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67 lines
2.7 KiB
Python
67 lines
2.7 KiB
Python
# Copyright (c) 2019 Ultimaker B.V.
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# Cura is released under the terms of the LGPLv3 or higher.
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import configparser
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import io
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from typing import Dict, List, Tuple
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from UM.VersionUpgrade import VersionUpgrade
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_renamed_settings = {
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"support_minimal_diameter": "support_tower_maximum_supported_diameter"
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} #type: Dict[str, str]
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## Upgrades configurations from the state they were in at version 4.1 to the
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# state they should be in at version 4.2.
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class VersionUpgrade41to42(VersionUpgrade):
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## Gets the version number from a CFG file in Uranium's 4.1 format.
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#
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# Since the format may change, this is implemented for the 4.1 format only
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# and needs to be included in the version upgrade system rather than
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# globally in Uranium.
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#
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# \param serialised The serialised form of a CFG file.
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# \return The version number stored in the CFG file.
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# \raises ValueError The format of the version number in the file is
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# incorrect.
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# \raises KeyError The format of the file is incorrect.
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def getCfgVersion(self, serialised: str) -> int:
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parser = configparser.ConfigParser(interpolation = None)
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parser.read_string(serialised)
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format_version = int(parser.get("general", "version")) #Explicitly give an exception when this fails. That means that the file format is not recognised.
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setting_version = int(parser.get("metadata", "setting_version", fallback = "0"))
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return format_version * 1000000 + setting_version
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## Upgrades instance containers to have the new version
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# number.
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def upgradeInstanceContainer(self, serialized: str, filename: str) -> Tuple[List[str], List[str]]:
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parser = configparser.ConfigParser(interpolation = None)
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parser.read_string(serialized)
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# Update version number.
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parser["general"]["version"] = "4"
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parser["metadata"]["setting_version"] = "8"
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#Rename settings.
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if "values" in parser:
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for old_name, new_name in _renamed_settings.items():
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if old_name in parser["values"]:
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parser[new_name] = parser[old_name]
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del parser[old_name]
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result = io.StringIO()
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parser.write(result)
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return [filename], [result.getvalue()]
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## Upgrades stacks to have the new version number.
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def upgradeStack(self, serialized: str, filename: str) -> Tuple[List[str], List[str]]:
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parser = configparser.ConfigParser(interpolation = None)
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parser.read_string(serialized)
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# Update version number.
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parser["general"]["version"] = "4"
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parser["metadata"]["setting_version"] = "8"
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result = io.StringIO()
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parser.write(result)
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return [filename], [result.getvalue()]
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