Configuring your Local Drupal 8 Development Environment

  1. Drupal 8 Configuration Management
  2. Paragraphs Module
  3. Building Configuration Forms
  4. Drupal 8 Migration
  5. The New Block System in Drupal 8
  6. Services and Dependency Injection
  7. Cron Queuing in Drupal 8
  8. Drupal 8 Plugin System
  9. Attaching JS and CSS Assets in Drupal 8
  10. Configuring your Local Drupal 8 Development Environment
  11. Creating a Custom Content Entity Type
  12. Introduction to Drupal 8 Theming
  13. Logging in Drupal 8
  14. Dependency Injection / Service Container Example

I have struggled with properly optimizing my local environment in terms of enabling debugging and disabling cache for a while. There isn’t that many steps you need to cover in order to have a proper working development environment. After reviewing Day 10 I completed setting up my environment the correct way and have outlined this in the following sections.

Step 1 Enable settings.local.php

  • Copy and Rename /sites/settings.example.local.php -> /sites/default/settings.local.php
  • Uncomment the following lines in your settings.php file:
# if (file_exists(__DIR__ . '/settings.local.php')) {
#   include __DIR__ . '/settings.local.php';
# }

Step 2 Disable Cache Services

  • In your sites/default/settings.local.php file, uncomment the following:
# $settings['cache']['bins']['render'] = 'cache.backend.null';
  • Rebuild your site configuration by visiting yoursite.local/rebuild.php

Step 3 Disable Twig Cache and Enable Debugging

  • Add the following lines to your /sites/development-services.yml (Refer to /sites/default/default-services.yml for all options)
parameters:
twig.config:
debug: true
auto_reload: true
cache: false
  • Clear Cache and then verify Twig debugging has been enabled by refreshing your Drupal 8 homepage. Review your source code and you should see something similar to:
<!-- THEME DEBUG -->;
<!-- THEME HOOK: 'html' -->;
<!-- FILE NAME SUGGESTIONS:
* html--front.html.twig
* html--.html.twig
x html.html.twig
-->;

Twig debugging gives a lot of helpful information scattered throughout your source code in the form of comments.

Image Credits: Photo by Fotis Fotopoulos on Unsplash.

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