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doc: Clarify and make grouping in forget more noticeable

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This commit is contained in:
Leo R. Lundgren 2022-04-16 01:13:13 +02:00
parent edc1a24a90
commit 8ac7519fd5
3 changed files with 19 additions and 13 deletions
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17
cmd/restic/cmd_forget.go
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@ -14,11 +14,16 @@ var cmdForget = &cobra.Command{
Use: "forget [flags] [snapshot ID] [...]",
Short: "Remove snapshots from the repository",
Long: `
The "forget" command removes snapshots according to a policy. Please note that
this command really only deletes the snapshot object in the repository, which
is a reference to data stored there. In order to remove the unreferenced data
after "forget" was run successfully, see the "prune" command. Please also read
the documentation for "forget" to learn about important security considerations.
The "forget" command removes snapshots according to a policy. All snapshots are
first divided into groups according to "--group-by", and after that the policy
specified by the "--keep-*" options is applied to each group individually.
Please note that this command really only deletes the snapshot object in the
repository, which is a reference to data stored there. In order to remove the
unreferenced data after "forget" was run successfully, see the "prune" command.
Please also read the documentation for "forget" to learn about some important
security considerations.
EXIT STATUS
===========
@ -91,7 +96,7 @@ func init() {
f.StringArrayVar(&forgetOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path` (can be specified multiple times)")
f.BoolVarP(&forgetOptions.Compact, "compact", "c", false, "use compact output format")
f.StringVarP(&forgetOptions.GroupBy, "group-by", "g", "host,paths", "string for grouping snapshots by host,paths,tags")
f.StringVarP(&forgetOptions.GroupBy, "group-by", "g", "host,paths", "`group` snapshots by host, paths and/or tags, separated by comma (disable grouping with '')")
f.BoolVarP(&forgetOptions.DryRun, "dry-run", "n", false, "do not delete anything, just print what would be done")
f.BoolVar(&forgetOptions.Prune, "prune", false, "automatically run the 'prune' command if snapshots have been removed")

2
cmd/restic/cmd_snapshots.go
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@ -58,7 +58,7 @@ func init() {
panic(err)
}
f.IntVar(&snapshotOptions.Latest, "latest", 0, "only show the last `n` snapshots for each host and path")
f.StringVarP(&snapshotOptions.GroupBy, "group-by", "g", "", "string for grouping snapshots by host,paths,tags")
f.StringVarP(&snapshotOptions.GroupBy, "group-by", "g", "", "`group` snapshots by host, paths and/or tags, separated by comma")
}
func runSnapshots(opts SnapshotOptions, gopts GlobalOptions, args []string) error {

13
doc/060_forget.rst
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@ -212,12 +212,13 @@ The ``forget`` command accepts the following policy options:
.. note:: Specifying ``--keep-tag ''`` will match untagged snapshots only.
When ``forget`` is run with a policy, restic loads the list of all snapshots,
then groups these by host name and list of directories. The grouping options can
be set with ``--group-by``, to e.g. group snapshots by only paths and tags use
``--group-by paths,tags``. The policy is then applied to each group of snapshots
separately. This is a safety feature to prevent accidental removal of unrelated
backup sets.
When ``forget`` is run with a policy, restic first loads the list of all snapshots
and groups them by their host name and paths. The grouping options can be set with
``--group-by``, e.g. using ``--group-by paths,tags`` to instead group snapshots by
paths and tags. The policy is then applied to each group of snapshots individually.
This is a safety feature to prevent accidental removal of unrelated backup sets. To
disable grouping and apply the policy to all snapshots regardless of their host,
paths and tags, use ``--group-by ''`` (that is, an empty value to ``--group-by``).
Additionally, you can restrict the policy to only process snapshots which have a
particular hostname with the ``--host`` parameter, or tags with the ``--tag``