get_work_hours_commits.rb

require "date"
require "json"

def log_to_hash
  commits = []
  res = %x(git log --date=iso --pretty=format:'{\"short_hash\":\"%h\",\"name\":\"%an\",\"email\":\"%ae\",\"date\":\"%ad\",\"subject\":\"%s\"}')
  res.each_line do |line|
    commits << JSON.parse(line, {symbolize_names: true})
  end
  return commits
end


def get_commits_in_work_hours(commits)
  work_commits = []

  return commits.select do |com|
    date = com[:date]
    day = DateTime.parse(date)
    start_hour = DateTime.new(day.year, day.month, day.day, 8, 0, 0, 0)
    end_hour = DateTime.new(day.year, day.month, day.day, 17, 0, 0, 0)
   (start_hour.to_time.to_i..end_hour.to_time.to_i) === day.to_time.to_i
  end
end

def output(all, work)
  puts "Commit in business hours: "
  work.each do |c|
    puts "#{c[:name]} #{c[:date]} #{c[:short_hash]} #{c[:subject]}"
  end

  3.times {puts}
  puts '###############'
  puts "# Commits at work: #{work.size}"
  puts "# Commits at home: #{all.size-work.size}"
  puts '###############'
end


def print_work_hashes(commits)
  commits.each {|c| puts c[:short_hash]}
end

res = log_to_hash()
work_commits = get_commits_in_work_hours(res)
# output(res,work_commits)
print_work_hashes(work_commits)

print_work_hashes() can be used with xargs and git show to see the changes in the commits: ruby get_work_hours_commits.rb | xargs git show