class Templater::Actions::Template

Public Class Methods

new(generator, name, source, destination, options={}) click to toggle source

Builds a new template.

Parameters

generator<Object>

Context for rendering

name<Symbol>

The name of this template

source<String>

Full path to the source of this template

destination<String>

Full path to the destination of this template

options<Hash{Symbol=>Symbol}

Options, including callbacks.

# File lib/templater/actions/template.rb, line 13
def initialize(generator, name, source, destination, options={})
  self.generator = generator
  self.name = name
  self.source = source
  self.destination = destination
  self.options = options
end

Public Instance Methods

exists?() click to toggle source

Checks if the destination file already exists.

Returns

Boolean

true if the file exists, false otherwise.

# File lib/templater/actions/template.rb, line 34
def exists?
  ::File.exists?(destination)
end
identical?() click to toggle source

Checks if the content of the file at the destination is identical to the rendered result.

Returns

Boolean

true if it is identical, false otherwise.

# File lib/templater/actions/template.rb, line 42
def identical?
  ::File.read(destination) == render if ::File.exists?(destination)
end
invoke!() click to toggle source

Renders the template and copies it to the destination.

# File lib/templater/actions/template.rb, line 47
def invoke!
  callback(:before)
  ::FileUtils.mkdir_p(::File.dirname(destination))
  ::File.open(destination, 'w') {|f| f.write render }
  callback(:after)
end
render() click to toggle source

Renders the template using ERB and returns the result as a String.

Returns

String

The rendered template.

# File lib/templater/actions/template.rb, line 25
def render
  context = generator.instance_eval 'binding'
  ERB.new(::File.read(source), nil, '-').result(context)
end
revoke!() click to toggle source

removes the destination file

# File lib/templater/actions/template.rb, line 55
def revoke!
  ::FileUtils.rm(destination, :force => true)
end