Deploy ignored, compiled files to Heroku with Gulp

Gulpfile.js

// Use shell commands to commit your ignored, compiled files, push
// everything to Heroku, and reset your commit like it never happened

gulp.task('deploy', ['other', 'compilation', 'tasks'], function () {
    var shell = require('shelljs');

    if (!shell.which('git')) {
        console.error('You need git installed to deploy.');
        shell.exit(1);
    }

    // add the build directory, assuming it is named ./public
    // change this to ./dist or ./build as necessary
    if (shell.exec('git add --force ./public/**/*').code !== 0) {
        console.error('Failed to add build directory to commit');
        shell.exit(1);
    }

    // create a new commit with the build directory
    if (shell.exec('git commit -m "Add the build folder"').code !== 0) {
        console.error('Committing changes failed');
        shell.exit(1);
    }

    // push our changes to a remote named heroku; replace this with
    // a full url to the heroku repo if you don't have a named remote
    if (shell.exec('git push --force heroku master').code !== 0) {
        console.error('Pushing to heroku failed');
        shell.exit(1);
    }

    // undo our commit, so the compiled files always stay out of our repo
    if (shell.exec('git reset --hard HEAD~1').code !== 0) {
        console.error('Reverting our commit failed');
        shell.exit(1);
    }
});