validate_single_assembly.py 文件源码

def process(self, instance):
        from maya import cmds
        from avalon import maya

        with maya.maintained_selection():
            cmds.select(instance, replace=True)
            nodes = cmds.file(
                constructionHistory=True,
                exportSelected=True,
                preview=True,
                force=True,
            )

        self.assemblies[:] = cmds.ls(nodes, assemblies=True)

        if not self.assemblies:
            raise Exception("No assembly found.")

        if len(self.assemblies) != 1:
            self.assemblies = '"%s"' % '", "'.join(self.assemblies)
            raise Exception(
                "Multiple assemblies found: %s" % self.assemblies
            )