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update restore --overwrite documentation

This commit is contained in:
Michael Eischer 2024-05-31 17:59:06 +02:00
parent 5c3709e17a
commit 3ec28ff853
2 changed files with 29 additions and 9 deletions
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19
changelog/unreleased/issue-4817
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@ -1,11 +1,22 @@
Enhancement: Make overwrite behavior of `restore` customizable
The `restore` command now supports an `--overwrite` option to configure whether
already existing files are overwritten. The default is `--overwrite always`,
which overwrites existing files. `--overwrite if-newer` only restores files
from the snapshot that are newer than the local state. And `--overwrite never`
does not modify existing files.
already existing files are overwritten. This behavior can now be configured via
the `--overwrite` option. The following values are supported:
* `--overwrite always` (default): always overwrites already existing files. `restore`
will verify the existing file content and only restore mismatching parts to minimize
downloads. Updates the metadata of all files.
* `--overwrite if-changed`: like the previous case, but speeds up the file content check
by assuming that files with matching size and modification time (mtime) are already up to date.
In case of a mismatch, the full file content is verified. Updates the metadata of all files.
* `--overwrite if-newer`: only overwrite existing files if the file in the snapshot has a
newer modification time (mtime).
* `--overwrite never`: never overwrite existing files.
https://github.com/restic/restic/issues/4817
https://github.com/restic/restic/issues/200
https://github.com/restic/restic/issues/407
https://github.com/restic/restic/issues/2662
https://github.com/restic/restic/pull/4837
https://github.com/restic/restic/pull/4838

19
doc/050_restore.rst
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@ -91,11 +91,20 @@ stored explicitly.
Restoring in-place
------------------
By default, the ``restore`` command overwrites already existing files in the target
directory. This behavior can be configured via the ``--overwrite`` option. The
default is ``--overwrite always``. To only overwrite existing files if the file in
the snapshot is newer, use ``--overwrite if-newer``. To never overwrite existing files,
use ``--overwrite never``.
By default, the ``restore`` command overwrites already existing files at the target
directory. This behavior can be configured via the ``--overwrite`` option. The following
values are supported:
* ``--overwrite always`` (default): always overwrites already existing files. ``restore``
will verify the existing file content and only restore mismatching parts to minimize
downloads. Updates the metadata of all files.
* ``--overwrite if-changed``: like the previous case, but speeds up the file content check
by assuming that files with matching size and modification time (mtime) are already up to date.
In case of a mismatch, the full file content is verified. Updates the metadata of all files.
* ``--overwrite if-newer``: only overwrite existing files if the file in the snapshot has a
newer modification time (mtime).
* ``--overwrite never``: never overwrite existing files.
Restore using mount
===================