Class: Juicer::Minifyer::YuiCompressor
- Inherits:
-
Object
- Object
- Juicer::Minifyer::YuiCompressor
- Defined in:
- lib/juicer/minifyer/yui_compressor.rb
Overview
Provides an interface to the YUI compressor library using Juicer::Shell::Binary. The YUI compressor library is implemented using Java, and as such Java is required when running this code. Also, the YUI jar file has to be provided.
The YUI Compressor is invoked using the java binary and the YUI Compressor jar file.
Providing the Jar file (usually yuicompressor-x.y.z.jar) can be done in several ways. The following directories are searched (in preferred order)
1. The directory specified by the option :bin_path
2. The directory specified by the environment variable $YUIC_HOME, if set
3. Current working directory
For more information on how the Jar is located, see Juicer::Minify::YuiCompressor.locate_jar
- Author
-
Christian Johansen ([email protected])
- Copyright
-
Copyright © 2008-2009 Christian Johansen
- License
-
MIT
Usage example =
yuic = Juicer::Minifyer::YuiCompressor.new yuic.java = “/usr/local/bin/java” # If ‘java’ is not on path yuic.path << “/home/user/java/yui_compressor/” yuic.save(“”, “”)
Instance Method Summary collapse
-
#initialize(options = {}) ⇒ YuiCompressor
constructor
A new instance of YuiCompressor.
-
#save(file, output = nil, type = nil) ⇒ Object
Compresses a file using the YUI Compressor.
Methods included from Chainable
included, #next_in_chain, #next_in_chain=
Methods included from Binary
#command, #execute, #get_opt, #locate, #method_missing, #options, #path, #set_opt, #set_opts
Constructor Details
#initialize(options = {}) ⇒ YuiCompressor
Returns a new instance of YuiCompressor.
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# File 'lib/juicer/minifyer/yui_compressor.rb', line 41 def initialize( = {}) bin = .delete(:java) || "java" bin_path = .delete(:bin_path) || nil @jar = nil super(bin, ) path << bin_path if bin_path end |
Dynamic Method Handling
This class handles dynamic methods through the method_missing method in the class Juicer::Binary
Instance Method Details
#save(file, output = nil, type = nil) ⇒ Object
Compresses a file using the YUI Compressor. Note that the :bin_path option needs to be set in order for YuiCompressor to find and use the YUI jar file. Please refer to the class documentation for how to set this.
file = The file to compress output = A file or stream to save the results to. If not provided the
original file will be overwritten
type = Either :js or :css. If this parameter is not provided, the type
is guessed from the suffix on the input file name
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# File 'lib/juicer/minifyer/yui_compressor.rb', line 60 def save(file, output = nil, type = nil) type = type.nil? ? file.split('.')[-1].to_sym : type output ||= file use_tmp = !output.is_a?(String) output = File.join(Dir::tmpdir, File.basename(file) + '.min.tmp.' + type.to_s) if use_tmp FileUtils.mkdir_p(File.dirname(output)) result = execute(%Q{-jar "#{locate_jar}" -o "#{output}" "#{file}"}) if use_tmp # If no output file is provided, YUI compressor will output.puts IO.read(output) # compress to a temp file. This file should be cleared File.delete(output) # out after we fetch its contents. end end |