Merge branch '3280672-use-variables-in' into '3.x'

3280672 : Use settings variables in template

See merge request project/twig_tweak!14

src/TwigTweakExtension.php

@@ -87,6 +87,7 @@ class TwigTweakExtension extends AbstractExtension {
       new TwigFunction('drupal_breakpoint', [self::class, 'drupalBreakpoint'], $all_options),
       // @phpcs:ignore Drupal.Arrays.Array.LongLineDeclaration
       new TwigFunction('drupal_contextual_links', [self::class, 'drupalContextualLinks']),
+      new TwigFunction('drupal_settings', [self::class, 'drupalSettings']),
     ];
 
     $this->moduleHandler->alter('twig_tweak_functions', $functions);
@@ -726,4 +727,21 @@ class TwigTweakExtension extends AbstractExtension {
     return $output;
   }
 
+  /**
+   * Retrieves data from settings.
+   *
+   * @param string $key
+   *   A string that maps to a key within the settings data.
+   *
+   * @return string
+   *   The settings string value or an error message.
+   */
+  public static function drupalSettings(string $key) {
+    if (Settings::get($key) && is_string(Settings::get($key))) {
+      return Settings::get($key);
+    } else {
+      return 'Settings value is not a string';
+    }
+  }
+
 }