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fix(oci): preserve paths for reused tool layers - #12749
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Repository YAML (base), Central YAML (inherited), Organization UI (inherited) Review profile: CHILL Plan: Team Run ID: 📒 Files selected for processing (2)
🚧 Files skipped from review as they are similar to previous changes (2)
Included review availability: Your plan provides up to 10 included reviews per hour; 8 remain after this review. 📝 WalkthroughWalkthroughOCI remote images now expose parsed configuration JSON. Cached PATH extraction rejects entries with parent-directory components. Layer-reuse tests verify that the reused image preserves the original non-empty PATH value. ChangesOCI PATH reuse
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: ⚪ Minimal · up to OCI cached layer reuse now recovers valid tool PATH entries from the cached image configuration while retaining existing fallback behavior. Current merge-readiness risk is minimal. Poem
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 66.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 9 functions across 2 files. (1 skipped: 1 unsupported.)
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Greptile SummaryThe PR preserves OCI cache-image configuration and restores PATH entries belonging to reused tool layers.
Confidence Score: 5/5The PR appears safe to merge. No blocking failure remains. Important Files Changed
Reviews (2): Last reviewed commit: "fix(oci): harden cached path restoration" | Re-trigger Greptile |
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Inline comments:
In `@e2e/oci/test_oci_push_layer_reuse`:
- Around line 70-71: Update the PATH checks in the OCI layer reuse test to first
assert that the first image’s jq-derived PATH value is non-empty, then retain
the existing comparison against the second image’s value to verify reuse.
In `@src/oci/builder.rs`:
- Around line 1318-1322: Update the cached PATH entry filter around the visible
tool_root prefix check to reject any path containing parent-directory components
before accepting it, while preserving the exact-root and descendant checks for
safe entries. Add a regression test covering a lexical descendant containing
“..” that normalizes outside tool_root and verify it is excluded from the
generated PATH.
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ℹ️ Review info
⚙️ Run configuration
Configuration used: Repository YAML (base), Central YAML (inherited), Organization UI (inherited)
Review profile: CHILL
Plan: Team
Run ID: a3efe54e-f68d-4306-a47f-ffb27bc9143f
📒 Files selected for processing (3)
e2e/oci/test_oci_push_layer_reusesrc/oci/builder.rssrc/oci/registry.rs
Included review availability: Your plan provides up to 10 included reviews per hour; 9 remain after this review.
Summary
Context
When
mise oci push --cache-fromreused a tool layer after that tool was uninstalled locally,list_bin_pathscould return no paths. OCI image generation then fell back to<install>/bin, even when the reused layer stored its executable directly in the install root.This uses the cache image config that originally described the reused layer, scoped to the layer's exact in-image install prefix. It works with existing cache images and leaves the existing fallback in place when cached PATH metadata is unavailable.
Fixes the PATH failure reported in #12747. Backend-specific
exec_envderivation remains covered by the existing documented caveat and is outside this focused fix.Verification
mise run test:unit -- oci::builder::tests::cached_path_entries_are_scoped_to_the_reused_toolmise run test:e2e e2e/oci/test_oci_push_layer_reusemise run lint-fixAI-assisted — Tool: Codex; model: OpenAI/GPT-5; version: unavailable.
Note
Medium Risk
Changes OCI image
PATHassembly for reused layers; behavior is scoped with fallback to existing logic, but incorrect PATH scoping could break containers that rely on non-standard tool layouts.Overview
When
mise oci pushreuses a tool layer from a prior image (same tag or--cache-from) and the tool is no longer installed locally, imagePATHwas rebuilt vialist_bin_paths, which often returned nothing and fell back to<install>/bineven when the cached layer used a different layout (e.g. binary in the install root).The change keeps the full remote image config on
RemoteImageand, for each reused tool, pulls that tool’s PATH segments from the cache image’sPATH=env, scoped to the tool’s in-image install prefix (excluding..paths). Locallist_bin_pathsstill runs when reuse metadata is missing or cached PATH can’t be recovered.E2E layer-reuse tests now assert
PATHmatches acrossv1andv2after reuse; a unit test covers scoping across multiple tools in onePATH.Reviewed by Cursor Bugbot for commit 900f909. Bugbot is set up for automated code reviews on this repo. Configure here.
Summary by CodeRabbit
Bug Fixes
PATHenvironment value from cached images.Tests