Python Command.safe_run示例

示例#1

文件： new_packages.py 项目： wojciechkepka/scripts

def list_installed():
    cmd = Command("pacman", ["-Qe"], opts=ExecOpts(display=False))
    cmd.safe_run()
    if cmd.stdout:
        return [line.split(" ")[0] for line in cmd.stdout.split("\n")]
    else:
        return []

示例#2

文件： exodus.py 项目： wojciechkepka/scripts

def lvm_size(vg: str, lv: str, opts: ExecOpts = DEFAULT_OPTS) -> int:
    """Returns size in bytes of a given logical volume"""
    cmd = Command(
        "lvs",
        [
            f"{vg}/{lv}", "-o", "LV_SIZE", "--noheadings", "--units", "B",
            "--nosuffix"
        ],
        opts=opts,
    )
    cmd.safe_run()
    if cmd.exit_code == 0 and cmd.stdout:
        return int(cmd.stdout.strip())

    return 0