dist.js

/**
 * Deploy to a branch in the same repository.
 *
 * `gulp release [--releaseType=major|minor|patch]`
 *
 * By default, bumps the version using semantic release, creates
 * a distribution from the master branch and deploys to dist branch.
 *
 * A `.gitignore-dist` file can be created to define ignored files
 * for the release.
 *
 * The task 'update-wp-style-css' is for WordPress themes only. We need
 * an adjusted task for WordPress plugins (or remove the task if it's
 * not a WordPress project).
 *
 * Examples:
 *
 * - `gulp release`
 * - `gulp release --releaseType=major`
 *
 */
var gulp = require('gulp'),
    bump = require('gulp-bump');
    shell = require('gulp-shell'),
    prompt = require('gulp-prompt'),
    runSequence = require('run-sequence'),
    minimist = require('minimist'),
    fs = require('fs'),
    replacestream = require('replacestream');

var knownOptions = {
  releaseType: 'patch',
  alias: { 'r': 'releaseType' }
};

var options = minimist(process.argv.slice(2), knownOptions);

var settings = {
  branch: {
    master: "master",
    dist: "dist"
  },
  remote: 'origin'
}

var wordpress = {
  theme: './scss/style.scss'
};

function getPackageJsonVersion() {
  return JSON.parse(fs.readFileSync('./package.json', 'utf8')).version;
}

gulp.task('update-wp-theme-file', function(cb) {
  var read = fs.createReadStream(wordpress.theme);
      write = fs.createWriteStream(wordpress.theme, {flags: 'r+'});

  return read
    .pipe(replacestream(/(Version:)(\s*)(.*)/, '$1$2' + getPackageJsonVersion()))
    .pipe(write);
});

gulp.task('release', function(callback) {
  gulp.src('/')
    .pipe(prompt.prompt([{
      type: 'confirm',
      name: 'task',
      message: 'This will deploy to the ' + settings.branch.dist + ' Branch. It auto commits and pushes to the ' + settings.branch.master + '. Sure?'
    }],
     function(res) {
      runSequence(
        'bump-version',
        'vendor-css',
        'js',
        'sass',
        'update-wp-theme-file', // themes only
        'deploy',
        'vendor-css',
        'js',
        'sass',
        function (error) {
          if (error) {
            console.log(error.message);
          } else {
            console.log('RELEASE FINISHED SUCCESSFULLY: ' + getPackageJsonVersion());
          }
          callback(error);
        });
    }));
});

gulp.task('bump-version', function() {
  return gulp.src('./package.json')
  .pipe(bump({type: options.releaseType}))
  .pipe(gulp.dest('./'));
});

gulp.task('deploy', function() {
  return gulp.src('/', {read: false})
    .pipe(shell(
      [
        'git checkout ' + settings.branch.master,
        'git checkout ' + settings.branch.master,
        'git add --all',
        'git commit -m "Auto-Commit for deployment "'+ getPackageJsonVersion(),
        'git tag -a '+ getPackageJsonVersion() + '-dev -m "Version ' + getPackageJsonVersion() + '"',
        'git push ' + settings.remote + ' ' + settings.branch.master + ' ' + getPackageJsonVersion() + '-dev',
        'git checkout -B ' + settings.branch.dist,
        'rm .gitignore',
        'mv .gitignore-dist .gitignore',
        'git rm -r --cached .',
        'git add --all',
        'git commit -m "build for release version "' + getPackageJsonVersion(),
        'git tag -a '+ getPackageJsonVersion() + '-dist -m "Version ' + getPackageJsonVersion() + '"',
        'git push --force ' + settings.remote + ' ' + settings.branch.dist + ' ' + getPackageJsonVersion() + '-dist',
        'git checkout ' + settings.branch.master,
        'git branch -D ' + settings.branch.dist,
        'echo "Deployed Version: "' + getPackageJsonVersion()
      ]
    , {ignoreErrors: true, verbose: true}));
});

gulp.task('default');