private void MountAndStartWorkingDirectoryCallbacks(GVFSContext context)
{
HttpGitObjects httpGitObjects = new HttpGitObjects(context.Tracer, context.Enlistment, Environment.ProcessorCount);
if (!httpGitObjects.TryRefreshCredentials())
{
this.FailMountAndExit("Failed to obtain git credentials");
}
// Checking the disk layout version is done before this point in GVFS.CommandLine.MountVerb.PreExecute
RepoMetadata repoMetadata = new RepoMetadata(this.enlistment.DotGVFSRoot);
this.gitObjects = new GVFSGitObjects(context, httpGitObjects);
this.gvfltCallbacks = this.CreateOrReportAndExit(() => new GVFltCallbacks(context, this.gitObjects, repoMetadata), "Failed to create src folder callbacks");
int persistedVersion;
string error;
if (!repoMetadata.TryGetOnDiskLayoutVersion(out persistedVersion, out error))
{
this.FailMountAndExit("Error: {0}", error);
}
if (!repoMetadata.OnDiskVersionUsesAlwaysExclude())
{
// Want this as close to repoMetadata.SaveCurrentDiskLayoutVersion() as possible to avoid possible corrupt states.
this.UpdateToAlwaysExcludeFile(repoMetadata);
}
try
{
if (!this.gvfltCallbacks.TryStart(out error))
{
this.FailMountAndExit("Error: {0}. \r\nPlease confirm that gvfs clone completed without error.", error);
}
}
catch (Exception e)
{
this.FailMountAndExit("Failed to initialize src folder callbacks. {0}", e.ToString());
}
repoMetadata.SaveCurrentDiskLayoutVersion();
repoMetadata.SetAlwaysExcludeInvalid(false);
this.AcquireFolderLocks(context);
this.heartbeat = new HeartbeatThread(this.tracer, this.gvfltCallbacks);
this.heartbeat.Start();
}
private void UpdateToAlwaysExcludeFile(RepoMetadata repoMetadata)
{
if (repoMetadata.GetAlwaysExcludeInvalid())
{
this.FailMountAndExit("always_exclude left in a corrupt state after failed mount.");
}
string alwaysExcludePath = Path.Combine(this.enlistment.WorkingDirectoryRoot, GVFSConstants.DotGit.Info.AlwaysExcludePath);
if (File.Exists(alwaysExcludePath))
{
this.FailMountAndExit("Error migrating to " + alwaysExcludePath + ", file already exists.");
}
string excludePath = Path.Combine(this.enlistment.WorkingDirectoryRoot, GVFSConstants.DotGit.Info.ExcludePath);
if (File.Exists(excludePath))
{
try
{
string[] lines = File.ReadAllLines(excludePath);
// To be valid, both exclude and always_exclude must be correctly written to,
// and the disk layout version stored on disk must be updated.
repoMetadata.SetAlwaysExcludeInvalid(true);
string newAlwaysExcludeContents = string.Join("\n", lines.Where(x => !x.StartsWith(GVFSConstants.GitCommentSignString))) + "\n";
string newExcludeContents = string.Join("\n", lines.Where(x => x.StartsWith(GVFSConstants.GitCommentSignString))) + "\n";
File.WriteAllText(alwaysExcludePath, newAlwaysExcludeContents);
File.WriteAllText(excludePath, newExcludeContents);
}
catch (Exception e)
{
EventMetadata metadata = new EventMetadata();
metadata.Add("Area", "Mount");
metadata.Add("alwaysExcludePath", alwaysExcludePath);
metadata.Add("excludePath", excludePath);
metadata.Add("Exception", e.ToString());
metadata.Add("ErrorMessage", "Failed to migrate " + excludePath + " to " + alwaysExcludePath);
this.tracer.RelatedError(metadata);
this.FailMountAndExit("Error migrating " + excludePath + " to " + alwaysExcludePath + ", run 'gvfs log' for details");
}
}
}
