Module: DbAgile::Core::Repository::YAMLClassMethods

Included in:
DbAgile::Core::Repository
Defined in:
lib/dbagile/core/repository/yaml_methods.rb

Overview

module YAMLInstanceMethods

Instance Method Summary collapse

Instance Method Details

#from_yaml(str, root_path) ⇒ Object

Loads a repository from a YAML file and returns a Core::Repository instance.

This method is not robust at all and re-raises any error that occurs. It should be protected upstream.

Parameters:

  • str (String) —

    a YAML source

  • root_path (String) —

    root path to set on the repository



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# File 'lib/dbagile/core/repository/yaml_methods.rb', line 47

def from_yaml(str, root_path)
  # Load the hash
  hash = YAML::load(str)

  # Load the repository version
  version = hash['version'].to_s.strip
  if version.nil? or version.empty?
    raise "missing version number"
  end

  # create the repository instance
  repo = Repository.new(root_path, version)

  # load databases
  hash['databases'].each_pair{|dbname, dbconfig|
    db = Core::Database.new(dbname.to_s.to_sym)
    dbconfig.each_pair{|key, value|
      db.send(:"#{key}=", value)
    }
    repo << db
  }

  # Set current database
  current = hash['current'].to_s.strip
  unless current.empty?
    repo.current_db_name = current.to_sym
  end

  repo
end

#from_yaml_file(file, root_path) ⇒ Object

Loads a repository from a YAML file and returns a Core::Repository instance.

This method is not robust at all and re-raises any error that occurs. It should be protected upstream.

Parameters:

  • file (String) —

    path to a repository index (exist, readable)

  • root_path (String) —

    path of the repository itself (exist, readable)

Raises:

  • DbAgile::CorruptedRepositoryError if anything goes wrong.



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# File 'lib/dbagile/core/repository/yaml_methods.rb', line 34

def from_yaml_file(file, root_path)
  from_yaml(File.read(file), root_path)
end