duplicity.backends.par2backend module

class duplicity.backends.par2backend.Par2Backend(parsed_url)

Bases: Backend

This backend wrap around other backends and create Par2 recovery files before the file and the Par2 files are transfered with the wrapped backend.

If a received file is corrupt it will try to repair it on the fly.

__init__(parsed_url)

close()

delete(filename)

delete given filename and its .par2 files

delete_list(filename_list)

delete given filename_list and all .par2 files that belong to them

error_code(operation, e)

get(remote_filename, local_path)

transfer remote_filename and the related .par2 file into a temp-dir. remote_filename will be renamed into local_path before finishing.

If “par2 verify” detect an error transfer the Par2-volumes into the temp-dir and try to repair.

list()

Return list of filenames (byte strings) present in backend

Files ending with “.par2” will be excluded from the list.

move(local, remote)

put(local, remote)

query(filename)

query_list(filename_list)

retry_cleanup()

transfer(method, source_path, remote_filename)

create Par2 files and transfer the given file and the Par2 files with the wrapped backend.

Par2 must run on the real filename or it would restore the temp-filename later on. So first of all create a tempdir and symlink the soure_path with remote_filename into this.

unfiltered_list()