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Improves error handling when fetching multiple sources

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Fetching sources is no longer all or nothing. Now if a source cannot be fetched, it won’t prevent other sources from being updated.
This commit is contained in:
Riley Testut
2020-08-27 16:23:50 -07:00
parent ad33f6e1fb
commit b7564207b3
11 changed files with 262 additions and 116 deletions
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27
AltStore/Operations/FetchSourceOperation.swift
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@@ -41,7 +41,10 @@ class FetchSourceOperation: ResultOperation<Source>
super.main()
let dataTask = self.session.dataTask(with: self.sourceURL) { (data, response, error) in
self.managedObjectContext.perform {
let childContext = DatabaseManager.shared.persistentContainer.newBackgroundContext(withParent: self.managedObjectContext)
childContext.mergePolicy = NSOverwriteMergePolicy
childContext.perform {
do
{
let (data, _) = try Result((data, response), error).get()
@@ -68,21 +71,35 @@ class FetchSourceOperation: ResultOperation<Source>
throw DecodingError.dataCorruptedError(in: container, debugDescription: "Date is in invalid format.")
})
decoder.managedObjectContext = self.managedObjectContext
decoder.managedObjectContext = childContext
decoder.sourceURL = self.sourceURL
let source = try decoder.decode(Source.self, from: data)
let identifier = source.identifier
if source.identifier == Source.altStoreIdentifier, let patreonAccessToken = source.userInfo?[.patreonAccessToken]
if identifier == Source.altStoreIdentifier, let patreonAccessToken = source.userInfo?[.patreonAccessToken]
{
Keychain.shared.patreonCreatorAccessToken = patreonAccessToken
}
self.finish(.success(source))
try childContext.save()
self.managedObjectContext.perform {
if let source = Source.first(satisfying: NSPredicate(format: "%K == %@", #keyPath(Source.identifier), identifier), in: self.managedObjectContext)
{
self.finish(.success(source))
}
else
{
self.finish(.failure(OperationError.noSources))
}
}
}
catch
{
self.finish(.failure(error))
self.managedObjectContext.perform {
self.finish(.failure(error))
}
}
}
}