Class: FromScratch

Inherits:
Object
  • Object
show all
Defined in:
lib/from-scratch.rb,
lib/from-scratch/version.rb

Constant Summary collapse

DEFAULTS = 
{ ruby_installer: 'rvm', ruby_version: '2.2.4' }
VERSION = 
"0.7.0"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FromScratch

Returns a new instance of FromScratch.



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# File 'lib/from-scratch.rb', line 12

def initialize
  @options = OpenStruct.new DEFAULTS
end

Instance Attribute Details

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/from-scratch.rb', line 10

def options
  @options
end

Instance Method Details

#generate_values ⇒ Object 



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# File 'lib/from-scratch.rb', line 67

def generate_values
  @options.ssh_pub_key               = `cat ~/.ssh/id_rsa.pub`.strip
  @options.postgresql_admin_password = `echo -n '#{SecureRandom.base64(16)}''postgres' | openssl md5 | sed -e 's/.* /md5/'`.strip
  @options.postgresql_user_password  = SecureRandom.base64(16)
end

#get_host_and_app_name ⇒ Object 



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# File 'lib/from-scratch.rb', line 38

def get_host_and_app_name
  @options.app_name, @options.host = ARGV.select { |x| !(x =~ /^\-/) }

  unless @options.app_name && @options.host
    raise ArgumentError, 'You should specify APP_NAME and HOST. Use --help for information.'
  end
end

#parse_options ⇒ Object 



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# File 'lib/from-scratch.rb', line 46

def parse_options
  opt_parser = OptionParser.new do |args|
    args.banner = "Usage: scratchify your_app_name your.host.com [options]"

    args.on '--rbenv', 'Use RBENV instead of RVM' do
      @options.ruby_installer = 'rbenv'
    end

    args.on '--ruby [VERSION]', "Choose specific ruby version instead of latest MRI" do |ruby_version|
      @options.ruby_version = ruby_version
    end

    args.on '-h', '--help', 'Prints this help' do
      puts args
      exit
    end
  end

  opt_parser.parse!
end

#run! ⇒ Object 



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# File 'lib/from-scratch.rb', line 16

def run!
  parse_options
  get_host_and_app_name
  generate_values

  { node: ['nodes', @options.host],
    user: ['data_bags/users', 'deploy']
  }.each do |from, to|
    FileUtils.mkdir_p File.expand_path("../../tmp/#{to[0]}", __FILE__)
    File.open(File.expand_path("../../tmp/#{to.join('/')}.json", __FILE__), 'w') do |f|
      f.write ERB.new(File.open(File.expand_path("../../templates/#{from}.json.erb", __FILE__)).read).result(binding)
    end
  end

  Dir.chdir(File.expand_path('../..', __FILE__)) do
    system "knife solo bootstrap root@#{@options.host} -c ./.chef/knife.rb"
    system "knife solo clean root@#{@options.host} -c ./.chef/knife.rb"
  end

  FileUtils.rm_rf [File.expand_path('../../tmp', __FILE__)]
end