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- Added a new `REVIEW_PROCESS.md` file outlining the guidelines for reviewing pull requests. - The document aims to standardize the review process, ensuring consistency and improving code quality. - It includes sections on preparation, general review, testing, security, performance, compliance, and more. new file: .github/REVIEW_PROCESS.md
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Review Process for Uptime Kuma
Note: This Review Process document is a work in progress. Updates and improvements are being made, so please check back regularly for the latest version.
Preparation for Reviewing a PR
Read the PR description carefully
Make sure you understand what the PR is trying to solve or implement. This could be a bug fix, a new feature, or a refactor.
Check the linked issues
If the PR has a linked issue, read it to better understand the context and the reason for the change.
Check the test coverage
Make sure relevant tests have been added or modified. If the PR adds new functionality, there should be tests covering the change.
General Review
Code formatting and style
Check if the code adheres to the agreed style guidelines of the project (e.g., PEP8 for Python, Airbnb style for JavaScript, etc.). Make sure there are no unused imports, variables, or code fragments in the PR.
Readability and maintainability
Is the code understandable to other developers? Ensure that complex parts are well-documented with comments. Are variables and functions clearly named, and does the code follow a consistent naming convention? Additionally, check if the code is maintainable:
- Is it unnecessarily complex? Could it be simplified?
- Does it follow the Single Responsibility Principle (SRP)?
Documentation
Is the PR well documented? Check if the descriptions of functions, parameters, and return values are present. Are there any changes needed to the README or other documentation, for example, if new features or configurations are introduced?
Functional Review
Testing
Ensure that the new code is properly tested. This includes unit tests, integration tests, and if necessary, end-to-end tests.
Test results
Did all tests pass in the CI pipeline (e.g., GitHub Actions, Travis, CircleCI)?
Testing in different environments
If the changes depend on certain environments or configurations, verify that the code has been tested in various environments (e.g., local development, staging, production).
Edge cases and regressions
- Are there test cases for possible edge cases?
- Could this change introduce regressions in other parts of the system?
Security
Security issues
Check for potential security problems, such as SQL injection, XSS attacks, or unsafe API calls. Are there passwords, tokens, or other sensitive data left in the code by mistake?
Authentication and authorization
Is access to sensitive data or functionality properly secured? Check that the correct authorization and authentication mechanisms are in place.
Security Best Practices
- Ensure that the code is free from common vulnerabilities like SQL injection, XSS attacks, and insecure API calls.
- Check for proper encryption of sensitive data, and ensure that passwords or API tokens are not hardcoded in the code.
Performance
Performance impact
Check if the changes negatively impact performance. This can include factors like load times, memory usage, or other performance aspects.
Use of external libraries
- Have the right libraries been chosen?
- Are there unnecessary dependencies that might reduce performance or increase code complexity?
- Are these dependencies actively maintained and free of known vulnerabilities?
Performance Best Practices
- Measure performance using tools like Lighthouse or profiling libraries.
- Avoid unnecessary dependencies that may bloat the codebase.
- Ensure that the code does not degrade the user experience (e.g., by increasing load times or memory consumption).
Compliance and Integration
Alignment with the project
Are the changes consistent with the project goals and requirements? Ensure the PR aligns with the architecture and design principles of the project.
Integration
If the PR depends on other PRs or changes, verify that they integrate well with the rest of the project. Ensure the code does not cause conflicts with other active PRs.
Backward compatibility
Does the change break compatibility with older versions of the software or dependencies? If so, is there a migration plan in place?
Logging and Error Handling
Proper error handling
- Are errors properly caught and handled instead of being silently ignored?
- Are exceptions used appropriately?
Logging
- Is sufficient logging included for debugging and monitoring?
- Is there excessive logging that could affect performance?
Accessibility (for UI-related changes)
If the PR affects the user interface, ensure that it meets accessibility standards:
- Can users navigate using only the keyboard?
- Are screen readers supported?
- Is there proper color contrast for readability?
- Are there WCAG (Web Content Accessibility Guidelines) compliance issues?
- Use tools like Axe or Lighthouse to evaluate accessibility.
Providing Feedback
Constructive feedback
Provide clear, constructive feedback on what is good and what can be improved. If improvements are needed, be specific about what should change.
Clarity and collaboration
Ensure your feedback is friendly and open, so the team member who submitted the PR feels supported and motivated to make improvements.
Go/No-Go Decision ━ For Maintainers only
Go
If the code has no issues and meets the project requirements, approve it (and possibly merge it).
No-Go
If there are significant issues, such as missing tests, security vulnerabilities, or performance problems, request the necessary changes before the PR can be approved. Some examples of significant issues include:
- Missing tests for new functionality.
- Identified security vulnerabilities.
- Code changes that break backward compatibility without a proper migration plan.
- Code that causes major performance regressions (e.g., high CPU/memory usage).
After the Review ━ For Maintainers only
Reordering and merging
Once the necessary changes have been made and the PR is approved, the code can
be merged into the main branch (e.g., main or master).
Testing after merging
Ensure that the build passes after merging the PR, and re-test the functionality in the production environment if necessary.
Follow-up ━ For Maintainers only
Communication with team members
If the PR has long-term technical or functional implications, communicate the changes to the team.
Monitoring
Continue monitoring the production environment for any unexpected issues that may arise after the code has been merged.
This process ensures that PRs are systematically and thoroughly reviewed, improving overall code quality.