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Summary

This PR fixes #7385

Changes

  • Added retry logic: Downloads now retry up to 3 times with exponential backoff to handle transient network issues
  • Fallback to manual checksums: If download fails, the installer checks for manually placed checksum files at ~/.localai/checksums/checksums-<version>.txt
  • Graceful degradation: Installation can proceed without checksum verification (with prominent warnings) if checksums are unavailable
  • Resource leak fix: Fixed potential file handle leaks in the download retry loop
  • HTTP client configuration: Added configurable HTTP client with 30-second timeout
  • Format string fix: Fixed format string security issue in systray_manager.go

Testing

  • All existing tests pass (26/27 - one pre-existing failure unrelated to changes)
  • Retry logic properly closes resources on each attempt
  • Checksum verification still works when checksums are available

Generated with Claude Code

- Add HTTP client with 30s timeout to ReleaseManager
- Implement downloadFileWithRetry with 3 attempts and exponential backoff
- Allow manual checksum placement at ~/.localai/checksums/checksums-<version>.txt
- Continue installation with warning if checksum download/verification fails
- Add test for HTTPClient initialization
- Fix linter error in systray_manager.go

Fixes mudler#7385

Signed-off-by: majiayu000 <1835304752@qq.com>
This commit addresses issue mudler#7385 by implementing:
- Retry logic (3 attempts) for checksum file downloads
- Fallback to manually placed checksum files
- Option to proceed with installation if checksums unavailable (with warnings)
- Fixed resource leaks in download retry loop
- Added configurable HTTP client with 30s timeout

The installation will now be more resilient to network issues while
maintaining security through checksum verification when available.

Signed-off-by: majiayu000 <1835304752@qq.com>
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log.Printf("Warning: failed to download checksums: %v", downloadErr)

// Check if user has manually placed a checksums file
manualChecksumPath := filepath.Join(rm.ChecksumsPath, fmt.Sprintf("checksums-%s.txt", version))
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would actually make sense here to check if first there is already a checksum file and honor that, and skipping download entirely in such case

This commit addresses the review feedback from mudler on PR mudler#7788.
The code now checks if there's already a checksum file (either manually
placed or previously downloaded) and honors that, skipping download
entirely in such case.

Changes:
- Check for existing checksum file at ~/.localai/checksums/checksums-<version>.txt first
- Check for existing downloaded checksum file at binary path
- Only attempt to download if no existing checksum file is found
- This prevents unnecessary network requests and honors user-placed checksums

Signed-off-by: majiayu000 <1835304752@qq.com>

🤖 Generated with Claude Code

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
@majiayu000 majiayu000 closed this Dec 30, 2025
@majiayu000 majiayu000 reopened this Dec 30, 2025
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looking good!

@mudler mudler merged commit ba73d2e into mudler:master Dec 30, 2025
36 checks passed
mudler pushed a commit to coffeerunhobby/LocalAI that referenced this pull request Jan 2, 2026
…calai (mudler#7788)

* fix: add retry logic and fallback for checksums.txt download

- Add HTTP client with 30s timeout to ReleaseManager
- Implement downloadFileWithRetry with 3 attempts and exponential backoff
- Allow manual checksum placement at ~/.localai/checksums/checksums-<version>.txt
- Continue installation with warning if checksum download/verification fails
- Add test for HTTPClient initialization
- Fix linter error in systray_manager.go

Fixes mudler#7385

Signed-off-by: majiayu000 <1835304752@qq.com>

* fix: add retry logic and improve checksums.txt download handling

This commit addresses issue mudler#7385 by implementing:
- Retry logic (3 attempts) for checksum file downloads
- Fallback to manually placed checksum files
- Option to proceed with installation if checksums unavailable (with warnings)
- Fixed resource leaks in download retry loop
- Added configurable HTTP client with 30s timeout

The installation will now be more resilient to network issues while
maintaining security through checksum verification when available.

Signed-off-by: majiayu000 <1835304752@qq.com>

* fix: check for existing checksum file before downloading

This commit addresses the review feedback from mudler on PR mudler#7788.
The code now checks if there's already a checksum file (either manually
placed or previously downloaded) and honors that, skipping download
entirely in such case.

Changes:
- Check for existing checksum file at ~/.localai/checksums/checksums-<version>.txt first
- Check for existing downloaded checksum file at binary path
- Only attempt to download if no existing checksum file is found
- This prevents unnecessary network requests and honors user-placed checksums

Signed-off-by: majiayu000 <1835304752@qq.com>

🤖 Generated with Claude Code

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

---------

Signed-off-by: majiayu000 <1835304752@qq.com>
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
@mudler mudler added the bug Something isn't working label Jan 17, 2026
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Failed to download checksums.txt when using launch to install localai

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