Module scanner 

Repo scanner host capability.

Deterministic project-wide file enumeration honoring .gitignore and the [extensions::EXCLUDED_DIRS] table, symbol extraction, import-derived dependency graph, reference + churn + importance scoring, source/test pairing, folder aggregates, project metadata (language stats + detected test commands + code-pattern hints), sub-project detection, and a token-budgeted text repo map.

scan_project returns the full result::ScanResult alongside an opaque snapshot_token derived from the canonicalized root path. The result is persisted to <root>/.harn/hostlib/scanner-snapshot.json so that scan_incremental can diff against it later — without forcing the caller to pass the previous result back over the wire.

Structs

DependencyEdge

One edge of the file-level dependency graph.

FileRecord

One file’s metadata + import list.

FolderRecord

One folder’s aggregate metadata.

IncrementalScan

Result returned by scan_incremental.

LanguageStat

Per-language summary.

ProjectMetadata

Project-level metadata.

ScanDelta

Path-delta accompanying a scan_incremental response.

ScanProjectOptions

Tunable knobs accepted by scan_project.

ScanResult

Top-level scanner output.

ScannerCapability

Scanner capability handle.

SubProject

Detected sub-project marker (Cargo.toml, package.json, etc.).

SymbolRecord

One symbol’s metadata.

Enums

SymbolKind

Coarse symbol kinds emitted by the scanner.

Traits

GitCapabilities

Git data needed by the scanner.

Functions

scan_incremental

Refresh the snapshot named by token. If the snapshot is missing, the diff is too large (>30%), or changed_paths is empty after >30% of the workspace mtime-mismatched, falls back to a full rescan.

scan_incremental_with_git

Refresh a snapshot using caller-supplied Git data.

scan_project

Run a full scan of root, persist a snapshot, and return the result.

scan_project_with_git

Run a full scan using caller-supplied Git data.