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Deprecation notice: This project is outdated. Alternatives:

• google-closure-compiler-js No Java needed!
• google-closure-compiler Offical wrapper
• closure-compiler
• closure-builder

The all-round carefree package. Automatically downloads and sets upClosure Compilerand a JRE built fromOpenJDK if required. No environment variables to set, works out ofthe box.

Install:npm -g install closurecompiler

Installing globally is recommended if no global JRE is available and the bundled JRE needs to be downloaded, which isabout 45mb large.

The API is quite simple and fully explained in a few lines of code:

varClosureCompiler=require("closurecompiler");ClosureCompiler.compile(['file1.js','file2.js'],{// Options in the API exclude the "--" prefixcompilation_level:"ADVANCED_OPTIMIZATIONS",// Capitalization does not matterFormatting:"PRETTY_PRINT",// If you specify a directory here, all files inside are usedexterns:["externs/file3.js","externs/contrib/"],// ^ As you've seen, multiple options with the same name are//   specified using an array.        ...},function(error,result){if(result){// Write result to file// Display error (warnings from stderr)}else{// Display error...}});

Usage:   ccjs sourceFiles...|- [--option=value --flagOption ...] [> outFile]

The API andccjs support all the command line options of Closure Compiler except--js and--js_output_file.

• See the output of ccjs --help.

Additional options:

• JVM parameters-xms and-xmx are supported (lower case) just in case that you run out of heap space compiling a rather large code base. When omitted,-xmx defaults to 1024m.
• -compiler_jar specifies the absolute path to the Closure Compiler jar file. If not specified the latest installed version will be used.

• grunt-closurecompiler
• gulp-closure-compiler

• Closure Compiler official
• Closure Compiler contrib
• Closure Compiler common libraries

ClosureCompiler.js depends on theclosurecompiler-externs package,an npm distribution ofnode.js Closure Compiler Externs,which includes externs for all of node's core modules. As a result, specifiying--externs=node automatically includesall node.js specific externs in your compile step. If you are using non-core modules, you may still needadditional externs for these.

To update ClosureCompiler.js and/or the underlying Closure Compiler package, just runnpm update. This willautomatically download and set up the latest version of Closure Compiler to be used by ClosureCompiler.js.

If you want to use a custom Closure Compiler build for whatever reason, just replace the files in thecompiler/directory.

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Feross Aboukhadijeh

Apache License, Version 2.0 -http://www.apache.org/licenses/LICENSE-2.0.html

MPL 2.0 License -https://developer.mozilla.org/en-US/docs/Rhino/License

Binary License for OpenJDK -http://openjdk.java.net/legal/binary-license-2007-05-08.html

This package is not officially supported by Google, Mozilla or Oracle. All rights belong to their respective owners.