public bool TryRegisterRepo(string repoRoot, string ownerSID, out string errorMessage)
{
errorMessage = null;
try
{
lock (this.repoLock)
{
Dictionary <string, RepoRegistration> allRepos = this.ReadRegistry();
RepoRegistration repo;
if (allRepos.TryGetValue(repoRoot, out repo))
{
if (!repo.IsActive)
{
repo.IsActive = true;
repo.OwnerSID = ownerSID;
this.WriteRegistry(allRepos);
}
}
else
{
allRepos[repoRoot] = new RepoRegistration(repoRoot, ownerSID);
this.WriteRegistry(allRepos);
}
}
return(true);
}
catch (Exception e)
{
errorMessage = string.Format("Error while registering repo {0}: {1}", repoRoot, e.ToString());
}
return(false);
}
public Dictionary <string, RepoRegistration> ReadRegistry()
{
Dictionary <string, RepoRegistration> allRepos = new Dictionary <string, RepoRegistration>(StringComparer.OrdinalIgnoreCase);
using (Stream stream = this.fileSystem.OpenFileStream(
Path.Combine(this.registryParentFolderPath, RegistryName),
FileMode.OpenOrCreate,
FileAccess.Read,
FileShare.Read,
callFlushFileBuffers: false))
{
using (StreamReader reader = new StreamReader(stream))
{
string versionString = reader.ReadLine();
int version;
if (!int.TryParse(versionString, out version) ||
version > RegistryVersion)
{
if (versionString != null)
{
EventMetadata metadata = new EventMetadata();
metadata.Add("Area", EtwArea);
metadata.Add("OnDiskVersion", versionString);
metadata.Add("ExpectedVersion", versionString);
this.tracer.RelatedError(metadata, "ReadRegistry: Unsupported version");
}
return(allRepos);
}
while (!reader.EndOfStream)
{
string entry = reader.ReadLine();
if (entry.Length > 0)
{
try
{
RepoRegistration registration = RepoRegistration.FromJson(entry);
string errorMessage;
string normalizedEnlistmentRootPath = registration.EnlistmentRoot;
if (this.fileSystem.TryGetNormalizedPath(registration.EnlistmentRoot, out normalizedEnlistmentRootPath, out errorMessage))
{
if (!normalizedEnlistmentRootPath.Equals(registration.EnlistmentRoot, StringComparison.OrdinalIgnoreCase))
{
EventMetadata metadata = new EventMetadata();
metadata.Add("registration.EnlistmentRoot", registration.EnlistmentRoot);
metadata.Add(nameof(normalizedEnlistmentRootPath), normalizedEnlistmentRootPath);
metadata.Add(TracingConstants.MessageKey.InfoMessage, $"{nameof(this.ReadRegistry)}: Mapping registered enlistment root to final path");
this.tracer.RelatedEvent(EventLevel.Informational, $"{nameof(this.ReadRegistry)}_NormalizedPathMapping", metadata);
}
}
else
{
EventMetadata metadata = new EventMetadata();
metadata.Add("registration.EnlistmentRoot", registration.EnlistmentRoot);
metadata.Add("NormalizedEnlistmentRootPath", normalizedEnlistmentRootPath);
metadata.Add("ErrorMessage", errorMessage);
this.tracer.RelatedWarning(metadata, $"{nameof(this.ReadRegistry)}: Failed to get normalized path name for registed enlistment root");
}
if (normalizedEnlistmentRootPath != null)
{
allRepos[normalizedEnlistmentRootPath] = registration;
}
}
catch (Exception e)
{
EventMetadata metadata = new EventMetadata();
metadata.Add("Area", EtwArea);
metadata.Add("entry", entry);
metadata.Add("Exception", e.ToString());
this.tracer.RelatedError(metadata, "ReadRegistry: Failed to read entry");
}
}
}
}
}
return(allRepos);
}