public IEnumerable <ScalarRepoRegistration> GetRegisteredRepos()
{
if (this.fileSystem.DirectoryExists(this.registryFolderPath))
{
IEnumerable <string> registryFilePaths = this.fileSystem.EnumerateFiles(this.registryFolderPath, $"*{RegistryFileExtension}");
foreach (string registryFilePath in registryFilePaths)
{
ScalarRepoRegistration registration = null;
try
{
string repoData = this.fileSystem.ReadAllText(registryFilePath);
registration = ScalarRepoRegistration.FromJson(repoData);
}
catch (Exception e)
{
EventMetadata metadata = CreateEventMetadata(e);
metadata.Add(nameof(registryFilePath), registryFilePath);
this.tracer.RelatedWarning(
metadata,
$"{nameof(this.GetRegisteredRepos)}: Failed to read registry file");
}
if (registration != null)
{
yield return(registration);
}
}
}
}
public bool TryRegisterRepo(string normalizedRepoRoot, string userId, out string errorMessage)
{
if (!this.TryCreateRepoRegistryDirectory(out errorMessage))
{
return(false);
}
string tempRegistryPath = this.GetRepoRegistryTempFilePath(normalizedRepoRoot);
try
{
ScalarRepoRegistration repoRegistration = new ScalarRepoRegistration(normalizedRepoRoot, userId);
string registryFileContents = repoRegistration.ToJson();
using (Stream tempFile = this.fileSystem.OpenFileStream(
tempRegistryPath,
FileMode.Create,
FileAccess.Write,
FileShare.None,
callFlushFileBuffers: true))
using (StreamWriter writer = new StreamWriter(tempFile))
{
writer.WriteLine(registryFileContents);
tempFile.Flush();
}
}
catch (Exception e)
{
errorMessage = $"Error while registering repo {normalizedRepoRoot}: {e.Message}";
EventMetadata metadata = CreateEventMetadata(e);
metadata.Add(nameof(normalizedRepoRoot), normalizedRepoRoot);
metadata.Add(nameof(tempRegistryPath), tempRegistryPath);
this.tracer.RelatedError(metadata, $"{nameof(this.TryRegisterRepo)}: Exception while writing temp registry file");
return(false);
}
string registryFilePath = this.GetRepoRegistryFilePath(normalizedRepoRoot);
try
{
this.fileSystem.MoveAndOverwriteFile(tempRegistryPath, registryFilePath);
}
catch (Win32Exception e)
{
errorMessage = $"Error while registering repo {normalizedRepoRoot}: {e.Message}";
EventMetadata metadata = CreateEventMetadata(e);
metadata.Add(nameof(normalizedRepoRoot), normalizedRepoRoot);
metadata.Add(nameof(tempRegistryPath), tempRegistryPath);
metadata.Add(nameof(registryFilePath), registryFilePath);
this.tracer.RelatedError(metadata, $"{nameof(this.TryRegisterRepo)}: Exception while renaming temp registry file");
return(false);
}
errorMessage = null;
return(true);
}