Class: Widow

Inherits:
Object
  • Object
show all
Defined in:
lib/widow.rb

Defined Under Namespace

Classes: CompileError, Exclude

Constant Summary collapse

@@mime_map = 
[
	['js', 'application/javascript'],
	['css', 'text/css'],
	['html', 'text/html']
]

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Widow

Returns a new instance of Widow.



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# File 'lib/widow.rb', line 28

def initialize options = {}
	log_level = options.delete(:debug) ? :debug : :info
	@logger = Logger.new(STDOUT, level: log_level)
	@logger.info "log level #{log_level}"
end

Class Method Details

.perform(method, options) ⇒ Object 



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# File 'lib/widow.rb', line 22

def self.perform method, options
	widow = Widow.new(options)
	widow.public_send(method, options)
	widow.kill
end

Instance Method Details

#cut(options = {}) ⇒ Object 



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# File 'lib/widow.rb', line 34

def cut options = {}
	options = {from: Pathname.pwd, to: Pathname.pwd}.merge options
	from = Pathname.new(options[:from])
	to = Pathname.new(options[:to])
	@logger.info "cut from #{from} to #{to}"
	exclude = Exclude.new from, @logger

	Find.find from do |path|
		path = Pathname.new path
		next if path == from
		if exclude.ignored? path
			@logger.info "#{path} ignored"
			next
		end
		begin
			make from, path.relative_path_from(from), to
		rescue CompileError
		end
	end
	return
end

#kill ⇒ Object

Called to clean up



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# File 'lib/widow.rb', line 117

def kill
	@logger.close
	return
end

#spin(options = {}) ⇒ Object 



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# File 'lib/widow.rb', line 56

def spin options = {}
	options = {from: Pathname.pwd, to: Pathname.pwd, port: 8888, serve_source: false}.merge options
	from = Pathname.new(options[:from])
	to = Pathname.new(options[:to])
	@logger.info "spin from #{from} to #{to}"
	@logger.info "port #{options[:port]}"
	@logger.info "serve_source = #{options[:serve_source]}"
	exclude = Exclude.new from, @logger

	mime_to_ext = Hash.new { |hash, key| hash[key] = [] }
	Tilt.lazy_map.map do |ext, _|
		begin
			tilt = Tilt[ext]
			@logger.info "loaded template #{tilt} for extention #{ext}"
			next [tilt.metadata[:mime_type] || tilt.default_mime_type, ext]
		rescue LoadError
			next
		end
	end.compact.each do | mime_type, ext |
		mime_to_ext[mime_type] << ext
	end

	Rack::Handler.default.run(
		Proc.new do |env|
			@logger.debug "#{env["PATH_INFO"]} requested"

			file = Pathname.new env["PATH_INFO"][1..-1]
			file += 'index.html' if (from + file).directory?
			search = from + file.dirname + "#{file.basename file.extname}.{#{(mime_to_ext[mime_type file] + [file.extname[1..-1]]).join ?,}}"
			@logger.debug "searching for \'#{search}\'"
			original = Pathname.glob(search).first
			file = to + file

			if (exclude.ignored?(original) && !(options[:serve_source] && original.basename == file.basename))
				@logger.info "#{file} ignored"
				next file_not_found
			elsif (original.nil? || !original.exist?)
				@logger.debug "source not found"
				next file_not_found
			end
			@logger.debug "#{original} found"

			begin
				if !file.exist? || file.mtime < original.mtime
					if original.basename == file.basename
						proxy from, original.relative_path_from(from), to
					else
						make from, original.relative_path_from(from), to
					end
				end
				next [200, {'Content-Type' => mime_type(file)}, [file.file? ? file.read : '']]
			rescue CompileError => e
				next [502, {'Content-Type' => 'text/html'}, [e.message]]
			end
		end,
		Port: options[:port]
	)
	return
end