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Stop configuration discovery at Git worktree boundaries - #2654
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Copilot review overview
🟢 Approval recommended
The focused implementation matches the stated behavior and is covered by relevant regression and control tests.
Review effort: Balanced
Findings: None
What changed in this PR
Stops configuration discovery at Git worktree boundaries while preserving local configuration precedence and Mercurial behavior.
Changes:
- Recognizes
.gitfiles as repository boundaries. - Adds regression and control tests for boundary discovery.
- Updates configuration discovery documentation.
| File | Description |
|---|---|
isort/settings.py |
Stops discovery at .git files or directories. |
tests/unit/test_settings.py |
Tests Git worktrees, configuration precedence, and Mercurial behavior. |
docs/configuration/config_files.md |
Documents supported repository boundary markers. |
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #2654 +/- ##
=======================================
Coverage 99.37% 99.37%
=======================================
Files 41 41
Lines 3181 3182 +1
Branches 686 686
=======================================
+ Hits 3161 3162 +1
Misses 12 12
Partials 8 8 🚀 New features to boost your workflow:
|
DanielNoord
approved these changes
Sep 21, 2026
DanielNoord
enabled auto-merge
September 21, 2026 15:15
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When a Git worktree has no local isort configuration, its
.gitfile is ignored during configuration discovery. An outer.isort.cfgcan then be inherited, changing the source paths and classifying a local module as third party. Stop discovery at.gitfiles as well as directories, while retaining local config precedence and the existing Mercurial boundary behavior.Addresses the reproduced outer-configuration case of #2068. This does not establish the cause of every worktree classification problem in that report.
Validation on Windows with Python 3.12:
os.mkfifotyping, the existing CRLF formatting fixture, and Bandit's assertion finding inparse.py:407.Other Python/OS runtimes, mypyc builds and the network-cloning integration suite were not run.
AI disclosure: developed and independently reviewed by Codex agents on behalf of vzer200; no human line-by-line review is claimed.