INNER CODE UNIT · Python

capture_help

toyota-connected/ivi-homescreen · scripts/gen_config_reference.py:358

def capture_help():
    # The binary's --help is the source of truth for the CLI. Returns a fenced
    # code block, or None if no binary is available (skip, don't fail).
    for b in (ROOT / "cmake-build-debug/shell/homescreen",
              ROOT / "build/shell/homescreen"):
        if not b.exists():
            continue
        try:
            r = subprocess.run([str(b), "--help"], capture_output=True,
                               text=True, timeout=15)
        except Exception:
            return None
        # --help is program output on stdout; stderr carries startup log lines
        # (e.g. the DLT/sink bring-up warnings) that are not part of the CLI
        # reference, so capture stdout only.
        text = r.stdout or ""
        i = text.find("Usage:")
        if i >= 0:

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