Enhance version comparison logic for Safety CLI check-updates command #605
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safety/cli.py (1)
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771-793: Improved version comparison logic and user feedback.The changes in this section significantly improve the version comparison logic and user feedback. Here's a breakdown of the improvements:
- The code now correctly compares versions using
packaging_version.parse(), which is more reliable than string comparison for semantic versioning.- It handles three scenarios: update available, downgrade available, and already on the latest version.
- Clear and actionable messages are provided for each scenario.
Consider extracting the version comparison logic and message generation into a separate function for better maintainability. For example:
def get_version_status(current_version, latest_version): if packaging_version.parse(latest_version) > packaging_version.parse(current_version): return "update", f"Update available: Safety version {latest_version}" elif packaging_version.parse(latest_version) < packaging_version.parse(current_version): return "downgrade", f"Latest stable version is {latest_version}. If you want to downgrade to this version, you can run: pip install safety=={latest_version}" else: return "latest", "You are already using the latest stable version of Safety." status, message = get_version_status(VERSION, latest_available_version) console.print(message) if status == "update": console.print(f"If Safety was installed from a requirements file, update Safety to version {latest_available_version} in that file.") console.print(f"Pip: To install the updated version of Safety directly via pip, run: pip install safety=={latest_available_version}")This refactoring would make the main function cleaner and easier to maintain.
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safety/cli.py (4)
17-17: Good addition of packaging library.The addition of
from packaging import version as packaging_versionis a good practice. This library provides reliable tools for working with version strings in Python.
780-788: Clear update instructions provided.The code provides clear instructions for updating Safety, both for requirements file installations and direct pip installations. This is helpful for users and improves the overall user experience.
789-791: Appropriate handling of downgrade scenario.The code now correctly handles the case where the user's current version is newer than the latest stable version. It provides information about downgrading if needed, which is a good practice for maintaining version consistency across different environments.
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1-814: Overall improvement in version checking functionality.The changes made to the
check_updatesfunction have significantly improved the version comparison logic and user feedback without negatively impacting other parts of the code. The modifications are well-contained and align with the PR objectives of enhancing the version comparison process.
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safety/cli.py (1)
772-772: Improved version comparison logic incheck_updatesfunctionThe implementation of version comparison using
packaging.version.parseis a significant improvement. It allows for accurate semantic versioning comparisons. The function now handles three scenarios:
- A newer version is available
- The current version is newer than the latest stable version
- The user is on the latest stable version
The error handling for
InvalidVersionis also a good addition for robustness.Consider adding a brief comment explaining the version comparison logic for better code readability. For example:
# Compare versions using semantic versioning rules if packaging_version.parse(latest_available_version) > packaging_version.parse(VERSION): # ... (rest of the code)Also applies to: 781-799
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safety/cli.py (2)
17-18: New imports added for version comparisonThe addition of
packagingandInvalidVersionimports is appropriate for handling version comparisons. This change aligns with the new functionality in thecheck_updatesfunction.
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772-799: Overall improvement in version comparison logicThe changes to the
check_updatesfunction significantly improve its functionality and robustness. By using thepackaginglibrary for version comparison, the function now correctly handles semantic versioning, which is crucial for accurate update checks. The addition of error handling for invalid version formats also enhances the reliability of the function.These improvements will provide users with more accurate and helpful information about available updates, including cases where they might be using a newer version than the latest stable release.
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Summary:
This PR improves the logic for comparing the current Safety CLI version with the latest available version during the check-updates command. Instead of just checking for the presence of a latest_available_version, we now ensure that the version comparison is accurate using the packaging library. This allows for better handling of upgrade and downgrade scenarios.
Key Changes:
Why these changes were made:
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