self.get_upgrade_command

in cookbooks/fb_system_upgrade/libraries/system_upgrade_helpers.rb [20:61]

• 35 lines of code
• 7 McCabe index (conditional complexity)

    def self.get_upgrade_command(node)
      package_manager = node.default_package_manager
      unless ['yum', 'dnf'].include?(package_manager)
        fail "fb_system_upgrade: default package manager #{package_manager} " +
             'is not supported'
      end

      bin = which(package_manager)
      wrapper = node['fb_system_upgrade']['wrapper']
      if wrapper
        bin = "#{wrapper} #{bin}"
      end
      config = node['fb_system_upgrade']['config']
      if config
        bin = "#{bin} -c #{config}"
      end

      repos_cmd = ''
      repos = node['fb_system_upgrade']['repos']
      unless repos.empty?
        repos_cmd = "--disablerepo=* --enablerepo=#{repos.join(',')}"
      end

      exclude_cmd = ''
      exclude_pkgs = node['fb_system_upgrade']['exclude_packages']

      unless exclude_pkgs.empty?
        exclude_cmd << "-x #{exclude_pkgs.join(' -x ')}"
      end

      if node['fb_system_upgrade']['allow_downgrades']
        dnf_cmd = 'distro-sync --allowerasing'
      else
        dnf_cmd = 'upgrade'
      end
      upgrade_cmd = "#{bin} #{repos_cmd} #{dnf_cmd} -y #{exclude_cmd}"
      log = node['fb_system_upgrade']['log']
      cmd = "date &>> #{log}; #{upgrade_cmd} &>> #{log}"

      cmd
    end