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Bugfix #389 : Handle corrupt cache file

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This commit is contained in:
Robert McRackan 2022-11-08 07:22:08 -05:00
parent 06f8d055fc
commit 7575736991
2 changed files with 17 additions and 16 deletions
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31
Source/LibationFileManager/FilePathCache.cs
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@ -24,23 +24,24 @@ namespace LibationFileManager
static FilePathCache()
{
// load json into memory. if file doesn't exist, nothing to do. save() will create if needed
if (File.Exists(jsonFile))
{
var list = JsonConvert.DeserializeObject<List<CacheEntry>>(File.ReadAllText(jsonFile));
if (!File.Exists(jsonFile))
return;
// file exists but deser is null. this will never happen when file is healthy
if (list is null)
{
lock (locker)
{
Serilog.Log.Logger.Error("Error deserializing file. Wrong format. Possibly corrupt. Deleting file. {@DebugInfo}", new { jsonFile });
File.Delete(jsonFile);
return;
}
}
try
{
var list = JsonConvert.DeserializeObject<List<CacheEntry>>(File.ReadAllText(jsonFile));
if (list is null)
throw new NullReferenceException("File exists but deserialize is null. This will never happen when file is healthy.");
cache = new Cache<CacheEntry>(list);
}
cache = new Cache<CacheEntry>(list);
}
catch (Exception ex)
{
Serilog.Log.Logger.Error(ex, "Error deserializing file. Wrong format. Possibly corrupt. Deleting file. {@DebugInfo}", new { jsonFile });
lock (locker)
File.Delete(jsonFile);
return;
}
}
public static bool Exists(string id, FileType type) => GetFirstPath(id, type) is not null;