shelly-shell 0.5.0

A Rust based Unix style shell with a typed and structured language syntax.
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# A completed child still owns an unreaped PID when group cleanup runs.
# On macOS a group containing only zombies reports EPERM from kill(-pgid).
for $attempt in 0..8
{
    for $code in [0, 7]
    {
        let $result = run_process [`$shelly, "-m", "-c", "exit $code"] ["timeout_ms": 1000]
        require ($result["exit_code"] == $code) "completed child lost its exit code"
        require ($result["signal"] == ()) "completed child became signal termination"
        require (!$result["timed_out"]) "completed child timed out"
        require ($result["error"] == ()) "completed child cleanup failed"
    }
}

# Cover the same cleanup path through a PTY, including repeated close after reap.
let $terminal = open_terminal [`$shelly, "-m", "-c", "exit 7"] [:]
let $eof = false
for $attempt in 0..50
{
    let $reply = terminal_read $terminal 100
    if $reply["eof"] { $eof = true; break }
}
require $eof "completed terminal child did not reach EOF"
let $result = terminal_close $terminal
require ($result["exit_code"] == 7) "terminal cleanup lost its exit code"
require ($result["error"] == ()) "completed terminal cleanup failed"
require ((terminal_close $terminal) == $result) "repeated terminal close changed status"