class Airbrake::Filters::GitRepositoryFilter

def attach_repository(notice)
  if @repository
    notice[:context][:repository] = @repository
    return
  end
  return unless File.exist?(@git_path)
  return unless @git_version
  @repository =
    if @git_version >= Gem::Version.new('2.7.0')
      `cd #{@git_path} && git config --get remote.origin.url`.chomp
    else
      "`git remote get-url` is unsupported in git #{@git_version}. " \
        'Consider an upgrade to 2.7+'
    end
  return unless @repository
  notice[:context][:repository] = @repository
end

def call(notice)
  return if notice[:context].key?(:repository)
  attach_repository(notice)
end

def detect_git_version
  return unless which('git')
  begin
    Gem::Version.new(`git --version`.split[2])
  rescue Errno::EAGAIN
    # Bugfix for the case when the system cannot allocate memory for
    # a fork() call: https://github.com/airbrake/airbrake-ruby/issues/680
    nil
  end
end

def initialize(root_directory)
  @git_path = File.join(root_directory, '.git')
  @repository = nil
  @git_version = detect_git_version
  @weight = 116
end

def which(cmd)
  exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']
  ENV['PATH'].split(File::PATH_SEPARATOR).find do |path|
    exts.find do |ext|
      exe = File.join(path, "#{cmd}#{ext}")
      File.executable?(exe) && !File.directory?(exe)
    end
  end
end