engram

A fast and atomic version control system for portable file backups

Usage

Initialize a repository with data:
$ engram init ~/repo ~/data

Update a repository with new data:
$ engram update ~/repo ~/data 3days

Pull historical repository data:
$ engram pull ~/repo ~/out 2024-11-28T12:00:00

Revert updates to a repository:
$ engram revert ~/repo 2024-11-28T12:00:00

:information: See engram --help for more detailed information.

Current Limitations

• duplicate / copied files have data re-added
• renamed directories can create big index files
• moved files that are modified in same patch are considered new instead of delta
• cannot process files bigger than available system memory
• will not preserve file permissions
• data integrity is not checked