util.py 文件源码

def find_executable(executable):
    """
    Return the path to the given executable, or None if not found.

    create_environment is used to augment PATH before searching
    for the executable.

    """

    env = create_environment()

    for base in env.get('PATH', '').split(os.pathsep):
        path = os.path.join(os.path.expanduser(base), executable)

        # On Windows, if path does not have an extension, try .exe, .cmd, .bat
        if sublime.platform() == 'windows' and not os.path.splitext(path)[1]:
            for extension in ('.exe', '.cmd', '.bat'):
                path_ext = path + extension

                if can_exec(path_ext):
                    return path_ext
        elif can_exec(path):
            return path

    return None