falzm / fsdiff Goto Github PK

In some cases the checksum performed during a snapshot can be resource-intensive (e.g. big files, very slow storage device...). If content change doesn't matter so much, a shallow mode (where no file checksum are computed/compared) could be useful.

This tool should be packaged for various GNU/Linux distributions (.deb, .rpm etc.) and via Homebrew for macOS. Might look at this GoReleaser thing.

Describe the problem

fsdiff returns errors when handling socket files:

$ fsdiff snap -o before.snap --carry-on Library/
error: unable to compute file checksum: open Library/Containers/com.docker.docker/Data/backend.sock: operation not supported on socket

To Reproduce

fsdiff snapshot path/to/root/dir

Version

fsdiff 0.2.0 (commit: d41c2d041539079cddff2a7a36d0d5971a687fe7)
build info: Go go1.12.4 (gc)

Enable Travis CI testing on repository change.

It would be convenient to be able to exclude some file paths from being included in the snapshot. A git-like --ignore system is considered (package gitignore looks interesting).

When snapshotting a directory containing a symlink, fsdiff ends with this error:
error: unable to compute file checksum: read xxx/~/Downloads/xxx/yyy/zzz: is a directory

At some point, it could be interesting to go the extra mile and also store the files' content in the snapshot to allow users to track how the content has changed instead of just know that it's changed. Caution: this feature could potentially result in very large snapshot files.

Currently fsdiff is not able to track when a directory is renamed: doing so results in reporting that a directory (and its content) has been deleted and a new one appeared. Maybe there is way to achieve this by looking at the directory inode (if the snapshotted tree lies on the same filesystem ¯\_(ツ)_/¯)

When diff'ing large file trees (e.g. fsdiff snap /usr after a system upgrade), it would be nice to have a way to only show specific paths (e.g --include /usr/bin), and/or exclude specific paths (e.g. --exclude /usr/src/linux-headers-*).