Module: Whiteprint::Migrator

Defined in:
lib/whiteprint/migrator.rb

Defined Under Namespace

Classes: Cli

Class Method Summary collapse

Class Method Details

.eager_load! ⇒ Object 



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# File 'lib/whiteprint/migrator.rb', line 24

def eager_load!
  return unless Whiteprint.config.eager_load

  Rails.application.eager_load! if defined?(Rails)

  [*Whiteprint.config.eager_load_paths.uniq].each do |path|
    Gem.find_files(path).each do |file|
      load file
    end
  end
end

.explanations ⇒ Object 



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# File 'lib/whiteprint/migrator.rb', line 36

def explanations
  Whiteprint.changed_whiteprints.map.with_index do |whiteprint, index|
    whiteprint.explanation(index + 1)
  end
end

.interactive(input: $stdin, output: $stdout) ⇒ Object 



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# File 'lib/whiteprint/migrator.rb', line 46

def interactive(input: $stdin, output: $stdout)
  eager_load!
  cli = Cli.new(input, output)

  # return if there are no changes
  cli.say('Whiteprint detected no changes') and return if no_changes?

  # list all changes
  cli.say "Whiteprint has detected <%= color('#{number_of_changes}', :bold, :white) %> changes to your models.", *explanations

  if Whiteprint.config.migration_strategy == :ask
    cli.choose do |menu|
      menu.header = 'Migrations'
      menu.prompt = 'How would you like to process these changes?'
      menu.choice('In one migration')       { Whiteprint.migrate cli, separately: false }
      menu.choice('In separate migrations') { Whiteprint.migrate cli, separately: true }
    end
  else
    Whiteprint.migrate cli, separately: (Whiteprint.config.migration_strategy == :separately)
  end
end

.no_changes? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/whiteprint/migrator.rb', line 42

def no_changes?
  number_of_changes == 0
end

.number_of_changes ⇒ Object 



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# File 'lib/whiteprint/migrator.rb', line 68

def number_of_changes
  Whiteprint.changed_whiteprints.size
end