public bool TryGetPayloadFromCache(string packageId, string packageVersion, out MsiPayload payload)
{
string packageCacheDirectory = GetPackageDirectory(packageId, packageVersion);
string manifestPath = Path.Combine(packageCacheDirectory, "msi.json");
payload = default;
// It's possible that the MSI is cached, but without the JSON manifest we cannot
// trust that the MSI in the cache directory is the correct file.
if (!File.Exists(manifestPath))
{
Log?.LogMessage($"Manifest file does not exist, '{manifestPath}'");
return(false);
}
// The msi.json manifest contains the name of the actual MSI. The filename does not necessarily match the package
// ID as it may have been shortened to support VS caching.
MsiManifest msiManifest = JsonConvert.DeserializeObject <MsiManifest>(File.ReadAllText(manifestPath));
string msiPath = Path.Combine(Path.GetDirectoryName(manifestPath), msiManifest.Payload);
if (!File.Exists(msiPath))
{
Log?.LogMessage($"MSI package is not cached, '{msiPath}'");
return(false);
}
payload = new MsiPayload(manifestPath, msiPath);
return(true);
}
/// <summary>
/// Creates the log filename to use when executing an MSI. The name is based on the primary log, payload name and <see cref="InstallAction"/>.
/// </summary>
/// <param name="packInfo">The workload pack to use when generating the log name.</param>
/// <param name="action">The install action that will be performed.</param>
/// <returns>The full path of the log file.</returns>
protected string GetMsiLogName(MsiPayload msi, InstallAction action)
{
return(Path.Combine(Path.GetDirectoryName(Log.LogPath),
Path.GetFileNameWithoutExtension(Log.LogPath) + $"_{msi.Manifest.Payload}_{action}.log"));
}
