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path: root/lib/license/finder/ext/nuget.rb
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# frozen_string_literal: true

module LicenseFinder
  class Nuget
    def prepare
      shell.execute(['apt-get', :update, '-q'])
      shell.execute(['apt-get', :install, '-y', '--no-install-recommends', 'mono-complete'])
      shell.execute([:mkdir, '-p', vendor_path.to_s]) unless vendor_path.exist?

      Dir.chdir(project_path) do
        shell.execute([
          :mono, '/usr/local/bin/nuget.exe',
          :restore, detected_package_path,
          '-Verbosity detailed',
          '-PackagesDirectory', vendor_path,
          '-NoCache',
          '-LockedMode'
        ])
      end
    end

    def current_packages
      dependencies.map do |dependency|
        nupkg = vendor_path.glob("**/#{dependency.name}*.nupkg")[0]
        ::LicenseFinder::Dependency.new(
          'NuGet',
          dependency.name,
          dependency.version,
          spec_licenses: license_urls(dependency, nupkg),
          detection_path: detected_package_path,
          install_path: nupkg&.parent
        )
      end
    end

    def license_urls(dependency, nupkg)
      return if nupkg.nil? || !nupkg.exist?

      Zip::File.open(nupkg.to_s) do |zipfile|
        content = zipfile.read("#{dependency.name}.nuspec")
        ::License::Management::Nuspec.new(content).licenses
      end
    rescue StandardError => e
      ::License::Management.logger.error(e)
      []
    end

    def vendor_path
      @vendor_path ||= Pathname.pwd.join('.gitlab', 'cache', 'vendor')
    end
  end
end