func handle()

in Sources/XCMetricsClient/Mobius/Effect Handlers/CacheLogsEffectHandler.swift [34:67]
29 lines of code
3 McCabe index (conditional complexity)

    func handle(_ effectParameters: (currentLog: URL?, previousLogs: Set<URL>, cachedLogs: Set<URL>, projectName: String),
                _ callback: EffectCallback<MetricsUploaderEvent>) -> Disposable {
        do {
            // Cache other logs that Xcode produced.
            var cachedLogsURLs = try logManager.cacheLogs(effectParameters.previousLogs, cachedLogs: effectParameters.cachedLogs, retries: 0)
            // Cache currentLog separately, to keep track of its cached location.
            var cachedCurrentLogURLs: Set<URL> = []
            if let currentLog = effectParameters.currentLog {
                cachedCurrentLogURLs = try logManager.cacheLogs(Set([currentLog]),
                                                                cachedLogs: cachedLogsURLs.union(effectParameters.cachedLogs),
                                                                retries: logCopyRetries)
                cachedLogsURLs = cachedLogsURLs.union(cachedCurrentLogURLs)
            }
            log("Successfully cached logs: \(cachedLogsURLs)")
            // Retrieve requests that previously failed to upload.
            let requestsToRetry = try logManager.retrieveLogRequestsToUpload()
            // Transforms the contents of the cached logs into an actual MetricsUploadRequest.
            let cachedUploadRequests: Set<MetricsUploadRequest> = Set(requestsToRetry.map {
                MetricsUploadRequest(fileURL: $0)
            })
            log("Successfully fetched requests that failed to upload previously: \(requestsToRetry))")

            callback.end(
                with: .logsCached(
                    currentLog: cachedCurrentLogURLs.first,
                    previousLogs: cachedLogsURLs.subtracting(cachedCurrentLogURLs),
                    cachedUploadRequests: cachedUploadRequests
                )
            )
        } catch {
            exit(1, error.localizedDescription)
        }
        return AnonymousDisposable {}
    }