⏫ Forwardport of #11425 to 2.3-develop branch

Applied pull request patch https://github.com/magento/magento2/pull/11425.patch (created by @denisristic) based on commit(s):
  1. 720496c
  2. 0e4dd85
  3. ce12a74

setup/src/Magento/Setup/Console/Command/InstallCommand.php

@@ -13,6 +13,9 @@
 use Magento\Framework\Setup\ConsoleLogger;
 use Symfony\Component\Console\Input\InputOption;
 use Magento\Setup\Model\ConfigModel;
+use Symfony\Component\Console\Question\Question;
+use Symfony\Component\Console\Question\ChoiceQuestion;
+use Symfony\Component\Console\Helper\QuestionHelper;
 
 /**
  * Command to install Magento application
@@ -35,6 +38,16 @@ class InstallCommand extends AbstractSetupCommand
      */
     const INPUT_KEY_USE_SAMPLE_DATA = 'use-sample-data';
 
+    /**
+     * Parameter indicating command for interactive setup
+     */
+    const INPUT_KEY_INTERACTIVE_SETUP = 'interactive';
+
+    /**
+     * Parameter indicating command shortcut for interactive setup
+     */
+    const INPUT_KEY_INTERACTIVE_SETUP_SHORTCUT = 'i';
+
     /**
      * Regex for sales_order_increment_prefix validation.
      */
@@ -109,7 +122,13 @@ protected function configure()
                 null,
                 InputOption::VALUE_NONE,
                 'Use sample data'
-            )
+            ),
+            new InputOption(
+                self::INPUT_KEY_INTERACTIVE_SETUP,
+                self::INPUT_KEY_INTERACTIVE_SETUP_SHORTCUT,
+                InputOption::VALUE_NONE,
+                'Interactive Magento instalation'
+            ),
         ]);
         $this->setName('setup:install')
             ->setDescription('Installs the Magento application')
@@ -139,12 +158,25 @@ protected function initialize(InputInterface $input, OutputInterface $output)
     {
         $inputOptions = $input->getOptions();
 
-        $configOptionsToValidate = [];
-        foreach ($this->configModel->getAvailableOptions() as $option) {
-            if (array_key_exists($option->getName(), $inputOptions)) {
-                $configOptionsToValidate[$option->getName()] = $inputOptions[$option->getName()];
+        if ($inputOptions['interactive']) {
+            $configOptionsToValidate = $this->interactiveQuestions($input, $output);
+        } else {
+            $configOptionsToValidate = [];
+            foreach ($this->configModel->getAvailableOptions() as $option) {
+                if (array_key_exists($option->getName(), $inputOptions)) {
+                    $configOptionsToValidate[$option->getName()] = $inputOptions[$option->getName()];
+                }
+            }
+        }
+
+        if ($inputOptions['interactive']) {
+            $command = '';
+            foreach ($configOptionsToValidate as $key => $value) {
+                $command .= " --{$key}={$value}";
             }
+            $output->writeln("<comment>Try re-running command: php bin/magento setup:install{$command}</comment>");
         }
+
         $errors = $this->configModel->validate($configOptionsToValidate);
         $errors = array_merge($errors, $this->adminUser->validate($input));
         $errors = array_merge($errors, $this->validate($input));
@@ -177,4 +209,133 @@ public function validate(InputInterface $input)
         }
         return $errors;
     }
+
+    /**
+     * Runs interactive questions
+     *
+     * It will ask users for interactive questionst regarding setup configuration.
+     *
+     * @param InputInterface $input
+     * @param OutputInterface $output
+     * @return string[] Array of inputs
+     */
+    private function interactiveQuestions(InputInterface $input, OutputInterface $output)
+    {
+        $helper = $this->getHelper('question');
+        $configOptionsToValidate = [];
+
+        foreach ($this->configModel->getAvailableOptions() as $option) {
+            $configOptionsToValidate[$option->getName()] = $this->askQuestion(
+                $input,
+                $output,
+                $helper,
+                $option,
+                true
+            );
+        }
+
+        $output->writeln("");
+
+        foreach ($this->userConfig->getOptionsList() as $option) {
+            $configOptionsToValidate[$option->getName()] = $this->askQuestion(
+                $input,
+                $output,
+                $helper,
+                $option
+            );
+        }
+
+        $output->writeln("");
+
+        foreach ($this->adminUser->getOptionsList() as $option) {
+            $configOptionsToValidate[$option->getName()] = $this->askQuestion(
+                $input,
+                $output,
+                $helper,
+                $option
+            );
+        }
+
+        $output->writeln("");
+
+        $returnConfigOptionsToValidate = [];
+        foreach ($configOptionsToValidate as $key => $value) {
+            if ($value != '') {
+                $returnConfigOptionsToValidate[$key] = $value;
+            }
+        }
+
+        return $returnConfigOptionsToValidate;
+    }
+
+    /**
+     * Runs interactive questions
+     *
+     * It will ask users for interactive questionst regarding setup configuration.
+     *
+     * @param InputInterface $input
+     * @param OutputInterface $output
+     * @param QuestionHelper $helper
+     * @param TextConfigOption|FlagConfigOption\SelectConfigOption $option
+     * @param Boolean $validateInline
+     * @return string[] Array of inputs
+     */
+    private function askQuestion(
+        InputInterface $input,
+        OutputInterface $output,
+        QuestionHelper $helper,
+        $option,
+        $validateInline = false
+    ) {
+        if ($option instanceof \Magento\Framework\Setup\Option\SelectConfigOption) {
+            if ($option->isValueRequired()) {
+                $question = new ChoiceQuestion(
+                    $option->getDescription() . '? ',
+                    $option->getSelectOptions(),
+                    $option->getDefault()
+                );
+            } else {
+                $question = new ChoiceQuestion(
+                    $option->getDescription() . ' [optional]? ',
+                    $option->getSelectOptions(),
+                    $option->getDefault()
+                );
+            }
+        } else {
+            if ($option->isValueRequired()) {
+                $question = new Question(
+                    $option->getDescription() . '? ',
+                    $option->getDefault()
+                );
+            } else {
+                $question = new Question(
+                    $option->getDescription() . ' [optional]? ',
+                    $option->getDefault()
+                );
+            }
+        }
+
+        $question->setValidator(function ($answer) use ($option, $validateInline) {
+
+            if ($option instanceof \Magento\Framework\Setup\Option\SelectConfigOption) {
+                $answer = $option->getSelectOptions()[$answer];
+            }
+
+            if ($answer == null) {
+                $answer = '';
+            } else {
+                $answer = trim($answer);
+            }
+
+            if ($validateInline) {
+                $option->validate($answer);
+            }
+
+            return $answer;
+        });
+
+        $value = $helper->ask($input, $output, $question);
+
+        return $value;
+    }
 }