104 lines
3.1 KiB
Ruby
104 lines
3.1 KiB
Ruby
require 'thor/actions/empty_directory'
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class Thor
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module Actions
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# Create a new file relative to the destination root with the given data,
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# which is the return value of a block or a data string.
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#
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# ==== Parameters
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# destination<String>:: the relative path to the destination root.
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# data<String|NilClass>:: the data to append to the file.
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# config<Hash>:: give :verbose => false to not log the status.
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#
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# ==== Examples
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#
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# create_file "lib/fun_party.rb" do
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# hostname = ask("What is the virtual hostname I should use?")
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# "vhost.name = #{hostname}"
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# end
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#
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# create_file "config/apache.conf", "your apache config"
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#
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def create_file(destination, *args, &block)
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config = args.last.is_a?(Hash) ? args.pop : {}
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data = args.first
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action CreateFile.new(self, destination, block || data.to_s, config)
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end
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alias_method :add_file, :create_file
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# CreateFile is a subset of Template, which instead of rendering a file with
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# ERB, it gets the content from the user.
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#
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class CreateFile < EmptyDirectory #:nodoc:
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attr_reader :data
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def initialize(base, destination, data, config = {})
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@data = data
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super(base, destination, config)
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end
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# Checks if the content of the file at the destination is identical to the rendered result.
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#
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# ==== Returns
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# Boolean:: true if it is identical, false otherwise.
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#
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def identical?
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exists? && File.binread(destination) == render
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end
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# Holds the content to be added to the file.
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#
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def render
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@render ||= if data.is_a?(Proc)
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data.call
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else
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data
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end
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end
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def invoke!
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invoke_with_conflict_check do
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FileUtils.mkdir_p(File.dirname(destination))
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File.open(destination, 'wb') { |f| f.write render }
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end
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given_destination
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end
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protected
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# Now on conflict we check if the file is identical or not.
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#
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def on_conflict_behavior(&block)
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if identical?
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say_status :identical, :blue
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else
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options = base.options.merge(config)
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force_or_skip_or_conflict(options[:force], options[:skip], &block)
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end
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end
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# If force is true, run the action, otherwise check if it's not being
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# skipped. If both are false, show the file_collision menu, if the menu
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# returns true, force it, otherwise skip.
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#
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def force_or_skip_or_conflict(force, skip, &block)
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if force
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say_status :force, :yellow
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block.call unless pretend?
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elsif skip
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say_status :skip, :yellow
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else
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say_status :conflict, :red
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force_or_skip_or_conflict(force_on_collision?, true, &block)
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end
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end
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# Shows the file collision menu to the user and gets the result.
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#
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def force_on_collision?
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base.shell.file_collision(destination) { render }
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end
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end
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end
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end
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