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restic rewrite include - based on restic 0.18.1

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cmd/restic/cmd_rewrite.go:
introduction of include filters for this command:
- add include filters, add error checking code
- add new parameter 'keepEmptyDirectoryFunc' to 'walker.NewSnapshotSizeRewriter()',
  so empty directories have to be kept to keep the directory structure intact
- add parameter 'keepEmptySnapshot' to 'filterAndReplaceSnapshot()' to keep snapshots
  intact when nothing is to be included
- introduce helper function 'gatherIncludeFilters()' and 'gatherExcludeFilters()' to
  keep code flow clean

cmd/restic/cmd_rewrite_integration_test.go:
add several new tests around the 'include' functionality

internal/filter/include.go:
this is where is include filter is defined

internal/walker/rewriter.go:
- struct RewriteOpts gains field 'KeepEmtpyDirectory', which is a 'NodeKeepEmptyDirectoryFunc()'
  which defaults to nil, so that al subdirectories are kept
- function 'NewSnapshotSizeRewriter()' gains the parameter 'keepEmptyDirecoryFilter' which
  controls the management of empty subdirectories in case of include filters active

internal/data/tree.go:
gains a function Count() for checking the number if node elements in a newly built tree

internal/walker/rewriter_test.go:
function 'NewSnapshotSizeRewriter()' gets an additional parameter nil to keeps things happy

cmd/restic/cmd_repair_snapshots.go:
function 'filterAndReplaceSnapshot()' gets an additional parameter 'keepEmptySnapshot=nil'

doc/045_working_with_repos.rst:
gets to mention include filters

changelog/unreleased/issue-4278:
the usual announcement file

git rebase master -i produced this

restic rewrite include - keep linter happy

cmd/restic/cmd_rewrite_integration_test.go:
linter likes strings.Contain() better than my strings.Index() >= 0
This commit is contained in:
Winfried Plappert
2025-11-21 14:17:41 +00:00
parent 083cdf0675
commit 5148608c39
9 changed files with 343 additions and 30 deletions
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7
doc/045_working_with_repos.rst
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@@ -336,6 +336,13 @@ The options ``--exclude``, ``--exclude-file``, ``--iexclude`` and
``--iexclude-file`` are supported. They behave the same way as for the backup
command, see :ref:`backup-excluding-files` for details.
The options ``--include``, ``--include-file``, ``--iinclude`` and
``--iinclude-file`` are supported as well.
The ``--include`` variants allow you to reduce an existing snapshot or a set of snapshots
to those files that you are really interested in. An example could be all pictures
from a snapshot:
``restic rewrite -r ... --iinclude "*.jpg" --iinclude "*.jpeg" --iinclude "*.png"``.
It is possible to rewrite only a subset of snapshots by filtering them the same
way as for the ``copy`` command, see :ref:`copy-filtering-snapshots`.