Cura/plugins/VersionUpgrade/VersionUpgrade41to42/VersionUpgrade41to42.py
2019-06-03 11:49:03 +02:00

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1.7 KiB
Python

## Upgrades configurations from the state they were in at version 4.1 to the
# state they should be in at version 4.2.
import configparser
import io
from typing import Tuple, List
from UM.VersionUpgrade import VersionUpgrade
class VersionUpgrade41to42(VersionUpgrade):
def getCfgVersion(self, serialised: str) -> int:
parser = configparser.ConfigParser(interpolation = None)
parser.read_string(serialised)
format_version = int(parser.get("general", "version")) #Explicitly give an exception when this fails. That means that the file format is not recognised.
setting_version = int(parser.get("metadata", "setting_version", fallback = "0"))
return format_version * 1000000 + setting_version
## Upgrades stacks to have the new version number.
def upgradeStack(self, serialized: str, filename: str) -> Tuple[List[str], List[str]]:
parser = configparser.ConfigParser(interpolation=None)
parser.read_string(serialized)
# We should only have 6 levels when we start.
assert "7" not in parser["containers"]
# Update version number.
parser["general"]["version"] = "5"
# We added the intent container in Cura 4.2. This means that all other containers move one step down.
parser["containers"]["7"] = parser["containers"]["6"]
parser["containers"]["6"] = parser["containers"]["5"]
parser["containers"]["5"] = parser["containers"]["4"]
parser["containers"]["4"] = parser["containers"]["3"]
parser["containers"]["3"] = parser["containers"]["2"]
parser["containers"]["2"] = "empty_intent"
result = io.StringIO()
parser.write(result)
return [filename], [result.getvalue()]