fix(server/v2): fp.Close is called twice

[lfz941]

Summary by CodeRabbit

• Bug Fixes

  • Improved error handling in archive dump command to capture and report multiple errors more effectively
  • Enhanced error tracking during file operations to prevent losing original error context

• Refactor

  • Updated method signature to support more robust error management

The changes focus on strengthening the reliability of error reporting during archive-related operations.

[coderabbitai]

📝 Walkthrough

Walkthrough

The changes involve modifying the error handling mechanism in the DumpArchiveCmd method within the server/v2/store/snapshot.go file. The primary modification is updating the method signature to use a named error return variable and improving error handling when closing a file pointer. The new implementation ensures that multiple errors can be captured and reported together using errors.Join(), preventing the loss of original error context during file closure.

Changes

File	Change Summary
server/v2/store/snapshot.go	Updated DumpArchiveCmd method signature to use named error return and improved error handling with errors.Join()

Sequence Diagram

sequenceDiagram
    participant Cmd as Command
    participant Method as DumpArchiveCmd
    participant File as File Pointer

    Cmd->>Method: Invoke RunE
    Method->>File: Open/Process File
    Note over Method: Defer file close
    alt Error occurs
        Method-->>Method: Capture initial error
        File->>Method: Attempt file close
        Method->>Method: Join initial and close errors
    end
    Method-->>Cmd: Return aggregated error

Loading

The sequence diagram illustrates the enhanced error handling flow, showing how initial errors and file closure errors are captured and potentially combined before being returned to the calling command.

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📜 Recent review details

Configuration used: .coderabbit.yml
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between d39d0bc and ba037c7.

📒 Files selected for processing (1)

• server/v2/store/snapshot.go (3 hunks)

🧰 Additional context used

📓 Path-based instructions (1)

server/v2/store/snapshot.go (1)

Pattern **/*.go: Review the Golang code for conformity with the Uber Golang style guide, highlighting any deviations.

🔇 Additional comments (3)

server/v2/store/snapshot.go (3)

180-180: Great use of a named return error variable.

By naming the error return variable, you're able to seamlessly capture and consolidate any subsequent errors—including those in deferred calls—without losing context.

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223-225: Excellent handling of potential double-close errors.

Using errors.Join(err, fp.Close()) in a deferred function allows you to combine errors from the file-creation logic and file-close operation. This ensures you don’t lose the original context if multiple errors occur.

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260-260: Clear final return logic.

Returning nil here is consistent with your use of the named error variable, as any error produced in this function will be set through the named variable in preceding logic.

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