(Added) Add PHPStan for Static Analysis

MarjovanLier commented 4 months ago

User description

Summary

This Merge Request (MR) introduces PHPStan, a static analysis tool, to the project. PHPStan is a powerful tool that helps identify potential bugs, coding style issues, and other code quality problems during development. The integration of PHPStan aims to improve overall code quality and maintainability by catching problems early in the development lifecycle.

Context and Background

The need for static analysis was identified during code reviews and discussions with the team. By incorporating PHPStan, we can benefit from automated code analysis and adhering to best practices, ultimately leading to a more robust and reliable codebase.

Problem Description

While our existing testing suite provides good coverage, it primarily focuses on functional testing. Static analysis tools like PHPStan can complement our testing efforts by analyzing the codebase for potential issues that traditional testing methods may miss, such as type errors, unused code, and coding style violations.

Solution Description

The solution involves the following steps:

PHPStan Installation: PHPStan and its PHPUnit extension have been added as development dependencies in the composer.json file.
Configuration: A new phpstan.neon configuration file has been introduced to customize PHPStan's behaviour, including the analysis level, PHP version, and paths to be analyzed.
Workflow Integration: The GitHub Actions workflow (php.yml) has been updated to include a new step that runs PHPStan after the successful execution of the Infection tests.
Local Testing: The localTest.sh script has been modified to install PHPStan and its PHPUnit extension during the local testing setup.
Code Refactoring: The calculateRank method in the Trace class has been refactored for better readability and type safety. An unnecessary Psalm annotation has also been removed from the rankByMetric method.

List of Changes

Added:
- phpstan.neon: Configuration file for PHPStan.
- composer.json: PHPStan and its PHPUnit extension as development dependencies, along with a new test:phpstan script.
Changed:
- .github/workflows/php.yml: Added a new step to run PHPStan analysis after Infection tests.
- localTest.sh: Updated to install PHPStan and its PHPUnit extension during local testing setup.
- src/Trace.php: Refactored the calculateRank method and removed an unnecessary Psalm annotation from the rankByMetric method.

Type

enhancement, documentation

Description

Introduced PHPStan for static analysis, including its PHPUnit extension, to improve code quality.
Added phpstan.neon configuration file with detailed settings for PHPStan analysis.
Enabled PHPStan static analysis in the GitHub Actions workflow to run after Infection tests.
Updated localTest.sh script to install PHPStan packages for local testing.
Refactored calculateRank method in Trace.php for better readability and explicit typing, and removed unnecessary Psalm annotation.

Changes walkthrough

Relevant files

Enhancement

Trace.php

Refactor Trace.php for Better Readability and Typing

src/Trace.php

Removed unnecessary Psalm annotation from rankByMetric method.

Refactored calculateRank method for better readability and explicit
typing.

Improved formatting of the return arrays in calculateRank.

+21/-6

Configuration changes

localTest.sh `Update localTest.sh to Install PHPStan Packages` localTest.sh Updated the script to install `phpstan/phpstan` and `phpstan/phpstan-phpunit` instead of `rector/rector`.	+2/-1
php.yml `Enable PHPStan Static Analysis in GitHub Actions Workflow` .github/workflows/php.yml Uncommented the step to run PHPStan static analysis after Infection tests in the GitHub Actions workflow.	+5/-5
phpstan.neon `Introduce PHPStan Configuration File` phpstan.neon Introduced `phpstan.neon` configuration file with various PHPStan settings.	+11/-0

Dependencies

composer.json

Add PHPStan and Its PHPUnit Extension to Composer Dependencies

composer.json

Added phpstan/phpstan and phpstan/phpstan-phpunit as development
dependencies.

Added a new script test:phpstan for running PHPStan analysis.

+6/-1

✨ PR-Agent usage: Comment /help on the PR to get a list of all available PR-Agent tools and their descriptions

Summary by CodeRabbit

New Features
- Enhanced code quality by introducing PHPStan for static analysis.
Documentation
- Improved PHPDoc blocks in Trace.php for better clarity and static analysis compliance.
Chores
- Configured PHPStan static analysis with necessary dependencies.
Refactor
- Enhanced method signatures in Trace.php for improved type safety and readability.

coderabbitai[bot] commented 4 months ago

Walkthrough

## Walkthrough The project has focused on elevating code quality and maintainability by integrating PHPStan for static analysis. This involved updating the GitHub Actions workflow to include PHPStan checks, adding essential PHPStan dependencies to `composer.json`, adjusting the `localTest.sh` script to include these dependencies, and configuring PHPStan via a new `phpstan.neon` file. Furthermore, code quality enhancements were made in the `src/Trace.php` file, including PHPDoc block updates and the addition of type declarations for improved readability and quality. ## Changes | Files | Summary | |-----------------------------------------------|-------------------------------------------------------------------------------------------------------------------| | `.github/workflows/php.yml` | Uncommented and corrected PHPStan configuration for static analysis in the workflow. | | `composer.json`, `localTest.sh` | Added `phpstan/phpstan` and `phpstan/phpstan-phpunit` dependencies. `composer.json` now includes a PHPStan script. | | `phpstan.neon` | Configured PHPStan with maximum analysis level and specified paths for `src` and `tests`. | | `src/Trace.php` | Updated PHPDoc blocks, removed Psalm return type declaration, added type declarations for readability. |

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sweep-ai[bot] commented 4 months ago

Apply Sweep Rules to your PR?

[ ] Apply: All new business logic should have corresponding unit tests.
[ ] Apply: Refactor large functions to be more modular.
[ ] Apply: Add docstrings to all functions and file headers.

This is an automated message generated by Sweep AI.

codiumai-pr-agent-pro[bot] commented 4 months ago

PR Description updated to latest commit (https://github.com/MarjovanLier/XhprofTrace/commit/382d78430f71880610b71391509835fa8a059608)

[x] Copy walkthrough table to "Files Changed" Tab

codiumai-pr-agent-pro[bot] commented 4 months ago

Changelog updates:

2024-03-05

Added

Introduced PHPStan for static analysis to improve code quality and maintainability.
Added PHPStan and its PHPUnit extension as development dependencies.
Implemented PHPStan static analysis in the GitHub Actions workflow and local testing scripts.

Changed

Updated the calculateRank method in the Trace class for better type handling and readability.
Modified localTest.sh script to install PHPStan packages.

Fixed

Removed unnecessary Psalm annotation from the rankByMetric method.

to commit the new content to the CHANGELOG.md file, please type: '/update_changelog --pr_update_changelog.push_changelog_changes=true'

codiumai-pr-agent-pro[bot] commented 4 months ago

PR Code Suggestions

Category	Suggestions
Best practice	Use strict comparison for improved type safety. ___ Consider using strict comparison (`===`) instead of loose comparison (`==`) for type safety and to avoid potential bugs due to type coercion. [src/Trace.php [334]](https://github.com/MarjovanLier/XhprofTrace/pull/23/files#diff-15329b36f4764bd79867bdc947704d9b2afcb82fd7627bd305ae5865be6fb833R334-R334) ```diff -if ($previousMetricValue === null \|\| $item[$metric] == $previousMetricValue) { +if ($previousMetricValue === null \|\| $item[$metric] === $previousMetricValue) { ```
	Quote variables in shell scripts for safety. ___ It's recommended to quote variables in shell scripts to prevent globbing and word splitting. [localTest.sh [26]](https://github.com/MarjovanLier/XhprofTrace/pull/23/files#diff-ee3cef051df5421a0c1f313c0666b6c8c80b8ec26be919fdfe65992736b6091aR26-R26) ```diff -$DOCKER_CMD composer require --dev --with-all-dependencies "phpstan/phpstan":"^1.10" +"$DOCKER_CMD" composer require --dev --with-all-dependencies "phpstan/phpstan":"^1.10" ```
	Lock PHPStan versions for consistent analysis results. ___ Consider locking the versions of `phpstan/phpstan` and `phpstan/phpstan-phpunit` to specific minor versions instead of using the caret (^) version range to ensure consistent static analysis results across different environments. [composer.json [55-56]](https://github.com/MarjovanLier/XhprofTrace/pull/23/files#diff-d2ab9925cad7eac58e0ff4cc0d251a937ecf49e4b6bf57f8b95aab76648a9d34R55-R56) ```diff -"phpstan/phpstan": "^1.10", -"phpstan/phpstan-phpunit": "^1.3", +"phpstan/phpstan": "1.10.", +"phpstan/phpstan-phpunit": "1.3.", ```
Enhancement	Add error handling for the PHPStan workflow step. ___ Ensure that the workflow step for PHPStan includes error handling or a step to review the analysis results, to make the static analysis actionable. [.github/workflows/php.yml [109-112]](https://github.com/MarjovanLier/XhprofTrace/pull/23/files#diff-a73bb6555480a5ee79ae276a3f5d71a08fa316e09a4a8da7b643cf1e92c97df9R109-R112) ```diff - name: Run static analysis with PHPStan id: phpstan if: steps.infection.outcome == 'success' run: composer test:phpstan + continue-on-error: true ```
Enhancement	Enhance PHPStan analysis with generic type checks. ___ For a more comprehensive analysis, consider adding the `checkGenericClassInNonGenericObjectType: true` parameter to enforce generic type checks in PHPStan. [phpstan.neon [1-4]](https://github.com/MarjovanLier/XhprofTrace/pull/23/files#diff-0361f0c81f363476ddc6f44ab36fcbe66ee685d5f4c2a46b054924591544b766R1-R4) ```diff parameters: level: max phpVersion: 80100 checkMissingIterableValueType: true + checkGenericClassInNonGenericObjectType: true ```