diff options
Diffstat (limited to 'railties/lib/vendor/thor-0.11.3/lib/thor/actions.rb')
| -rw-r--r-- | railties/lib/vendor/thor-0.11.3/lib/thor/actions.rb | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/railties/lib/vendor/thor-0.11.3/lib/thor/actions.rb b/railties/lib/vendor/thor-0.11.3/lib/thor/actions.rb new file mode 100644 index 0000000000..b8cfde1940 --- /dev/null +++ b/railties/lib/vendor/thor-0.11.3/lib/thor/actions.rb @@ -0,0 +1,270 @@ +require 'fileutils' + +Dir[File.join(File.dirname(__FILE__), "actions", "*.rb")].each do |action| + require action +end + +class Thor + module Actions + attr_accessor :behavior + + # On inclusion, add some options to base. + # + def self.included(base) #:nodoc: + base.extend ClassMethods + return unless base.respond_to?(:class_option) + + base.class_option :pretend, :type => :boolean, :aliases => "-p", :group => :runtime, + :desc => "Run but do not make any changes" + + base.class_option :force, :type => :boolean, :aliases => "-f", :group => :runtime, + :desc => "Overwrite files that already exist" + + base.class_option :skip, :type => :boolean, :aliases => "-s", :group => :runtime, + :desc => "Skip files that already exist" + + base.class_option :quiet, :type => :boolean, :aliases => "-q", :group => :runtime, + :desc => "Supress status output" + end + + module ClassMethods + # Hold source paths for one Thor instance. source_paths_for_search is the + # method responsible to gather source_paths from this current class, + # inherited paths and the source root. + # + def source_paths + @source_paths ||= [] + end + + # Returns the source paths in the following order: + # + # 1) This class source paths + # 2) Source root + # 3) Parents source paths + # + def source_paths_for_search + @source_paths_for_search ||= begin + paths = [] + paths += self.source_paths + paths << self.source_root if self.respond_to?(:source_root) + paths += from_superclass(:source_paths, []) + paths + end + end + end + + # 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. It's also known + # as destination root. + # + 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 + + # Wraps an action object and call it accordingly to the thor class behavior. + # + def action(instance) + if behavior == :revoke + instance.revoke! + else + instance.invoke! + end + end + + # Returns the root for this thor class (also aliased as destination root). + # + def destination_root + @destination_stack.last + end + + # Sets the root for this thor class. Relatives path are added to the + # directory where the script was invoked and expanded. + # + def destination_root=(root) + @destination_stack ||= [] + @destination_stack[0] = File.expand_path(root || '') + end + + # Returns the given path relative to the absolute root (ie, root where + # the script started). + # + def relative_to_original_destination_root(path, remove_dot=true) + path = path.gsub(@destination_stack[0], '.') + remove_dot ? (path[2..-1] || '') : path + end + + # Receives a file or directory and search for it in the source paths. + # + def find_in_source_paths(file) + relative_root = relative_to_original_destination_root(destination_root, false) + paths = self.class.source_paths_for_search + + paths.each do |source| + source_file = File.expand_path(file, File.join(source, relative_root)) + return source_file if File.exists?(source_file) + end + + if paths.empty? + raise Error, "You don't have any source path defined for class #{self.class.name}. To fix this, " << + "you can define a source_root in your class." + else + raise Error, "Could not find #{file.inspect} in source paths." + end + end + + # 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. + # + def inside(dir='', config={}, &block) + verbose = config.fetch(:verbose, false) + + say_status :inside, dir, verbose + shell.padding += 1 if verbose + @destination_stack.push File.expand_path(dir, destination_root) + + FileUtils.mkdir_p(destination_root) unless File.exist?(destination_root) + FileUtils.cd(destination_root) { block.arity == 1 ? yield(destination_root) : yield } + + @destination_stack.pop + shell.padding -= 1 if verbose + end + + # Goes to the root and execute the given block. + # + def in_root + inside(@destination_stack.first) { yield } + end + + # 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" + # + def apply(path, config={}) + verbose = config.fetch(:verbose, true) + path = find_in_source_paths(path) unless path =~ /^http\:\/\// + + say_status :apply, path, verbose + shell.padding += 1 if verbose + instance_eval(open(path).read) + shell.padding -= 1 if verbose + end + + # Executes a command. + # + # ==== Parameters + # command<String>:: the command to be executed. + # config<Hash>:: give :verbose => false to not log the status. Specify :with + # to append an executable to command executation. + # + # ==== Example + # + # inside('vendor') do + # run('ln -s ~/edge rails') + # end + # + 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) + `#{command}` unless options[:pretend] + end + + # 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. + # + def run_ruby_script(command, config={}) + return unless behavior == :invoke + run "#{command}", config.merge(:with => Thor::Util.ruby_command) + end + + # Run a thor command. A hash of options can be given and it's converted to + # switches. + # + # ==== Parameters + # task<String>:: the task to be invoked + # args<Array>:: arguments to the task + # config<Hash>:: give :verbose => false to not log the status. Other options + # are given as parameter to 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 + # + def thor(task, *args) + config = args.last.is_a?(Hash) ? args.pop : {} + verbose = config.key?(:verbose) ? config.delete(:verbose) : true + + args.unshift task + args.push Thor::Options.to_switches(config) + command = args.join(' ').strip + + run command, :with => :thor, :verbose => verbose + end + + protected + + # Allow current root to be shared between invocations. + # + def _shared_configuration #:nodoc: + super.merge!(:destination_root => self.destination_root) + end + + def _cleanup_options_and_set(options, key) #:nodoc: + case options + when Array + %w(--force -f --skip -s).each { |i| options.delete(i) } + options << "--#{key}" + when Hash + [:force, :skip, "force", "skip"].each { |i| options.delete(i) } + options.merge!(key => true) + end + end + + end +end |