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# An in-memory file abstraction. Commonly used with Puppet::FileSystem::File#overlay
# @api private
class Puppet::FileSystem::MemoryFile
attr_reader :path, :children
def self.a_missing_file(path)
new(path, :exist? => false, :executable? => false)
end
def self.a_missing_directory(path)
new(path,
:exist? => false,
:executable? => false,
:directory? => true)
end
def self.a_regular_file_containing(path, content)
new(path, :exist? => true, :executable? => false, :content => content)
end
def self.an_executable(path)
new(path, :exist? => true, :executable? => true)
end
def self.a_directory(path, children = [])
new(path,
:exist? => true,
:executable? => true,
:directory? => true,
:children => children)
end
def self.a_symlink(target_path, source_path)
new(target_path, :exist? => true, :symlink? => true, :source_path => source_path)
end
def initialize(path, properties)
@path = path
@properties = properties
@children = (properties[:children] || []).collect do |child|
child.duplicate_as(File.join(@path, child.path))
end
end
def directory?; @properties[:directory?]; end
def exist?; @properties[:exist?]; end
def executable?; @properties[:executable?]; end
def symlink?; @properties[:symlink?]; end
def source_path; @properties[:source_path]; end
def each_line(&block)
handle.each_line(&block)
end
def handle
raise Errno::ENOENT unless exist?
StringIO.new(@properties[:content] || '')
end
def duplicate_as(other_path)
self.class.new(other_path, @properties)
end
def absolute?
Pathname.new(path).absolute?
end
def to_path
path
end
def to_s
to_path
end
def inspect
"<Puppet::FileSystem::MemoryFile:#{self}>"
end
end
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