git - Grit: how to to tell between two commits which is newer? -


i'd able tell between 2 grit::commit objects, newer. mean newer if commit_a parent (or parent of parent,etc) of commit_b, commit_b newer. assumes commit_a , commit_b on same branch.

i thought using grit::commit#date(), think this'll inaccurate.

any ideas?

here ended implementing. see comments explanation.

performance dog slow, worse when using repo.git.rev_list(via method_missing).

require 'grit'  module grit      class commit          # returns true if commits in +commits+ decendants of calling commit. true         # means 1 or more commits in +commits+ newer.         def has_decendant_in? *commits              total_commits = commits.flatten             raise argumenterror "at least 1 commit required." if total_commits.empty?             total_commits.each |commit|                 return true if repo.commits_between(commit.id, id).empty?             end             return false         end          # returns array of commits tie being newest commits. ties can         # occur when commits in different branches.         def self.newest *commits             oldest_commits = []             total_commits = commits.flatten             raise argumenterror "at least 1 commit required." if total_commits.empty?             (total_commits).each |commit|                 if commit.has_decendant_in?(total_commits - [commit])                     oldest_commits << commit                  end             end             return total_commits - oldest_commits         end      end  end

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