Class: Puffy::Cli

Inherits:
Object
  • Object
show all
Defined in:
lib/puffy/cli.rb

Overview

Command-line processing

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Cli

Returns a new instance of Cli.



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# File 'lib/puffy/cli.rb', line 10

def initialize
  cli = self

  @main = Cri::Command.define do
    name    'puffy'
    usage   'puffy [options] <command>'
    summary 'Network firewall rules made easy!'

    description "      Generate firewall rules for multiple nodes from a single network\n      specification file.\n    DESCRIPTION\n\n    flag :h, :help, 'Show help for this command' do |_value, cmd|\n      puts cmd.help\n      exit 0\n    end\n\n    run do |_opts, _args, cmd|\n      puts cmd.help\n      exit 0\n    end\n  end\n\n  @main.define_command do\n    name    'generate'\n    usage   'generate [options] <network> <hostname>'\n    summary 'Generate the firewall configuration for a node'\n\n    description <<~DESCRIPTION\n      Generate the firewall configuration for the node \"hostname\" for which\n      the configuration is described in the \"network\" specification file.\n    DESCRIPTION\n\n    required :f, :formatter, 'The formatter to use', default: 'Pf'\n\n    param('network')\n    param('hostname')\n\n    run do |opts, args|\n      parser = cli.load_network(args[:network])\n      rules = parser.ruleset_for(args[:hostname])\n      policy = parser.policy_for(args[:hostname])\n\n      formatter = Object.const_get(\"Puffy::Formatters::\#{opts[:formatter]}::Ruleset\").new\n      puts formatter.emit_ruleset(rules, policy)\n    end\n  end\n\n  puppet = @main.define_command do\n    name    'puppet'\n    usage   'puppet [options] <subcommand>'\n    summary 'Run puppet actions'\n\n    description <<~DESCRIPTION\n      Manage a directory of firewall configurations files suitable for Puppet.\n    DESCRIPTION\n\n    required :o, :output, 'Base directory for network firewall rules', default: '.'\n\n    run do |_opts, _args, cmd|\n      puts cmd.help\n      exit 0\n    end\n  end\n\n  puppet.define_command do\n    name    'diff'\n    usage   'diff [options] <network>'\n    summary 'Show differences between network specification and firewall rules'\n\n    description <<~DESCRIPTION\n      Show the changes that would be introduced by running `puffy puppet\n      generate` with the current \"network\" specification file.\n    DESCRIPTION\n\n    param('network')\n\n    run do |opts, args|\n      parser = cli.load_network(args[:network])\n      puppet = Puffy::Puppet.new(opts[:output], parser)\n      puppet.diff\n    end\n  end\n\n  puppet.define_command do\n    name    'generate'\n    usage   'generate [options] <network>'\n    summary 'Generate network firewall rules according to network specification'\n\n    description <<~DESCRIPTION\n      Generate a tree of configuration files suitable for all supported\n      firewalls for all the nodes described in the \"network\" specification\n      file.\n    DESCRIPTION\n\n    param('network')\n\n    run do |opts, args|\n      parser = cli.load_network(args[:network])\n      puppet = Puffy::Puppet.new(opts[:output], parser)\n      puppet.save\n    end\n  end\n\n  help_command = Cri::Command.new_basic_help.modify do\n    summary 'Show help for a command'\n  end\n\n  @main.add_command(help_command)\nend\n"

Instance Method Details

#execute(argv) ⇒ Object 



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# File 'lib/puffy/cli.rb', line 128

def execute(argv)
  @main.run(argv)
end

#load_network(filename) ⇒ Object 



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# File 'lib/puffy/cli.rb', line 122

def load_network(filename)
  parser = Puffy::Parser.new
  parser.parse_file(filename)
  parser
end