Struct CliBackend 

pub struct CliBackend { /* private fields */ }

The real backend: finds the binary once, then spawns it per call.

Implementations

impl CliBackend

pub fn discover() -> Result<Self, ExecError>

Find the binary and build a backend around it.

Order: the explicit override, then the search path, then the shim the macOS applications install, and last the executable inside the application bundle. The override is first because an operator who names a path means it — if it is wrong, that is an error rather than a quiet fallback to some other Tailscale on the machine. The bundle is last because it is the only candidate that can be present and not be a command-line interface; bundle_candidates says why.

pub fn discover_with(override_path: Option<&OsStr>) -> Result<Self, ExecError>

Self::discover, with the override supplied rather than read from the environment, so a test can drive every branch.

pub fn at(binary: impl Into<PathBuf>) -> Self

A backend over a known binary. The stub-binary tests use this.

pub fn binary(&self) -> &Path

Trait Implementations

impl Debug for CliBackend

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

Formats the value using the given formatter.

impl LocalBackend for CliBackend

fn run<'a>( &'a self, invocation: Invocation, ) -> BoxFuture<'a, Result<Output, ExecError>>