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Catch Exceptions when settings.json is corrupted (#7553)

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* added a json exception catch statement as a fail safe to create a fresh configuration file when settings is corrupted

* change formatting

* add issue link

* add extra info in the comment
This commit is contained in:
Alekhya
2020-10-26 11:13:53 -07:00
committed by GitHub
parent 39ebd82e20
commit e411e6dc75
1 changed files with 23 additions and 14 deletions
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37
src/core/Microsoft.PowerToys.Settings.UI.Library/SettingsUtils.cs
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@@ -70,24 +70,33 @@ namespace Microsoft.PowerToys.Settings.UI.Library
{ {
if (SettingsExists(powertoy, fileName)) if (SettingsExists(powertoy, fileName))
{ {
// Given the file already exists, to deserialize the file and read it's content. try
T deserializedSettings = GetFile<T>(powertoy, fileName);
// IF the file needs to be modified, to save the new configurations accordingly.
if (deserializedSettings.UpgradeSettingsConfiguration())
{ {
SaveSettings(deserializedSettings.ToJsonString(), powertoy, fileName); // Given the file already exists, to deserialize the file and read it's content.
T deserializedSettings = GetFile<T>(powertoy, fileName);
// If the file needs to be modified, to save the new configurations accordingly.
if (deserializedSettings.UpgradeSettingsConfiguration())
{
SaveSettings(deserializedSettings.ToJsonString(), powertoy, fileName);
}
return deserializedSettings;
} }
return deserializedSettings; // Catch json deserialization exceptions when the file is corrupt and has an invalid json.
} // If there are any deserialization issues like in https://github.com/microsoft/PowerToys/issues/7500, log the error and create a new settings.json file.
else // This is different from the case where we have trailing zeros following a valid json file, which we have handled by trimming the trailing zeros.
{ catch (JsonException ex)
// If the settings file does not exist, to create a new object with default parameters and save it to a newly created settings file. {
T newSettingsItem = new T(); Logger.LogError($"Exception encountered while loading {powertoy} settings.", ex);
SaveSettings(newSettingsItem.ToJsonString(), powertoy, fileName); }
return newSettingsItem;
} }
// If the settings file does not exist or if the file is corrupt, to create a new object with default parameters and save it to a newly created settings file.
T newSettingsItem = new T();
SaveSettings(newSettingsItem.ToJsonString(), powertoy, fileName);
return newSettingsItem;
} }
// Given the powerToy folder name and filename to be accessed, this function deserializes and returns the file. // Given the powerToy folder name and filename to be accessed, this function deserializes and returns the file.