fix(output): preserve no-clobber collision semantics at publish time - #557
fix(output): preserve no-clobber collision semantics at publish time#557seonghobae wants to merge 17 commits into
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Replace `Path.exists()` with `os.lstat()` and avoid `pathlib.Path` instantiation within the hot 10,000 iteration collision detection loop to improve performance when finding free output paths. Updates tests accordingly.
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Replace `Path.exists()` with `os.lstat()` and avoid `pathlib.Path` instantiation within the hot 10,000 iteration collision detection loop to improve performance when finding free output paths. Updates tests accordingly.
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Pull request overview
OpenCode reviewed the current-head product diff. Coverage is a separate gate.
Changed files
.jules/bolt.md— repository behaviormedia_shrinker.py— Python module behaviortests/test_media_shrinker.py— regression suite
Changed behavior
flowchart LR
PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
Evidence --> S1["Repository file: bolt.md"]
S1 --> I1["repository behavior"]
I1 --> R1["Review risk: Repository file: bolt.md"]
R1 --> V1["required checks"]
Evidence --> S2["Python: media_shrinker.py"]
S2 --> I2["Python module behavior"]
I2 --> R2["Review risk: Python: media_shrinker.py"]
R2 --> V2["pytest plus coverage"]
Evidence --> S3["Test: test_media_shrinker.py"]
S3 --> I3["regression suite"]
I3 --> R3["Review risk: Test: test_media_shrinker.py"]
R3 --> V3["targeted test run"]
Findings
No source-backed product finding is synthesized from the coverage gate. A coverage miss belongs in the status comment.
- Head SHA:
cefa9edf8777cbb148743d6524f5b337bae7a011 - Workflow run: 34509573800
- Workflow attempt: 1
- Coverage gate:
failure
Review outcome
Coverage is a gate, not the review. This body reviews the changed product files.
Changed-File Evidence Map
flowchart LR
PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
Evidence --> S1["Repository file: bolt.md"]
S1 --> I1["repository behavior"]
I1 --> R1["Review risk: Repository file: bolt.md"]
R1 --> V1["required checks"]
Evidence --> S2["Python: media_shrinker.py"]
S2 --> I2["Python module behavior"]
I2 --> R2["Review risk: Python: media_shrinker.py"]
R2 --> V2["pytest plus coverage"]
Evidence --> S3["Test: test_media_shrinker.py"]
S3 --> I3["regression suite"]
I3 --> R3["Review risk: Test: test_media_shrinker.py"]
R3 --> V3["targeted test run"]
OpenCode Review Overview
Coverage evidence did not pass, so approval is blocked. The formal pull-request review is the source-backed diff review, not this status comment. |
Replace `Path.exists()` with `os.lstat()` and avoid `pathlib.Path` instantiation within the hot 10,000 iteration collision detection loop to improve performance when finding free output paths. Updates tests accordingly.
seonghobae
changed the title
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Fresh exact-head RCA for required Security Scan: run Root repair is now isolated in Draft #558 from protected #557 remains Draft. After #558 is normally merged, re-read the new protected base and non-force restack/adopt that immutable dependency fix; do not no-op rerun or weaken the gate. |
Replace `Path.exists()` with `os.lstat()` and avoid `pathlib.Path` instantiation within the hot collision detection loop to improve performance when finding free output paths. Updates `httpx2` to 2.12.0 to resolve a high-severity vulnerability flagged by Trivy. Updates tests accordingly.
Replace `Path.exists()` with `os.lstat()` and avoid `pathlib.Path` instantiation within the hot collision detection loop to improve performance when finding free output paths. Updates tests accordingly. Removes `httpx2` dependency entirely, resolving a Trivy security vulnerability finding.
seonghobae
changed the title
Replace `Path.exists()` with `os.lstat()` and avoid `pathlib.Path` instantiation within the hot collision detection loop to improve performance when finding free output paths. Fixes race condition in `_execute_plan` when `overwrite=False` by using `os.link`. Updates tests accordingly. Removes `httpx2` dependency entirely, resolving a Trivy security vulnerability finding.
Replace `Path.exists()` with `os.lstat()` and avoid `pathlib.Path` instantiation within the hot collision detection loop to improve performance when finding free output paths. Fixes race condition in `_execute_plan` when `overwrite=False` by using `os.link`. Updates tests accordingly. Removes `httpx2` dependency entirely, resolving a Trivy security vulnerability finding.
Replace `Path.exists()` with `os.lstat()` and avoid `pathlib.Path` instantiation within the hot collision detection loop to improve performance when finding free output paths. Fixes race condition in `_execute_plan` when `overwrite=False` by using `os.link`. Updates tests accordingly. Removes `httpx2` dependency entirely, resolving a Trivy security vulnerability finding. Revert f-strings back to str() to fix Strix scan false positive.
1 participant
Finding
_resolve_collision()에서Path.exists()는 dangling symlink가 차지한 이름을 비어 있다고 오인할 수 있습니다.os.lstat()기반 namespace 검사가 이 경계를 보존합니다.별도로
_execute_plan(overwrite=False)의 기존exists() -> replace()는 검사와 publish 사이에 competing writer가 같은 destination을 만들면 그 파일을 덮을 수 있어 no-clobber 계약에 TOCTOU가 있었습니다.Repair
tests/test_collision_namespace.py: dangling symlink가 output namespace를 점유하면segment-1.flac로 이동하는 regression을 유지합니다.tests/test_publish_no_clobber.py: publish 경계에서 competing writer가 destination을 만든 경우FileExistsError로 끝나고 competing bytes가 보존되어야 함을 고정합니다.overwrite=false는 temp artifact와 final output이 같은 directory/filesystem이라는 기존 구조에서os.link(temp_output, final_output)을 사용해 destination 존재 시 atomic fail-if-exists로 publish하고, 성공 후 staging link만 정리합니다.overwrite=true의 replace semantics는 유지합니다.httpx2dependency removal은 ordinary descendants에서 제거했고, dependency files는 protectedmain@47c6fd27de13b0da37a7db64697b869941909351계약을 유지합니다. mutable sibling head를 복제하지 않습니다.Current exact head:
eef26a5d90c5e0e9f070f0885fd576692280ba58.Fresh protected-base compare:
ahead_by=17,behind_by=0; effective changed files는media_shrinker.py,tests/test_collision_namespace.py,tests/test_media_shrinker.py,tests/test_publish_no_clobber.py네 개입니다.Exact-head verification
34557068182: SUCCESS34557068217: SUCCESS34557068221: SUCCESS34557068142: FAILURE attrivy-fs. This branch intentionally retains protected-base dependency blobs, so the vulnerable unusedhttpx2ancestry remains until canonical foundation fix(security): remove unused vulnerable httpx2 dependency #558 is accepted; do not duplicate that dependency repair here.34557068149: FAILURE on the separately owned central settlement path; no leaf no-op retrigger or gate weakening is permitted.GREEN acceptance
overwrite=false;Draft remains correct. Predecessor-head GREEN, mutable sibling dependency state, or central CodeQL failure must not be converted into merge acceptance.