Struct ToolAvailability 

pub struct ToolAvailability {
    pub zigbuild: bool,
    pub musl_cross: bool,
}

Which host-native toolchains are present on this runner (R531-F5).

The availability-aware half of the decision table: select_cross_tool prefers zigbuild but falls back to musl-cross for musl targets when zig isn’t installed. Build it from a real probe (Self::probe) at runtime, or by hand in tests so the fallback ladder is specified.

Fields

zigbuild: bool

cargo zigbuild resolves (cargo-zigbuild + zig installed).

musl_cross: bool

A <arch>-linux-musl-gcc cross toolchain is on PATH.

Implementations

impl ToolAvailability

pub const FULL: ToolAvailability

Assume the full happy path — both toolchains present. Useful as a planning default and in tests that don’t exercise the fallback.

pub const NONE: ToolAvailability

Nothing host-native installed — every cross target errors with an install hint. The empty end of the table.

pub fn probe() -> ToolAvailability

Probe the host: run each tool’s --version and record whether it exits cleanly. The single impure entry point (shell seam); the rest of the module is pure over the result.

Trait Implementations

impl Clone for ToolAvailability

fn clone(&self) -> ToolAvailability

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ToolAvailability

impl Debug for ToolAvailability

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ToolAvailability

impl PartialEq for ToolAvailability

fn eq(&self, other: &ToolAvailability) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ToolAvailability