Introduces directory-level locking to prevent concurrent index operations from corrupting shared directories, along with explicit APIs for acquiring, probing, and releasing locks. Restructures the index cache crate to use a layered store architecture that eagerly initializes metadata and provides fast hierarchical lookups. Updates dependent modules, test suites, and CLI commands to align with the refactored API surface, and adds an end-to-end smoke test for validation.
This commit partitions the obikindex crate into multiple focused subcrates (obikfilter, obikmerge, obikquery, obikrebuild, obikselect, obikstats, obikdump, and obikidxcache) to reduce coupling and clarify module boundaries. It standardizes error handling across the workspace using OKIError and OKIResult, updates index APIs to support lazy, disk-backed partition access, and migrates NUMA system utilities to a new obisys crate. All modifications are structural, focusing on dependency graph expansion, import path updates, and API surface reorganization without altering core runtime behavior.
Eric Coissac