module GetRepos

# File lib/getrepos/init.rb, line 4
  def init(filename)
    sample_json = %q({"repos": [
  // Nginx
  {"name": "nginx", "version": "1.9.12", "url": "http://nginx.org/download/nginx-1.9.12.tar.gz"},
  // Deps
  {"name": "luajit", "version": "2.1.0-beta2", "url": "http://luajit.org/download/LuaJIT-2.1.0-beta2.tar.gz", "path": "LuaJIT-2.1.0-beta2"},
  {"name": "lua-cjson", "version": "2.1.0.3", "url": "https://github.com/openresty/lua-cjson.git"},
  {"name": "hiredis", "version": "v0.13.3", "url": "https://github.com/redis/hiredis.git"},
  {"name": "libmaxminddb", "version": "1.1.4", "url": "https://github.com/maxmind/libmaxminddb/releases/download/1.1.4/libmaxminddb-1.1.4.tar.gz"},
  // Native modules
  {"name": "lua-nginx", "version": "v0.10.2", "url": "https://github.com/openresty/lua-nginx-module.git"},
  {"name": "lua-upstream-nginx", "version": "v0.05", "url": "https://github.com/openresty/lua-upstream-nginx-module.git"},
  {"name": "redis2-nginx", "version": "v0.12", "url": "https://github.com/openresty/redis2-nginx-module.git"},
  {"name": "set-misc-nginx", "version": "v0.30", "url": "https://github.com/openresty/set-misc-nginx-module.git"},
  {"name": "ngx_cache_purge", "version": "2.3", "url": "https://github.com/FRiCKLE/ngx_cache_purge/archive/2.3.tar.gz"},
  {"name": "nginx-push-stream", "version": "0.5.1", "url": "https://github.com/wandenberg/nginx-push-stream-module.git"},
  {"name": "ngx_http_auth_request", "version": "662785733552", "url": "http://mdounin.ru/hg/ngx_http_auth_request_module/archive/tip.tar.gz", "path": "ngx_http_auth_request_module-662785733552"},
  // Lua modules
  {"name": "lua-resty-core", "version": "v0.1.5", "url": "https://github.com/openresty/lua-resty-core.git"},
  {"name": "lua-resty-dns", "version": "v0.15", "url": "https://github.com/openresty/lua-resty-dns.git"},
  {"name": "lua-resty-redis", "version": "v0.22", "url": "https://github.com/openresty/lua-resty-redis.git"},
  {"name": "lua-resty-upstream-healthcheck", "version": "v0.04", "url": "https://github.com/openresty/lua-resty-upstream-healthcheck.git"},
  // Strange
  {"name": "log4j", "version": "1.2.17", "url": "https://repo1.maven.org/maven2/log4j/log4j/1.2.17/log4j-1.2.17.jar"}
]}
)

    File.write(filename, sample_json)
    puts "Generated '#{filename}'".light_green
  end

# File lib/getrepos/install.rb, line 6
def install(filename)
  FileUtils.mkdir_p('build/repos')
  repos = JSON.parse(open(filename).read, symbolize_names: true)

  unless is_valid_json_root?(repos)
    puts "Invalid JSON '#{filename}' (missing required field)".light_red
    exit 1
  end

  repos[:repos].each do |repo|
    unless is_valid_json_repo?(repo)
      puts "Invalid JSON entry '#{repo}' (missing required field)".light_red
      exit 1
    end

    puts
    puts 'Processing entry: '.light_cyan + repo.to_s
    if is_git_url?(repo[:url])
      # Git
      install_git(repo)
    else
      # Archive
      archive = URI(repo[:url]).path
      if archive.end_with?('.tar.gz')
        install_archive(repo, 'tar.gz')
      elsif archive.end_with?('.tgz')
        install_archive(repo, 'tgz')
      elsif archive.end_with?('.tar.bz2')
        install_archive(repo, 'tar.bz2')
      elsif archive.end_with?('.tar.xz')
        install_archive(repo, 'tar.xz')
      elsif archive.end_with?('.zip')
        install_archive(repo, 'zip')
      elsif archive.end_with?('.jar')
        install_archive(repo, 'jar')
      elsif archive.end_with?('.war')
        install_archive(repo, 'war')
      elsif archive.end_with?('.ear')
        install_archive(repo, 'ear')
      else
        puts "Unsupported file extension in URL '#{repo[:url]}'".light_red
        exit 1
      end
    end
  end
end

# File lib/getrepos/install.rb, line 77
def install_archive(repo, ext)
  dest_dir = "build/repos/#{repo[:name]}-#{repo[:version]}"
  archive_dest_file = "build/.archive/#{repo[:name]}-#{repo[:version]}.#{ext}"

  # Download
  if File.exists?(archive_dest_file)
    puts "Already downloaded '#{repo[:url]}' to '#{archive_dest_file}'".light_green
  else
    puts "Saving '#{repo[:url]}' to '#{archive_dest_file}'".light_cyan
    FileUtils.mkdir_p(File.dirname(archive_dest_file))
    IO.copy_stream(open(repo[:url]), archive_dest_file)
  end

  # Extract
  puts "Extracting and filtering '#{archive_dest_file}' to '#{dest_dir}'".light_cyan
  prep_dest_dir(dest_dir)
  ret = 0
  if ext == 'tar.gz' || ext == 'tgz'
    ret = run_local("tar xzf '#{archive_dest_file}' -C 'build/.tmprepo/'")
  elsif ext == 'tar.bz2'
    ret = run_local("tar xjf '#{archive_dest_file}' -C 'build/.tmprepo/'")
  elsif ext == 'tar.xz'
    ret = run_local("tar xJf '#{archive_dest_file}' -C 'build/.tmprepo/'")
  elsif ext == 'zip' || ext == 'jar' || ext == 'war' || ext == 'ear'
    ret = run_local("unzip -o '#{archive_dest_file}' -d 'build/.tmprepo/'")
  else
    puts "Unsupported file extension '#{ext}'".light_red
    exit 1
  end
  exit ret if ret != 0
  # Was the archive expanded to the usual directory 'name-version'?
  archive_usual_dir = "build/.tmprepo/#{repo[:name]}-#{repo[:version]}/#{repo[:path]}"
  if File.directory?(archive_usual_dir)
    FileUtils.mv(archive_usual_dir, dest_dir)
  else
    FileUtils.mv("build/.tmprepo/#{repo[:path]}", dest_dir)
  end
end

# File lib/getrepos/install.rb, line 53
def install_git(repo)
  dest_dir = "build/repos/#{repo[:name]}-#{repo[:version]}"
  gitbare_dest_dir = "build/.gitbare/#{repo[:name]}"

  # Clone
  if File.exists?("#{gitbare_dest_dir}/HEAD")
    puts "Updating cloned '#{repo[:url]}' inside '#{gitbare_dest_dir}'".light_green
    ret = run_local("cd #{gitbare_dest_dir} && git fetch -q")
    exit ret if ret != 0
  else
    puts "Cloning '#{repo[:url]}' to '#{gitbare_dest_dir}'".light_cyan
    ret = run_local("git clone -q --mirror '#{repo[:url]}' '#{gitbare_dest_dir}'")
    exit ret if ret != 0
  end

  # Extract
  puts "Extracting and filtering '#{gitbare_dest_dir}' to '#{dest_dir}'".light_cyan
  prep_dest_dir(dest_dir)
  ret = run_local("cd #{gitbare_dest_dir} &&
                  git archive '#{repo[:version]}' -- #{repo[:path]} | tar xf - -C '../../.tmprepo/'")
  exit ret if ret != 0
  FileUtils.mv("build/.tmprepo/#{repo[:path]}", dest_dir)
end