require "grit" class GraphCommit attr_accessor :time, :space attr_accessor :refs def self.to_graph(project) @repo = project.repo commits = Grit::Commit.find_all(@repo, nil, {:max_count => 650}) ref_cache = {} commits.map! {|c| GraphCommit.new(Commit.new(c))} commits.each { |commit| commit.add_refs(ref_cache, @repo) } days = GraphCommit.index_commits(commits) @days_json = days.compact.collect{|d| [d.day, d.strftime("%b")] }.to_json @commits_json = commits.map(&:to_graph_hash).to_json return @days_json, @commits_json end # Method is adding time and space on the # list of commits. As well as returns date list # corelated with time set on commits. # # @param [Array] comits to index # # @return [Array] list of commit dates corelated with time on commits def self.index_commits(commits) days, heads = [], [] map = {} commits.reverse.each_with_index do |c,i| c.time = i days[i] = c.committed_date map[c.id] = c heads += c.refs unless c.refs.nil? end heads.select!{|h| h.is_a? Grit::Head or h.is_a? Grit::Remote} # sort heads so the master is top and current branches are closer heads.sort! do |a,b| if a.name == "master" -1 elsif b.name == "master" 1 else b.commit.committed_date <=> a.commit.committed_date end end j = 0 heads.each do |h| if map.include? h.commit.id then j = mark_chain(j+=1, map[h.commit.id], map) end end days end # Add space mark on commit and its parents # # @param [Fixnum] space (row on the graph) to be set # @param [GraphCommit] the commit object. # @param [Hash] map of commits # # @return [Fixnum] max space used. def self.mark_chain(mark, commit, map) commit.space = mark if commit.space == 0 m1 = mark - 1 marks = commit.parents.collect do |p| if map.include? p.id and map[p.id].space == 0 then mark_chain(m1 += 1, map[p.id],map) else m1 + 1 end end marks << mark marks.compact.max end def initialize(commit) @_commit = commit @time = -1 @space = 0 end def method_missing(m, *args, &block) @_commit.send(m, *args, &block) end def to_graph_hash h = {} h[:parents] = self.parents.collect do |p| [p.id,0,0] end h[:author] = author.name h[:time] = time h[:space] = space h[:refs] = refs.collect{|r|r.name}.join(" ") unless refs.nil? h[:id] = sha h[:date] = date h[:message] = message.force_encoding("UTF-8") h[:login] = author.email h end def add_refs(ref_cache, repo) if ref_cache.empty? repo.refs.each do |ref| ref_cache[ref.commit.id] ||= [] ref_cache[ref.commit.id] << ref end end @refs = ref_cache[@_commit.id] if ref_cache.include?(@_commit.id) @refs ||= [] end end