protected override string DownloadHashFileCore(string latestVersion)
 {
     return(_effectiveStrategy.DownloadHashFile(latestVersion));
 }
예제 #2
0
        public static void StartPaketBootstrapping(IDownloadStrategy downloadStrategy, DownloadArguments dlArgs, IFileSystemProxy fileSystemProxy, Action onSuccess)
        {
            Action <Exception> handleException = exception =>
            {
#if DEBUG
                Environment.ExitCode = 1;
                ConsoleImpl.WriteError(String.Format("{0} ({1})", exception.ToString(), downloadStrategy.Name));
                return;
#else
                ConsoleImpl.WriteError(String.Format("{0} ({1})", exception.Message, downloadStrategy.Name));
                if (!fileSystemProxy.FileExists(dlArgs.Target))
                {
                    Environment.ExitCode = 1;
                }
                else
                {
                    fileSystemProxy.WaitForFileFinished(dlArgs.Target);
                    onSuccess();
                }
#endif
            };

            try
            {
                string versionRequested;
                if (!dlArgs.IgnorePrerelease)
                {
                    versionRequested = "prerelease requested";
                }
                else if (String.IsNullOrWhiteSpace(dlArgs.LatestVersion))
                {
                    versionRequested = "downloading latest stable";
                }
                else
                {
                    versionRequested = string.Format("version {0} requested", dlArgs.LatestVersion);
                }

                ConsoleImpl.WriteInfo("Checking Paket version ({0})...", versionRequested);
                ConsoleImpl.WriteTrace("Target path is {0}", dlArgs.Target);
                var localVersion = fileSystemProxy.GetLocalFileVersion(dlArgs.Target);
                ConsoleImpl.WriteTrace("File in target path version: v{0}", string.IsNullOrEmpty(localVersion) ? "UNKNOWN" : localVersion);

                var specificVersionRequested = true;
                var latestVersion            = dlArgs.LatestVersion;

                if (latestVersion == string.Empty)
                {
                    ConsoleImpl.WriteTrace("No version specified, checking online...");

                    var getLatestVersionWatch = Stopwatch.StartNew();
                    latestVersion = downloadStrategy.GetLatestVersion(dlArgs.IgnorePrerelease);
                    getLatestVersionWatch.Stop();

                    ConsoleImpl.WriteTrace("Latest version check found v{0} in {1:0.##} second(s)", latestVersion, getLatestVersionWatch.Elapsed.TotalSeconds);
                    specificVersionRequested = false;
                }

                if (dlArgs.DoSelfUpdate)
                {
                    ConsoleImpl.WriteInfo("Trying self update");
                    downloadStrategy.SelfUpdate(latestVersion);
                }
                else
                {
                    var currentSemVer = String.IsNullOrEmpty(localVersion) ? new SemVer() : SemVer.Create(localVersion);
                    if (currentSemVer.PreRelease != null && dlArgs.IgnorePrerelease)
                    {
                        currentSemVer = new SemVer();
                    }
                    var latestSemVer = SemVer.Create(latestVersion);
                    var comparison   = currentSemVer.CompareTo(latestSemVer);

                    if ((comparison > 0 && specificVersionRequested) || comparison < 0)
                    {
                        PaketHashFile hashFile = null;
                        if (downloadStrategy.CanDownloadHashFile)
                        {
                            ConsoleImpl.WriteTrace("Downloading hash for v{0} ...", latestVersion);
                            var downloadHashWatch = Stopwatch.StartNew();
                            hashFile = downloadStrategy.DownloadHashFile(latestVersion);
                            downloadHashWatch.Stop();

                            ConsoleImpl.WriteTrace("Hash download took {0:0.##} second(s)", downloadHashWatch.Elapsed.TotalSeconds);
                        }

                        ConsoleImpl.WriteTrace("Downloading v{0} ...", latestVersion);

                        var downloadWatch = Stopwatch.StartNew();
                        downloadStrategy.DownloadVersion(latestVersion, dlArgs.Target, hashFile);
                        downloadWatch.Stop();

                        ConsoleImpl.WriteTrace("Download took {0:0.##} second(s)", downloadWatch.Elapsed.TotalSeconds);
                        ConsoleImpl.WriteInfo("Done in {0:0.##} second(s).", executionWatch.Elapsed.TotalSeconds);
                    }
                    else
                    {
                        ConsoleImpl.WriteInfo("Paket.exe {0} is up to date.", localVersion);
                    }
                }

                executionWatch.Stop();
                ConsoleImpl.WriteTrace("Paket Bootstrapping took {0:0.##} second(s)", executionWatch.Elapsed.TotalSeconds);

                onSuccess();
            }
            catch (WebException exn)
            {
                var shouldHandleException = true;
                if (!fileSystemProxy.FileExists(dlArgs.Target))
                {
                    if (downloadStrategy.FallbackStrategy != null)
                    {
                        var fallbackStrategy = downloadStrategy.FallbackStrategy;
                        ConsoleImpl.WriteInfo("'{0}' download failed. If using Mono, you may need to import trusted certificates using the 'mozroots' tool as none are contained by default. Trying fallback download from '{1}'.", downloadStrategy.Name, fallbackStrategy.Name);
                        StartPaketBootstrapping(fallbackStrategy, dlArgs, fileSystemProxy, onSuccess);
                        shouldHandleException = !fileSystemProxy.FileExists(dlArgs.Target);
                    }
                }
                if (shouldHandleException)
                {
                    handleException(exn);
                }
            }
            catch (Exception exn)
            {
                handleException(exn);
            }
        }
 protected override void DownloadHashFileCore(string latestVersion)
 {
     _effectiveStrategy.DownloadHashFile(latestVersion);
 }