How to ensure the quality of Magento2 code: Use magento/magento-coding-standard

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Ensuring code quality is a crucial part when developing Magento 2 extensions. Magento 2 projects usually involve complex logic and a lot of custom code, which can easily lead to errors and maintenance difficulties without strict code standards. Fortunately, the magento/magento-coding-standard library provides us with a set of dedicated PHP CodeSniffer rules that can help us quickly check and optimize code quality.

Install

Using magento/magento-coding-standard in a Magento 2 project is very simple, you just need to execute the following command in the project root directory:

 <code class="language-bash">composer require --dev magento/magento-coding-standard</code>

Due to security considerations, the Magento standard needs to be added manually to phpcs after installation. You can add the following script to the composer.json file to automatically complete this step:

 <code class="language-json">"scripts": { "post-install-cmd": [ "([ $COMPOSER_DEV_MODE -eq 0 ] || vendor/bin/phpcs --config-set installed_paths ../../magento/magento-coding-standard/)" ], "post-update-cmd": [ "([ $COMPOSER_DEV_MODE -eq 0 ] || vendor/bin/phpcs --config-set installed_paths ../../magento/magento-coding-standard/)" ] }</code>

use

After the installation is complete, you can analyze your code through the following command:

 <code class="language-bash">vendor/bin/phpcs --standard=Magento2 app/code/MyAwesomeExtension</code>

If you find some problems that can be automatically fixed, you can also use the phpcbf command:

 <code class="language-bash">vendor/bin/phpcbf --standard=Magento2 app/code/MyAwesomeExtension</code>

Verify installation

You can verify that magento/magento-coding-standard is installed correctly by:

 <code class="language-bash">vendor/bin/phpcs -i</code>

This command returns a list of installed encoding standards, which should include Magento2.

contribute

If you are interested in magento/magento-coding-standard and want to contribute, you can start from the following aspects:

• Improve documentation for existing rules.
• Fix known bugs and improve existing rules.
• Create a new PHP CodeSniffer rule.
• Participate in the discussion of the new rules.

Specific contribution steps can be found in the community contribution model.

test

All rules should have unit test coverage. You can run the test with the following command:

 <code class="language-bash">vendor/bin/phpunit</code>

In addition, you can also use the following command to ensure that the sniffer code itself complies with the Magento Coding Standard:

 <code class="language-bash">vendor/bin/phpcs --standard=Magento2 Magento2/ --extensions=php</code>

Advantages and practical application effects

The benefits of using magento/magento-coding-standard are obvious. It not only helps us quickly discover and fix problems in our code, but also ensures that our code complies with Magento standards, thereby improving the readability and maintainability of our code. In practical applications, I found that this tool not only improves the code quality, but also reduces the probability of errors occurring during development, greatly improving development efficiency.

In short, magento/magento-coding-standard is a very practical tool that is indispensable for any Magento 2 developer. With this tool, we can more easily ensure code quality, thereby improving the stability and performance of the entire project.

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