Adding updater for specific BLT delta migrations.

.travis.yml

@@ -90,6 +90,8 @@ script:
   - drupal yaml:update:value project.yml project.local.hostname '127.0.0.1:8888'
   # BLT added new dependencies for us, so we must update.
   - composer update
+  # Execute all updates with fake "dev" => "dev" version specs. This must be done manually since BLT was not installed prior to this.
+  - blt-console blt:update dev dev $(pwd) --yes
   # Create a .travis.yml, just to make sure it works. It won't be executed.
   - blt ci:travis:init
   - blt ci:pipelines:init

bin/blt-console

@@ -3,6 +3,7 @@
 
 use Acquia\Blt\Console\Command\ComposerMungeCommand;
 use Acquia\Blt\Console\Command\YamlMungeCommand;
+use Acquia\Blt\Console\Command\UpdateCommand;
 use Symfony\Bridge\Twig\Command\LintCommand;
 use Symfony\Component\Console\Application;
 
@@ -26,4 +27,6 @@ $application = new Application();
 $application->add(new ComposerMungeCommand());
 $application->add(new YamlMungeCommand());
 $application->add(new \Acquia\Blt\Console\Command\TwigLintCommand);
+$application->add(new UpdateCommand());
+
 $application->run();

composer.json

@@ -25,7 +25,9 @@
         "squizlabs/php_codesniffer":        "^2.7",
         "symfony/yaml":                     "^2.8.11",
         "symfony/console":                  "^2.8.11",
-        "symfony/twig-bridge":              "^2.8.11"
+        "symfony/twig-bridge":              "^2.8.11",
+        "doctrine/common":                  "^2.5",
+        "vierbergenlars/php-semver":        "^3.0"
     },
     "autoload": {
         "psr-4": {