60 lines
1.8 KiB
Python
60 lines
1.8 KiB
Python
from abc import ABC, abstractmethod
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import logging
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logger = logging.getLogger(__name__)
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class ConfigMigrator(ABC):
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@abstractmethod
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def migrate(self, config):
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pass
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def renameKey(self, config, old, new):
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if old in config and new not in config:
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config[new] = config[old]
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del config[old]
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class ConfigMigratorVersion1(ConfigMigrator):
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def migrate(self, config):
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if "receiver_gps" in config:
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gps = config["receiver_gps"]
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config["receiver_gps"] = {"lat": gps[0], "lon": gps[1]}
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if "waterfall_auto_level_margin" in config:
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levels = config["waterfall_auto_level_margin"]
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config["waterfall_auto_level_margin"] = {"min": levels[0], "max": levels[1]}
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self.renameKey(config, "wsjt_queue_workers", "decoding_queue_workers")
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self.renameKey(config, "wsjt_queue_length", "decoding_queue_length")
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config["version"] = 2
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class ConfigMigratorVersion2(ConfigMigrator):
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def migrate(self, config):
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if "waterfall_colors" in config and any(v > 0xFFFFFF for v in config["waterfall_colors"]):
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config["waterfall_colors"] = [v >> 8 for v in config["waterfall_colors"]]
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config["version"] = 3
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class Migrator(object):
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currentVersion = 3
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migrators = {
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1: ConfigMigratorVersion1(),
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2: ConfigMigratorVersion2(),
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}
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@staticmethod
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def migrate(config):
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version = config["version"] if "version" in config else 1
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if version == Migrator.currentVersion:
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return config
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logger.debug("migrating config from version %i", version)
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migrators = [Migrator.migrators[i] for i in range(version, Migrator.currentVersion)]
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for migrator in migrators:
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migrator.migrate(config)
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