# module Bundler::Thor::Actions

### Attributes

behavior[RW]
output_buffer[RW]

### Public Class Methods

new(args = [], options = {}, config = {}) click to toggle source

Extends initializer to add more configuration options.

#### Configuration¶ ↑

behavior<Symbol>

  The actions default behavior. Can be :invoke or :revoke. It also accepts :force, :skip and :pretend to set the behavior and the respective option.

`destination_root`<String>

  The root directory needed for some actions.

Calls superclass method

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 73
    def initialize(args = [], options = {}, config = {})
      self.behavior = case config[:behavior].to_s
      when "force", "skip"
        _cleanup_options_and_set(options, config[:behavior])
        :invoke
      when "revoke"
        :revoke
      else
        :invoke
      end

      super
      self.destination_root = config[:destination_root]
    end

### Public Instance Methods

add_file(destination, *args, &block)
Alias for: create_file
add_link(destination, *args)
Alias for: create_link
append_file(path, *args, &block)
Alias for: append_to_file
append_to_file(path, *args, &block) click to toggle source

Append text to a file. Since it depends on `insert_into_file`, it's reversible.

#### Parameters¶ ↑

path<String>

  path of the file to be changed

data<String>

  the data to append to the file, can be also given as a block.

config<Hash>

  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

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 186
    def append_to_file(path, *args, &block)
      config = args.last.is_a?(Hash) ? args.pop : {}
      config[:before] = /\z/
      insert_into_file(path, *(args << config), &block)
    end

Also aliased as: append_file
apply(path, config = {}) click to toggle source

Loads an external file and execute it in the instance binding.

#### Parameters¶ ↑

path<String>

  The path to the file to execute. Can be a web address or a relative path from the source root.

#### Examples¶ ↑

    apply "http://gist.github.com/103208"

    apply "recipes/jquery.rb"

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 211
    def apply(path, config = {})
      verbose = config.fetch(:verbose, true)
      is_uri  = path =~ %r{^https?\://}
      path    = find_in_source_paths(path) unless is_uri

      say_status :apply, path, verbose
      shell.padding += 1 if verbose

      contents = if is_uri
        open(path, "Accept" => "application/x-thor-template", &:read)
      else
        open(path, &:read)
      end

      instance_eval(contents, path)
      shell.padding -= 1 if verbose
    end

chmod(path, mode, config = {}) click to toggle source

Changes the mode of the given file or directory.

#### Parameters¶ ↑

mode<Integer>

  the file mode

path<String>

  the name of the file to change mode

config<Hash>

  give :verbose => false to not log the status.

#### Example¶ ↑

    chmod "script/server", 0755

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 139
    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)
      unless options[:pretend]
        require "fileutils"
        FileUtils.chmod_R(mode, path)
      end
    end

comment_lines(path, flag, *args) click to toggle source

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<String>

  path of the file to be changed

flag<Regexp|String>

  the regexp or string used to decide which lines to comment

config<Hash>

  give :verbose => false to not log the status.

#### Example¶ ↑

    comment_lines 'config/initializers/session_store.rb', /cookie_store/

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 301
    def comment_lines(path, flag, *args)
      flag = flag.respond_to?(:source) ? flag.source : flag

      gsub_file(path, /^(\s*)([^#|\n]*#{flag})/, '\1# \2', *args)
    end

copy_file(source, *args) { |content| ... } click to toggle source

#### Examples¶ ↑

    copy_file "README", "doc/README"

    copy_file "doc/README"

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 21
    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 = yield(content) if block
        content
      end
      if config[:mode] == :preserve
        mode = File.stat(source).mode
        chmod(destination, mode, config)
      end
    end

create_file(destination, *args, &block) click to toggle source

Create a new file relative to the destination root with the given data, which is the return value of a block or a data string.

#### Parameters¶ ↑

destination<String>

  the relative path to the destination root.

data<String|NilClass>

  the data to append to the file.

config<Hash>

  give :verbose => false to not log the status.

#### Examples¶ ↑

    create_file "lib/fun_party.rb" do
      hostname = ask("What is the virtual hostname I should use?")
      "vhost.name = #{hostname}"
    end

    create_file "config/apache.conf", "your apache config"

    # File lib/bundler/vendor/thor/lib/thor/actions/create_file.rb, line 22
    def create_file(destination, *args, &block)
      config = args.last.is_a?(Hash) ? args.pop : {}
      data = args.first
      action CreateFile.new(self, destination, block || data.to_s, config)
    end

Also aliased as: add_file
create_link(destination, *args) click to toggle source

Create a new file relative to the destination root from the given source.

#### Parameters¶ ↑

destination<String>

  the relative path to the destination root.

source<String|NilClass>

  the relative path to the source root.

config<Hash>

  give :verbose => false to not log the status.

  give :symbolic => false for hard link.

#### Examples¶ ↑

    create_link "config/apache.conf", "/etc/apache.conf"

    # File lib/bundler/vendor/thor/lib/thor/actions/create_link.rb, line 17
    def create_link(destination, *args)
      config = args.last.is_a?(Hash) ? args.pop : {}
      source = args.first
      action CreateLink.new(self, destination, source, config)
    end

Also aliased as: add_link
destination_root() click to toggle source

Returns the root for this thor class (also aliased as destination root).

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 100
    def destination_root
      @destination_stack.last
    end

destination_root=(root) click to toggle source

Sets the root for this thor class. Relatives path are added to the directory where the script was invoked and expanded.

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 107
    def destination_root=(root)
      @destination_stack ||= []
      @destination_stack[0] = File.expand_path(root || "")
    end

directory(source, *args, &block) click to toggle source

Copies recursively the files from source directory to root directory. If any of the files finishes with .tt, it's considered to be a template and is placed in the destination without the extension .tt. If any empty directory is found, it's copied and all .empty_directory files are ignored. If any file name is wrapped within % signs, the text within the % signs will be executed as a method and replaced with the returned value. Let's suppose a doc directory with the following files:

    doc/
      components/.empty_directory
      README
      rdoc.rb.tt
      %app_name%.rb

When invoked as:

    directory "doc"

It will create a doc directory in the destination with the following files (assuming that the `app_name` method returns the value “blog”):

    doc/
      components/
      README
      rdoc.rb
      blog.rb

Encoded path note: Since Bundler::Thor internals use `Object#respond_to?` to check if it can expand %something%, this `something` should be a public method in the class calling `directory`. If a method is private, Bundler::Thor stack raises PrivateMethodEncodedError.

#### Parameters¶ ↑

source<String>

  the relative path to the source root.

destination<String>

  the relative path to the destination root.

config<Hash>

  give :verbose => false to not log the status. If :recursive => false, does not look for paths recursively. If :mode => :preserve, preserve the file mode from the source. If :exclude_pattern => /regexp/, prevents copying files that match that regexp.

#### Examples¶ ↑

    directory "doc"
    directory "doc", "docs", :recursive => false

    # File lib/bundler/vendor/thor/lib/thor/actions/directory.rb, line 49
    def directory(source, *args, &block)
      config = args.last.is_a?(Hash) ? args.pop : {}
      destination = args.first || source
      action Directory.new(self, source, destination || source, config, &block)
    end

empty_directory(destination, config = {}) click to toggle source

Creates an empty directory.

#### Parameters¶ ↑

destination<String>

  the relative path to the destination root.

config<Hash>

  give :verbose => false to not log the status.

#### Examples¶ ↑

    empty_directory "doc"

    # File lib/bundler/vendor/thor/lib/thor/actions/empty_directory.rb, line 13
    def empty_directory(destination, config = {})
      action EmptyDirectory.new(self, destination, config)
    end

find_in_source_paths(file) click to toggle source

Receives a file or directory and search for it in the source paths.

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 132
    def find_in_source_paths(file)
      possible_files = [file, file + TEMPLATE_EXTNAME]
      relative_root = relative_to_original_destination_root(destination_root, false)

      source_paths.each do |source|
        possible_files.each do |f|
          source_file = File.expand_path(f, File.join(source, relative_root))
          return source_file if File.exist?(source_file)
        end
      end

      message = "Could not find #{file.inspect} in any of your source paths. ".dup

      unless self.class.source_root
        message << "Please invoke #{self.class.name}.source_root(PATH) with the PATH containing your templates. "
      end

      message << if source_paths.empty?
                   "Currently you have no source paths."
                 else
                   "Your current source paths are: \n#{source_paths.join("\n")}"
                 end

      raise Error, message
    end

get(source, *args) { |render| ... } click to toggle source

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<String>

  the address of the given content.

destination<String>

  the relative path to the destination root.

config<Hash>

  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

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 76
    def get(source, *args, &block)
      config = args.last.is_a?(Hash) ? args.pop : {}
      destination = args.first

      if source =~ %r{^https?\://}
        require "open-uri"
      else
        source = File.expand_path(find_in_source_paths(source.to_s))
      end

      render = open(source) { |input| input.binmode.read }

      destination ||= if block_given?
        block.arity == 1 ? yield(render) : yield
      else
        File.basename(source)
      end

      create_file destination, render, config
    end

gsub_file(path, flag, *args, &block) click to toggle source

Run a regular expression replacement on a file.

#### Parameters¶ ↑

path<String>

  path of the file to be changed

flag<Regexp|String>

  the regexp or string to be replaced

replacement<String>

  the replacement, can be also given as a block

config<Hash>

  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

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 255
    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

in_root() { || ... } click to toggle source

Goes to the root and execute the given block.

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 195
    def in_root
      inside(@destination_stack.first) { yield }
    end

inject_into_class(path, klass, *args, &block) click to toggle source

Injects text right after the class definition. Since it depends on `insert_into_file`, it's reversible.

#### Parameters¶ ↑

path<String>

  path of the file to be changed

klass<String|Class>

  the class to be manipulated

data<String>

  the data to append to the class, can be also given as a block.

config<Hash>

  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

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 210
    def inject_into_class(path, klass, *args, &block)
      config = args.last.is_a?(Hash) ? args.pop : {}
      config[:after] = /class #{klass}\n|class #{klass} .*\n/
      insert_into_file(path, *(args << config), &block)
    end

inject_into_file(destination, *args, &block)
Alias for: insert_into_file
inject_into_module(path, module_name, *args, &block) click to toggle source

Injects text right after the module definition. Since it depends on `insert_into_file`, it's reversible.

#### Parameters¶ ↑

path<String>

  path of the file to be changed

module_name<String|Class>

  the module to be manipulated

data<String>

  the data to append to the class, can be also given as a block.

config<Hash>

  give :verbose => false to not log the status.

#### Examples¶ ↑

    inject_into_module "app/helpers/application_helper.rb", ApplicationHelper, "  def help; 'help'; end\n"

    inject_into_module "app/helpers/application_helper.rb", ApplicationHelper do
      "  def help; 'help'; end\n"
    end

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 233
    def inject_into_module(path, module_name, *args, &block)
      config = args.last.is_a?(Hash) ? args.pop : {}
      config[:after] = /module #{module_name}\n|module #{module_name} .*\n/
      insert_into_file(path, *(args << config), &block)
    end

insert_into_file(destination, *args, &block) click to toggle source

Injects the given content into a file. Different from `gsub_file`, this method is reversible.

#### Parameters¶ ↑

destination<String>

  Relative path to the destination root

data<String>

  `Data` to add to the file. Can be given as a block.

config<Hash>

  give :verbose => false to not log the status and the flag for injection (:after or :before) or :force => true for insert two or more times the same content.

#### Examples¶ ↑

    insert_into_file "config/environment.rb", "config.gem :thor", :after => "Rails::Initializer.run do |config|\n"

    insert_into_file "config/environment.rb", :after => "Rails::Initializer.run do |config|\n" do
      gems = ask "Which gems would you like to add?"
      gems.split(" ").map{ |gem| "  config.gem :#{gem}" }.join("\n")
    end

    # File lib/bundler/vendor/thor/lib/thor/actions/inject_into_file.rb, line 24
    def insert_into_file(destination, *args, &block)
      data = block_given? ? block : args.shift
      config = args.shift
      action InjectIntoFile.new(self, destination, data, config)
    end

Also aliased as: inject_into_file
inside(dir = "", config = {}) { |destination_root| ... } click to toggle source

Do something in the root or on a provided subfolder. If a relative path is given it's referenced from the current root. The full path is yielded to the block you provide. The path is set back to the previous path when the method exits.

#### Parameters¶ ↑

dir<String>

  the directory to move to.

config<Hash>

  give :verbose => true to log and use padding.

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 167
    def inside(dir = "", config = {}, &block)
      verbose = config.fetch(:verbose, false)
      pretend = options[:pretend]

      say_status :inside, dir, verbose
      shell.padding += 1 if verbose
      @destination_stack.push File.expand_path(dir, destination_root)

      # If the directory doesnt exist and we're not pretending
      if !File.exist?(destination_root) && !pretend
        require "fileutils"
        FileUtils.mkdir_p(destination_root)
      end

      if pretend
        # In pretend mode, just yield down to the block
        block.arity == 1 ? yield(destination_root) : yield
      else
        require "fileutils"
        FileUtils.cd(destination_root) { block.arity == 1 ? yield(destination_root) : yield }
      end

      @destination_stack.pop
      shell.padding -= 1 if verbose
    end

link_file(source, *args) click to toggle source

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<String>

  the relative path to the source root.

destination<String>

  the relative path to the destination root.

config<Hash>

  give :verbose => false to not log the status.

#### Examples¶ ↑

    link_file "README", "doc/README"

    link_file "doc/README"

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 51
    def link_file(source, *args)
      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

prepend_file(path, *args, &block)
Alias for: prepend_to_file
prepend_to_file(path, *args, &block) click to toggle source

Prepend text to a file. Since it depends on `insert_into_file`, it's reversible.

#### Parameters¶ ↑

path<String>

  path of the file to be changed

data<String>

  the data to prepend to the file, can be also given as a block.

config<Hash>

  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

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 164
    def prepend_to_file(path, *args, &block)
      config = args.last.is_a?(Hash) ? args.pop : {}
      config[:after] = /\A/
      insert_into_file(path, *(args << config), &block)
    end

Also aliased as: prepend_file
relative_to_original_destination_root(path, remove_dot = true) click to toggle source

Returns the given path relative to the absolute root (ie, root where the script started).

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 115
    def relative_to_original_destination_root(path, remove_dot = true)
      path = path.dup
      if path.gsub!(@destination_stack[0], ".")
        remove_dot ? (path[2..-1] || "") : path
      else
        path
      end
    end

remove_dir(path, config = {})
Alias for: remove_file
remove_file(path, config = {}) click to toggle source

Removes a file at the given location.

#### Parameters¶ ↑

path<String>

  path of the file to be changed

config<Hash>

  give :verbose => false to not log the status.

#### Example¶ ↑

    remove_file 'README'
    remove_file 'app/controllers/application_controller.rb'

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 318
    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)
      if !options[:pretend] && File.exist?(path)
        require "fileutils"
        ::FileUtils.rm_rf(path)
      end
    end

Also aliased as: remove_dir
run(command, config = {}) click to toggle source

Executes a command returning the contents of the command.

#### Parameters¶ ↑

command<String>

  the command to be executed.

config<Hash>

  give :verbose => false to not log the status, :capture => true to hide to output. Specify :with to append an executable to command execution.

#### Example¶ ↑

    inside('vendor') do
      run('ln -s ~/edge rails')
    end

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 242
    def run(command, config = {})
      return unless behavior == :invoke

      destination = relative_to_original_destination_root(destination_root, false)
      desc = "#{command} from #{destination.inspect}"

      if config[:with]
        desc = "#{File.basename(config[:with].to_s)} #{desc}"
        command = "#{config[:with]} #{command}"
      end

      say_status :run, desc, config.fetch(:verbose, true)

      unless options[:pretend]
        config[:capture] ? `#{command}` : system(command.to_s)
      end
    end

run_ruby_script(command, config = {}) click to toggle source

Executes a ruby script (taking into account WIN32 platform quirks).

#### Parameters¶ ↑

command<String>

  the command to be executed.

config<Hash>

  give :verbose => false to not log the status.

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 266
    def run_ruby_script(command, config = {})
      return unless behavior == :invoke
      run command, config.merge(:with => Bundler::Thor::Util.ruby_command)
    end

source_paths() click to toggle source

Holds source paths in instance so they can be manipulated.

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 126
    def source_paths
      @source_paths ||= self.class.source_paths_for_search
    end

template(source, *args) { |content| ... } click to toggle source

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<String>

  the relative path to the source root.

destination<String>

  the relative path to the destination root.

config<Hash>

  give :verbose => false to not log the status.

#### Examples¶ ↑

    template "README", "doc/README"

    template "doc/README"

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 112
    def template(source, *args, &block)
      config = args.last.is_a?(Hash) ? args.pop : {}
      destination = args.first || source.sub(/#{TEMPLATE_EXTNAME}$/, "")

      source  = File.expand_path(find_in_source_paths(source.to_s))
      context = config.delete(:context) || instance_eval("binding")

      create_file destination, nil, config do
        content = CapturableERB.new(::File.binread(source), nil, "-", "@output_buffer").tap do |erb|
          erb.filename = source
        end.result(context)
        content = yield(content) if block
        content
      end
    end

thor(command, *args) click to toggle source

Run a thor command. A hash of options can be given and it's converted to switches.

#### Parameters¶ ↑

command<String>

  the command to be invoked

args<Array>

  arguments to the command

config<Hash>

  give :verbose => false to not log the status, :capture => true to hide to output. Other options are given as parameter to Bundler::Thor.

#### Examples¶ ↑

    thor :install, "http://gist.github.com/103208"
    #=> thor install http://gist.github.com/103208

    thor :list, :all => true, :substring => 'rails'
    #=> thor list --all --substring=rails

    # File lib/bundler/vendor/thor/lib/thor/actions.rb, line 289
    def thor(command, *args)
      config  = args.last.is_a?(Hash) ? args.pop : {}
      verbose = config.key?(:verbose) ? config.delete(:verbose) : true
      pretend = config.key?(:pretend) ? config.delete(:pretend) : false
      capture = config.key?(:capture) ? config.delete(:capture) : false

      args.unshift(command)
      args.push Bundler::Thor::Options.to_switches(config)
      command = args.join(" ").strip

      run command, :with => :thor, :verbose => verbose, :pretend => pretend, :capture => capture
    end

uncomment_lines(path, flag, *args) click to toggle source

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<String>

  path of the file to be changed

flag<Regexp|String>

  the regexp or string used to decide which lines to uncomment

config<Hash>

  give :verbose => false to not log the status.

#### Example¶ ↑

    uncomment_lines 'config/initializers/session_store.rb', /active_record/

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 282
    def uncomment_lines(path, flag, *args)
      flag = flag.respond_to?(:source) ? flag.source : flag

      gsub_file(path, /^(\s*)#[[:blank:]]*(.*#{flag})/, '\1\2', *args)
    end

### Private Instance Methods

capture(*args) { |*args| ... } click to toggle source

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 339
    def capture(*args)
      with_output_buffer { yield(*args) }
    end

concat(string) click to toggle source

    # File lib/bundler/vendor/thor/lib/thor/actions/file_manipulation.rb, line 335
    def concat(string)
      @output_buffer.concat(string)
    end