Tr/fallbacks

[mrT23]

PR Type

Enhancement, Tests

---

Description

• Enhanced load_yaml and try_fix_yaml functions to include first_key and last_key parameters for improved YAML extraction.
• Updated PR code suggestions and review preparation functions to utilize the new key-based fallback mechanism.
• Added unit tests to validate the new fallback mechanism in try_fix_yaml.

---

Changes walkthrough 📝

	Relevant files
Enhancement	utils.py Add key-based fallback mechanism to YAML loading functions pr_agent/algo/utils.py Added first_key and last_key parameters to load_yaml and try_fix_yaml functions. Implemented a new fallback mechanism using first_key and last_key to extract YAML snippets. Updated existing fallback comments for clarity. +32/-9    pr_code_suggestions.py Enhance PR code suggestions with key-based YAML extraction pr_agent/tools/pr_code_suggestions.py Updated _prepare_pr_code_suggestions to use first_key and last_key parameters. +2/-1      pr_reviewer.py Improve PR review preparation with key-based YAML extraction pr_agent/tools/pr_reviewer.py Updated _prepare_pr_review and _publish_inline_code_comments to use first_key and last_key parameters. +8/-2
Tests	test_try_fix_yaml.py Add unit tests for key-based YAML extraction fallback        tests/unittest/test_try_fix_yaml.py Added new tests for the try_fix_yaml function with first_key and last_key parameters. +46/-0

---

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

[codiumai-pr-agent-pro]

PR Reviewer Guide 🔍

⏱️ Estimated effort to review: 3 🔵🔵🔵⚪⚪

🏅 Score: 85

🧪 PR contains tests

🔒 No security concerns identified

🔀 Multiple PR themes Sub-PR theme: Enhance YAML loading and fixing mechanisms with key-based fallbacks Relevant files: pr_agent/algo/utils.py Sub-PR theme: Update PR code suggestion and review preparation to utilize new YAML extraction keys Relevant files: pr_agent/tools/pr_code_suggestions.py pr_agent/tools/pr_reviewer.py Sub-PR theme: Add unit tests for new YAML extraction mechanism in try_fix_yaml function Relevant files: tests/unittest/test_try_fix_yaml.py

⚡ Key issues to review Possible Bug: The implementation of the new fallback mechanism in try_fix_yaml might not handle edge cases where the first_key or last_key are not found, leading to incorrect YAML extraction. Code Clarity: The addition of first_key and last_key parameters in load_yaml and try_fix_yaml functions increases the complexity of the code. Consider adding more detailed comments explaining the purpose and usage of these parameters to aid future maintainability.

[codiumai-pr-agent-pro]

PR Code Suggestions ✨

Latest suggestions up to e30c70d

Category	Suggestion	Score
Maintainability	Extract repeated YAML loading code into a separate function Consider extracting the repeated code for loading YAML data into a separate function to reduce code duplication and improve maintainability. pr_agent/tools/pr_reviewer.py [191-194] -data = load_yaml(self.prediction.strip(), - keys_fix_yaml=["estimated_effort_to_review_[1-5]:", "security_concerns:", "key_issues_to_review:", - "relevant_file:", "relevant_line:", "suggestion:"], - first_key=first_key, last_key=last_key) +def load_review_yaml(self): + first_key = 'review' + last_key = 'security_concerns' + keys_fix_yaml = ["estimated_effort_to_review_[1-5]:", "security_concerns:", "key_issues_to_review:", + "relevant_file:", "relevant_line:", "suggestion:"] + return load_yaml(self.prediction.strip(), keys_fix_yaml=keys_fix_yaml, + first_key=first_key, last_key=last_key) +data = load_review_yaml() + Apply this suggestion Suggestion importance[1-10]: 8 Why: This suggestion significantly improves code maintainability and reduces duplication, following the DRY principle.	8
	Use a constant for the list of YAML keys Consider using a constant for the list of YAML keys instead of defining it within the function. This would improve maintainability and allow for easier updates if needed. pr_agent/algo/utils.py [530-531] -keys_yaml = ['relevant line:', 'suggestion content:', 'relevant file:', 'existing code:', 'improved code:'] -keys_yaml = keys_yaml + keys_fix_yaml +YAML_KEYS = ['relevant line:', 'suggestion content:', 'relevant file:', 'existing code:', 'improved code:'] +keys_yaml = YAML_KEYS + keys_fix_yaml Apply this suggestion Suggestion importance[1-10]: 7 Why: This suggestion enhances maintainability and follows best practices for constant definitions, making future updates easier.	7
Best practice	Use a more descriptive variable name for the exception Consider using a more descriptive variable name instead of 'e' for the exception in the try-except block. This will make the code more readable and easier to understand. pr_agent/algo/utils.py [518-519] -except Exception as e: - get_logger().error(f"Failed to parse AI prediction: {e}") +except Exception as parse_error: + get_logger().error(f"Failed to parse AI prediction: {parse_error}") Apply this suggestion Suggestion importance[1-10]: 6 Why: The suggestion improves code readability, but it's a minor change that doesn't significantly impact functionality.	6
Enhancement	Correct the comment for the fallback number The comment for the fourth fallback is incorrect. It should be "fifth fallback" instead of "fourth fallback". Update the comment to reflect the correct fallback number. pr_agent/algo/utils.py [588] +# fifth fallback - try to remove last lines - Apply this suggestion Suggestion importance[1-10]: 5 Why: While accurate comments are important, this is a minor correction that doesn't affect code functionality.	5

---

Previous suggestions

Suggestions up to commit e30c70d

Category	Suggestion	Score
Enhancement	Improve the method for finding the end of the YAML snippet in the fourth fallback In the fourth fallback method, consider using a more robust way to find the end of the YAML snippet. The current implementation might miss some valid YAML content if there are multiple newlines after the last key. You could use a regex pattern or a more sophisticated parsing method to ensure all relevant content is included. pr_agent/algo/utils.py [576-579] -index_end = response_text.find("\n\n", index_last_code) # look for newlines after last_key -if index_end == -1: - index_end = len(response_text) +index_end = len(response_text) +for match in re.finditer(r'\n\s*\n', response_text[index_last_code:]): + if not re.match(r'\s*[-\w]+:', response_text[index_last_code + match.end():].lstrip()): + index_end = index_last_code + match.start() + break response_text_copy = response_text[index_start:index_end].strip().strip('```yaml').strip('`').strip() Suggestion importance[1-10]: 8 Why: This suggestion addresses a potential issue in the YAML parsing logic, which could lead to more robust and accurate parsing of YAML content.	8
	Add more test cases for the try_fix_yaml function to cover different scenarios Add more test cases to cover different scenarios and edge cases for the try_fix_yaml function. This will help ensure the function works correctly in various situations and improve overall code reliability. tests/unittest/test_try_fix_yaml.py [70-90] def test_with_initial_yaml(self): review_text = '''\ I suggest the following: ``` code_suggestions: - relevant_file: | src/index.ts label: | best practice - relevant_file: | src/index2.ts label: | enhancment ``` We can further improve the code by using the `const` keyword instead of `var` in the `src/index.ts` file. ''' expected_output = {'code_suggestions': [{'relevant_file': 'src/index.ts\n', 'label': 'best practice\n'}, {'relevant_file': 'src/index2.ts\n', 'label': 'enhancment'}]} assert try_fix_yaml(review_text, first_key='code_suggestions', last_key='label') == expected_output +def test_with_malformed_yaml(self): + review_text = '''\ + code_suggestions: + - relevant_file: src/index.ts + label: best practice + - relevant_file: src/index2.ts + label: enhancment + ''' + expected_output = {'code_suggestions': [{'relevant_file': 'src/index.ts', 'label': 'best practice'}, {'relevant_file': 'src/index2.ts', 'label': 'enhancment'}]} + assert try_fix_yaml(review_text, first_key='code_suggestions', last_key='label') == expected_output + +def test_with_missing_keys(self): + review_text = '''\ + code_suggestions: + - relevant_file: src/index.ts + - label: enhancment + ''' + expected_output = {'code_suggestions': [{'relevant_file': 'src/index.ts'}, {'label': 'enhancment'}]} + assert try_fix_yaml(review_text, first_key='code_suggestions', last_key='label') == expected_output + Suggestion importance[1-10]: 7 Why: Adding more test cases improves code reliability and helps catch potential issues, which is important for maintaining the quality of the YAML parsing functionality.	7
	Add a log message for successful first fallback parsing Consider adding a log message when the first fallback is successful. This will help with debugging and understanding which fallback method was used to fix the YAML. pr_agent/algo/utils.py [540-544] try: data = yaml.safe_load('\n'.join(response_text_lines_copy)) + get_logger().info("Successfully parsed AI prediction after adding |-") return data except: get_logger().info(f"Failed to parse AI prediction after adding |-\n") Suggestion importance[1-10]: 6 Why: This suggestion enhances debugging capabilities and provides better insight into the fallback process, which is useful for maintenance.	6
Best practice	Use a more descriptive variable name in exception handling Consider using a more descriptive variable name instead of e in the exception handling. This will make the code more readable and maintainable. For example, you could use exc or error instead. pr_agent/algo/utils.py [518-519] -except Exception as e: - get_logger().error(f"Failed to parse AI prediction: {e}") +except Exception as error: + get_logger().error(f"Failed to parse AI prediction: {error}") Suggestion importance[1-10]: 5 Why: The suggestion is valid and improves code readability, but it's a minor change that doesn't significantly impact functionality.	5

Suggestions

Category	Suggestion	Score
Best practice	Improve exception handling by specifying the expected exception type Instead of using a broad Exception type, specify the exceptions you expect to handle. This makes the error handling more precise and avoids catching unintended exceptions. pr_agent/algo/utils.py [518] -except Exception as e: +except yaml.YAMLError as e: Suggestion importance[1-10]: 9 Why: Specifying the expected exception type (yaml.YAMLError) instead of a broad Exception improves error handling precision and avoids catching unintended exceptions, which is a best practice.	9
Maintainability	Use regex for more reliable string operations Replace the manual string operations with regex to ensure more reliable and maintainable code when modifying response text lines. pr_agent/algo/utils.py [537-538] -response_text_lines_copy[i] = response_text_lines_copy[i].replace(f'{key}', f'{key} |-\n ') +response_text_lines_copy[i] = re.sub(rf'^{key}:', rf'{key}: |-\n ', response_text_lines_copy[i]) Suggestion importance[1-10]: 8 Why: Replacing manual string operations with regex ensures more reliable and maintainable code, especially when modifying response text lines.	8
Possible issue	Ensure proper formatting of the response text before YAML parsing Use a more robust method to ensure the response text is properly formatted before attempting to parse it as YAML. This avoids potential errors from improperly stripped strings. pr_agent/algo/utils.py [515] -response_text = response_text.removeprefix('```yaml').rstrip('`') +response_text = response_text.strip('`').strip() Suggestion importance[1-10]: 7 Why: The suggested change improves the robustness of the code by ensuring the response text is properly formatted before parsing, reducing potential errors from improperly stripped strings.	7
Performance	Use list methods to enhance performance and readability Instead of manually concatenating lists, use list comprehension for better performance and readability when modifying keys_yaml. pr_agent/algo/utils.py [531] -keys_yaml = keys_yaml + keys_fix_yaml +keys_yaml.extend(keys_fix_yaml) Suggestion importance[1-10]: 6 Why: Using list methods like extend() instead of manual concatenation enhances performance and readability, though the improvement is minor.	6