Registry / devops / closurecompiler

closurecompiler

library1.6.1jsnpmunverified

A Node.js wrapper for Google Closure Compiler that automatically downloads and sets up a JRE (from OpenJDK) and the compiler JAR. Version 1.6.1 (circa 2015) is the last stable release. This project is **deprecated** and no longer maintained; users should migrate to google-closure-compiler or google-closure-compiler-js. Key differentiator: self-contained (bundles JRE), but outdated compared to official or Java-free alternatives.

devops

npm install closurecompiler

github ↗package ↗

INSTALL

IMPORT

SIG · CLOSURECOMPILER

closurecompiler

devopsjavascriptv1.6.1

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.

compile

✓ var ClosureCompiler = require('closurecompiler');

✗ import ClosureCompiler from 'closurecompiler'

CJS only; no default ESM export.

ClosureCompiler.compile

✓ ClosureCompiler.compile(files, options, callback)

✗ ClosureCompiler.compile(files, callback, options)

Second argument must be options object, not callback.

ccjs CLI

✓ ccjs sourceFiles... [options] > output.js

✗ ccjs sourceFiles... --js_output_file output.js

Use shell redirection for output; --js_output_file is not supported.

Demonstrates basic usage: compile a JavaScript file with advanced optimizations and Node.js externs.

var ClosureCompiler = require('closurecompiler'); ClosureCompiler.compile(['input.js'], { compilation_level: 'ADVANCED_OPTIMIZATIONS', warning_level: 'VERBOSE', externs: ['node'] }, function(err, result) { if (err) console.error(err); else console.log(result); });

closure-compiler --version

Debug

Known issues

deprecatedThis package is deprecated. Alternatives: google-closure-compiler, google-closure-compiler-js

fix

Migrate to google-closure-compiler or google-closure-compiler-js

affects: >=1.0.0

gotchaRequires Java runtime; if JRE not found, package may download a bundled OpenJDK ~45MB

fix

Install Java beforehand to avoid the download

affects: >=1.0.0

gotchaOptions are case-insensitive in the API but must be snake_case (not camelCase)

fix

Use compilation_level instead of compilationLevel

affects: >=1.0.0

gotchaThe --js_output_file flag is NOT supported; use shell redirection

fix

Redirect stdout to file: ccjs files > output.js

affects: >=1.0.0

Errors

Common errors & fixes

Error: Could not find any Java installation

No JRE/JDK installed and automatic download failed

fix

Install Java or ensure JAVA_HOME is set

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed

Out of memory during compilation of large codebase

fix

Increase JVM heap via options: -xmx2048m

Error: spawn ENOENT

ccjs command not found or Java not available

fix

Install globally with -g or check Java installation

Upgrade

Version history

1.6.1latest on npm

Audit

Dependencies

closurecompiler-externsoptionalProvides Node.js externs for closure compiler

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/dcodeIO/ClosureCompiler.js ↗

packagehttps://www.npmjs.com/package/closurecompiler ↗