Module: Diggit::DevelopersActivity::ActivityExtractor

Extended by:
ActivityExtractor
Included in:
ActivityExtractor, Diggit::DevelopersActivity::Analyses::ActivityAnalysis
Defined in:
lib/diggit/developers_activity/activity_extractor.rb,
lib/diggit/developers_activity/activity_extractor/authors.rb,
lib/diggit/developers_activity/activity_extractor/modules.rb,
lib/diggit/developers_activity/activity_extractor/renames.rb

Overview

Set of functions extracting developers activity for a given set of commits

Defined Under Namespace

Modules: Authors, Modules, Renames

Instance Method Summary collapse

Instance Method Details

#extract_developers_activity(source, commits, commits_group_id = nil) ⇒ Object 



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# File 'lib/diggit/developers_activity/activity_extractor.rb', line 15

def extract_developers_activity(source, commits, commits_group_id = nil)
	return [] if commits.empty?
	contributions = Hash.new { |hash, key| hash[key] = { touches: 0, churn: 0 } }
	num_commits = 0

	commits.each do |commit|
		num_commits += 1

		author = Authors.get_author(commit)

		commit.parents.each do |parent|
			diff = parent.diff(commit, DIFF_OPTIONS)
			diff.find_similar!(DIFF_RENAME_OPTIONS)
			diff.each do |patch|
				maudule = Modules.get_patch_module(patch)
				next if maudule.nil?

				key = { author: author, 'module' => maudule }
				contributions[key] = { touches: contributions[key][:touches] + 1,
															churn: contributions[key][:churn] + patch.stat[0] + patch.stat[1] }
			end
		end
	end

	first_commit_date = commits[0].author[:time]

	# compute metrics and write to result
	developer_metrics = []
	contributions.each do |key, value|
		developer_metrics << { project: source.url, developer: key[:author], 'module' => key['module'],
			touches: value[:touches], churn: value[:churn], releaseDate: first_commit_date,
			commits_group_id: commits_group_id }
	end
	developer_metrics
end