Module git 

Decoupled git backend surface used by the pack walker and exec path.

Pack children reference git remotes (url, path, ref — see inst/pack-spec.md §children). The walker needs to clone, fetch, and checkout these remotes; the exec path pins commits. Every one of those callers goes through the GitBackend trait rather than the gix crate directly, so:

• tests can substitute an in-memory mock
• a future IPC or CLI-shell backend can plug in without rewriting callers
• backend-specific error types stay out of the public API (see error::GitError which uses String detail fields)

The default implementation, GixBackend, wraps the pure-Rust gix crate. Auth is the gix default: system SSH keys and anonymous HTTPS. Credential prompting, SSH-agent integration, shallow clones, submodules, and concurrent-fetch coordination are all out of scope for this slice and will land in later M3 slices.

Re-exports

pub use self::error::GitError;

pub use self::gix_backend::GixBackend;

Modules

error

Error taxonomy for the crate::git backend.

gix_backend

GitBackend implementation backed by the gix crate (pure-Rust git).

Structs

BackendLockCtx

Per-call backend-lock context (v1.3.2 B11).

BackendLockCtxOwned

Owned counterpart of BackendLockCtx. Provides a convenient way for tests and callers that don’t otherwise carry a parent-meta + child-path pair to derive one from a flat dest path: parent_meta = dest.parent(), child_path = dest.file_name(). Borrow with BackendLockCtxOwned::as_ctx at the trait-method call site.

ClonedRepo

Result of a successful clone.

Traits

GitBackend

Stable surface for all git operations grex needs.