[bug-fix] Fix reinstall-overwrites-kept-config: preserve config on plain reinstall after --keep-config#3449
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Pull request overview
Fixes extension config loss when reinstalling after remove --keep-config.
Changes:
- Rescues and restores preserved extension configuration files.
- Adds regression tests for standard and local configs.
Show a summary per file
| File | Description |
|---|---|
src/specify_cli/extensions/__init__.py |
Adds preserved-config rescue and restoration. |
tests/test_extensions.py |
Adds reinstall config-preservation tests. |
Review details
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- Files reviewed: 2/2 changed files
- Comments generated: 3
- Review effort level: Medium
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Address three review findings on the reinstall config-rescue path: - A complete .rescue-complete marker proves only that staging finished, not that dest_dir was modified. A crash after staging sync but before the rmtree leaves the live kept config intact; if the user edits it before retrying, preferring the staged bytes silently overwrote the newer config. The two copies are indistinguishable in provenance from disk, so detect divergence between a complete staging copy and the live config and abort (preserving both) instead of unconditionally choosing staging. - The staging directory embedded the full extension ID in one path component. Extension IDs are length-unbounded, so a valid long ID could install at dest_dir yet fail every reinstall-after-keep-config with ENAMETOOLONG. Derive the staging component from a fixed-length hash via a new _rescue_staging_dir() helper. - The stranded-config restore used the full config filename as a NamedTemporaryFile prefix; a name already near the component limit plus the random suffix raised ENAMETOOLONG. Use a short fixed prefix. Updates the retry regression test to the new divergence semantics and adds conflict-abort, long-ID, and fixed-prefix coverage. Assisted-by: GitHub Copilot (model: Claude Opus 4.8, autonomous) Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
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…ew feedback - _recognized_config_names() now accepts follow_symlinks=False for live dir so symlinked *-config.yml entries are detected and treated as conflicts rather than being silently deleted by rmtree. - Add explanatory comment to bare 'except OSError: pass' in _restore_stranded_config_file's finally block. - Resolve CodeQL dual-import style: use 'from specify_cli import extensions as _ext_module' instead of 'import specify_cli.extensions as _ext_module'. Assisted-by: GitHub Copilot (model: claude-sonnet-4, autonomous)
Add test_staging_failure_aborts_before_dest_dir_removal covering three failure modes (mkdir, os.open/O_CREAT, fsync with EIO) in the rescue staging block. Each parametrized case verifies: - the install aborts before dest_dir is removed - the preserved config bytes remain authoritative - any partial staging is cleaned up and not left as complete - the extension stays unregistered Addresses review feedback on PRRT_kwDOPiFCnc6R351t. Assisted-by: GitHub Copilot (model: claude-sonnet-4.5, autonomous)
Exercises the retry-from-staging branch (if staging_is_complete at line 1505 of extensions/__init__.py) in a scenario where the live config is absent — simulating a power loss that interrupted the rollback before it could write the config back. When the live copy is gone, the live-dir fallback (elif dest_dir.exists()) finds no stranded configs and the packaged default would be kept. Only the staging-complete branch can restore the original bytes and mode. This proves staging (not the fallback) is used on retry. Addresses review feedback on PRRT_kwDOPiFCnc6SAL3L. Assisted-by: GitHub Copilot (model: claude-sonnet-4.5, autonomous)
… fix live-only conflict message
Thread 64: Remove os.fchmod/chmod from staged files to avoid Windows
read-only attribute that prevents shutil.rmtree from cleaning up.
Original permission bits are now written to a .rescue-modes.json sidecar
in the staging dir and reloaded during retry, with a fall-back to the
staged file's own mode for backwards-compat with pre-sidecar staging dirs.
Thread 65: Split the ValidationError message for staging-vs-live conflicts
into two accurate cases: files that diverged between both locations
("Both copies have been preserved") and live-only files that have no
backup counterpart, which previously incorrectly claimed "Both copies
have been preserved" and offered a restore instruction that was impossible.
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| " then reinstall." | ||
| ) | ||
| raise ValidationError(" ".join(msg_parts)) | ||
| elif dest_dir.exists() and not self.registry.is_installed(manifest.id): |
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Bug fix — reinstall-overwrites-kept-config
Proposed fix for issue #3427, applying the remediation from the bug assessment.
Verdict: Valid · Severity: medium
Summary
When
specify extension remove <ext> --keep-configis used, the extension is unregistered but its*-config.ymlfiles survive in the extension directory. A subsequent plainspecify extension add <ext>unconditionally deleted that directory before copying the fresh extension in, silently discarding the preserved config. The fix rescues those stranded config files into memory before thermtreeand writes them back aftercopytree, so user-customized values always win over the packaged defaults.Changes
src/specify_cli/extensions/__init__.pyrmtree(dest_dir), collect any*-config.yml/*-config.local.ymlfiles from an unregistereddest_dirinto memory; restore them aftercopytreetests/test_extensions.pytest_reinstall_after_keep_config_preserves_configandtest_reinstall_after_keep_config_preserves_local_configTests Added or Updated
tests/test_extensions.py::TestInstallFromDirectory::test_reinstall_after_keep_config_preserves_config— pins that a customized*-config.ymlsurvives aremove --keep-config→ plain reinstall cycletests/test_extensions.py::TestInstallFromDirectory::test_reinstall_after_keep_config_preserves_local_config— same for*-config.local.ymloverride filesLocal Verification
--forcereinstall path, applying it to the previously-unhandled "unregistered but config-bearing directory" case.Deviations from Assessment
None. The implementation follows the preferred remediation exactly as described.
Risks & Review Notes
not self.registry.is_installed(manifest.id)guard ensures we only rescue configs when the extension is genuinely unregistered, avoiding picking up stale files from a different install.shutil.copytree, so packaged defaults are always superseded by the user's values — no risk of defaults silently winning.install_from_zip()delegates toinstall_from_directory(), so it is covered without additional changes.install_from_directory().Refs #3427 · cc
@grafvonbremove --keep-config#3427