Printing error output when runserver fails.

src/Robo/Commands/Blt/DoctorCommand.php

@@ -74,7 +74,7 @@ protected function executeDoctorInsideVm() {
       $this->logger->error("The value of drupal_core_path in $drupal_vm_config_filepath contains an unresolved Ansible variable.");
       $this->logger->error("Do not use Ansible variable placeholders for drupal_core_path.");
       $this->logger->error("drupal_core_path is currently $drupal_vm_config_filepath. Please correct it.");
-      throw new \Exception("Unparsable value in $drupal_vm_config_filepath.");
+      throw new BltException("Unparsable value in $drupal_vm_config_filepath.");
     }
 
     $this->say("Drupal VM was detected. Running blt doctor inside of VM...");

src/Robo/Commands/Deploy/DeployCommand.php

@@ -148,7 +148,7 @@ protected function getTagName($options) {
 
     if (empty($tag_name)) {
       // @todo Validate tag name is valid. E.g., no spaces or special characters.
-      throw new \Exception("You must enter a valid tag name.");
+      throw new BltException("You must enter a valid tag name.");
     }
     else {
       $tag_name = $options['tag'];
@@ -245,7 +245,7 @@ protected function addGitRemotes() {
     // Add remotes and fetch upstream refs.
     $git_remotes = $this->getConfigValue('git.remotes');
     if (empty($git_remotes)) {
-      throw new \Exception("git.remotes is empty. Please define at least one value for git.remotes in blt/project.yml.");
+      throw new BltException("git.remotes is empty. Please define at least one value for git.remotes in blt/project.yml.");
     }
     foreach ($git_remotes as $remote_url) {
       $this->addGitRemote($remote_url);

src/Robo/Commands/Tests/BehatCommand.php

@@ -79,6 +79,7 @@ public function initialize() {
    * @interactConfigureBehat
    * @validateMySqlAvailable
    * @validateDrupalIsInstalled
+   * @validateSettingsFilesPresent
    * @validateBehatIsConfigured
    * @validateInsideVm
    * @launchWebServer
@@ -167,6 +168,7 @@ protected function launchSelenium() {
       ->get('executor')
       ->execute($this->getConfigValue('composer.bin') . "/selenium-server-standalone -port {$this->seleniumPort} -log {$this->seleniumLogFile}  > /dev/null 2>&1")
       ->background(TRUE)
+      // @todo Print output when this command fails.
       ->printOutput(TRUE)
       ->dir($this->getConfigValue('repo.root'))
       ->run();

src/Robo/Commands/Vm/VmCommand.php

@@ -242,7 +242,7 @@ protected function requireDrupalVm() {
       }
       else {
         // @todo revert previous file chanages.
-        throw new \Exception("Unable to install Drupal VM.");
+        throw new BltException("Unable to install Drupal VM.");
       }
     }
 
@@ -259,7 +259,7 @@ protected function checkRequirements() {
       $this->logger->error("Vagrant is not installed.");
       $this->say("Please install all dependencies for Drupal VM by following the Quickstart Guide:");
       $this->say("https://github.com/geerlingguy/drupal-vm#quick-start-guide");
-      throw new \Exception("Drupal VM requirements are missing.");
+      throw new BltException("Drupal VM requirements are missing.");
     }
     else {
       $this->installVagrantPlugin('vagrant-hostsupdater');

src/Robo/Common/Executor.php

@@ -3,6 +3,7 @@
 namespace Acquia\Blt\Robo\Common;
 
 use Acquia\Blt\Robo\Config\ConfigAwareTrait;
+use Acquia\Blt\Robo\Exceptions\BltException;
 use GuzzleHttp\Client;
 use Psr\Log\LoggerAwareInterface;
 use Psr\Log\LoggerAwareTrait;
@@ -189,7 +190,7 @@ public function wait(callable $callable, array $args, $message = '') {
       usleep($checkEvery * 1000);
     }
 
-    throw new \Exception("Timed out");
+    throw new BltException("Timed out.");
   }
 
   /**

src/Robo/Config/DefaultConfig.php

@@ -44,7 +44,7 @@ protected function getRepoRoot() {
       }
     }
 
-    throw new \Exception('Could not find repository root directory!');
+    throw new BltException('Could not find repository root directory!');
   }
 
   /**
@@ -66,7 +66,7 @@ protected function getBltRoot() {
       }
     }
 
-    throw new \Exception('Could not find the Drupal docroot directory');
+    throw new BltException('Could not find the Drupal docroot directory');
   }
 
   /**

src/Robo/Datastore/FileStore.php

@@ -116,7 +116,7 @@ protected function getFileName($key, $writable = FALSE) {
     }
 
     if (!$key) {
-      throw new \Exception('Could not save data to a file because it is missing an ID');
+      throw new BltException('Could not save data to a file because it is missing an ID');
     }
     return $this->directory . '/' . $key;
   }
@@ -142,13 +142,13 @@ protected function ensureDirectoryWritable() {
     // Reality check to prevent stomping on the local filesystem if there is
     // something wrong with the config.
     if (!$this->directory) {
-      throw new \Exception('Could not save data to a file because the path setting is mis-configured.');
+      throw new BltException('Could not save data to a file because the path setting is mis-configured.');
     }
 
     $writable = is_dir($this->directory) || (!file_exists($this->directory) && @mkdir($this->directory, 0777, TRUE));
     $writable = $writable && is_writable($this->directory);
     if (!$writable) {
-      throw new \Exception(
+      throw new BltException(
         'Could not save data to a file because the path {path} cannot be written to.',
         ['path' => $this->directory]
       );

src/Robo/Hooks/ValidateHook.php

@@ -4,6 +4,7 @@
 
 use Acquia\Blt\Robo\Common\IO;
 use Acquia\Blt\Robo\Config\ConfigAwareTrait;
+use Acquia\Blt\Robo\Exceptions\BltException;
 use Acquia\Blt\Robo\Inspector\InspectorAwareInterface;
 use Acquia\Blt\Robo\Inspector\InspectorAwareTrait;
 use Consolidation\AnnotatedCommand\CommandData;
@@ -38,7 +39,7 @@ class ValidateHook implements ConfigAwareInterface, LoggerAwareInterface, Inspec
    */
   public function validateDocrootIsPresent(CommandData $commandData) {
     if (!$this->getInspector()->isDocrootPresent()) {
-      throw new \Exception("Unable to find Drupal docroot.");
+      throw new BltException("Unable to find Drupal docroot.");
     }
   }
 
@@ -49,7 +50,7 @@ public function validateDocrootIsPresent(CommandData $commandData) {
    */
   public function validateRepoRootIsPresent(CommandData $commandData) {
     if (empty($this->getInspector()->isRepoRootPresent())) {
-      throw new \Exception("Unable to find repository root.");
+      throw new BltException("Unable to find repository root.");
     }
   }
 
@@ -63,7 +64,7 @@ public function validateDrupalIsInstalled(CommandData $commandData) {
       ->isDrupalInstalled()
     ) {
 
-      throw new \Exception("Drupal is not installed");
+      throw new BltException("Drupal is not installed");
     }
   }
 
@@ -73,14 +74,12 @@ public function validateDrupalIsInstalled(CommandData $commandData) {
    * @hook validate @validateSettingsFileIsValid
    */
   public function validateSettingsFileIsValid(CommandData $commandData) {
-    if (!$this->getInspector()
-      ->isDrupalSettingsFilePresent()
-    ) {
-      throw new \Exception("Could not find settings.php for this site.");
+    if (!$this->getInspector()->isDrupalSettingsFilePresent()) {
+      throw new BltException("Could not find settings.php for this site.");
     }
 
     if (!$this->getInspector()->isDrupalSettingsFileValid()) {
-      throw new \Exception("BLT settings are not included in settings file.");
+      throw new BltException("BLT settings are not included in settings file.");
     }
   }
 
@@ -91,7 +90,7 @@ public function validateSettingsFileIsValid(CommandData $commandData) {
    */
   public function validateBehatIsConfigured(CommandData $commandData) {
     if (!$this->getInspector()->isBehatConfigured()) {
-      throw new \Exception("Behat is not configured properly. Please run `blt doctor` to diagnose the issue.");
+      throw new BltException("Behat is not configured properly. Please run `blt doctor` to diagnose the issue.");
     }
   }
 
@@ -103,8 +102,23 @@ public function validateBehatIsConfigured(CommandData $commandData) {
   public function validateMySqlAvailable() {
     if (!$this->getInspector()->isMySqlAvailable()) {
       // @todo Prompt to fix.
-      throw new \Exception("MySql is not available. Please run `blt doctor` to diagnose the issue.");
+      throw new BltException("MySql is not available. Please run `blt doctor` to diagnose the issue.");
+    }
+  }
+
+  /**
+   * Validates that required settings files exist.
+   *
+   * @hook validate @validateSettingsFilesPresent
+   */
+  public function validateSettingsFilesPresent() {
+    if (!$this->getInspector()->isHashSaltPresent()) {
+      throw new BltException("salt.txt is not present. Please run `blt setup:settings` to generate it.");
+    }
+    if (!$this->getInspector()->isDrupalLocalSettingsFilePresent()) {
+      throw new BltException("Could not find settings.php for this site.");
     }
+    // @todo Look for local.drushrc.php.
   }
 
   /**
@@ -114,7 +128,7 @@ public function validateMySqlAvailable() {
    */
   public function validateInsideVm() {
     if ($this->getInspector()->isDrupalVmLocallyInitialized() && !$this->getInspector()->isVmCli()) {
-      throw new \Exception("You must run this command inside Drupal VM, or else do not use Drupal VM at all. Execute `vagrant ssh` and then execute the command, or else change drush.aliases.local in blt/project.local.yml.");
+      throw new BltException("You must run this command inside Drupal VM, or else do not use Drupal VM at all. Execute `vagrant ssh` and then execute the command, or else change drush.aliases.local in blt/project.local.yml.");
     }
   }
 

src/Robo/Hooks/WebServerHook.php

@@ -4,13 +4,15 @@
 
 use Acquia\Blt\Robo\Common\IO;
 use Acquia\Blt\Robo\Config\ConfigAwareTrait;
+use Acquia\Blt\Robo\Exceptions\BltException;
 use Acquia\Blt\Robo\Inspector\InspectorAwareInterface;
 use Acquia\Blt\Robo\Inspector\InspectorAwareTrait;
 use League\Container\ContainerAwareInterface;
 use League\Container\ContainerAwareTrait;
 use Psr\Log\LoggerAwareInterface;
 use Psr\Log\LoggerAwareTrait;
 use Robo\Contract\ConfigAwareInterface;
+use Symfony\Component\Filesystem\Filesystem;
 
 /**
  *
@@ -35,8 +37,28 @@ public function launchWebServer() {
       $this->killWebServer();
       $this->say("Launching PHP's internal web server via drush.");
       $this->logger->info("Running server at $this->serverUrl...");
-      $this->getContainer()->get('executor')->drush("runserver $this->serverUrl > /dev/null")->background(TRUE)->run();
-      $this->getContainer()->get('executor')->waitForUrlAvailable($this->serverUrl);
+
+      $fs = new Filesystem();
+      $fs->mkdir([$this->getConfigValue('repo.root') . '/tmp']);
+      $log_file = $this->getConfigValue('repo.root') . '/tmp/runserver.log';
+
+      /** @var \Acquia\Blt\Robo\Common\Executor $executor */
+      $executor = $this->getContainer()->get('executor');
+      $result = $executor
+        ->drush("runserver $this->serverUrl")
+        ->background(TRUE)
+        ->run();
+
+      try {
+        $executor->waitForUrlAvailable($this->serverUrl);
+      }
+      catch (\Exception $e) {
+        if (!$result->wasSuccessful() && file_exists($log_file)) {
+          $output = file_get_contents($log_file);
+          unlink($log_file);
+          throw new BltException($output);
+        }
+      }
     }
   }
 

src/Robo/Inspector/Inspector.php

@@ -14,6 +14,7 @@
 use Robo\Contract\BuilderAwareInterface;
 use Robo\Contract\ConfigAwareInterface;
 use Symfony\Component\Filesystem\Filesystem;
+use Robo\Contract\VerbosityThresholdInterface;
 
 /**
  * Class Inspector.
@@ -47,7 +48,7 @@ class Inspector implements BuilderAwareInterface, ConfigAwareInterface, LoggerAw
   /**
    * @var array
    */
-  protected $drupalVmStatus = [];
+  protected $drupalVmStatus = NULL;
 
   /**
    * @var \Symfony\Component\Filesystem\Filesystem
@@ -138,6 +139,16 @@ public function isDrupalSettingsFilePresent() {
     return file_exists($this->getConfigValue('drupal.settings_file'));
   }
 
+  /**
+   * Determines if salt.txt file exists.
+   *
+   * @return bool
+   *   TRUE if file exists.
+   */
+  public function isHashSaltPresent() {
+    return file_exists($this->getConfigValue('repo.root') . '/salt.txt');
+  }
+
   /**
    * Determines if Drupal local.settings.php file exists.
    *
@@ -267,7 +278,7 @@ public function isDrupalVmLocallyInitialized() {
     $status = $this->getDrupalVmStatus();
     $machine_name = $this->getConfigValue('project.machine_name');
     $initialized = !empty($status[$machine_name])
-      && file_exists($this->getConfigValue('repo.root') . '/box/config.yml');
+      && file_exists($this->getConfgValue('repo.root') . '/box/config.yml');
     $statement = $initialized ? "is" : "is not";
     $this->logger->debug("Drupal VM $statement initialized.");
 
@@ -536,7 +547,7 @@ public function isSimpleSamlPhpInstalled() {
    *   An array of status data.
    */
   protected function getDrupalVmStatus() {
-    if (empty($this->drupalVmStatus)) {
+    if (is_null($this->drupalVmStatus)) {
       $this->setDrupalVmStatus();
     }
     return $this->drupalVmStatus;
@@ -547,12 +558,13 @@ protected function getDrupalVmStatus() {
    */
   protected function setDrupalVmStatus() {
     $result = $this->executor->execute("vagrant status --machine-readable")
-      ->printOutput(FALSE)
-      ->printMetadata(FALSE)
       ->interactive(FALSE)
+      ->printMetadata(TRUE)
+      ->setVerbosityThreshold(VerbosityThresholdInterface::VERBOSITY_VERY_VERBOSE)
       ->run();
     $output = $result->getMessage();
     if (!$result->wasSuccessful() || !$output) {
+      $this->drupalVmStatus = [];
       return FALSE;
     }
     $lines = explode("\n", $output);

src/Robo/Wizards/SetupWizard.php

@@ -15,9 +15,17 @@ class SetupWizard extends Wizard {
    * Executes blt setup:settings command.
    */
   public function wizardGenerateSettingsFiles() {
+    $missing = FALSE;
     if (!$this->getInspector()->isDrupalLocalSettingsFilePresent()) {
       $this->logger->warning("<comment>{$this->getConfigValue('drupal.local_settings_file')}</comment> is missing.");
-      $confirm = $this->confirm("Do you want to generate this required settings file?");
+      $missing = TRUE;
+    }
+    elseif (!$this->getInspector()->isHashSaltPresent()) {
+      $this->logger->warning("<comment>salt.txt</comment> is missing.");
+      $missing = TRUE;
+    }
+    if ($missing) {
+      $confirm = $this->confirm("Do you want to generate this required settings file(s)?");
       if ($confirm) {
         $bin = $this->getConfigValue('composer.bin');
         $this->executor