Drupal 8 development environment

drupal8_dev_environment.md

Drupal 8 Development

Global notes about Drupal development

Development Environment Settings

Default settings file

Include local configuration file

/**
 * If there is a local settings file, then include it
 */
$local_settings = __DIR__ . "/settings.local.php";
if (file_exists($local_settings)) {
  include $local_settings;
}

Create a file local settings file

touch sites/default/settings.local.php

Settings for disable caches at settings.local.php file

/**
 * Enable php errors
 */
error_reporting(E_ALL);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);

/**
 * Link to local services
 */
$settings['container_yamls'][] = __DIR__ . '/local.services.yml';

/**
 * Set error level
 */
$settings['error_level'] = 2;

/**
 * Show all level errors
 */
$config['system.logging']['error_level'] = 'verbose';

/**
 * Disable CSS/JS aggreation
 */
$config['system.performance']['css']['preprocess'] = FALSE;
$config['system.performance']['js']['preprocess'] = FALSE;

/**
 * Disable the render cache and the dynamic page cache
 */
$settings['cache']['bins']['render'] = 'cache.backend.null';
$settings['cache']['bins']['dynamic_page_cache'] = 'cache.backend.null';

/**
 * Allow test modules and themes to be installed if needed
 */
$settings['extension_discovery_scan_tests'] = TRUE;

Create Local settings file

touch sites/default/local.services.yml

Settings to debug twig at local.services.yml

# Required to disable cache
services:
  cache.backend.null:
    class: Drupal\Core\Cache\NullBackendFactory
# Enable Twig debugging
parameters:
  twig.config:
      # Twig debugging:
      #
      # When debugging is enabled:
      # - The markup of each Twig template is surrounded by HTML comments that
      #   contain theming information, such as template file name suggestions.
      # - Note that this debugging markup will cause automated tests that directly
      #   check rendered HTML to fail. When running automated tests, 'debug'
      #   should be set to FALSE.
      # - The dump() function can be used in Twig templates to output information
      #   about template variables.
      # - Twig templates are automatically recompiled whenever the source code
      #   changes (see auto_reload below).
      #
      # For more information about debugging Twig templates, see
      # https://www.drupal.org/node/1906392.
      #
      # Not recommended in production environments
      # @default false
    debug: true
      # Twig auto-reload:
      #
      # Automatically recompile Twig templates whenever the source code changes.
      # If you don't provide a value for auto_reload, it will be determined
      # based on the value of debug.
      #
      # Not recommended in production environments
      # @default null
    auto_reload: true
      # Twig cache:
      #
      # By default, Twig templates will be compiled and stored in the filesystem
      # to increase performance. Disabling the Twig cache will recompile the
      # templates from source each time they are used. In most cases the
      # auto_reload setting above should be enabled rather than disabling the
      # Twig cache.
      #
      # Not recommended in production environments
      # @default true
    cache: false

Proxy files form staging

# Download Module
drush pm-download stage_file_proxy
# Enable
drush pm-enable --yes stage_file_proxy
# Set file origin point to stage server
drush variable-set stage_file_proxy_origin "http://www.example.com"