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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<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
#
# copy_file "README", "doc/README"
#
# copy_file "doc/README"
#
def copy_file(source, destination=nil, config={})
destination ||= source
source = File.expand_path(find_in_source_paths(source.to_s))
create_file destination, nil, config do
File.read(source)
end
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<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
#
def get(source, destination=nil, config={}, &block)
source = File.expand_path(find_in_source_paths(source.to_s)) unless source =~ /^http\:\/\//
render = open(source).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<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"
#
def template(source, destination=nil, config={})
destination ||= source
source = File.expand_path(find_in_source_paths(source.to_s))
context = instance_eval('binding')
create_file destination, nil, config do
ERB.new(::File.read(source), nil, '-').result(context)
end
end
# 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/*", 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 inject_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_file 'config/environments/test.rb', 'config.gem "rspec"'
#
# prepend_file 'config/environments/test.rb' do
# 'config.gem "rspec"'
# end
#
def prepend_file(path, *args, &block)
config = args.last.is_a?(Hash) ? args.pop : {}
config.merge!(:after => /\A/)
inject_into_file(path, *(args << config), &block)
end
# Append text to a file. Since it depends on inject_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_file 'config/environments/test.rb', 'config.gem "rspec"'
#
# append_file 'config/environments/test.rb' do
# 'config.gem "rspec"'
# end
#
def append_file(path, *args, &block)
config = args.last.is_a?(Hash) ? args.pop : {}
config.merge!(:before => /\z/)
inject_into_file(path, *(args << config), &block)
end
# Injects text right after the class definition. Since it depends on
# inject_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", " 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/)
inject_into_file(path, *(args << config), &block)
end
# 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
#
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.read(path)
content.gsub!(flag, *args, &block)
File.open(path, 'wb') { |file| file.write(content) }
end
end
# 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'
#
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
end
end
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