bin/git-push-log

   1 #!/usr/bin/env ruby
   2 # Usage: git-push-log
   3 # Show reflog information for all branch heads by date. This is useful on bare
   4 # remotes to determine when / who pushed and when.
   5 require 'time'
   6
   7 # change into git reflog dir to make everything easier
   8 ENV['GIT_DIR'] ||= `git rev-parse --git-dir`.chomp
   9 Dir.chdir(ENV['GIT_DIR'] + '/logs/refs/heads')
  10
  11 # find all reflog files
  12 logs = Dir['**'].select { |f| File.file?(f) }
  13
  14 # build master list of all reflog entries for all refs
  15 records = []
  16 logs.each do |log|
  17   entries = File.read(log).split("\n")
  18   entries.each do |line|
  19     before, after, rest = line.split(' ', 3)
  20     push_info, message = rest.split("\t", 1)
  21     if push_info =~ /^(.*?) (<.*>) (\d+) ([0-9+-]+)/
  22       name, email, timestamp, offset = $1, $2, $3.to_i, $4
  23       date = Time.at(timestamp)
  24     end
  25     records << [log, before, after, name, email, date]
  26   end
  27 end
  28
  29 # sort and output reflog entries with some formatting
  30 begin
  31   records = records.sort_by { |r| r.last }.reverse
  32   records.each do |ref, before, after, name, email, date|
  33     printf "%-20s %7s:%7s %-30s %s\n",
  34       date.iso8601, before[0,7], after[0,7], ref, email
  35   end
  36 rescue Errno::EPIPE
  37   exit 1
  38 end