Feat: Semantic Version Conflict Resolver #154 #350
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**/*.py: Follow PEP 8 style guide
Type hints required in Python code
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cortex/resolver.py (1)
61-69: Critical: Overly simplistic constraint handling doesn't fulfill PR objectives.The target version derivation (line 63) uses basic string manipulation that only strips
>=and^prefixes. This approach has several critical flaws:
- Incomplete prefix handling: Doesn't handle
~,==,!=,<,>, or version ranges like>=1.0.0,<2.0.0- No actual constraint solving: Doesn't find versions that satisfy both constraints or check compatibility
- No breaking change detection: Claims "no breaking changes detected" (line 68) without analyzing version differences
- Fragile string manipulation:
str(spec_a)may not return the original input string in the expected formatThe PR objectives explicitly require: compatibility checking, constraint solving, and breaking change detection using the
semantic_versionlibrary's APIs.🔎 Recommended approach using semantic_version properly
- # Strategy 1: Smart Upgrade (Dynamic Analysis) - # We assume pkg_b needs to catch up to pkg_a - target_ver = str(spec_a).replace('>=', '').replace('^', '') + # Strategy 1: Smart Upgrade + # Find a version that satisfies pkg_a's constraint + # Note: In production, you'd query actual available versions + # For now, we extract the minimum version from spec_a + try: + # Get minimum version from spec_a (this is a simplification) + # In a real implementation, query package registry for available versions + # and filter by spec_a.filter(available_versions) + min_version = spec_a.specs[0][1] if spec_a.specs else "unknown" + target_ver = str(min_version) + + # Detect breaking changes by comparing major versions + if hasattr(spec_b, 'specs') and spec_b.specs: + spec_b_version = spec_b.specs[0][1] + has_breaking_changes = spec_b_version.major < min_version.major + risk_level = "Medium (breaking changes detected)" if has_breaking_changes else "Low (no breaking changes detected)" + else: + risk_level = "Low (no breaking changes detected)" + except (IndexError, AttributeError): + target_ver = "latest compatible" + risk_level = "Low (no breaking changes detected)" + strategies.append({ "id": 1, "type": "Recommended", "action": f"Update {pkg_b['name']} to {target_ver} (compatible with {dep})", - "risk": "Low (no breaking changes detected)" + "risk": risk_level })Note: This is still simplified. A complete implementation would query a package registry for available versions and use
spec.filter()to find compatible versions.
🧹 Nitpick comments (4)
tests/test_resolver.py (1)
9-19: Verify the second strategy is also tested.The test only asserts the first strategy's type and action. To ensure both resolution strategies work correctly, add assertions for the second strategy (type "Alternative", action mentioning downgrade).
🔎 Proposed enhancement to test both strategies
def test_basic_conflict_resolution(self): conflict = { "dependency": "lib-x", "package_a": {"name": "pkg-a", "requires": "^2.0.0"}, "package_b": {"name": "pkg-b", "requires": "~1.9.0"} } strategies = self.resolver.resolve(conflict) self.assertEqual(len(strategies), 2) self.assertEqual(strategies[0]['type'], "Recommended") self.assertIn("Update pkg-b", strategies[0]['action']) + self.assertEqual(strategies[1]['type'], "Alternative") + self.assertIn("downgrade pkg-a", strategies[1]['action'])cortex/resolver.py (3)
45-57: Parsed spec_b is discarded - consider whether this is intentional.Line 49 parses
pkg_b['requires']but assigns it to_, meaning the parsed spec is immediately discarded. While this validates parseability, the spec isn't used for any compatibility analysis. If you only need validation, consider adding a comment explaining this. If you plan to use it for constraint solving, assign it tospec_binstead.🔎 Options to clarify intent
Option 1: Add comment if validation-only is intentional
try: spec_a = semantic_version.SimpleSpec(pkg_a['requires']) - # Validation check only - _ = semantic_version.SimpleSpec(pkg_b['requires']) + # Validation check only - ensure pkg_b constraint is parseable + # TODO: Use parsed spec_b for compatibility analysis + _ = semantic_version.SimpleSpec(pkg_b['requires'])Option 2: Store spec_b for future constraint solving
try: spec_a = semantic_version.SimpleSpec(pkg_a['requires']) - # Validation check only - _ = semantic_version.SimpleSpec(pkg_b['requires']) + spec_b = semantic_version.SimpleSpec(pkg_b['requires'])
71-77: Strategy lacks specific version guidance.The Conservative Downgrade strategy provides only a generic "downgrade" suggestion without specifying target versions. Consider deriving a specific target version from
spec_bsimilar to the upgrade strategy, or clarify that manual intervention is needed.🔎 Enhancement to provide version guidance
# Strategy 2: Conservative Downgrade + # Extract target version from pkg_b's constraint + try: + if hasattr(spec_b, 'specs') and spec_b.specs: + downgrade_target = str(spec_b.specs[0][1]) + action_text = f"Downgrade {pkg_a['name']} to be compatible with {pkg_b['name']} at {downgrade_target}" + else: + action_text = f"Keep {pkg_b['name']}, downgrade {pkg_a['name']} to compatible version" + except (IndexError, AttributeError): + action_text = f"Keep {pkg_b['name']}, downgrade {pkg_a['name']}" + strategies.append({ "id": 2, "type": "Alternative", - "action": f"Keep {pkg_b['name']}, downgrade {pkg_a['name']}", + "action": action_text, "risk": f"Medium (potential feature loss in {pkg_a['name']})" })
82-96: Demo code is fine but consider adding execution guard.The
__main__block provides a useful demo. The comment correctly notes that unit tests are separate. However, if this module is imported during test discovery, the demo runs. Consider adding a more explicit execution guard or moving the demo to a separate script.🔎 Optional guard to prevent execution during imports
if __name__ == "__main__": - # Simple CLI demo (Unit tests are in tests/test_resolver.py) + # Simple CLI demo - only runs when executed directly + # Unit tests are in tests/test_resolver.py CONFLICT = {Alternatively, move this demo to a separate
examples/demo_resolver.pyfile.
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**/*.py: Follow PEP 8 style guide
Type hints required in Python code
Docstrings required for all public APIs
Files:
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📚 Learning: 2025-12-11T12:03:24.071Z
Learnt from: CR
Repo: cortexlinux/cortex PR: 0
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Timestamp: 2025-12-11T12:03:24.071Z
Learning: Applies to **/*.py : Type hints required in Python code
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📚 Learning: 2025-12-11T12:03:24.071Z
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Repo: cortexlinux/cortex PR: 0
File: AGENTS.md:0-0
Timestamp: 2025-12-11T12:03:24.071Z
Learning: Applies to tests/**/*.py : Maintain >80% test coverage for pull requests
Applied to files:
cortex/resolver.py
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🔇 Additional comments (3)
cortex/resolver.py (3)
1-7: LGTM - Imports and type hints properly added.The module now correctly imports
semantic_versionand typing constructs. This addresses previous review feedback about missing type hints and imports.
10-23: LGTM - Enhanced docstring with usage example.The class docstring now includes a helpful usage example demonstrating semantic version constraints, addressing previous feedback.
36-39: LGTM - Input validation properly implemented.The validation correctly checks for required keys and raises
KeyErrorwith a descriptive message, addressing previous feedback about missing input validation.
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cortex/resolver.py (1)
67-91: Good error handling and strategy structure.The error handling correctly catches
ValueErrorfrom version parsing and returns a well-structured error strategy. Both resolution strategies follow a consistent format withid,type,action, andriskfields. The f-string formatting is correct throughout.The alternative "Conservative Downgrade" strategy could be enhanced by calculating and suggesting a specific compatible version for package_a, similar to how the recommended strategy provides a target version for package_b. However, this is a nice-to-have improvement rather than a requirement.
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**/*.py
📄 CodeRabbit inference engine (AGENTS.md)
**/*.py: Follow PEP 8 style guide
Type hints required in Python code
Docstrings required for all public APIs
Files:
cortex/resolver.py
🧠 Learnings (2)
📚 Learning: 2025-12-11T12:03:24.071Z
Learnt from: CR
Repo: cortexlinux/cortex PR: 0
File: AGENTS.md:0-0
Timestamp: 2025-12-11T12:03:24.071Z
Learning: Applies to **/*.py : Type hints required in Python code
Applied to files:
cortex/resolver.py
📚 Learning: 2025-12-11T12:03:24.071Z
Learnt from: CR
Repo: cortexlinux/cortex PR: 0
File: AGENTS.md:0-0
Timestamp: 2025-12-11T12:03:24.071Z
Learning: Applies to tests/**/*.py : Maintain >80% test coverage for pull requests
Applied to files:
cortex/resolver.py
🔇 Additional comments (5)
cortex/resolver.py (5)
1-8: Module structure and imports look good.The module docstring is clear and concise. The imports are appropriate, with
semantic_versionnow actively used for version parsing (line 57-58) and type hints properly imported as required by the coding guidelines.
10-23: LGTM!The class docstring is well-written and includes a helpful usage example demonstrating semantic version constraints. The stateless design is appropriate for a resolver utility.
25-37: LGTM!The method signature includes proper type hints as required by the coding guidelines, and the docstring is comprehensive with Args, Returns, and Raises sections following PEP 257 conventions.
53-60: Use semantic_version.SimpleSpec to parse constraints instead of stripping operators.The current approach using
lstrip('^~>=<')has several problems:
Semantic loss: Operators like
^,~,>=have different meanings in semantic versioning, but they're all stripped, losing the constraint information. For example,^2.0.0(compatible with 2.x) and~2.0.0(compatible with 2.0.x) both become2.0.0.Incorrect string operation:
lstrip()removes ALL occurrences of the specified characters from the left, not just prefixes. For example,>=<^2.0.0would become2.0.0, masking malformed input.No constraint solving: The PR objectives require checking compatibility between constraints and solving constraint sets, but the current implementation ignores the constraint semantics entirely.
The
semantic_versionlibrary providesSimpleSpec(orNpmSpecfor npm-style caret/tilde) to properly parse and work with version constraints.🔎 Recommended approach using SimpleSpec
- # Strategy 1: Smart Upgrade try: - # 1. strip operators like ^, ~, >= to get raw version string - raw_a = pkg_a['requires'].lstrip('^~>=<') - raw_b = pkg_b['requires'].lstrip('^~>=<') - - # 2. coerce into proper Version objects - ver_a = semantic_version.Version.coerce(raw_a) - ver_b = semantic_version.Version.coerce(raw_b) - - target_ver = str(ver_a) + # Parse constraint specifications + spec_a = semantic_version.NpmSpec(pkg_a['requires']) + spec_b = semantic_version.NpmSpec(pkg_b['requires']) + + # Find a version that satisfies both constraints + # For now, extract the base version from spec_a as a candidate + candidate_versions = [semantic_version.Version(v) for v in ['1.9.0', '2.0.0', '2.0.1', '2.1.0']] + compatible_versions = [v for v in candidate_versions if v in spec_a and v in spec_b] + + if compatible_versions: + target_ver = str(compatible_versions[-1]) # Use highest compatible version + risk_level = "Low (no breaking changes detected)" + else: + # No compatible version found, suggest upgrade to satisfy spec_a + target_ver = str(spec_a.clause.target) + risk_level = "Medium (breaking changes detected)"Note: For a full implementation, you'd want to query available versions from a package registry rather than using a hardcoded list.
Likely an incorrect or invalid review comment.
94-108: Expand test coverage to meet the >80% requirement.The test file exists but currently covers only basic functionality. To achieve >80% coverage, tests must verify:
- Risk level calculation when major versions differ (currently untested)
- Conservative Downgrade strategy (Strategy 2) - currently only Strategy 1 is verified
- Multiple semver operator formats (^, ~, >=, >, <, exact versions)
- Edge cases: empty package data, None values, invalid package structure
- Version comparison logic with various version combinations
Currently, only 3 test cases exist covering the happy path and two basic error scenarios. Additional test cases are needed for comprehensive coverage.
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I am currently working on this issue and will update this thread as I progress. - effiti |
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✅ Actions performedInitiated docstring generation; will generate only if new commits exist. |
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Note Docstrings generation - SUCCESS |
Docstrings generation was requested by @Kesavaraja67. * #350 (comment) The following files were modified: * `cortex/resolver.py` * `tests/test_resolver.py`
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🧹 Nitpick comments (6)
tests/test_resolver.py (6)
4-7: Add class and method docstrings per PEP 8.The test class and
setUpmethod are missing docstrings. Per coding guidelines, docstrings should be provided for clarity.🔎 Suggested docstrings
class TestDependencyResolver(unittest.TestCase): + """Test suite for DependencyResolver conflict resolution logic.""" + def setUp(self): + """Initialize DependencyResolver instance for each test.""" self.resolver = DependencyResolver()Based on coding guidelines requiring docstrings for all public APIs.
8-18: Add docstring per PEP 8.This test method is missing a docstring explaining its purpose.
🔎 Suggested docstring
def test_basic_conflict_resolution(self): + """Test basic version conflict resolution with major version difference.""" conflict = {Based on coding guidelines requiring docstrings.
20-35: Consider strengthening assertions to verify valid resolution strategies.The test verifies that strategies are returned but doesn't check whether they represent successful resolutions or error strategies. For instance,
">=1.0.0,<2.0.0"might not parse correctly with the resolver'slstripapproach, potentially returning an error strategy that would still pass this test.🔎 Suggested enhancement
for case in test_cases: conflict = { "dependency": "lib-y", "package_a": {"name": "pkg-a", "requires": case["req_a"]}, "package_b": {"name": "pkg-b", "requires": case["req_b"]} } strategies = self.resolver.resolve(conflict) self.assertIsInstance(strategies, list) self.assertGreater(len(strategies), 0) + # Verify successful resolution (not an error strategy) + self.assertNotEqual(strategies[0]['type'], "Error", + f"Failed to resolve {case}")
51-54: Add docstring per PEP 8.This test method is missing a docstring.
🔎 Suggested docstring
def test_missing_keys_raises_error(self): + """Test that KeyError is raised when required top-level keys are missing.""" bad_data = {"package_a": {}}Based on coding guidelines requiring docstrings.
56-64: Add docstring per PEP 8.This test method is missing a docstring.
🔎 Suggested docstring
def test_invalid_semver_handles_gracefully(self): + """Test that invalid semver strings return an error resolution strategy.""" conflict = {Based on coding guidelines requiring docstrings.
4-67: Coverage requirement met; consider optional edge cases.The test suite has been significantly expanded and now achieves the required >80% coverage. The tests effectively cover validation, parsing, error handling, field integrity, and multiple constraint formats.
For completeness, consider adding these optional edge cases mentioned in the previous review:
- Empty string versions
- Missing
'name'or'requires'keys within package dictionaries- Pre-release versions (e.g.,
"1.0.0-alpha")These would further harden the test suite but are not required given the coverage threshold is already met.
🔎 Example optional edge case tests
def test_missing_requires_key_in_package(self): """Test handling of package dict missing 'requires' key.""" conflict = { "dependency": "lib-x", "package_a": {"name": "pkg-a"}, # Missing 'requires' "package_b": {"name": "pkg-b", "requires": "1.0.0"} } with self.assertRaises(KeyError): self.resolver.resolve(conflict) def test_prerelease_version(self): """Test handling of pre-release semantic versions.""" conflict = { "dependency": "lib-x", "package_a": {"name": "pkg-a", "requires": "2.0.0-alpha"}, "package_b": {"name": "pkg-b", "requires": "1.9.0"} } strategies = self.resolver.resolve(conflict) self.assertIsInstance(strategies, list)Based on learnings requiring >80% test coverage for pull requests.
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**/*.py
📄 CodeRabbit inference engine (AGENTS.md)
**/*.py: Follow PEP 8 style guide
Type hints required in Python code
Docstrings required for all public APIs
Files:
tests/test_resolver.py
tests/**/*.py
📄 CodeRabbit inference engine (AGENTS.md)
Maintain >80% test coverage for pull requests
Files:
tests/test_resolver.py
🧠 Learnings (1)
📚 Learning: 2025-12-11T12:03:24.071Z
Learnt from: CR
Repo: cortexlinux/cortex PR: 0
File: AGENTS.md:0-0
Timestamp: 2025-12-11T12:03:24.071Z
Learning: Applies to tests/**/*.py : Maintain >80% test coverage for pull requests
Applied to files:
tests/test_resolver.py
🧬 Code graph analysis (1)
tests/test_resolver.py (1)
cortex/resolver.py (2)
DependencyResolver(10-91)resolve(25-91)
🔇 Additional comments (1)
tests/test_resolver.py (1)
37-49: Excellent field validation test.This test thoroughly verifies that all required fields are present in resolution strategies, directly addressing the previous review feedback.
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I have addressed all feedback, reached >80% test coverage, and added docstrings. All automated checks and resolved conversations are finalized. Ready for review and merge @mikejmorgan-ai. |
2 participants
Fixes #154
/claim #154
Implemented the AI resolution logic using the
semantic_versionlibrary.Summary by CodeRabbit
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Tests
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