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Add copy functionality

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Add a copy command to copy snapshots between repositories. It allows the user
to specify a destination repository, password, password-file, password-command
or key-hint to supply the necessary details to open the destination repository.

You need to supply a list of snapshots to copy, snapshots which already exist
in the destination repository will be skipped.

Note, when using the network this becomes rather slow, as it needs to read the
blocks, decrypt them using the source key, then encrypt them again using the
destination key before finally writing them out to the destination repository.
This commit is contained in:
Pauline Middelink
2019-08-13 18:27:20 +02:00
committed by Michael Eischer
parent e915cedc3d
commit 7048cc3e58
4 changed files with 219 additions and 3 deletions
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changelog/unreleased/issue-323 Normal file
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Enhancement: Add command for copying snapshots between repositories
We've added a copy command, allowing you to copy snapshots from one
repository to another.
Note that this process will have to read (download) and write (upload) the
entire snapshot(s) due to the different encryption keys used on the source
and destination repository. Also, the transferred files are not re-chunked,
which may break deduplication between files already stored in the
destination repo and files copied there using this command.
https://github.com/restic/restic/issues/323
https://github.com/restic/restic/pull/2606