lib/backup/template.rb
require "erb"
module Backup
class Template
# Holds a binding object. Nil if not provided.
attr_accessor :binding
##
# Creates a new instance of the Backup::Template class
# and optionally takes an argument that can be either a binding object, a Hash or nil
def initialize(object = nil)
@binding =
if object.is_a?(Binding)
object
elsif object.is_a?(Hash)
Backup::Binder.new(object).get_binding
end
end
##
# Renders the provided file (in the context of the binding if any) to the console
def render(file)
puts result(file)
end
##
# Returns a String object containing the contents of the file (in the context of the binding if any)
def result(file)
if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new("3.0.0")
ERB.new(file_contents(file), trim_mode: "<>")
else
ERB.new(file_contents(file), nil, "<>")
end.result(binding)
end
private
##
# Reads and returns the contents of the provided file path,
# relative from the Backup::TEMPLATE_PATH
def file_contents(file)
File.read(File.join(Backup::TEMPLATE_PATH, file))
end
end
end