.bashrc

# ~ $ gh libressl libressl
# ~/src/github.com/libressl/libressl $ gh https://github.com/rails/rails
# ~/src/github.com/rails/rails $
gh () { cd $(_gh $@); }

_gh

#!/usr/bin/env ruby

require 'fileutils'

module Github

  GH_ROOT = "#{ENV["HOME"]}/src/github.com"

  def self.open(*args)
    clone_repo(repo_path(*args))
  end

  # Takes:
  #   "https://github.com/libressl/libressl"
  #   "github.com/libressl/libressl"
  #   "libressl/libressl"
  #   "libressl", "libressl"
  # Returns:
  #   "libressl/libressl"
  def self.repo_path(*args)
    repo = args[0]
    if args.size > 1
      repo = args.join("/")
    end
    repo.
      sub(/.*github.com[\/:]/, '').
      sub(/\.git$/, '')
  end

  # Takes:
  #   "libressl/libressl"
  # Returns
  #   "/Users/myuser/src/github.com/libressl/libressl"
  #   (after cloning if not present)
  def self.clone_repo(path)
    acct, _ = path.split('/')
    FileUtils.mkdir_p(GH_ROOT + "/" + acct)
    fullpath = GH_ROOT + "/" + path
    unless Dir.exists?(fullpath)
      system("git clone git@github.com:#{path}.git #{fullpath}")
    end
    fullpath
  end

end

__FILE__ == $0 and puts Github.open(*ARGV)