/// <summary>
/// Create a DockerContainerInstance from the results of docker ps in JSON format
/// </summary>
public static bool TryCreate(string json, out DockerContainerInstance instance)
{
instance = null;
try
{
JObject obj = JObject.Parse(json);
instance = obj.ToObject <DockerContainerInstance>();
}
catch (Exception e)
{
HostTelemetry.SendEvent(TelemetryHelper.Event_DockerPSParseFailure, new KeyValuePair <string, object>[] {
new KeyValuePair <string, object>(TelemetryHelper.Property_ExceptionName, e.GetType().Name)
});
string error = e.ToString();
VsOutputWindowWrapper.WriteLine(StringResources.Error_DockerPSParseFailed.FormatCurrentCultureWithArgs(json, error), StringResources.Docker_PSName);
Debug.Fail(error);
}
return(instance != null);
}
public static IEnumerable <string> GetInstalledDistros()
{
HashSet <string> distributions = new HashSet <string>(StringComparer.OrdinalIgnoreCase);
ThreadHelper.JoinableTaskFactory.Run(StringResources.WaitingOp_EnumeratingWSLDistros, async(progress, cancellationToken) =>
{
ProcessStartInfo startInfo = GetWSLStartInfo("-l -v", Encoding.Unicode);
ProcessResult processResult = await LocalProcessAsyncRunner.ExecuteProcessAsync(startInfo, cancellationToken);
if (processResult.ExitCode != 0)
{
const int NoDistrosExitCode = -1;
if (processResult.ExitCode == NoDistrosExitCode)
{
// Older versions of wsl don't like the '-v' and will also fail with -1 for that reason. Check if this is why we are seeing the failure
ProcessResult retryResult = await LocalProcessAsyncRunner.ExecuteProcessAsync(GetWSLStartInfo("-l", Encoding.Unicode), cancellationToken);
// If the exit code is still NoDistros then they really don't have any distros
if (retryResult.ExitCode == NoDistrosExitCode)
{
throw new WSLException(StringResources.Error_WSLNoDistros);
}
// For any other code, they don't have WSL 2 installed.
else
{
throw new WSLException(StringResources.WSL_V2Required);
}
}
else
{
if (processResult.StdErr.Count > 0)
{
VsOutputWindowWrapper.WriteLine(StringResources.Error_WSLExecErrorOut_Args2.FormatCurrentCultureWithArgs(startInfo.FileName, startInfo.Arguments));
foreach (string line in processResult.StdErr)
{
VsOutputWindowWrapper.WriteLine("\t" + line);
}
}
throw new WSLException(StringResources.Error_WSLEnumDistrosFailed_Args1.FormatCurrentCultureWithArgs(processResult.ExitCode));
}
}
// Parse the installed distributions
/* Ouput looks like:
* NAME STATE VERSION
* Ubuntu Stopped 2
* docker-desktop-data Running 2
* docker-desktop Running 2
*/
Regex distributionRegex = new Regex(@"^\*?\s+(?<name>\S+)\s");
foreach (string line in processResult.StdOut.Skip(1))
{
Match match = distributionRegex.Match(line);
if (match.Success)
{
string distroName = match.Groups["name"].Value;
if (distroName.StartsWith("docker-desktop", StringComparison.OrdinalIgnoreCase))
{
continue;
}
distributions.Add(distroName);
}
}
});
if (distributions.Count == 0)
{
throw new WSLException(StringResources.Error_WSLNoDistros);
}
return(distributions);
}
