sync_mv

Overview

Generates a script containing mkdir and mv commands that moves the files in the dst folder to match the file structure of the src folder.

This utility is helpful for avoiding file copy (often from a remote computer) when using rsync and the files in the src folder have been moved:

1. It detects a file that have been moved in src that already existing in dst, and generate a mv command to move the file.

2. It detects duplication with file size and modified date. So it's assuming rsync is copying the file attributes over. E.g., using rsync -a.

3. By default files smaller than 1MB is ignored, since copying them with rsync does not add much time. The threshold can be controlled by the --min-file-size flag.

4. All symlinks are ignored.

Command:

sync_mv --action digest --folder source_folder --min-file-size 1000000 > src.json
# or: ssh user@host_ip '/home/user/sync_mv --action digest --folder source_folder --min-file-size 1000000' > src.json
sync_mv --action digest --folder destination_folder --min-file-size 1000000 > dst.json
sync_mv --action diff --src src.json --dst dst.json > diff.txt

The above command generates a diff.txt containing the command to run. You can inspect the file and run it and then optionally sync the folders with rsync. E.g.,

bash diff.txt
rsync -avh source_folder destination_folder

Installation

1. install cargo
2. run cargo install sync_mv

License

MIT