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Managing Code Quality and Code Consistency

Managing Code Quality and Code Consistency

Presented on December 13 2021 for for final year Composer Science students at De Montfort University, Leicester, UK.
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Juliette Reinders Folmer

December 13, 2021
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  1. Pull request Merged ... typo in documentation ... ... whitespace

    ... ... please add some tests ... ... is situation x handled ... ... use early return ... ... using PHP 8.0 syntax ... ... use strict checking in your tests ...
  2. Psalm CS- Fixer PHP Stan PHP CS Exakat PHP CPD

    PHP Insights PHP MD Phan Rector PHP DCD Static Analysis Tools PHP MND
  3. Running PHP_CodeSniffer phpcs /path/to/code –-standard=StandardName -p (show progress) -s (show

    source/errorcodes) -l (local, do not recurse into subdirs) -n (no warnings) -vvv (verbosity) -i (show installed standards) -h (help, shows lots more options)
  4. Which Standard Will Be Used ? Command line .phpcs.xml phpcs.xml

    .phpcs.xml.dist phpcs.xml.dist --standard=Standard --standard=myrules.xml
  5. <?xml version="1.0"?> <ruleset name="MyProject"> <file>.</file> <exclude-pattern>*/vendor/*</exclude-pattern> <rule ref="Stnd"/> <rule ref="Stnd.Category"/>

    <rule ref="Stnd.Category.SniffName"/> <rule ref="Stnd.Category.SniffName.ErrorCode"/> <rule ref="Stnd"/> <exclude name="Stnd.Category.SniffName"/> </rule> <rule ref="Stnd.Category.SniffName"/> <exclude-pattern>*/tests/*</exclude-pattern> </rule> </ruleset> Standard A Standard B
  6. Customizing Sniffs <?xml version="1.0"?> <ruleset name="MyProject"> <rule ref="Stnd.Category.SniffName"> <properties> <property

    name="propertyA" value="true"/> <property name="propertyB" value="100"/> <property name="propertyC" type="array"> <element key="key1" value="value1"/> <element key="key2" value="value2"/> </property> </properties> </rule> </ruleset>
  7. <?xml version="1.0"?> <ruleset name="MyProject"> <file>.</file> <arg value="ps"/> <arg name="report" value="summary"/>

    <arg name="extensions" value="php,inc,js,css,lib/php"/> <ini name="memory_limit" value="128M" /> <arg name="parallel" value="8"/> </ruleset> phpcs . -p –s --report=summary --extensions= php,inc,js,css,lib/php -d memory_limit=128M --parallel=8 (PHPCS 3+)
  8. Functional Standards and Sniff Collections Object Calisthenics Variable Analysis Universal

    Slevomat Cognitive Complexity PHP Compatibility Import Detection Security Audit Normalized Arrays PHPCSExtra
  9. Registering External Standards [1] phpcs --config-set installed_paths /path/to/dir/above/standard phpcs --config-show

    phpcs --config-set installed_paths /path/to/dir/above/standard1,/path/to/dir/above/standard2
  10. Handling Rule Exceptions // phpcs:ignore Stnd.Cat.Sniff.ErrorCode <code line to be

    ignored> // phpcs:disable StndA,StndB.Cat.Sniff -- for reasons ... <code> ... // phpcs:enable // phpcs:ignoreFile
  11. Links ✓ PHP_CodeSniffer https://github.com/squizlabs/PHP_CodeSniffer ✓ Find External Standards on Packagist

    https://packagist.org/?query=phpcs&type=phpcodesniffer-standard https://packagist.org/?query=php_codesniffer&type=phpcodesniffer-standard ✓ DealerDirect Composer PHPCS plugin https://github.com/Dealerdirect/phpcodesniffer-composer-installer ✓ PHPCSDevTools, PHPCSUtils, PHPCSExtra, PHPCompatibility et al https://github.com/PHPCSStandards https://github.com/PHPCompatibility