static int Install([NotNull] ISnapInstallerEnvironment environment,
[NotNull] ISnapInstallerEmbeddedResources snapInstallerEmbeddedResources, [NotNull] ISnapInstaller snapInstaller,
[NotNull] ISnapFilesystem snapFilesystem, [NotNull] ISnapPack snapPack, [NotNull] ISnapOs snapOs,
[NotNull] CoreRunLib coreRunLib, [NotNull] ISnapAppReader snapAppReader, [NotNull] ISnapAppWriter snapAppWriter,
[NotNull] INugetService nugetService, [NotNull] ISnapPackageManager snapPackageManager,
[NotNull] ISnapExtractor snapExtractor, [NotNull] ILog diskLogger,
bool headless)
{
if (environment == null)
{
throw new ArgumentNullException(nameof(environment));
}
if (snapInstallerEmbeddedResources == null)
{
throw new ArgumentNullException(nameof(snapInstallerEmbeddedResources));
}
if (snapInstaller == null)
{
throw new ArgumentNullException(nameof(snapInstaller));
}
if (snapFilesystem == null)
{
throw new ArgumentNullException(nameof(snapFilesystem));
}
if (snapPack == null)
{
throw new ArgumentNullException(nameof(snapPack));
}
if (snapOs == null)
{
throw new ArgumentNullException(nameof(snapOs));
}
if (coreRunLib == null)
{
throw new ArgumentNullException(nameof(coreRunLib));
}
if (snapAppReader == null)
{
throw new ArgumentNullException(nameof(snapAppReader));
}
if (snapAppWriter == null)
{
throw new ArgumentNullException(nameof(snapAppWriter));
}
if (nugetService == null)
{
throw new ArgumentNullException(nameof(nugetService));
}
if (snapPackageManager == null)
{
throw new ArgumentNullException(nameof(snapPackageManager));
}
if (snapExtractor == null)
{
throw new ArgumentNullException(nameof(snapExtractor));
}
if (diskLogger == null)
{
throw new ArgumentNullException(nameof(diskLogger));
}
// NB! All filesystem operations has to be readonly until check that verifies
// current user is not elevated to root has run.
var cancellationToken = environment.CancellationToken;
var installerProgressSource = new SnapProgressSource();
var onFirstAnimationRenderedEvent = new ManualResetEventSlim(false);
var exitCode = 1;
// ReSharper disable once ImplicitlyCapturedClosure
async Task InstallInBackgroundAsync(IMainWindowViewModel mainWindowViewModel)
{
if (mainWindowViewModel == null)
{
throw new ArgumentNullException(nameof(mainWindowViewModel));
}
if (mainWindowViewModel.Headless)
{
diskLogger.Info("Headless install.");
onFirstAnimationRenderedEvent.Dispose();
}
else
{
diskLogger.Info("Waiting for main window to become visible.");
onFirstAnimationRenderedEvent.Wait(cancellationToken);
onFirstAnimationRenderedEvent.Dispose();
diskLogger.Info("Main window should now be visible.");
}
var mainWindowLogger = new LogForwarder(LogLevel.Info, diskLogger, (level, func, exception, parameters) =>
{
var message = func?.Invoke();
if (message == null)
{
return;
}
SetStatusText(mainWindowViewModel, message);
});
if (coreRunLib.IsElevated())
{
var rootUserText = snapOs.OsPlatform == OSPlatform.Windows ? "Administrator" : "root";
mainWindowLogger.Error($"Error! Installer cannot run in an elevated user context: {rootUserText}");
goto done;
}
diskLogger.Debug($"{nameof(environment.Io.WorkingDirectory)}: {environment.Io.WorkingDirectory}");
diskLogger.Debug($"{nameof(environment.Io.ThisExeWorkingDirectory)}: {environment.Io.ThisExeWorkingDirectory}");
var snapAppDllAbsolutePath = snapFilesystem.PathCombine(environment.Io.ThisExeWorkingDirectory, SnapConstants.SnapAppDllFilename);
diskLogger.Debug($"{nameof(snapAppDllAbsolutePath)}: {snapAppDllAbsolutePath}.");
if (!snapFilesystem.FileExists(snapAppDllAbsolutePath))
{
mainWindowLogger.Info($"Unable to find: {snapFilesystem.PathGetFileName(snapAppDllAbsolutePath)}");
goto done;
}
SnapApp snapApp;
SnapChannel snapChannel;
try
{
snapApp = environment.Io.ThisExeWorkingDirectory.GetSnapAppFromDirectory(snapFilesystem, snapAppReader);
snapChannel = snapApp.GetCurrentChannelOrThrow();
}
catch (Exception ex)
{
mainWindowLogger.ErrorException($"Error reading {SnapConstants.SnapAppDllFilename}", ex);
goto done;
}
var nupkgAbsolutePath = snapFilesystem.PathCombine(environment.Io.ThisExeWorkingDirectory, "Setup.nupkg");
var nupkgReleasesAbsolutePath = snapFilesystem.PathCombine(environment.Io.ThisExeWorkingDirectory, snapApp.BuildNugetReleasesFilename());
var offlineInstaller = false;
using (var webInstallerDir = new DisposableDirectory(snapOs.SpecialFolders.NugetCacheDirectory, snapFilesystem))
{
ISnapAppChannelReleases snapAppChannelReleases;
SnapRelease snapReleaseToInstall;
// Offline installer
if (snapFilesystem.FileExists(nupkgAbsolutePath))
{
mainWindowLogger.Info("Offline installer is loading releases nupkg");
try
{
var releasesFileStream = snapFilesystem.FileRead(nupkgReleasesAbsolutePath);
using var packageArchiveReader = new PackageArchiveReader(releasesFileStream);
var snapAppsReleases = await snapExtractor.GetSnapAppsReleasesAsync(packageArchiveReader, snapAppReader, cancellationToken);
snapAppChannelReleases = snapAppsReleases.GetReleases(snapApp, snapChannel);
var isGenesis = !snapAppChannelReleases.HasDeltaReleases();
snapReleaseToInstall = snapAppChannelReleases.GetMostRecentRelease().AsFullRelease(isGenesis);
}
catch (Exception e)
{
mainWindowLogger.ErrorException($"Error reading {nupkgAbsolutePath}", e);
goto done;
}
offlineInstaller = true;
}
// Web installer
else if (snapFilesystem.FileExists(snapAppDllAbsolutePath))
{
mainWindowLogger.Info("Web installer is downloading releases nupkg");
try
{
var(snapAppsReleases, packageSource, releasesMemoryStream) =
await snapPackageManager.GetSnapsReleasesAsync(snapApp, mainWindowLogger, cancellationToken);
releasesMemoryStream?.Dispose();
if (snapAppsReleases == null)
{
mainWindowLogger.Error("Failed to download releases nupkg. Try rerunning the installer.");
goto done;
}
var snapAppsReleasesBytes = snapAppWriter.ToSnapAppsReleases(snapAppsReleases);
await snapFilesystem.FileWriteAsync(snapAppsReleasesBytes, nupkgReleasesAbsolutePath, cancellationToken);
snapAppChannelReleases = snapAppsReleases.GetReleases(snapApp, snapApp.GetCurrentChannelOrThrow());
if (!snapAppChannelReleases.Any())
{
mainWindowLogger.Error($"Unable to find any releases in channel: {snapAppChannelReleases.Channel.Name}.");
goto done;
}
var isGenesis = snapAppChannelReleases.Count() == 1;
snapReleaseToInstall = snapAppChannelReleases.GetMostRecentRelease().AsFullRelease(isGenesis);
snapApp.Version = snapReleaseToInstall.Version;
mainWindowLogger.Info($"Current version: {snapApp.Version}. Channel: {snapAppChannelReleases.Channel.Name}.");
// ReSharper disable once MethodSupportsCancellation
await Task.Delay(TimeSpan.FromSeconds(3));
mainWindowLogger.Info("Downloading required assets");
void UpdateProgress(string type, int totalPercentage,
long releasesChecksummed = 0, long releasesToChecksum = 0,
long releasesDownloaded = 0, long releasesToDownload = 0,
long filesRestored = 0, long filesToRestore = 0,
long totalBytesDownloaded = 0, long totalBytesToDownload = 0)
{
void SetProgressText(long current, long total, string defaultText, string pluralText)
{
var outputText = total > 1 ? pluralText : defaultText;
switch (type)
{
case "Download":
if (total > 1)
{
SetStatusText(mainWindowViewModel,
$"{outputText} ({totalPercentage}%): {current} of {total}. " +
$"Downloaded so far: {totalBytesDownloaded.BytesAsHumanReadable()}. " +
$"Total: {totalBytesToDownload.BytesAsHumanReadable()}");
goto incrementProgress;
}
SetStatusText(mainWindowViewModel,
$"{outputText} ({totalPercentage}%): " +
$"Downloaded so far: {totalBytesDownloaded.BytesAsHumanReadable()}. " +
$"Total: {totalBytesToDownload.BytesAsHumanReadable()}");
goto incrementProgress;
default:
if (total > 1)
{
SetStatusText(mainWindowViewModel, $"{outputText} ({totalPercentage}%): {current} of {total}.");
goto incrementProgress;
}
SetStatusText(mainWindowViewModel, $"{outputText}: {totalPercentage}%");
goto incrementProgress;
}
incrementProgress:
installerProgressSource.Raise(totalPercentage);
}
switch (type)
{
case "Checksum":
SetProgressText(releasesChecksummed, releasesToChecksum, "Validating payload", "Validating payloads");
break;
case "Download":
SetProgressText(releasesDownloaded, releasesToDownload, "Downloading payload", "Downloading payloads");
break;
case "Restore":
SetProgressText(filesRestored, filesToRestore, "Restoring file", "Restoring files");
break;
default:
diskLogger.Warn($"Unknown progress type: {type}");
break;
}
}
var snapPackageManagerProgressSource = new SnapPackageManagerProgressSource
{
ChecksumProgress = x => UpdateProgress("Checksum",
x.progressPercentage,
x.releasesChecksummed,
x.releasesToChecksum),
DownloadProgress = x => UpdateProgress("Download",
x.progressPercentage,
releasesDownloaded: x.releasesDownloaded,
releasesToDownload: x.releasesToDownload,
totalBytesDownloaded: x.totalBytesDownloaded,
totalBytesToDownload: x.totalBytesToDownload),
RestoreProgress = x => UpdateProgress("Restore",
x.progressPercentage,
filesRestored: x.filesRestored,
filesToRestore: x.filesToRestore)
};
var restoreSummary = await snapPackageManager.RestoreAsync(webInstallerDir.WorkingDirectory, snapAppChannelReleases,
packageSource, SnapPackageManagerRestoreType.Default, snapPackageManagerProgressSource, diskLogger, cancellationToken);
if (!restoreSummary.Success)
{
mainWindowLogger.Info("Unknown error while restoring assets.");
goto done;
}
mainWindowLogger.Info("Preparing to install payload");
var setupNupkgAbsolutePath = snapOs.Filesystem.PathCombine(webInstallerDir.WorkingDirectory, snapReleaseToInstall.Filename);
if (!snapFilesystem.FileExists(setupNupkgAbsolutePath))
{
mainWindowLogger.Error($"Payload does not exist on disk: {setupNupkgAbsolutePath}.");
goto done;
}
nupkgAbsolutePath = snapFilesystem.PathCombine(environment.Io.ThisExeWorkingDirectory, "Setup.nupkg");
mainWindowLogger.Info("Copying payload to installer directory");
snapOs.Filesystem.FileDeleteIfExists(nupkgAbsolutePath);
await snapOs.Filesystem.FileCopyAsync(setupNupkgAbsolutePath, nupkgAbsolutePath, cancellationToken);
mainWindowLogger.Info("Successfully copied payload");
installerProgressSource.Reset();
}
catch (Exception e)
{
mainWindowLogger.ErrorException("Unknown error while restoring assets", e);
goto done;
}
}
else
{
mainWindowLogger.Error("Unknown error. Could not find offline or web installer payload.");
goto done;
}
diskLogger.Trace($"Offline installer: {offlineInstaller}");
diskLogger.Trace($"{nameof(nupkgAbsolutePath)}: {nupkgAbsolutePath}");
diskLogger.Trace($"{nameof(nupkgReleasesAbsolutePath)}: {nupkgReleasesAbsolutePath}");
if (!snapFilesystem.FileExists(nupkgAbsolutePath))
{
mainWindowLogger.Error($"Unable to find installer payload: {snapFilesystem.PathGetFileName(nupkgAbsolutePath)}");
goto done;
}
mainWindowLogger.Info("Attempting to read payload release details");
if (!snapFilesystem.FileExists(nupkgReleasesAbsolutePath))
{
mainWindowLogger.Error($"Unable to find releases nupkg: {snapFilesystem.PathGetFileName(nupkgReleasesAbsolutePath)}");
goto done;
}
var baseDirectory = snapFilesystem.PathCombine(snapOs.SpecialFolders.LocalApplicationData, snapApp.Id);
mainWindowLogger.Info($"Installing {snapApp.Id}. Channel name: {snapChannel.Name}");
try
{
var snapAppInstalled = await snapInstaller.InstallAsync(nupkgAbsolutePath, baseDirectory,
snapReleaseToInstall, snapChannel, installerProgressSource, mainWindowLogger, cancellationToken, offlineInstaller);
if (snapAppInstalled == null)
{
goto done;
}
if (!offlineInstaller &&
snapAppChannelReleases.HasDeltaReleases())
{
var snapReleasesToCopy = new List <SnapRelease>
{
snapAppChannelReleases.GetGenesisRelease()
};
snapReleasesToCopy.AddRange(snapAppChannelReleases.GetDeltaReleases());
if (snapReleasesToCopy.Any())
{
var totalSnapReleasesToCopyCount = snapReleasesToCopy.Count;
mainWindowLogger.Info($"Copying 1 of {totalSnapReleasesToCopyCount} payloads to application directory.");
var packagesDirectory = snapFilesystem.PathCombine(baseDirectory, "packages");
var snapReleasesCopied = 1;
foreach (var snapRelease in snapReleasesToCopy)
{
var nupkgPackageWebInstallerDirectoryAbsolutePath = snapFilesystem.PathCombine(
webInstallerDir.WorkingDirectory, snapRelease.Filename);
var nupkgPackagePackagesDirectoryAbsolutePath = snapFilesystem.PathCombine(
packagesDirectory, snapRelease.Filename);
await snapFilesystem.FileCopyAsync(
nupkgPackageWebInstallerDirectoryAbsolutePath,
nupkgPackagePackagesDirectoryAbsolutePath, cancellationToken);
mainWindowLogger.Info($"Copied {snapReleasesCopied} of {totalSnapReleasesToCopyCount} payloads to application directory.");
++snapReleasesCopied;
}
mainWindowLogger.Info("Successfully copied all payloads.");
}
snapFilesystem.FileDeleteIfExists(nupkgAbsolutePath);
}
mainWindowLogger.Info($"Successfully installed {snapApp.Id}.");
exitCode = 0;
}
catch (Exception e)
{
mainWindowLogger.ErrorException("Unknown error during install", e);
}
}
done:
// Give user enough time to read final log message.
Thread.Sleep(exitCode == 0 ? 3000 : 10000);
environment.Shutdown();
}
if (headless)
{
try
{
InstallInBackgroundAsync(new ConsoleMainViewModel()).Wait(cancellationToken);
}
catch (OperationCanceledException)
{
// ignore
}
return(exitCode);
}
var avaloniaApp = BuildAvaloniaApp <App>()
.AfterSetup(builder =>
{
MainWindow.Environment = environment;
MainWindow.ViewModel = new AvaloniaMainWindowViewModel(snapInstallerEmbeddedResources,
installerProgressSource, () => onFirstAnimationRenderedEvent.Set(), cancellationToken);
Task.Factory.StartNew(() => InstallInBackgroundAsync(MainWindow.ViewModel), TaskCreationOptions.LongRunning);
});
avaloniaApp.StartWithClassicDesktopLifetime(null);
return(exitCode);
}