Don't work for PHPCS, make PHPCS work for you

Presented on June 9th 2017 at PHP Southcoast, Portsmouth, United Kingdom.
https://2017.phpsouthcoast.co.uk/
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Congratulations! Your team has chosen a coding standard to use and you're well on your way to a consistent code style for all your projects. But... there are some extra things you'd like to check for, some rules you really can't be bothered with and some which sort of fit your needs, but not completely. Now what?

Come and learn how to make the PHP Codesniffer work for you and how to streamline the PHPCS related work-flow along the way.

Links:
* Code: https://github.com/jrfnl/make-phpcs-work-for-you
* Docs: https://github.com/squizlabs/PHP_Codesniffer/wiki
https://github.com/squizlabs/PHP_CodeSniffer/wiki/Customisable-Sniff-Properties
* Step-by-step strategy: https://github.com/xwp/wp-dev-lib#limiting-scope-of-checks
* Feedback: https://joind.in/21480

Transcript

1. Don't work for PHPCS Make PHPCS work for you
2. Hello! Juliette Reinders Folmer @jrf_nl @jrfnl
3. PHP CodeSniffer by
4. Justin Luebke
5. GlennForrest
6. cohdra
7. Static Analysis • Tokenizes • Per file • Light weight Dynamic Analysis • Parses • Across files
8. Code Style Documentation Code Smells Code Metrics Best Practices Code Compatibility
9. PHP (+ inc) JS CSS
10. Phar Composer Git clone PEAR Installation
11. PHPCS Build-in Standards PEAR PSR1 PSR2 Zend MySource PHPCS Squiz
12. Userland PHPCS Standards Laravel Symfony1 Symfony2 CodeIgniter Drupal Magento WordPress
14. Report Types diff code (3.x) svnblame gitblame emacs xml checkstyle source full summary info csv json junit
16. Jack Moreh
18. ruleset.xml phpcs.xml • Add new sniffs • Register path with PHPCS
19. Custom Ruleset Files Command line --standard=myphpcs.xml phpcs.xml phpcs.xml.dist
20. Standard Standard A Standard B Standard A Standard B Standard A Standard B
21. <?xml version="1.0"?> <ruleset name="MyProject"> <rule ref="PSR1" /> </ruleset> Standard
22. <?xml version="1.0"?> <ruleset name="MyProject"> <rule ref="PSR1" /> <rule ref="PSR2" /> </ruleset> Standard A Standard B
23. Standard A Standard B <?xml version="1.0"?> <ruleset name="MyProject"> <rule ref="PSR1" /> <rule ref="PSR2" /> </ruleset>
24. Standard.Subset.Sniff.ErrorCode Standard.Subset.Sniff.ErrorCode Standard.Subset.Sniff.ErrorCode Standard.Subset.Sniff.ErrorCode
25. Standard.Subset.Sniff.ErrorCode Include: <rule ref="…" /> Exclude: <exclude name="…" /> ~~~~~~~~
26. <?xml version="1.0"?> <ruleset name="MyProject"> <rule ref="PSR1" /> <rule ref="PSR2"> <exclude name="Generic.Files.LineEndings" /> </rule> <config name="testVersion" value="5.1-99.0"/> <rule ref="PHPCompatibility"> <exclude name="PHPCompatibility.PHP. DeprecatedIniDirectives.safe_modeRemoved"> </rule> </ruleset> Standard A Standard B
27. <?xml version="1.0"?> <ruleset name="MyProject"> <exclude-pattern>*/vendor/*</exclude-pattern> <rule ref="PSR1" /> <rule ref="PSR2"> <exclude name="Generic.Files.LineEndings" /> </rule> <config name="testVersion" value="5.1-99.0"/> <rule ref="PHPCompatibility"> <exclude name="PHPCompatibility.PHP. DeprecatedIniDirectives.safe_modeRemoved"> </rule> <rule ref="PHPCompatibility.PHP.Deprecated IniDirectives.magic_quotes_runtimeRemoved"> <exclude-pattern>*/MyFile.php</exclude-pattern> </rule> <rule ref="Generic.Metrics.NestingLevelSniff" /> <rule ref="PEAR.Commenting" /> </ruleset> Standard A Standard B
28. <?xml version="1.0"?> <ruleset name="MyProject"> <arg value="ps"/> <arg name="report" value="summary"/> <arg name="extensions" value="php,inc,js,css,lib/php"/> <ini name="memory_limit" value="128M" /> </ruleset> phpcs . -p –s -report=summary -extensions= php,inc,js,css,lib/php -d memory_limit=128M
29. Explain
30. Customizing Messages <?xml version="1.0"?> <ruleset name="MyProject"> <rule ref="Generic.Commenting.Todo.CommentFound"> <message>Please review this TODO comment: %s</message> <severity>8</severity> <type>error</type> </rule> </ruleset>
31. Customizing Sniffs <?xml version="1.0"?> <ruleset name="MyProject"> <rule ref="Generic.Files.LineLength"> <properties> <property name="lineLimit" value="90"/> <property name="absoluteLineLimit" value="100"/> </properties> </rule> </ruleset>
32. Customizing Sniffs <?xml version="1.0"?> <ruleset name="MyProject"> <rule ref="Generic.PHP.ForbiddenFunctions"> <properties> <property name="forbiddenFunctions" type="array" value="delete=>unset,print=>echo, create_function=>null" /> </properties> </rule> </ruleset>
33. fui
34. Strategy for Existing Codebases XWP: wp-dev-lib
35. --filter=gitmodified
36. Fixing errors phpcbf /path/to/code –-standard=phpcs.xml phpcbf /path/to/code –-standard=phpcs.xml --suffix=.fixed phpcs /path/to/code –-standard=phpcs.xml –-report=diff -vv
37. PHPCS vs PHPCBF phpcs-only="true" vs phpcbf-only="true"
38. Handling Rule Exceptions // @codingStandardsIgnoreLine <code line to be ignored> // @codingStandardsIgnoreStart ... <code> ... // @codingStandardsIgnoreEnd // @codingStandardsIgnoreFile
39. Marnhe du Plooy
40. Running PHPCS via Travis before_install: - export PHPCS_DIR=/tmp/phpcs - git clone -b master --depth 1 https://github.com/squizlabs/PHP_CodeSniffer.git $PHPCS_DIR script: - $PHPCS_DIR/bin/phpcs . –-standard=phpcs.xml
41. Only run PHPCS once per build.
42. Running PHPCS Selectively matrix: include: ... - php: '5.6' env: SNIFF=1 before_install: ... - if [[ "$SNIFF" == "1" ]]; then git clone -b master --depth 1 https://github.com/squizlabs/PHP_CodeSniffer.git $PHPCS_DIR; fi script: - if [[ "$SNIFF" == "1" ]]; then $PHPCS_DIR/bin/phpcs; fi
43. Kaboompics
44. Review Your Ruleset Jack Moreh
45. PHPCS 3.0
46. JR P
47. Thanks! Slides: https://speakerdeck.com/jrf Code: https://github.com/jrfnl/ make-phpcs-work-for-you Docs: https://github.com/squizlabs/ PHP_Codesniffer/wiki Feedback: https://joind.in/21480
48. unknown Questions ? Want to get started ? Join me tomorrow in the Hands on Space @ 11 am.