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Update cache if a backup file is missing #5596

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@mdegat01 mdegat01 commented Jan 31, 2025

Proposed change

If while processing a backup call we find an expected file is missing, trigger a cache reload of that location as it has likely been modified by the client.

Type of change

  • Dependency upgrade
  • Bugfix (non-breaking change which fixes an issue)
  • New feature (which adds functionality to the supervisor)
  • Breaking change (fix/feature causing existing functionality to break)
  • Code quality improvements to existing code or addition of tests

Additional information

  • This PR fixes or closes issue: fixes #
  • This PR is related to issue:
  • Link to documentation pull request:
  • Link to cli pull request:
  • Link to client library pull request:

Checklist

  • The code change is tested and works locally.
  • Local tests pass. Your PR cannot be merged unless tests pass
  • There is no commented out code in this PR.
  • I have followed the development checklist
  • The code has been formatted using Ruff (ruff format supervisor tests)
  • Tests have been added to verify that the new code works.

If API endpoints or add-on configuration are added/changed:

Summary by CodeRabbit

  • New Features

    • Enhanced backup file download error handling with appropriate user feedback.
    • Improved backup location management and cache handling.
  • Bug Fixes

    • Added mechanism to handle missing backup files.
    • Implemented automatic backup location reloading when files are not found.
  • Tests

    • Added test cases for scenarios involving missing backup files.
    • Verified backup system's response to file deletions and location changes.
    • Simplified test method calls for backup reload functionality.

@mdegat01 mdegat01 added the new-feature A new feature label Jan 31, 2025
@mdegat01 mdegat01 requested a review from agners January 31, 2025 21:24
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coderabbitai bot commented Jan 31, 2025

📝 Walkthrough

Walkthrough

The pull request introduces enhanced error handling and cache management for backup operations across multiple files in the supervisor's backup system. The changes focus on improving the system's response when backup files are missing, implementing a mechanism to reload backup locations dynamically. This involves modifications to the backup manager, API, and associated test cases to ensure robust handling of scenarios where backup files might be deleted or become unavailable.

Changes

File Change Summary
supervisor/api/backups.py Added error handling in download method to check file existence and trigger backup location reload.
supervisor/backups/backup.py Enhanced error handling to create a task for reloading backup locations when a backup file is not found.
supervisor/backups/manager.py Simplified reload method signature, restructured location and backup cache management logic.
tests/api/test_backups.py Added two new test functions to validate backup system behavior with missing files.
tests/backups/test_manager.py Updated reload method calls in existing test functions.
tests/misc/test_tasks.py Simplified reload method call in the test for core backup cleanup.

Sequence Diagram

sequenceDiagram
    participant User
    participant APIBackups
    participant BackupManager
    participant BackupSystem

    User->>APIBackups: Request backup download
    alt Backup file exists
        APIBackups->>BackupSystem: Download backup file
        BackupSystem-->>User: Provide backup file
    else Backup file missing
        APIBackups->>BackupManager: Reload backup locations
        BackupManager->>BackupSystem: Refresh backup state
        APIBackups-->>User: Return 404 Not Found
    end
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Actionable comments posted: 1

📜 Review details

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

📥 Commits

Reviewing files that changed from the base of the PR and between 3664505 and b14f94b.

📒 Files selected for processing (2)
  • tests/backups/test_manager.py (4 hunks)
  • tests/misc/test_tasks.py (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • tests/backups/test_manager.py
⏰ Context from checks skipped due to timeout of 90000ms (4)
  • GitHub Check: Build armv7 supervisor
  • GitHub Check: Build armhf supervisor
  • GitHub Check: Build aarch64 supervisor
  • GitHub Check: Run tests Python 3.13.1

tests/misc/test_tasks.py Show resolved Hide resolved
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