Extends Appzcoder\CrudGenerator generate lang command. Particulary disable capital first letter in lang filenames.

CrudLangCommandCustom.php

<?php

namespace App\Console\Commands;

use Appzcoder\CrudGenerator\Commands\CrudLangCommand;
use File;

/**
 * Extends Appzcoder\CrudGenerator generate lang command. Particulary disable capital first letter in lang filenames.
 */
class CrudLangCommandCustom extends CrudLangCommand
{
    /**
     * Execute the console command.
     *
     * @return void
     */
    public function handle()
    {
        $this->crudName = lcfirst($this->argument('name'));
        $this->locales = explode(',', $this->option('locales'));

        $fields = $this->option('fields');
        $fieldsArray = explode(';', $fields);

        $this->formFields = array();

        if ($fields) {
            $x = 0;
            foreach ($fieldsArray as $item) {
                $itemArray = explode('#', $item);
                $this->formFields[$x]['name'] = trim($itemArray[0]);
                $this->formFields[$x]['type'] = trim($itemArray[1]);
                $this->formFields[$x]['required'] = (isset($itemArray[2]) && (trim($itemArray[2]) == 'req' || trim($itemArray[2]) == 'required')) ? true : false;

                $x++;
            }
        }

        foreach ($this->locales as $locale) {
            $locale = trim($locale);
            $path = config('view.paths')[0] . '/../lang/' . $locale . '/';

            //create directory for locale
            if (!File::isDirectory($path)) {
                File::makeDirectory($path, 0755, true);
            }

            $langFile = $this->viewDirectoryPath . 'lang.stub';
            $newLangFile = $path . $this->crudName . '.php';
            if (!File::copy($langFile, $newLangFile)) {
                echo "failed to copy $langFile...\n";
            } else {
                $this->templateVars($newLangFile);
            }

            $this->info('Lang [' . $locale . '] created successfully.');
        }
    }

    /**
     * Translate form's fields.
     *
     * @param  string $newLangFile
     *
     * @return void
     */
    private function templateVars($newLangFile)
    {
        $messages = [];
        foreach ($this->formFields as $field) {
            $index = $field['name'];
            $text = ucwords(strtolower(str_replace('_', ' ', $index)));
            $messages[] = "'$index' => '$text'";
        }

        File::put($newLangFile, str_replace('%%messages%%', implode(",\n", $messages), File::get($newLangFile)));
    }    
}