Class: DPM::Options

Inherits:
Object
  • Object
show all
Defined in:
lib/dpm/options.rb

Constant Summary collapse

PACKAGE_COMMANDS = 
%w[tags status start stop restart configure].freeze
PACKAGE_REGEX = 
/\A[\w.\-:]+\z/.freeze
UNPACKAGE_COMMANDS = 
%w[list packages cleanup].freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv) ⇒ Options

Returns a new instance of Options.



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# File 'lib/dpm/options.rb', line 11

def initialize(argv)
  self.argv = argv
  self.dry_run = false
end

Instance Attribute Details

#argv ⇒ Object

Returns the value of attribute argv.



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# File 'lib/dpm/options.rb', line 9

def argv
  @argv
end

#command ⇒ Object

Returns the value of attribute command.



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# File 'lib/dpm/options.rb', line 9

def command
  @command
end

#dry_run ⇒ Object

Returns the value of attribute dry_run.



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# File 'lib/dpm/options.rb', line 9

def dry_run
  @dry_run
end

#package ⇒ Object

Returns the value of attribute package.



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# File 'lib/dpm/options.rb', line 9

def package
  @package
end

#parser ⇒ Object

Returns the value of attribute parser.



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# File 'lib/dpm/options.rb', line 9

def parser
  @parser
end

#raw ⇒ Object

Returns the value of attribute raw.



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# File 'lib/dpm/options.rb', line 9

def raw
  @raw
end

Class Method Details

.parse!(argv) ⇒ Object 



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# File 'lib/dpm/options.rb', line 16

def self.parse!(argv)
  new(argv).parse!
end

Instance Method Details

#help_text ⇒ Object 



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# File 'lib/dpm/options.rb', line 53

def help_text
  "    \#{parser}\n    COMMAND:\n        help                             Show the help\n        version                          Show the version\n        packages                         List supported packages\n        list                             List running packages\n        cleanup                          Cleanup useless data\n        tags PACKAGE                     List supported tags of a package\n        status PACKAGE                   Get the status of a package\n        start PACKAGE                    Start a package\n        stop PACKAGE                     Stop a package\n        restart PACKAGE                  Restart a package\n        configure PACKAGE                Configure a package in the user-level, including configure a new package\n\n    See more at https://github.com/songhuangcn/dpm\n  EOF\nend\n"

#parse! ⇒ Object 



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# File 'lib/dpm/options.rb', line 20

def parse!
  OptionParser.new do |parser|
    self.parser = parser

    parser.banner = "Usage: dpm [options] [COMMAND] [PACKAGE]"
    parser.separator ""
    parser.separator "Options:"

    parser.on("-d", "--dry-run", "Don't actually run Docker command, just print") do |v|
      self.dry_run = v
    end

    parser.on("-r", "--raw", "Try to run a package even if it doesn't exist") do |v|
      self.raw = v
    end

    parser.on_tail("-h", "--help", "Show the help") do
      puts help_text
      exit
    end

    parser.on_tail("-v", "--version", "Show the version") do
      puts VERSION
      exit
    end

    parser.parse!(argv)
  end

  process_args!
  self
end

#process_args! ⇒ Object 



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# File 'lib/dpm/options.rb', line 73

def process_args!
  self.command, self.package = argv

  case command
  when "help"
    puts help_text
    exit
  when "version"
    puts VERSION
    exit
  when *PACKAGE_COMMANDS
    raise Error, "Command `#{command}` need a package" if package.blank?
    raise Error, "Package invalid, valid regex: #{PACKAGE_REGEX}" if !PACKAGE_REGEX.match?(package)
  else
    raise Error, "Unknown command `#{command}`, see `dpm help`" unless UNPACKAGE_COMMANDS.include?(command)
  end
end