require 'erb' require 'open-uri' class Thor module Actions # Copies the file from the relative source to the relative destination. If # the destination is not given it's assumed to be equal to the source. # # ==== Parameters # source:: the relative path to the source root. # destination:: the relative path to the destination root. # config:: give :verbose => false to not log the status, and # :mode => :preserve, to preserve the file mode from the source. # # ==== Examples # # copy_file "README", "doc/README" # # copy_file "doc/README" # def copy_file(source, *args, &block) config = args.last.is_a?(Hash) ? args.pop : {} destination = args.first || source source = File.expand_path(find_in_source_paths(source.to_s)) create_file destination, nil, config do content = File.binread(source) content = block.call(content) if block content end if config[:mode] == :preserve mode = File.stat(source).mode chmod(destination, mode, config) end end # Links the file from the relative source to the relative destination. If # the destination is not given it's assumed to be equal to the source. # # ==== Parameters # source:: the relative path to the source root. # destination:: the relative path to the destination root. # config:: give :verbose => false to not log the status. # # ==== Examples # # link_file "README", "doc/README" # # link_file "doc/README" # def link_file(source, *args, &block) config = args.last.is_a?(Hash) ? args.pop : {} destination = args.first || source source = File.expand_path(find_in_source_paths(source.to_s)) create_link destination, source, config end # Gets the content at the given address and places it at the given relative # destination. If a block is given instead of destination, the content of # the url is yielded and used as location. # # ==== Parameters # source:: the address of the given content. # destination:: the relative path to the destination root. # config:: give :verbose => false to not log the status. # # ==== Examples # # get "http://gist.github.com/103208", "doc/README" # # get "http://gist.github.com/103208" do |content| # content.split("\n").first # end # def get(source, *args, &block) config = args.last.is_a?(Hash) ? args.pop : {} destination = args.first source = File.expand_path(find_in_source_paths(source.to_s)) unless source =~ /^https?\:\/\// render = open(source) {|input| input.binmode.read } destination ||= if block_given? block.arity == 1 ? block.call(render) : block.call else File.basename(source) end create_file destination, render, config end # Gets an ERB template at the relative source, executes it and makes a copy # at the relative destination. If the destination is not given it's assumed # to be equal to the source removing .tt from the filename. # # ==== Parameters # source:: the relative path to the source root. # destination:: the relative path to the destination root. # config:: give :verbose => false to not log the status. # # ==== Examples # # template "README", "doc/README" # # template "doc/README" # def template(source, *args, &block) config = args.last.is_a?(Hash) ? args.pop : {} destination = args.first || source.sub(/\.tt$/, '') source = File.expand_path(find_in_source_paths(source.to_s)) context = instance_eval('binding') create_file destination, nil, config do content = ERB.new(::File.binread(source), nil, '-', '@output_buffer').result(context) content = block.call(content) if block content end end # Changes the mode of the given file or directory. # # ==== Parameters # mode:: the file mode # path:: the name of the file to change mode # config:: give :verbose => false to not log the status. # # ==== Example # # chmod "script/server", 0755 # def chmod(path, mode, config={}) return unless behavior == :invoke path = File.expand_path(path, destination_root) say_status :chmod, relative_to_original_destination_root(path), config.fetch(:verbose, true) FileUtils.chmod_R(mode, path) unless options[:pretend] end # Prepend text to a file. Since it depends on insert_into_file, it's reversible. # # ==== Parameters # path:: path of the file to be changed # data:: the data to prepend to the file, can be also given as a block. # config:: give :verbose => false to not log the status. # # ==== Example # # prepend_to_file 'config/environments/test.rb', 'config.gem "rspec"' # # prepend_to_file 'config/environments/test.rb' do # 'config.gem "rspec"' # end # def prepend_to_file(path, *args, &block) config = args.last.is_a?(Hash) ? args.pop : {} config.merge!(:after => /\A/) insert_into_file(path, *(args << config), &block) end alias_method :prepend_file, :prepend_to_file # Append text to a file. Since it depends on insert_into_file, it's reversible. # # ==== Parameters # path:: path of the file to be changed # data:: the data to append to the file, can be also given as a block. # config:: give :verbose => false to not log the status. # # ==== Example # # append_to_file 'config/environments/test.rb', 'config.gem "rspec"' # # append_to_file 'config/environments/test.rb' do # 'config.gem "rspec"' # end # def append_to_file(path, *args, &block) config = args.last.is_a?(Hash) ? args.pop : {} config.merge!(:before => /\z/) insert_into_file(path, *(args << config), &block) end alias_method :append_file, :append_to_file # Injects text right after the class definition. Since it depends on # insert_into_file, it's reversible. # # ==== Parameters # path:: path of the file to be changed # klass:: the class to be manipulated # data:: the data to append to the class, can be also given as a block. # config:: give :verbose => false to not log the status. # # ==== Examples # # inject_into_class "app/controllers/application_controller.rb", ApplicationController, " filter_parameter :password\n" # # inject_into_class "app/controllers/application_controller.rb", ApplicationController do # " filter_parameter :password\n" # end # def inject_into_class(path, klass, *args, &block) config = args.last.is_a?(Hash) ? args.pop : {} config.merge!(:after => /class #{klass}\n|class #{klass} .*\n/) insert_into_file(path, *(args << config), &block) end # Run a regular expression replacement on a file. # # ==== Parameters # path:: path of the file to be changed # flag:: the regexp or string to be replaced # replacement:: the replacement, can be also given as a block # config:: give :verbose => false to not log the status. # # ==== Example # # gsub_file 'app/controllers/application_controller.rb', /#\s*(filter_parameter_logging :password)/, '\1' # # gsub_file 'README', /rake/, :green do |match| # match << " no more. Use thor!" # end # def gsub_file(path, flag, *args, &block) return unless behavior == :invoke config = args.last.is_a?(Hash) ? args.pop : {} path = File.expand_path(path, destination_root) say_status :gsub, relative_to_original_destination_root(path), config.fetch(:verbose, true) unless options[:pretend] content = File.binread(path) content.gsub!(flag, *args, &block) File.open(path, 'wb') { |file| file.write(content) } end end # Uncomment all lines matching a given regex. It will leave the space # which existed before the comment hash in tact but will remove any spacing # between the comment hash and the beginning of the line. # # ==== Parameters # path:: path of the file to be changed # flag:: the regexp or string used to decide which lines to uncomment # config:: give :verbose => false to not log the status. # # ==== Example # # uncomment_lines 'config/initializers/session_store.rb', /active_record/ # def uncomment_lines(path, flag, *args) flag = flag.respond_to?(:source) ? flag.source : flag gsub_file(path, /^(\s*)#[[:blank:]]*(.*#{flag})/, '\1\2', *args) end # Comment all lines matching a given regex. It will leave the space # which existed before the beginning of the line in tact and will insert # a single space after the comment hash. # # ==== Parameters # path:: path of the file to be changed # flag:: the regexp or string used to decide which lines to comment # config:: give :verbose => false to not log the status. # # ==== Example # # comment_lines 'config/initializers/session_store.rb', /cookie_store/ # def comment_lines(path, flag, *args) flag = flag.respond_to?(:source) ? flag.source : flag gsub_file(path, /^(\s*)([^#|\n]*#{flag})/, '\1# \2', *args) end # Removes a file at the given location. # # ==== Parameters # path:: path of the file to be changed # config:: give :verbose => false to not log the status. # # ==== Example # # remove_file 'README' # remove_file 'app/controllers/application_controller.rb' # def remove_file(path, config={}) return unless behavior == :invoke path = File.expand_path(path, destination_root) say_status :remove, relative_to_original_destination_root(path), config.fetch(:verbose, true) ::FileUtils.rm_rf(path) if !options[:pretend] && File.exists?(path) end alias :remove_dir :remove_file attr_accessor :output_buffer private :output_buffer, :output_buffer= private def concat(string) @output_buffer.concat(string) end def capture(*args, &block) with_output_buffer { block.call(*args) } end def with_output_buffer(buf = '') #:nodoc: self.output_buffer, old_buffer = buf, output_buffer yield output_buffer ensure self.output_buffer = old_buffer end end end