Class: Chef::ChefFS::FileSystem::FileSystemEntry

Inherits:
BaseFSDir show all
Defined in:
lib/chef/chef_fs/file_system/file_system_entry.rb

Instance Attribute Summary collapse

Attributes inherited from BaseFSObject

#name, #parent, #path

Instance Method Summary collapse

Methods inherited from BaseFSDir

#can_have_child?, #empty?

Methods inherited from BaseFSObject

#can_have_child?, #chef_object, #child, #compare_to, #root

Constructor Details

#initialize(name, parent, file_path = nil) ⇒ FileSystemEntry

Returns a new instance of FileSystemEntry.



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# File 'lib/chef/chef_fs/file_system/file_system_entry.rb', line 31

def initialize(name, parent, file_path = nil)
  super(name, parent)
  @file_path = file_path || "#{parent.file_path}/#{name}"
end

Instance Attribute Details

#file_path ⇒ Object (readonly)

Returns the value of attribute file_path.



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# File 'lib/chef/chef_fs/file_system/file_system_entry.rb', line 36

def file_path
  @file_path
end

Instance Method Details

#children ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/file_system_entry.rb', line 42

def children
  # Except cookbooks and data bag dirs, all things must be json files
  begin
    Dir.entries(file_path).sort.
        map { |child_name| make_child_entry(child_name) }.
        select { |child| child && can_have_child?(child.name, child.dir?) }
  rescue Errno::ENOENT
    raise Chef::ChefFS::FileSystem::NotFoundError.new(self, $!)
  end
end

#create_child(child_name, file_contents = nil) ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/file_system_entry.rb', line 53

def create_child(child_name, file_contents=nil)
  child = make_child_entry(child_name)
  if child.exists?
    raise Chef::ChefFS::FileSystem::AlreadyExistsError.new(:create_child, child)
  end
  if file_contents
    child.write(file_contents)
  else
    begin
      Dir.mkdir(child.file_path)
    rescue Errno::EEXIST
      raise Chef::ChefFS::FileSystem::AlreadyExistsError.new(:create_child, child)
    end
  end
  child
end

#delete(recurse) ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/file_system_entry.rb', line 74

def delete(recurse)
  if dir?
    if !recurse
      raise MustDeleteRecursivelyError.new(self, $!)
    end
    FileUtils.rm_rf(file_path)
  else
    File.delete(file_path)
  end
end

#dir? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/chef_fs/file_system/file_system_entry.rb', line 70

def dir?
  File.directory?(file_path)
end

#exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chef/chef_fs/file_system/file_system_entry.rb', line 85

def exists?
  File.exists?(file_path) && parent.can_have_child?(name, dir?)
end

#path_for_printing ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/file_system_entry.rb', line 38

def path_for_printing
  file_path
end

#read ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/file_system_entry.rb', line 89

def read
  begin
    File.open(file_path, "rb") {|f| f.read}
  rescue Errno::ENOENT
    raise Chef::ChefFS::FileSystem::NotFoundError.new(self, $!)
  end
end

#write(content) ⇒ Object 



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# File 'lib/chef/chef_fs/file_system/file_system_entry.rb', line 97

def write(content)
  File.open(file_path, 'wb') do |file|
    file.write(content)
  end
end