Struct ShellSpec 

pub struct ShellSpec {
    pub detect_program: bool,
    pub login_arg: bool,
    pub login_path_probe: bool,
}

A harness’s shell invocation shape (plan-finalization Q5, 2026-07-21): the choice rides the request; execution stays behind the host door. Grok’s shape is { detect_program: true, login_arg: false, login_path_probe: true }.

Fields

detect_program: bool

Use the user’s $SHELL when its basename is bash or zsh (grok’s detection); otherwise fall back to the host’s configured program.

login_arg: bool

true = -lc (login), false = -c (grok always uses -c).

login_path_probe: bool

Inject the login shell’s PATH (probed once per host, cached) so non-login -c children still see user PATH entries (grok’s probe).

Trait Implementations

impl Clone for ShellSpec

fn clone(&self) -> ShellSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ShellSpec

impl Debug for ShellSpec

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

Formats the value using the given formatter.

impl Default for ShellSpec

fn default() -> ShellSpec

Returns the “default value” for a type.