task :default => :git_push

task :git_push do
  wdir = Dir.pwd
  dir = "/tmp/share_repo.git"
  rm_rf dir
  mkdir_p dir
  cp "breakout.ini", dir
  cd dir
  run "git --bare init"
  rm 'hooks/post-receive'
  cd '..'
  ln_sf "#{wdir}/git-post-receive.rb", File.join(dir, 'hooks/post-receive')
  src_dir = "/tmp/gizmo_work.git"
  rm_rf src_dir
  mkdir_p src_dir
  cd src_dir
  run "git init"

  make_changes("test me", 5)
  run "git add ."
  git_commit_all "first commit\nblah blah"

  # second commit in first push
  make_changes("second test", 5)

  run "git add ."
  git_commit_all "second commit"

  run "git push #{dir} master"
  make_changes("new line with test", 5)
  git_commit_all "new changes 2"

  make_changes("_with_ -test- ", 5)
  git_commit_all "new changes 3"

  run "git push #{dir} master"
  
  run "git rm file0.txt"
  git_commit_all "removed file0.txt"

  run "git push #{dir} master"
  
  run "git checkout -b newb"
  run "git rm file2.txt"
  git_commit_all "newb first commit"
  
  run "git push #{dir} newb"

  run "git rm file3.txt"
  git_commit_all "newb second commit"
  
  run "git push #{dir}"
  run "git checkout master"
  
end

def run(cmd)
  puts "$ #{cmd}"
  system(cmd)
end

def make_changes(text, n_files)
  n_files.times do |i|
    File.open("file#{i}.txt", "a") do |f|
      f.write("#{i}." + text + "\n")
    end
  end
end

def git_commit_all(msg)
  run "git-commit -a -m '#{msg}'"
end