def provides()

in antlir/compiler/items/phases_provide.py [0:0]

• 15 lines of code
• 9 McCabe index (conditional complexity)

    def provides(self):
        for path in gen_subvolume_subtree_provides(self.subvol, Path("/")):
            yield path

        # Note: Here we evaluate if the passwd/group file is available
        # in the subvol to emit users and groups.  If the db files are not
        # available we default to emitting a "root" user/group because that
        # is by default always available.  This is useful for image layers
        # that are not full OS images, but instead a "data only" layer.  The
        # limitation is that "data only" layer files must always be owned by
        # "root:root".
        group_file_path = self.subvol.path(GROUP_FILE_PATH)
        if group_file_path.exists():
            for provide in GroupFile(group_file_path.read_text()).provides():
                yield provide
        else:
            yield ProvidesGroup("root")

        passwd_file_path = self.subvol.path(PASSWD_FILE_PATH)
        if passwd_file_path.exists():
            for provide in PasswdFile(passwd_file_path.read_text()).provides():
                yield provide
        else:
            yield ProvidesUser("root")