class Gitlab::Git::Blame

Attributes

blames[R]
lines[R]

Public Class Methods

new(repository, sha, path) click to toggle source
# File lib/gitlab_git/blame.rb, line 10
def initialize(repository, sha, path)
  @repo = repository
  @sha = sha
  @path = path
  @lines = []
  @blames = load_blame
end

Public Instance Methods

each() { |commit, line| ... } click to toggle source
# File lib/gitlab_git/blame.rb, line 18
def each
  @blames.each do |blame|
    yield(
      Gitlab::Git::Commit.new(blame.commit),
      blame.line
    )
  end
end

Private Instance Methods

load_blame() click to toggle source
# File lib/gitlab_git/blame.rb, line 29
def load_blame
  cmd = %W(git --git-dir=#{@repo.path} blame -p #{@sha} -- #{@path})
  # Read in binary mode to ensure ASCII-8BIT
  raw_output = IO.popen(cmd, 'rb') {|io| io.read }
  output = encode_utf8(raw_output)
  process_raw_blame output
end
process_raw_blame(output) click to toggle source
# File lib/gitlab_git/blame.rb, line 37
def process_raw_blame(output)
  lines, final = [], []
  info, commits = {}, {}

  # process the output
  output.split("\n").each do |line|
    if line[0, 1] == "\t"
      lines << line[1, line.size]
    elsif m = /^(\w{40}) (\d+) (\d+)/.match(line)
      commit_id, old_lineno, lineno = m[1], m[2].to_i, m[3].to_i
      commits[commit_id] = nil if !commits.key?(commit_id)
      info[lineno] = [commit_id, old_lineno]
    end
  end

  # load all commits in single call
  commits.keys.each do |key|
    commits[key] = @repo.lookup(key)
  end

  # get it together
  info.sort.each do |lineno, (commit_id, old_lineno)|
    commit = commits[commit_id]
    final << BlameLine.new(lineno, old_lineno, commit, lines[lineno - 1])
  end

  @lines = final
end