gulpfile.js

var gulp = require('gulp');
var replace = require('gulp-replace');
var bump = require('gulp-bump');

//
// Bump new patch version
// npm run bump:patch
//
gulp.task('bump:patch', function() {
  gulp.src('package.json')
    .pipe(bump({
      type: 'patch'
    }))
    .pipe(gulp.dest('./'));
});

//
// Bump new patch version
// $ npm run bump:minor
//
gulp.task('bump:minor', function() {
  gulp.src('package.json')
    .pipe(bump({
      type: 'minor'
    }))
    .pipe(gulp.dest('./'));
});

//
// Bump new major version
// $ npm run bump:major
//
gulp.task('bump:major', function() {
  gulp.src('package.json')
    .pipe(bump({
      type: 'major'
    }))
    .pipe(gulp.dest('./'));
});

//
// Update meteor version
// $ npm run meteor
//
gulp.task('meteor', function() {
  // current version
  var version = require('./package.json').version;
  // regex for package version and npm dependency version
  var regex = /(version: ')([^\']+)'/gi;

  return gulp.src('package.js')
    // update version of meteor package
    .pipe(replace(regex, '$1' + version + "'"))
    .pipe(gulp.dest('./'));
});