pkg5unittest.py 文件源码

def fakeroot_create():

        test_root = os.path.join(g_tempdir, "ips.test.{0:d}".format(os.getpid()))
        fakeroot = os.path.join(test_root, "fakeroot")
        cmd_path = os.path.join(fakeroot, "pkg")

        try:
                os.stat(cmd_path)
        except OSError as e:
                pass
        else:
                # fakeroot already exists
                raise RuntimeError("The fakeroot shouldn't already exist.\n"
                    "Path is:{0}".format(cmd_path))

        # when creating the fakeroot we want to make sure pkg doesn't
        # touch the real root.
        env_sanitize(cmd_path)

        #
        # When accessing images via the pkg apis those apis will try
        # to access the image containing the command from which the
        # apis were invoked.  Normally when running the test suite the
        # command is run.py in a developers workspace, and that
        # workspace lives in the root image.  But accessing the root
        # image during a test suite run is verboten.  Hence, here we
        # create a temporary image from which we can run the pkg
        # command.
        #

        # create directories
        mkdir_eexist_ok(test_root)
        mkdir_eexist_ok(fakeroot)

        debug("fakeroot image create {0}".format(fakeroot))
        progtrack = pkg.client.progress.NullProgressTracker()
        api_inst = pkg.client.api.image_create(PKG_CLIENT_NAME,
            CLIENT_API_VERSION, fakeroot,
            pkg.client.api.IMG_TYPE_ENTIRE, False,
            progtrack=progtrack, cmdpath=cmd_path)

        #
        # put a copy of the pkg command in our fake root directory.
        # we do this because when recursive linked image commands are
        # run, the pkg interfaces may fork and exec additional copies
        # of pkg(1), and in this case we want them to run the copy of
        # pkg from the fake root.
        #
        fakeroot_cmdpath = os.path.join(fakeroot, "pkg")
        shutil.copy(os.path.join(g_pkg_path, "usr", "bin", "pkg"),
            fakeroot_cmdpath)

        return fakeroot, fakeroot_cmdpath