jmerle / gulp-java-merger

A gulp plugin to make it easy to merge multiple .java files into one.

Gulp Java Merger

A gulp plugin to make it easy to merge multiple .java files into one, aswell as automatically removing 'public' from class declarations (one .java file can't have multiple public classes/enumerations/interfaces) and making sure there are no duplicate imports.

Install

Install with npm.

npm install --save-dev gulp-java-merger

Example

var merge = require('gulp-java-merger');

gulp.task('default', function() {
    gulp.src('input/*.java')
        .pipe(merge('merged.java', {
            publicMain: true
        }))
        .pipe(gulp.dest('output/')); 
});

Usage

merge(fileName, options)

• fileName: The name of the generated file.
• options
  • publicMain (default: false): Make all classes containing a public static void main method public.
  • removePackage (default: false): Remove the package line on-top of the file.

A few things

• Only works for a single package (i.e. you can't merge two packages into one bundled file).
• Assumes all files have only one class/enum/interface in it (not counting inner classes).

Note that this is not meant for production code. It's originally made to merge Java bot code in CodinGame contests.