Config template: Add more Twig config options

config/config.yml.template

@@ -2,7 +2,7 @@
 # Basic
 #
 site_title: Pico                    # The title of your website
-base_url: ~                         # Pico will try to guess its base URL, if this fails, override it here
+base_url: ~                         # Pico will try to guess its base URL, if this fails, override it here;
                                     #     Example: http://example.com/pico/
 rewrite_url: ~                      # A boolean (true or false) indicating whether URL rewriting is forced
 timezone: UTC                       # Your PHP installation might require you to manually specify a timezone
@@ -11,19 +11,21 @@ timezone: UTC                       # Your PHP installation might require you to
 # Theme
 #
 theme: default                      # The name of your custom theme
-theme_url: ~                        # Pico will try to guess the URL to the themes dir of your installation
+theme_url: ~                        # Pico will try to guess the URL to the themes dir of your installation;
                                     #     If this fails, override it here. Example: http://example.com/pico/themes/
 theme_config:
     widescreen: false               # Default theme: Use more horicontal space (i.e. make the site container wider)
 twig_config:
-    cache: false                    # Enable Twig template caching by specifying a path to a writable directory
     autoescape: false               # Let Twig escape variables by default
-    debug: false                    # Enable Twig's debugging mode
+    strict_variables: false         # If set to true, Twig will bail out when unset variables are being used
+    debug: false                    # Enable Twig's debug mode
+    cache: false                    # Enable Twig template caching by specifying a path to a writable directory
+    auto_reload: ~                  # Recompile Twig templates whenever the source code changes
 
 ##
 # Content
 #
-date_format: %D %T                  # Pico's default date format
+date_format: %D %T                  # Pico's default date format;
                                     #     See http://php.net/manual/en/function.strftime.php for more info
 pages_order_by_meta: author         # Sort pages by meta value "author" (set "pages_order_by" to "meta")
 pages_order_by: alpha               # Change how Pico sorts pages ("alpha" for alphabetical order, "date", or "meta")
@@ -31,7 +33,7 @@ pages_order: asc                    # Sort pages in ascending ("asc") or descend
 content_dir: content/               # The path to Pico's content directory
 content_ext: .md                    # The file extension of your Markdown files
 content_config:
-    extra: true                     # Use the Parsedown Extra parser to support extended markup
+    extra: true                     # Use the Parsedown Extra parser to support extended markup;
                                     #     See https://michelf.ca/projects/php-markdown/extra/ for more info
     breaks: false                   # A boolean indicating whether breaks in the markup should be reflected in the
                                     #     parsed contents of the page

lib/Pico.php

@@ -943,7 +943,14 @@ class Pico
             $this->config['theme_url'] = $this->getBaseUrl() . rtrim($this->config['theme_url'], '/') . '/';
         }
 
-        $defaultTwigConfig = array('cache' => false, 'autoescape' => false, 'debug' => false);
+        $defaultTwigConfig = array(
+            'autoescape' => false,
+            'strict_variables' => false,
+            'debug' => null,
+            'cache' => false,
+            'auto_reload' => null
+        );
+
         if (!is_array($this->config['twig_config'])) {
             $this->config['twig_config'] = $defaultTwigConfig;
         } else {