fix: add fallback for parsing AI responses with leading '+' symbols

[mrT23]

PR Type

Bug fix

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Description

• Added a fallback to handle AI responses with leading '+' symbols.

• Improved error handling by refining fallback mechanisms.

• Adjusted logging to reflect parsing attempts and outcomes.

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Changes walkthrough 📝

	Relevant files
Bug fix	utils.py Add fallback for AI responses with leading '+'                      pr_agent/algo/utils.py Added a new fallback to remove leading '+' symbols from AI responses. Updated logging to indicate successful parsing after applying the new fallback. Adjusted fallback sequence to improve parsing robustness. Refined existing fallback mechanisms for better error handling. +12/-3

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[qodo-merge-pro-for-open-source]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Error Handling Silent error handling with bare 'pass' statements could hide important parsing issues. Consider logging failed parsing attempts to aid debugging. pass Code Duplication The error handling pattern of try-except-pass is repeated multiple times. Consider extracting the YAML parsing logic into a helper function to reduce duplication. try: data = yaml.safe_load('\n'.join(response_text_lines_copy)) get_logger().info(f"Successfully parsed AI prediction after removing leading '+'") return data except: pass

[ofir-frd]

/ask What types of arguments can be returned from the try_fix_yaml method?

[qodo-merge-pro-for-open-source]

Ask❓

What types of arguments can be returned from the try_fix_yaml method?

Answer:

Based on the code shown in the PR diff, the try_fix_yaml method can return:

1. A dictionary (data) - When any of the YAML parsing attempts succeed. This is evident from the multiple return data statements after successful yaml.safe_load() calls.

2. None (implicitly) - If none of the fallback mechanisms succeed in parsing the YAML. This is because the function doesn't have an explicit return statement at the end, and if all parsing attempts fail (all the try-except blocks fail), Python functions return None by default.

This can be seen in the code where:

• Each successful parsing attempt returns the parsed data dictionary
• All failed parsing attempts are caught in except blocks that either pass or continue to the next fallback
• If all fallbacks fail, the function will implicitly return None

So in summary:

• Return type 1: dict (when parsing succeeds)
• Return type 2: None (when all parsing attempts fail)

[ofir-frd]

/ask Refactor the load_yaml method to declare a return type of both dict and None types.

[qodo-merge-pro-for-open-source]

Ask❓

Refactor the load_yaml method to declare a return type of both dict and None types.

Answer:

I apologize, but I don't see a load_yaml method in the provided PR diff. The diff shows modifications to the try_fix_yaml function, but not a load_yaml method.

However, if you want to refactor a method to declare both dict and None as return types in Python, you can use the Union type from the typing module. Here's how you would do it:

from typing import Union, Dict

def load_yaml(parameter: str) -> Union[Dict, None]:
    # function implementation
    pass

Or using the more modern Python 3.10+ syntax:

def load_yaml(parameter: str) -> dict | None:
    # function implementation
    pass

Both approaches would indicate that the function can return either a dictionary or None. Would you like me to help with a specific method that's actually present in the PR?

[mrT23]

/improve --config.model="deepseek/r1"

[qodo-merge-pro-for-open-source]

PR Code Suggestions ✨

Latest suggestions up to 136c75a

Reasoning Step:

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Okay, let's see what the user is asking for. They provided a PR diff and want me to act as PR-Reviewer, an AI that examines the code changes and offers suggestions. The goal is to find critical bugs or issues in the new code introduced by the PR.

First, I'll look at the provided diff. The file in question is 'pr_agent/algo/utils.py', and there are two hunks of changes.

In the first hunk, the except block in the try-except statement has a change. Previously, it logged an error message when parsing failed, but now it just passes. That means any exceptions here are being swallowed without any logging or handling. That's a problem because if an exception occurs, we won't know about it, making debugging harder. So, I should suggest adding logging back in or at least not ignoring the exception.

Moving to the second hunk, a new fallback method is added to remove leading '+' symbols. The code loops through each line and modifies it. However, the loop starts at 0, which might not be necessary if the issue is with lines that have leading '+'. Also, the code doesn't check if the line actually starts with '+', so it might be modifying lines that don't need it. A better approach would be to start from the first line and only modify lines that begin with '+'. This would make the code more efficient and accurate.

So, I'll create two suggestions. The first addresses the except block, suggesting to reintroduce logging or handle the exception properly. The second suggestion improves the loop in the fifth fallback by starting from the first line and checking for the leading '+' before modifying.

I need to make sure each suggestion is concise, actionable, and fits the YAML structure provided. Each should include the relevant file, language, existing code snippet, improved code, a summary, and a label.

I think that's all. Let me structure these thoughts into the required YAML format.

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Category	Suggestion	Score
General	Replace bare except with specific exception Avoid using a bare except clause as it can catch unintended exceptions and make debugging difficult. Instead, specify the exception type(s) you want to handle. pr_agent/algo/utils.py [737] -except: +except yaml.YAMLError: pass Apply this suggestion Suggestion importance[1-10]: 8 Why: Using a bare except can catch unintended exceptions, making debugging harder. Catching specific exceptions improves error handling and maintainability.	8
Possible issue	Safeguard against unintended line modifications Ensure the logic for removing leading '+' symbols does not unintentionally modify lines that do not start with '+' to avoid data corruption. pr_agent/algo/utils.py [785] -response_text_lines_copy[i] = ' ' + response_text_lines_copy[i][1:] +if response_text_lines_copy[i].startswith('+'): + response_text_lines_copy[i] = ' ' + response_text_lines_copy[i][1:] Apply this suggestion Suggestion importance[1-10]: 7 Why: The modification ensures that only lines starting with '+' are altered, preventing unintended data corruption.	7

• Author self-review: I have reviewed the PR code suggestions, and addressed the relevant ones.

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Previous suggestions

Suggestions up to commit 136c75a

Category	Suggestion	Score
Possible issue	Add safety check for string operation Validate that the line has a leading '+' before attempting to remove it to avoid potential index errors. pr_agent/algo/utils.py [784-785] for i in range(0, len(response_text_lines_copy)): - response_text_lines_copy[i] = ' ' + response_text_lines_copy[i][1:] + if response_text_lines_copy[i].startswith('+'): + response_text_lines_copy[i] = ' ' + response_text_lines_copy[i][1:] Suggestion importance[1-10]: 8 Why: This is an important safety improvement that prevents potential IndexError exceptions when processing lines that don't start with '+'. The current code assumes all lines have at least one character and start with '+'.	8
Learned best practice	Add input validation and specific error handling to prevent runtime errors and improve debugging capabilities Add input validation for response_text_lines_copy before accessing indices, and include more specific error handling in the try-except blocks. The current bare except clauses make debugging harder and could mask important issues. pr_agent/algo/utils.py [784-791] -for i in range(0, len(response_text_lines_copy)): - response_text_lines_copy[i] = ' ' + response_text_lines_copy[i][1:] +if not response_text_lines_copy: + get_logger().warning("Empty response text lines") + return None + +for i in range(len(response_text_lines_copy)): + if response_text_lines_copy[i]: # Check if line is not empty + response_text_lines_copy[i] = ' ' + response_text_lines_copy[i][1:] try: data = yaml.safe_load('\n'.join(response_text_lines_copy)) - get_logger().info(f"Successfully parsed AI prediction after removing leading '+'") + get_logger().info("Successfully parsed AI prediction after removing leading '+'") return data -except: - pass +except yaml.YAMLError as e: + get_logger().debug(f"Failed to parse YAML after removing '+': {e}") + return None	6
General	Add error logging for debugging Add error logging for the new fallback mechanism to track when it's being used and help diagnose parsing issues. pr_agent/algo/utils.py [786-791] try: data = yaml.safe_load('\n'.join(response_text_lines_copy)) get_logger().info(f"Successfully parsed AI prediction after removing leading '+'") return data -except: +except Exception as e: + get_logger().debug(f"Failed to parse AI prediction after removing leading '+': {str(e)}") pass Suggestion importance[1-10]: 5 Why: Adding error logging would improve debugging capabilities, though it's not critical since the code continues to work through fallbacks. The suggestion provides useful diagnostic information without affecting core functionality.	5