gulp-hash-history

npm install gulp-hash-history

Basic usage

var hashHistory = require('gulp-hash-history');
 
gulp.src('./js/**/*.js')
    .pipe(hashHistory.getProps()) // get properties
    .pipe(gulp.dest(dest)),
    .pipe(hashHistory.history({
        destHistory: 'static/history.json', // read old file
        destLatest: 'static/latest.json', // read old file
        dest: dest, // if want to delete old versions
        key: 'script.legacy' // js object prefix
    }));