cargo-brief 0.9.2

Visibility-aware Rust API extractor — pseudo-Rust output for AI agent consumption
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

use std::os::unix::process::CommandExt;
use std::path::PathBuf;
use std::process::Command;

/// Check if a process is alive via kill(pid, 0).
pub(in crate::lsp) fn process_alive(pid: u32) -> bool {
    let Ok(pid) = libc::pid_t::try_from(pid) else {
        return false;
    };
    // SAFETY: kill(pid, 0) with signal 0 only checks process existence.
    unsafe { libc::kill(pid, 0) == 0 }
}

/// Detach a daemon process from the parent's process group.
pub(in crate::lsp) fn configure_daemon_spawn(cmd: &mut Command) {
    cmd.process_group(0);
}

/// Look up a binary on PATH using `which`.
pub(in crate::lsp) fn find_binary_on_path(name: &str) -> Option<PathBuf> {
    let output = Command::new("which").arg(name).output().ok()?;
    if !output.status.success() {
        return None;
    }
    let path = String::from_utf8_lossy(&output.stdout).trim().to_string();
    if path.is_empty() {
        return None;
    }
    Some(PathBuf::from(path))
}