README

This project contains a Code Sniffer Standard for Totara Learn.

Prerequisites

• PHP 7.4 or higher (including PHP 8.4 and 8.5)
• Composer (https://getcomposer.org/)

Please note that the minimum PHP requirement has changed. You can now only install and run Codesniffer on PHP 7.4 or higher.

You can still analyse versions of Totara compatible only to version 5.6, as long as you run Codesniffer on 7.4 or higher.

Installation

Via Composer

In your project, require this package by running:

composer require --dev totara/codesniffer

You may be prompted to allow the plugin dealerdirect/phpcodesniffer-composer-installer - if so answer yes. This will then install the package in the correct location.

Confirm the Totara standards are available by running ./vendor/bin/phpcs -i.

The installed coding standards are MySource, PEAR, PSR1, PSR2, PSR12, Squiz, Zend, PHPCompatibility, PHPCSUtils and Totara

Manual Installation

Clone this repository into a folder of your choice.

In the root of the project run:

# Install composer packages (--dev is only required for running phpunit)
# If needed, change "composer" to the composer executable on your machine.
composer install --no-dev

# Update the config path
vendor/bin/phpcs --config-set installed_paths src/Standards"

# Now check what standards PHPCS can use
# The new Totara coding standard is automatically set after composer install
vendor/bin/phpcs -i

# should output something like
The installed coding standards are PEAR, Zend, PSR2, MySource, Squiz, PSR1, PSR12, Totara and PHPCompatibility

Optionally you can add phpcs to your path:

# Add this to your ~/.bash_profile or ~/.profile
# (Replace /path/to/this/project/ with the actual one on your machine)
export PATH="$PATH:/path/to/this/project/vendor/bin"

# don't forget to either do
source ~/.bash_profile
# or 
source ~/.profile

# or start a new shell

Usage

Console

To run Code Sniffer using the Totara Standard on the console

vendor/bin/phpcs --standard=Totara [--extensions=php,js] [folder_or_file_to_check]

# Example:
vendor/bin/phpcs --standard=Totara --extensions=php /path/to/your/project/classes/[MyClassToCheck.php]

# or if you've added phpcs to your path
phpcs --standard=Totara --extensions=php classes/[MyClassToCheck.php]

As some Sniffs can also check JavaScript files you might want to limit the extensions to one of the two.

Default phpcs.xml file

If your project includes a phpcs.xml or phpcs.xml.dist file you can run Code Sniffer from within your project without specifying the standard or any other configuration set in that file.

/path/to/phpcs filesorfoldertocheck

See PHP Code Sniffer's Advanced Usage docs for more details.

PHPStorm

To set up PHPStorm to automatically check your files and highlight coding style violations directly in the code

1. Open "Preferences"
2. Go to "Languages & Framework" => "PHP" => "Quality Tools" => "Code Sniffer"
3. Make sure that in the Configuration the "PHP Code Snifffer path" points to the "vendor/bin/phpcs" file within this project
4. "Validate" the selection and click "Apply"
5. Go to "Editor" => "Inspections"
6. In the big tree of Inspections find "PHP" => "Quality Tools" => "PHP Code Sniffer Validation"
7. Activate the inspection
8. In the right panel under "Options" choose "Custom" as Standard and click on the "..." button next to it
9. Choose the ruleset.xml file from this project (src/Standards/Totara/ruleset.xml)
10. Click "OK"

That's it. Now all violations should be marked directly within your code view.

PHPCompatibility

The Totara standard does include the PHPCompatibility standard as well to check for problems on specific versions.

By default the PHPCompatibility rules will check only the PHP version you are running the phpcs command on. To choose a specific version to check either set the version on the console

# to run all the checks for PHP 8.4 and PHP 8.5
/path/to/phpcs --runtime-set testVersion 8.4-8.5 ...

or have a "testVersion" configuration option in your phpcs.xml file.

See PHPCompatibility for more details.

Development

Sniffs

In the xml file src/Standards/Totara/ruleset.xml you find all rules used for this Coding Standard. It is a mixture of Sniffs from other Standards and our own Sniffs.

If you create or modify Sniffs within this project make sure you stick to the PSR-2 Coding Standard (to match the style of the original Code Sniffer library) and PSR-4 autoloading.

Testing

If you create or modify Sniffs within this project make sure you create or update unit tests for it.

To run the unit tests:

# If you haven't done it before, run
composer install

# Then run all tests with:
vendor/bin/phpunit

Git Hook

There is also a pre-commit hook for git to run Code Sniffer on commit.

Check out the instructions on how to use it.