def getOldData(oldPath, oldTag, currentVersionStr, oldName=None):
import os
from memops.universal import Io as uniIo
from memops.metamodel.Util import topologicalSortSubgraph
# find old implementation top directory and change temporarily to it.
currentTopDir = uniIo.getTopDirectory()
ss1, lastdir = os.path.split(currentTopDir)
ss2, newTag = os.path.split(ss1)
prevTopDir = os.path.join(ss2, oldTag, lastdir)
uniIo.setTopDirectory(prevTopDir)
# NB these things are put inside the function to avoid problems with
# the uniIo.setTopDirectory approach
def getCurrentVersionStr():
""" Encapsulated to get import out of main. Hoping to fix import problem.
"""
from memops.general.Constants import currentModelVersion
return str(currentModelVersion)
def downlinkTagsByImport(root, sorter=topologicalSortSubgraph):
""" downlink tags from MemopsRoot object for leafPackages in import order
This is the post-v2.0 version
"""
leafPackages = []
packages = [root.metaclass.container.topPackage()]
for pp in packages:
childPackages = pp.containedPackages
if childPackages:
packages.extend(childPackages)
else:
leafPackages.append(pp)
# sort leafPackages by import (imported before importing)
leafPackages = sorter(leafPackages, 'accessedPackages')
tags = []
for pp in leafPackages:
cc = pp.topObjectClass
if cc is not None:
pr = cc.parentRole
if pr is not None:
tags.append(pr.otherRole.name)
#
return tags
try:
# get old version as string
oldVersionStr = getCurrentVersionStr()
from memops.general import Io as oldIo
# post-version-2 behaviour - get repository dir and project name
if oldName is None:
head, tail = os.path.split(oldPath)
oldName = os.path.splitext(tail)[0]
oldPath = os.path.dirname(os.path.dirname(head))
# get root Object and force load all contents
oldRoot = oldIo.loadProject(oldPath, projectName=oldName)
if oldVersionStr != currentVersionStr:
# We do have to convert - force load all TopObjects
tags = downlinkTagsByImport(oldRoot)
for tag in tags:
for topObj in getattr(oldRoot, tag):
if not topObj.isLoaded:
topObj.load()
finally:
# set path back to current
uniIo.setTopDirectory(currentTopDir)
return (oldRoot, oldVersionStr, tags)
