def self.blame(repo, commit, file)
data = repo.git.blame({:p => true}, commit, '--', file)
commits = {}
blames = []
info = nil
data.split("\n").each do |line|
parts = line.split(/\s+/, 2)
case parts.first
when /^[0-9A-Fa-f]{40}$/
case line
when /^([0-9A-Fa-f]{40}) (\d+) (\d+) (\d+)$/
_, id, origin_line, final_line, group_lines = *line.match(/^([0-9A-Fa-f]{40}) (\d+) (\d+) (\d+)$/)
info = {:id => id}
blames << [nil, []]
when /^([0-9A-Fa-f]{40}) (\d+) (\d+)$/
_, id, origin_line, final_line = *line.match(/^([0-9A-Fa-f]{40}) (\d+) (\d+)$/)
info = {:id => id}
end
when /^(author|committer)/
case parts.first
when /^(.+)-mail$/
info["#{$1}_email".intern] = parts.last
when /^(.+)-time$/
info["#{$1}_date".intern] = Time.at(parts.last.to_i)
when /^(author|committer)$/
info[$1.intern] = parts.last
end
when /^filename/
info[:filename] = parts.last
when /^summary/
info[:summary] = parts.last
when ''
c = commits[info[:id]]
unless c
c = Commit.create(repo, :id => info[:id],
:author => Actor.from_string(info[:author] + ' ' + info[:author_email]),
:authored_date => info[:author_date],
:committer => Actor.from_string(info[:committer] + ' ' + info[:committer_email]),
:committed_date => info[:committer_date],
:message => info[:summary])
commits[info[:id]] = c
end
_, text = *line.match(/^\t(.*)$/)
blames.last[0] = c
blames.last[1] << text
info = nil
end
end
blames
end