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Use a guard instead to make it tidier

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This commit is contained in:
Andrew Naylor 2016-02-14 01:24:30 +00:00
parent d80ad6e866
commit 490c73c6ac
1 changed files with 38 additions and 39 deletions
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77
mas-cli/AppStore/Downloader.swift
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@ -8,45 +8,44 @@
func download(adamId: UInt64) -> MASError? {
if let account = ISStoreAccount.primaryAccount {
let group = dispatch_group_create()
let purchase = SSPurchase(adamId: adamId, account: account)
var purchaseError: MASError?
purchase.perform { purchase, unused, error, response in
if let error = error {
purchaseError = MASError(code: .PurchaseError, sourceError: error)
dispatch_group_leave(group)
return
}
if let downloads = response.downloads where downloads.count > 0 {
let observer = PurchaseDownloadObserver(purchase: purchase)
observer.errorHandler = { error in
purchaseError = error
dispatch_group_leave(group)
}
observer.completionHandler = {
dispatch_group_leave(group)
}
CKDownloadQueue.sharedDownloadQueue().addObserver(observer)
}
else {
print("No downloads")
purchaseError = MASError(code: .NoDownloads)
dispatch_group_leave(group)
}
}
dispatch_group_enter(group)
dispatch_group_wait(group, DISPATCH_TIME_FOREVER)
return purchaseError
}
else {
guard let account = ISStoreAccount.primaryAccount else {
return MASError(code: .NotSignedIn)
}
let group = dispatch_group_create()
let purchase = SSPurchase(adamId: adamId, account: account)
var purchaseError: MASError?
purchase.perform { purchase, unused, error, response in
if let error = error {
purchaseError = MASError(code: .PurchaseError, sourceError: error)
dispatch_group_leave(group)
return
}
if let downloads = response.downloads where downloads.count > 0 {
let observer = PurchaseDownloadObserver(purchase: purchase)
observer.errorHandler = { error in
purchaseError = error
dispatch_group_leave(group)
}
observer.completionHandler = {
dispatch_group_leave(group)
}
CKDownloadQueue.sharedDownloadQueue().addObserver(observer)
}
else {
print("No downloads")
purchaseError = MASError(code: .NoDownloads)
dispatch_group_leave(group)
}
}
dispatch_group_enter(group)
dispatch_group_wait(group, DISPATCH_TIME_FOREVER)
return purchaseError
}