Class: Relaxo::Changeset

Inherits:
Dataset show all
Defined in:
lib/relaxo/changeset.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Dataset

#directory?, #each, #exist?, #file?

Constructor Details

#initialize(repository, tree) ⇒ Changeset

Returns a new instance of Changeset.



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# File 'lib/relaxo/changeset.rb', line 25

def initialize(repository, tree)
	super
	
	@changes = {}
	@directories = {}
end

Instance Attribute Details

#changes ⇒ Object (readonly)

Returns the value of attribute changes.



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# File 'lib/relaxo/changeset.rb', line 33

def changes
  @changes
end

#ref ⇒ Object (readonly)

Returns the value of attribute ref.



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# File 'lib/relaxo/changeset.rb', line 32

def ref
  @ref
end

Instance Method Details

#abort! ⇒ Object 



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# File 'lib/relaxo/changeset.rb', line 90

def abort!
	throw :abort
end

#append(data, type = :blob) ⇒ Object 



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# File 'lib/relaxo/changeset.rb', line 49

def append(data, type = :blob)
	oid = @repository.write(data, type)
	
	return @repository.read(oid)
end

#changes? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/relaxo/changeset.rb', line 35

def changes?
	@changes.any?
end

#delete(path) ⇒ Object 



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# File 'lib/relaxo/changeset.rb', line 75

def delete(path)
	root, _, name = path.rpartition('/')
	
	entry = @changes[path] = {
		action: :remove,
		path: path,
		root: root,
		name: name,
	}
	
	fetch_directory(root).delete(entry)
	
	return entry
end

#read(path) ⇒ Object 



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# File 'lib/relaxo/changeset.rb', line 39

def read(path)
	if update = @changes[path]
		if update[:action] != :remove
			@repository.read(update[:oid])
		end
	else
		super
	end
end

#write(path, object, mode = 0100644) ⇒ Object Also known as: []= 



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# File 'lib/relaxo/changeset.rb', line 55

def write(path, object, mode = 0100644)
	root, _, name = path.rpartition('/')
	
	entry = @changes[path] = {
		action: :upsert,
		oid: object.oid,
		object: object,
		filemode: mode,
		path: path,
		root: root,
		name: name,
	}
	
	fetch_directory(root).insert(entry)
	
	return entry
end

#write_tree ⇒ Object 



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# File 'lib/relaxo/changeset.rb', line 94

def write_tree
	@tree.update(@changes.values)
end