Crate mbx_cache_cargo 

Cargo invocation resolution shared by mbx and embedded cache clients.

This crate is intentionally unstable while the first embedders converge. Breaking changes are made in a new pre-1.0 minor release.

Structs

CargoInvocation

Cargo-resolved roots and the stable prediction-manifest identity for one invocation.

Enums

ProbeFailure

Why Cargo could not report the storage roots for an invocation.

Functions

build_identity

Derive the prediction-manifest identity used by mbx for a Cargo command.

cache_root

Resolve the shared mbx cache root from the environment, machine config, or platform default.

is_builtin_command

Whether command is one of Cargo’s own subcommands, which Cargo parses the rest of the command line for, as opposed to an alias or an external command.

is_remote_install

Whether the arguments install a package from a registry or Git repository.

manifest_in_scope

Whether Cargo has a manifest to work from here.

previous_build_identities

The identities recorded for earlier states of this workspace’s Cargo.lock, newest first.

remote_install_name

A directory name for the package a remote install builds, stable across repeated installs of it, so their prediction manifest is found again. The install root, features, and other options do not enter it: predictions are verified before they are trusted, so sharing one only costs a miss.

remote_install_target_dir

The target directory a remote install was explicitly given, by --target-dir or CARGO_TARGET_DIR. Without one Cargo builds in a directory it creates and deletes, which no cache key can name.

resolve

Resolve one Cargo invocation exactly enough for a cache session.

resolve_reported

Resolve one Cargo invocation only when Cargo successfully reports its roots.

try_resolve_reported

Resolve Cargo’s reported roots, preserving the reason a metadata probe failed.