Loading javascript files from the vendors in CakePHP 3

Question

My problem is how to load .js files from the vendors folder in CakePHP 3.0. I have included twitter bootstrap via composer. The .js file is located in /vendor/twbs/bootstrap

Answer 1

I don't like to copy files so based on previous answers i have created function which create links to bootstrap files. Note, that for Bootstrap4, which distributed without fonts now.

/**
 * Create Bootstrap4 assets links
 *
 * @param string $dir The application's root directory.
 * @param \Composer\IO\IOInterface $io IO interface to write to console.
 * @return void
 */

public static function createBootstrapLinks($dir, $io) {
    $ds = DIRECTORY_SEPARATOR;
    if (!file_exists($dir . $ds . 'vendor' . $ds . 'twbs' . $ds . 'bootstrap'))
    {
        $io->write('Bootstrap is not installed. Include Bootstrap into project: composer require twbs/bootstrap');
        return;
    }
    $bootstrapAssetsDir = realpath($dir . $ds . 'vendor' . $ds . 'twbs' . $ds . 'bootstrap' . $ds . 'dist');
    $bootstrapAssets = [
        'css' => $bootstrapAssetsDir . $ds . 'css' . $ds,
        'js' => $bootstrapAssetsDir . $ds . 'js' . $ds
    ];
    $webrootDir = realpath($dir . $ds . 'webroot');

    $webrootPathes = [
        'css' => $webrootDir . $ds . 'css' . $ds . 'bootstrap',
        'js' => $webrootDir . $ds . 'js' . $ds . 'bootstrap'
    ];

    foreach ($bootstrapAssets as $type => $asset)
    {
        if (!file_exists($asset))
        {
            $io->write('Asset `' . $asset . '` does not exists. Unable to create link.');
            continue;
        }
        $name = isset($webrootPathes[$type]) ? $webrootPathes[$type] : ($webrootDir . $type . $ds . 'bootstrap');
        if (file_exists($name))
        {
            switch(filetype($name))
            {
                case 'link':
                    $link_target = readlink($name);
                    if ($link_target == $asset)
                    {
                        $io->write('Correct link to `' . $asset . '` already exists. Fine.');
                    }
                    else
                    {
                        $io->write('Link `' . $name . '` already exists and points to `'. $link_target .'`. Unable to create link.');
                    }
                    break;
                case 'dir':
                    $io->write('Dir `' . $name . '` already exists. Unable to create link.');
                    break;
                default:
                    $io->write(filetype($name).' `' . $name . '` already exists. Unable to create link.');
                    break;
            }
        }
        else
        {
            $io->write('Link `' . $name . '` to `' . $asset . '` created. Fine.');
            symlink($asset, $name);
        }
    }
}