Module adapter 

Adapter module — maps component IDs to executors (Rust or legacy shell script).

This module provides:

• AdapterRegistry — maps component IDs to executors (Rust or legacy shell script)
• [RustAdapter] — routes to native Rust implementations (no shell subprocess)
• [LegacyAdapter] — invokes shell scripts with correct argument forwarding
• AdapterError — structured errors for unknown components and execution failures

Design

The adapter layer is the migration bridge between Rust-native implementations and legacy shell scripts. For each component ID, the registry determines whether to use a Rust executor (fast, no subprocess) or fall back to the legacy shell script (backward compatible).

component_id → AdapterRegistry → RustAdapter (native)
                               → LegacyAdapter (shell script)
                               → Err(AdapterNotFound)

Validation Assertions

• VAL-MIGR-009: Rust-registered adapter routes to Rust impl, no shell subprocess
• VAL-MIGR-010: No Rust adapter → falls back to install_*.sh with correct args
• VAL-MIGR-011: Unknown component ID returns Err(AdapterNotFound)
• VAL-MIGR-012: Output format matches shell for migrated components
• VAL-MIGR-013: Exit codes match shell for success/failure/partial cases

Modules

legacy_adapter

Legacy adapter — invokes shell scripts with correct argument forwarding.

rust_adapter

Rust-native adapter — executes component operations without spawning shell subprocesses.

Structs

AdapterOutput

Result of executing a component adapter.

AdapterRef

Reference to an adapter returned by the registry.

AdapterRegistry

Registry that maps component IDs to their executor adapters.

RegistryExecutor

An ApplyExecutor that delegates to the AdapterRegistry.

Enums

AdapterError

Errors produced by the adapter layer.

Traits

Adapter

Trait for component adapters.