Class: RubyConfig::OptionsParser

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby_config/options_parser.rb

Constant Summary collapse

COMMANDS = 
{ 
  'list' => 'List installed Ruby runtimes',
  'available' => 'List available Ruby runtimes',
  'switch' => 'Switch to specific Ruby runtime',
  'install' => 'Install specific Ruby runtime',
  'uninstall' => 'Uninstall specific Ruby runtime',
  'setup' => 'Setup your bash environment'
}
OPTIONS = 
{
  '-v, --version' => "Display version",
  '-h, --help' => "Display this screen"
}
EXAMPLES = 
[
  'ruby-config list ',
  'ruby-config install jruby-1.3.1',
  'ruby-config switch jruby-1.3.1',
  'ruby-config -v'
]

Instance Method Summary collapse

Constructor Details

#initialize ⇒ OptionsParser

Returns a new instance of OptionsParser.



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# File 'lib/ruby_config/options_parser.rb', line 25

def initialize
  create_options
end

Instance Method Details

#parse_commands!(arguments) ⇒ Object 



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# File 'lib/ruby_config/options_parser.rb', line 53

def parse_commands!(arguments)
  args = find_commands(arguments)
  
  @commands = OpenStruct.new
  @commands.list = false
  @commands.available = false
  @commands.switch = false
  @commands.install = false
  @commands.uninstall = false
  @commands.setup = false
 
  case args.first
  when 'list'
    @commands.list = true
  when 'available'
    @commands.available = true
  when 'setup'
    @commands.setup = true
  when 'install'
    @commands.install = true
    @commands.handle = args[1]
    abort("No Runtime specified") unless @commands.handle
  when 'uninstall'
    @commands.uninstall = true
    @commands.handle = args[1]
    abort("No Runtime specified") unless @commands.handle
  when 'switch'
    @commands.switch = true
    @commands.handle = args[1]
    abort("No Runtime specified") unless @commands.handle
  end
  
  @commands
end

#parse_options!(arguments) ⇒ Object 



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# File 'lib/ruby_config/options_parser.rb', line 88

def parse_options!(arguments)
  @optparse.parse!(arguments)
  @options
end

#print_help ⇒ Object 



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# File 'lib/ruby_config/options_parser.rb', line 29

def print_help
  puts "Usage: ruby-config [command] [options]"
  puts
  puts " Available Commands:"
  
  COMMANDS.each do |key, value|
    puts "  #{key} #{indent} #{value}"
  end
  
  puts
  puts " Available Options:"
  OPTIONS.each do |key, value|
    puts "  #{key} #{indent} #{value}"
  end
  
  puts 
  puts " Examples:"
  EXAMPLES.each do |value|
    puts "  #{value}"
  end
  
  puts
end