Module registry 

Adapter auto-detection registry and selection.

Provides detect_adapter() which auto-detects the appropriate VCS adapter for a project, and select_adapter() which resolves a named adapter from configuration with auto-detection fallback.

Resolution order

When an adapter name is given (e.g., adapter = "perforce"):

1. Check built-in adapters: git, svn, perforce, none.
2. Check for an installed plugin via find_vcs_plugin():
   • .ta/plugins/vcs/<name>/plugin.toml
   • ~/.config/ta/plugins/vcs/<name>/plugin.toml
   • ta-submit-<name> on $PATH
3. Warn and fall back to auto-detection.

§15 compliance enforcement

When loading any VCS adapter (built-in or external plugin), the registry validates §15 compliance:

• If an adapter’s protected_submit_targets() is non-empty but verify_not_on_protected_target() is a no-op, a tracing::warn! is emitted.
• External plugins that declare "protected_targets" capability signal full §15 compliance. Plugins without this capability receive a debug notice.

Constants

TA_VERSION

TA version string used in plugin handshakes.

Functions

detect_adapter

Auto-detect the appropriate VCS adapter for the given project root.

detect_adapter_with_config

Auto-detect the appropriate VCS adapter, passing through config (co-author, branch prefix, etc.) to the detected adapter.

enforce_section15

Enforce §15 VCS Submit Invariant on any loaded adapter.

enforce_section15_plugin

Enforce §15 on an external plugin and warn if protected_targets capability is missing.

known_adapters

List all known built-in adapter names.

select_adapter

Select an adapter by name from configuration, with auto-detection fallback.

select_adapter_with_sync

Select an adapter with full configuration including sync settings.