Merge pull request Sylius#9488 from pamil/1.2-upgrade

Describe upgrade process for 1.1.x -> 1.2.0

UPGRADE-1.2.md

@@ -1,5 +1,7 @@
 # UPGRADE FROM `v1.1.X` TO `v1.2.0`
 
+## Codebase
+
 * __BC BREAK:__ `Sylius\Bundle\UserBundle\Controller\UserController`'s method `addFlash` has been renamed to
   `addTranslatedFlash` with added scalar typehints for compatibility with both Symfony 3.4 and Symfony 4.0.
 
@@ -12,3 +14,54 @@
 * liip/imagine-bundle has been upgraded to ^2.0, which contains BCs from previous ^1.9.1 version. Please read their upgrade guide https://github.com/liip/LiipImagineBundle/blob/2.0/UPGRADE.md.
 
 * Class `Sylius\Component\Core\Resolver\DefaultShippingMethodResolver` has been deprecated and will be removed in 2.0. `Sylius\Component\Core\Resolver\EligibleDefaultShippingMethodResolver` should be used instead.
+
+## Application
+
+[*See all the changes in `Sylius/Sylius-Standard` here*](https://github.com/Sylius/Sylius-Standard/pull/236/files)
+
+* Open `app/config/routing.yml` and replace
+
+  ```yaml
+  _liip_imagine:
+      resource: "@LiipImagineBundle/Resources/config/routing.xml"
+  ```
+
+  with 
+
+  ```yaml
+  _liip_imagine:
+      resource: "@LiipImagineBundle/Resources/config/routing.yaml"
+  ```  
+
+* Open `app/config/config.yml` and add the following lines at the end of file:
+
+  ```yaml
+  liip_imagine:
+      resolvers:
+          default:
+              web_path:
+                  web_root: "%kernel.project_dir%/web"
+                  cache_prefix: "media/cache"
+  ```
+
+* Copy file `.babelrc` from Sylius-Standard v1.2.x ([see source here](https://github.com/Sylius/Sylius-Standard/blob/1.2/.babelrc))
+
+* Copy file `.eslintrc.js` from Sylius-Standard v1.2.x ([see source here](https://github.com/Sylius/Sylius-Standard/blob/1.2/.eslintrc.js))
+
+* Copy file `gulpfile.babel.js` from Sylius-Standard v1.2.x ([see source here](https://github.com/Sylius/Sylius-Standard/blob/1.2/gulpfile.babel.js))
+
+* Remove file `Gulpfile.js` (and move your customisations to `gulpfile.babel.js`)
+
+* Synchronise `package.json` with v1.2.0 ([see diff here](https://github.com/Sylius/Sylius-Standard/pull/236/files#diff-b9cfc7f2cdf78a7f4b91a753d10865a2))
+
+* Synchronise `composer.json` with v1.2.0 ([see diff here](https://github.com/Sylius/Sylius-Standard/pull/236/files#diff-b5d0ee8c97c7abd7e3fa29b9a27d1780))
+
+* Run `composer update` and `yarn upgrade`
+
+* Copy file `vendor/sylius/sylius/app/migrations/Version20180226142349.php` to `app/migrations/`
+
+* Clear cache by `bin/console cache:clear`
+
+* Run database migrations by `bin/console doctrine:migrations:migrate` 
+
+* Install assets by `bin/console assets:install web` and `yarn run gulp`