private void PerformPrefetch(GVFSEnlistment enlistment, ITracer tracer)
{
try
{
EventMetadata metadata = new EventMetadata();
metadata.Add("Commits", this.Commits);
metadata.Add("PathWhitelist", this.PathWhitelist);
metadata.Add("PathWhitelistFile", this.PathWhitelistFile);
tracer.RelatedEvent(EventLevel.Informational, "PerformPrefetch", metadata);
if (this.Commits)
{
if (!string.IsNullOrEmpty(this.PathWhitelistFile) ||
!string.IsNullOrWhiteSpace(this.PathWhitelist))
{
this.ReportErrorAndExit("Cannot supply both --commits (-c) and --folders (-f)");
}
PrefetchHelper prefetchHelper = new PrefetchHelper(
tracer,
enlistment,
DownloadThreadCount);
prefetchHelper.PrefetchCommitsAndTrees();
return;
}
FetchHelper fetchHelper = new FetchHelper(
tracer,
enlistment,
ChunkSize,
SearchThreadCount,
DownloadThreadCount,
IndexThreadCount);
if (!FetchHelper.TryLoadPathWhitelist(this.PathWhitelist, this.PathWhitelistFile, tracer, fetchHelper.PathWhitelist))
{
Environment.ExitCode = (int)ReturnCode.GenericError;
return;
}
bool gvfsHeadFileExists;
string error;
string projectedCommitId;
if (!enlistment.TryParseGVFSHeadFile(out gvfsHeadFileExists, out error, out projectedCommitId))
{
tracer.RelatedError(error);
this.Output.WriteLine(error);
Environment.ExitCode = (int)ReturnCode.GenericError;
return;
}
fetchHelper.FastFetch(projectedCommitId.Trim(), isBranch: false);
if (fetchHelper.HasFailures)
{
Environment.ExitCode = 1;
}
}
catch (AggregateException e)
{
this.Output.WriteLine("Cannot prefetch @ {0}:", enlistment.EnlistmentRoot);
foreach (Exception ex in e.Flatten().InnerExceptions)
{
this.Output.WriteLine("Exception: {0}", ex.ToString());
}
Environment.ExitCode = (int)ReturnCode.GenericError;
}
catch (VerbAbortedException)
{
throw;
}
catch (Exception e)
{
this.ReportErrorAndExit("Cannot prefetch @ {0}: {1}", enlistment.EnlistmentRoot, e.ToString());
}
}