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WordPress Blueprints

Blueprints are JSON files used to create WordPress sites with specific settings, themes, plugins, content, and anything else that can be configured in WordPress. Here's what a Blueprint looks like:

{
  "plugins": [
    "akismet",
    "gutenberg"
  ],
  "themes": [
    "twentynineteen"
  ],
  "settings": {
    "blogname": "My Blog",
    "blogdescription": "Just another WordPress site",
    "permalink_structure": "/%postname%/"
  },
  "constants": {
    "WP_DEBUG": true,
    "WP_DEBUG_LOG": true
  },
  "steps": [
    {
      "step": "runPHP",
      "content": "<?php require 'wp-load.php'; update_user_meta(1, 'test', 'value');"
    }
  ]
}

See the original Getting started with Blueprints v1 page for more information.

Let's build Version 2 of Blueprints together!

Blueprints were initially built in TypeScript for WordPress Playground, However, they quickly proved useful for WordPress in general.

This repository explores a PHP-based version 2 of Blueprints that can be used in any environment, be it a browser, Node.js, wp-cli, or a native PHP application. The plan is to create a robust, useful tool that will eventually be merged into WordPress core.

Your feedback is not just welcome, but essential to the success of this project. Please:

  • Share your thoughts and ideas in the Blueprints v2 Specification issue – or any other issue that interests you
  • Start new discussions
  • Propose changes through comments and pull requests

Your input and code contributions will help shape the future of Blueprints in WordPress. in discussions.

Technical bits

Setting Up the Project Locally

To set up the WordPress/blueprints project locally, here's a few useful commands:

Install composer. Once you have it, install the required dependencies via

composer install

Run tests with

vendor/bin/phpunit --testdox

Run Blueprints in a variety of ways

using the PHP Blueprint builder:

 php examples/blueprint_compiling.php

using a string containg a Blueprint (in JSON):

 php examples/json_string_compiling.php

Regenerate models files from JSON schema with

composer global require jane-php/json-schema
php src/WordPress/Blueprints/bin/autogenerate_models.php

Building to .phar

The Blueprints library is distributed as a .phar library. To build the .phar file, install box:

composer global require humbug/box

And then run:

rm composer.lock
rm -rf vendor
COMPOSER=composer-web.json composer install --no-dev
rm -rf vendor/pimple/pimple/ext/
rm -rf vendor/symfony/*/*.md
rm -rf vendor/symfony/*/composer.json
rm -rf vendor/symfony/*/*.dist
rm -rf vendor/*/*/LICENSE
box compile

Note that in box.json, the "check-requirements" option is set to false. Somehow, keeping it as true results in a .phar file that breaks HTTP requests in Playground. @TODO: Investigate why this is the case.

To try the built .phar file, run:

rm -rf new-wp/* && USE_PHAR=1 php blueprint_compiling.php

Coding Standards

This project uses the WordPress Coding Standards and PHPCS to enforce them. To check the code for compliance, run:

composer run-script phpcs

To automatically fix the code to comply with the standards, run:

composer run-script phpcbf
composer run-script phpcs-fix

PHP 7.0 Compatibility

This project is compatible with PHP >= 7.0.

Part of the process is automated with rector, which transpiles the features added in PHP 7.2 and later to PHP 7.1. Unfortunately, that's as far as Rector goes.

From there, manual transformations are required to bring the compatibility further down to PHP 7.0.

Automated part

To transpile the code to PHP 7.1, run:

# Install rector:
composer require rector/rector --ignore-platform-req=php

# Transpile:
php vendor/bin/rector process src

Unfortunately, Rector does not support downgrading to PHP 7.0 yet, so we need to do the last stretch manually.

Manual part

Rector will downgrade PHP code to PHP 7.1 but not further. We need PHP 7.0 compat so here's a few additional regexps to run. Regexps are not, of course, reliable in the general case, but they seem to do the trick here.

List of manual replacements

  • : \?[a-zA-Z_0-9]+ -> (empty string) to remove the unsupported return type from function(): ?SchemaResolver {} -> function() {}.
  • : iterable to fix Fatal error: Generators may only declare a return type of Generator, Iterator or Traversable.
  • \?[a-zA-Z_0-9]+ \$ -> $ to remove the unsupported nullable type from function signatures, e.g. function(?Schema $schema){} -> function($schema){}.
  • (protected|public|private) const -> const as const visibility is not supported in PHP 7.0.
  • : void -> `` as void return type is unsupported in PHP 7.0.

@TODO:

  • [$ns, $name] = $this->parseName($name); -> list($ns, $name) = $this->parseName($name);
  • foreach ($data as [$cp, $chars]) { -> foreach ($data as list($cp, $chars)) {
  • Find or write Rector rules for downgrading to PHP 7.0

License

WordPress Blueprints are open-source software licensed under the GPL.

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