Migrating to CMA & CSA
If you have already set up ScandiPWA with docker, you can upgrade to the new setup
Previously, ScandiPWA used a docker setup. This configuration is now considered legacy, and you can easily upgrade to the new create-scandipwa-app setup.
Before You Start
Before migrating, make sure that you have backed up the current state of the project, preferrably with a version control system such as Git. Verify that your system meets the requirements.
Creating the New Setup
In the new setup, the theme is developed in the localmodules directory. If it does not exist yet, create it in your project's source directory:
Now, using the new create-scandipwa-app script, you can re-create the theme (replace <your-app-name>):
Using Yarn (recommended):
Using npx (if you don't have yarn):
It will take a few minutes for the script to download the required packages and initialize the theme. When it completes, navigate to the newly-created theme:
Run the compilation process in magento mode:
You will need to keep this process running – it continuously re-builds the theme when changes are made. Open a new terminal tab to enter new commands.
Switching to the New Setup
Now the new theme is created, but we need to reconfigure the project to use it instead of the old theme. The changes we need are easiest to make from within the docker container, so start the app and gain bash access to it:
Removing the Old Setup
Previously, our theme was installed via the scandipwa/installer package, but we no longer require it. To clean up and avoid confusion, remove it:
Adding the New Setup
We will install the newly-created theme by taking advantage of Composer's ability to install from local repository sources. First, we add our theme as a local repository source. This will alter composer.json to add a new item in the repositories field:
Next, we install our theme by using require. This will resolve the package to the localmodules directory we configured above:
Making the Switch
Run the upgrade command and disable full-page caching:
It is now time to enable the new theme. In the Magento admin panel, navigate to Content > Design > Configuration. Edit the scope you want to change (typically the most general one in the list), and select the new theme. Finally, flush the cache:
The new theme should now be served on the frontend! For now, it will be the default ScandiPWA theme, because we haven't migrated the cusomized code yet.
Heads up!
The "hot-reload" feature only works in insecure HTTP mode of your Magento 2 server.
Migrating the Code
You can now copy the code from your old theme into the new setup. However, note that the file structure has changed to improve organization, and you will need to make adjustments:
Old Path
Changes
etc
registration.php
theme.xml
<any other Magento-specific file you have created>
Magento files now moved under a new magento directory for better organization. The new paths are magento/etc, magento/registration.php, etc.
src/public
Now moved outside src, the new path is public.
The file index.production.phtml is renamed to index.php, and index.development.html is renamed to index.html.
src/config
Removed. The webpack configuration now lives in the
@scandipwa/scandipwa-scripts package. To modify this configuration, use build configuration plugins.
src/app
Now the contents of app are moved to src, and app no longer exists. The new path is src. This was done to create a more shallow and easy to navigate file structure.
Once your code has been copied, you can delete the old location of your theme. Your app should now work as expected with the new setup!
Extension mechanism changes
The extensions are no longer Composer packages, but NPM packages. Thus, the frontend and backend (Magento 2) extension are now separated. Internal file structure is also different. Previously, the extensions had to be created under then scandipwa/app folder of the composer package, now, you can simply put your code into extension's src folder. Inside of this folder, the file-structure is unchanged.
You can read more about new extension registration sytax here, it replaces the legacy scandipwa.json file.
A tool for automated extension transformation from the old to the new format is available for use on GitHub.
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