Class: Backline::Transaction

Inherits:
Object
  • Object
show all
Defined in:
lib/backline/transaction.rb

Instance Method Summary collapse

Constructor Details

#initialize(repository) ⇒ Transaction

Returns a new instance of Transaction.



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# File 'lib/backline/transaction.rb', line 3

def initialize(repository)
  @repository = repository
  @git = repository.git
  @index = git.index

  index.read_tree(tree) unless git.empty?
end

Instance Method Details

#changes? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/backline/transaction.rb', line 40

def changes?
  git.empty? || @index.diff(tree).size > 0
end

#commit(message, options = {}) ⇒ Object 



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# File 'lib/backline/transaction.rb', line 25

def commit(message, options = {})
  options = options.merge({
    tree: index.write_tree(git),
    message: message,
    parents: git.empty? ? [] : [git.head.target].compact,
    update_ref: 'HEAD'
  })

  Rugged::Commit.create(git, options) if changes?
end

#delete(model) ⇒ Object 



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# File 'lib/backline/transaction.rb', line 21

def delete(model)
  index.remove(repository.path_for(model))
end

#rollback ⇒ Object 



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# File 'lib/backline/transaction.rb', line 36

def rollback
  @index.reload
end

#save(model) ⇒ Object 



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# File 'lib/backline/transaction.rb', line 11

def save(model)
  oid = git.write(model.class.dump(model), :blob)

  index.add({
    path: repository.path_for(model),
    oid: oid,
    mode: 0100644
  })
end