Git Backup

git-backup

#!/usr/bin/env ruby

require "tmpdir"
require "fileutils"

PWD_ORIG = Dir.pwd
TMP_DIR = Dir.mktmpdir("git-backup")

def remote_basename
  if ARGV[0] =~ /\.git$/
    File.basename(ARGV[0])
  else
    raise "Canot determine remote basename"
  end
end

def target_fn
  if ARGV[1] and ARGV[1] =~ /^\//
    ARGV[1]
  elsif ARGV[1]
    File.join(PWD_ORIG, ARGV[1])
  else
    File.join(PWD_ORIG, remote_basename+"-bundle")
  end
end

Dir.chdir(TMP_DIR)

system *(%w[git clone --mirror] + [ ARGV[0] ])
Dir.chdir(File.join(TMP_DIR, remote_basename))
system *(%w[git bundle create] + [ target_fn ] + %w[--all])

Dir.chdir(PWD_ORIG)
FileUtils.rm_r TMP_DIR, secure: true