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CopyIn fix #269

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CopyIn fix #269

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KesterTan
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This fix attempts to address the inconsistency brought by the copyIn function.

Namely, this PR includes these notable changes:

  1. 3 retries for file transfer
  2. Error handling for creating fresh directories and invalid inputFiles structure

@KesterTan KesterTan requested a review from evanyeyeye January 16, 2025 08:19
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coderabbitai bot commented Jan 16, 2025

📝 Walkthrough

Walkthrough

The changes to the copyIn method in the Ec2SSH class enhance file transfer reliability and error handling for EC2 SSH operations. The modifications introduce comprehensive input validation, a retry mechanism for file transfers, and improved error logging. The method now checks directory preparation success, validates input file structures, implements multiple copy attempts, and provides detailed logging for successful and failed file transfers.

Changes

File Change Summary
vmms/ec2SSH.py - Added input file validation for localFile and destFile attributes
- Implemented directory preparation success check
- Introduced retry mechanism (up to 3 attempts) for file transfers
- Enhanced error logging and error code handling

Sequence Diagram

sequenceDiagram
    participant Caller
    participant Ec2SSH
    participant RemoteVM

    Caller->>Ec2SSH: copyIn(vm, inputFiles)
    Ec2SSH->>Ec2SSH: Validate input files
    alt Invalid input
        Ec2SSH-->>Caller: Return -1 (Error)
    end
    Ec2SSH->>RemoteVM: Prepare directory
    alt Directory preparation fails
        Ec2SSH-->>Caller: Return error code
    end
    loop File Transfer (max 3 attempts)
        Ec2SSH->>RemoteVM: Copy file
        alt File transfer successful
            Ec2SSH->>Ec2SSH: Log success
        else File transfer failed
            Ec2SSH->>Ec2SSH: Retry copy
        end
    end
    Ec2SSH-->>Caller: Return transfer result
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Actionable comments posted: 0

🧹 Nitpick comments (4)
vmms/ec2SSH.py (4)

349-349: Remove trailing whitespace.

Lines contain trailing whitespace that should be removed as flagged by the pipeline.

-        
+

Also applies to: 353-353

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🪛 GitHub Actions: Python application

[warning] File contains trailing whitespace that needed to be trimmed


[warning] Code formatting issues detected and automatically reformatted by Black


354-358: Enhance error logging for invalid files.

While the validation is good, the error message could be more specific to help identify which file is missing the required attributes.

-            self.log.error("Invalid inputFiles structure")
+            invalid_files = [i for i, file in enumerate(inputFiles) 
+                           if not hasattr(file, 'localFile') or not hasattr(file, 'destFile')]
+            self.log.error(f"Invalid inputFiles structure: Files at indices {invalid_files} "
+                          "are missing required attributes (localFile, destFile)")
🧰 Tools
🪛 GitHub Actions: Python application

[warning] File contains trailing whitespace that needed to be trimmed


[warning] Code formatting issues detected and automatically reformatted by Black


359-359: Move max_retries to configuration.

The max_retries value should be defined in the configuration file for better maintainability and consistency.

-        max_retries = 3
+        max_retries = config.Config.COPYIN_MAX_RETRIES  # Add this constant to config.py
🧰 Tools
🪛 GitHub Actions: Python application

[warning] File contains trailing whitespace that needed to be trimmed


[warning] Code formatting issues detected and automatically reformatted by Black


378-381: Enhance success logging message.

The success message could include the number of files transferred for better observability.

-        self.log.info(f"Successfully copied files to {domain_name}:autolab")
+        self.log.info(f"Successfully copied {len(inputFiles)} files to {domain_name}:autolab")
🧰 Tools
🪛 GitHub Actions: Python application

[warning] File contains trailing whitespace that needed to be trimmed


[warning] Code formatting issues detected and automatically reformatted by Black

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 92ae12f and 2da16ff.

📒 Files selected for processing (1)
  • vmms/ec2SSH.py (1 hunks)
🧰 Additional context used
🪛 GitHub Actions: Python application
vmms/ec2SSH.py

[warning] File contains trailing whitespace that needed to be trimmed


[warning] Code formatting issues detected and automatically reformatted by Black

🔇 Additional comments (2)
vmms/ec2SSH.py (2)

350-352: LGTM! Good addition of directory preparation validation.

The added validation ensures that the directory is properly prepared before proceeding with file transfers.

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[warning] File contains trailing whitespace that needed to be trimmed


[warning] Code formatting issues detected and automatically reformatted by Black


363-376: LGTM! Well-implemented retry mechanism.

The retry logic with appropriate warning messages is a good addition that will improve reliability of file transfers.

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[warning] File contains trailing whitespace that needed to be trimmed


[warning] Code formatting issues detected and automatically reformatted by Black

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