Registry / web-framework / grunt-closure-compiler

grunt-closure-compiler

library0.0.21jsnpmunverified

A Grunt task for Google Closure Compiler, a JavaScript minifier and optimizer. The latest version is 0.0.21, but the package appears to be stale with no recent updates. It wraps the Closure Compiler JAR file, requiring manual download of the compiler. Compared to alternative Grunt plugins like grunt-contrib-uglify, this offers access to Closure Compiler's advanced optimizations. Users must handle Java dependency, set up environment variables, and manage report files. The package is limited in features and lacks modern ES module support.

web-framework devops

npm install grunt-closure-compiler

github ↗package ↗

INSTALL

IMPORT

SIG · GRUNT-CLOSURE-COMP

grunt-closure-compiler

web-frameworkjavascriptv0.0.21

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

closure-compiler task

✓ grunt.loadNpmTasks('grunt-closure-compiler');

✗ require('grunt-closure-compiler');

This is a Grunt plugin, not a module. Use grunt.loadNpmTasks in Gruntfile

Task configuration

✓ grunt.initConfig({ 'closure-compiler': { ... } });

✗ grunt.initConfig({ closureCompiler: { ... } });

The task name must be 'closure-compiler' (with hyphen) in initConfig

Closure Path

✓ closurePath: '/path/to/closure-compiler'

✗ closurePath: '/path/to/closure-compiler/compiler.jar'

Point to the directory containing the JAR, not the JAR itself

Configures a Grunt task using grunt-closure-compiler to minify a JS file with Closure Compiler. Requires manual download of compiler.jar.

// Gruntfile.js module.exports = function(grunt) { grunt.initConfig({ 'closure-compiler': { frontend: { closurePath: process.env.CLOSURE_PATH || '/path/to/closure-compiler', js: 'src/input.js', jsOutputFile: 'build/output.min.js', maxBuffer: 500, options: { compilation_level: 'ADVANCED_OPTIMIZATIONS' } } } }); grunt.loadNpmTasks('grunt-closure-compiler'); grunt.registerTask('default', ['closure-compiler']); };

grunt --version

Debug

Known issues

breakingRequires Java Runtime to be installed and accessible

fix

Install Java (JRE) and ensure 'java' is in PATH

affects: >=0.0.1

breakingClosure Compiler JAR must be manually downloaded; no npm dependency

fix

Download compiler.jar from https://dl.google.com/closure-compiler/compiler-latest.zip and set 'closurePath' or CLOSURE_PATH environment variable

affects: >=0.0.1

deprecatedGrunt 0.4+ compatibility issues; not updated for Grunt 1.x

fix

Use grunt-contrib-uglify or grunt-closure-compiler v0.0.21 with Grunt 0.4, or migrate to modern bundlers

affects: >=0.0.1

gotchamaxBuffer property uses kilobytes, not bytes

fix

Set maxBuffer to desired size in KB (e.g., 500 for 500KB)

affects: >=0.0.1

gotchaOutput file is overwritten without warning if it exists

fix

Ensure jsOutputFile path does not accidentally overwrite important files

affects: >=0.0.1

Errors

Common errors & fixes

maxBuffer exceeded

Closure Compiler output exceeds default buffer size (~200KB)

fix

Set 'maxBuffer' property in task config to a larger value in KB (e.g., 500)

FATAL ERROR: JAVA not found

Java Runtime is not installed or not in PATH

fix

Install Java (JRE) and ensure 'java' command is available

Error: Could not find or load main class com.google.javascript.jscomp.CommandLineRunner

closurePath is pointing to the JAR file instead of its directory, or the JAR is missing

fix

Set 'closurePath' to the directory containing compiler.jar, not the JAR itself

Upgrade

Version history

0.0.21latest on npm

Audit

Dependencies

gruntrequiredPeer dependency: this plugin requires Grunt to run

Agent activity

6 hits · last 30 days

node

Resources

githubhttps://github.com/gmarty/grunt-closure-compiler ↗

packagehttps://www.npmjs.com/package/grunt-closure-compiler ↗