https://github.com/albertito/summer

Utility to detect accidental data corruption (e.g. bitrot)
https://github.com/albertito/summer

bitrot checksums files filesystem golang

Last synced: 4 months ago
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Utility to detect accidental data corruption (e.g. bitrot)

• Host: GitHub
• URL: https://github.com/albertito/summer
• Owner: albertito
• License: other
• Created: 2023-08-23T19:40:02.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2025-04-13T09:26:55.000Z (about 1 year ago)
• Last Synced: 2025-04-19T09:22:10.967Z (about 1 year ago)
• Topics: bitrot, checksums, files, filesystem, golang
• Language: Go
• Homepage:
• Size: 48.8 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          

# summer 🌞 🏖

Utility to detect accidental data corruption (e.g. bitrot, storage media

problems).  Not intended to detect malicious modification.

Checksums are written to/read from each file's extended attributes.

## Status

[![tests](https://github.com/albertito/summer/actions/workflows/tests.yaml/badge.svg)](https://github.com/albertito/summer/actions/workflows/tests.yaml)

[![codecov](https://codecov.io/gh/albertito/summer/graph/badge.svg?token=Nd3STeoyuk)](https://codecov.io/gh/albertito/summer)

summer is still under active development. The user interface and on-disk

format may change in backwards-incompatible ways.

## Install

```

go install blitiri.com.ar/go/summer@latest

```

## Example

The most common use case is to run `summer update`, which writes checksums for

new or modified files, and verifies the checksums of the files which have not

been modified.

The `-x` flag stops summer from crossing filesystem boundaries (for each of

the given paths).

```

sudo summer -x update /home /etc /usr

```

## Contact

If you have any bug reports, questions, comments or patches please send them

to summer@alb.ar.