feat(_internal): Add copytree_reflink for CoW-optimized directory copying#503
Open
feat(_internal): Add copytree_reflink for CoW-optimized directory copying#503
Conversation
Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #503 +/- ##
==========================================
+ Coverage 53.22% 54.62% +1.40%
==========================================
Files 38 40 +2
Lines 5676 5871 +195
Branches 1063 1077 +14
==========================================
+ Hits 3021 3207 +186
- Misses 2144 2152 +8
- Partials 511 512 +1 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
|
tony
added a commit
that referenced
this pull request
Dec 30, 2025
why: Improve test fixture performance on CoW filesystems (Btrfs, XFS, APFS) by leveraging reflink copying which only copies metadata instead of data. what: - Add copytree_reflink() using cp --reflink=auto with shutil fallback - Add _apply_ignore_patterns() for post-copy cleanup of ignored files
what: - Update git_repo fixture to use copytree_reflink - Update hg_repo fixture to use copytree_reflink - Update svn_repo fixture to use copytree_reflink
what: - Add copytree_reflink scenario tests (simple, ignore, empty) - Add fallback tests for cp failure, not found, OS error - Add integration tests for git-like structure copying
what: - Add docs/internals/copy.md with API reference and usage examples - Add copy to internals toctree - Document reflink benefits and filesystem support
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
copytree_reflinkfunction usingcp --reflink=autofor Copy-on-Write optimizationshutil.copytreeon unsupported filesystemsTest plan