/simplecov/result_merger.rb, line 17 def resultset_writelock File.join(SimpleCov.coverage_path, ".resultset.json.lock") end
Saves the given SimpleCov::Result in the resultset cache
# File lib/simplecov/result_merger.rb, line 85 def store_result(result) synchronize_resultset do # Ensure we have the latest, in case it was already cached clear_resultset new_set = resultset command_name, data = result.to_hash.first new_set[command_name] = data File.open(resultset_path, "w+") do |f_| f_.puts JSON.pretty_generate(new_set) end end true end
Returns the contents of the resultset cache as a string or if the file is missing or empty nil
# File lib/simplecov/result_merger.rb, line 39 def stored_data synchronize_resultset do return unless File.exist?(resultset_path) data = File.read(resultset_path) return if data.nil? || data.length < 2 data end end
Ensure only one process is reading or writing the resultset at any given time
# File lib/simplecov/result_merger.rb, line 101 def synchronize_resultset # make it reentrant return yield if defined?(@resultset_locked) && @resultset_locked begin @resultset_locked = true File.open(resultset_writelock, "w+") do |f| f.flock(File::LOCK_EX) yield end ensure @resultset_locked = false end end