private static void AcquireGlobalLock(string[] args)
{
try
{
if (ShouldLock(args))
{
GVFSEnlistment enlistment = GVFSEnlistment.CreateFromCurrentDirectory(null, GitProcess.GetInstalledGitBinPath());
if (enlistment == null)
{
ExitWithError("This hook must be run from a GVFS repo");
}
if (EnlistmentIsReady(enlistment))
{
string fullCommand = "git " + string.Join(" ", args.Skip(1));
int pid = ProcessHelper.GetParentProcessId("git.exe");
Process parentProcess = null;
if (pid == GVFSConstants.InvalidProcessId ||
!ProcessHelper.TryGetProcess(pid, out parentProcess))
{
ExitWithError("GVFS.Hooks: Unable to find parent git.exe process " + "(PID: " + pid + ").");
}
using (NamedPipeClient pipeClient = new NamedPipeClient(enlistment.NamedPipeName))
{
if (!pipeClient.Connect())
{
ExitWithError("The enlistment does not appear to be mounted. Use 'gvfs status' to check.");
}
NamedPipeMessages.AcquireLock.Request request =
new NamedPipeMessages.AcquireLock.Request(pid, fullCommand, ProcessHelper.GetCommandLine(parentProcess));
NamedPipeMessages.Message requestMessage = request.CreateMessage();
pipeClient.SendRequest(requestMessage);
NamedPipeMessages.AcquireLock.Response response = new NamedPipeMessages.AcquireLock.Response(pipeClient.ReadResponse());
if (response.Result == NamedPipeMessages.AcquireLock.AcceptResult)
{
return;
}
else if (response.Result == NamedPipeMessages.AcquireLock.MountNotReadyResult)
{
ExitWithError("GVFS has not finished initializing, please wait a few seconds and try again.");
}
else
{
int retries = 0;
char[] waiting = { '\u2014', '\\', '|', '/' };
string message = string.Empty;
while (true)
{
if (response.Result == NamedPipeMessages.AcquireLock.AcceptResult)
{
if (!Console.IsOutputRedirected)
{
Console.WriteLine("\r{0}...", message);
}
return;
}
else if (response.Result == NamedPipeMessages.AcquireLock.DenyGVFSResult)
{
message = "Waiting for GVFS to release the lock";
}
else if (response.Result == NamedPipeMessages.AcquireLock.DenyGitResult)
{
message = string.Format("Waiting for '{0}' to release the lock", response.ResponseData.ParsedCommand);
}
else
{
ExitWithError("Error when acquiring the lock. Unrecognized response: " + response.CreateMessage());
tracer.RelatedError("Unknown LockRequestResponse: " + response);
}
if (Console.IsOutputRedirected && retries == 0)
{
Console.WriteLine("{0}...", message);
}
else if (!Console.IsOutputRedirected)
{
Console.Write("\r{0}..{1}", message, waiting[retries % waiting.Length]);
}
Thread.Sleep(500);
pipeClient.SendRequest(requestMessage);
response = new NamedPipeMessages.AcquireLock.Response(pipeClient.ReadResponse());
retries++;
}
}
}
}
}
}
catch (Exception e)
{
EventMetadata metadata = new EventMetadata();
metadata.Add("Error", e.ToString());
tracer.RelatedError(metadata);
ExitWithError(
"Unable to initialize Git command.",
"Ensure that GVFS is running.");
}
}
public void Execute()
{
// CmdParser doesn't strip quotes, and Path.Combine will throw
this.GitBinPath = this.GitBinPath.Replace("\"", string.Empty);
if (!GitProcess.GitExists(this.GitBinPath))
{
Console.WriteLine(
"Could not find git.exe {0}",
!string.IsNullOrWhiteSpace(this.GitBinPath) ? "at " + this.GitBinPath : "on %PATH%");
return;
}
if (this.Commit != null && this.Branch != null)
{
Console.WriteLine("Cannot specify both a commit sha and a branch name to checkout.");
return;
}
this.CacheServerUrl = Enlistment.StripObjectsEndpointSuffix(this.CacheServerUrl);
this.SearchThreadCount = this.SearchThreadCount > 0 ? this.SearchThreadCount : Environment.ProcessorCount;
this.DownloadThreadCount = this.DownloadThreadCount > 0 ? this.DownloadThreadCount : Environment.ProcessorCount;
this.IndexThreadCount = this.IndexThreadCount > 0 ? this.IndexThreadCount : Environment.ProcessorCount;
this.CheckoutThreadCount = this.CheckoutThreadCount > 0 ? this.CheckoutThreadCount : Environment.ProcessorCount;
this.GitBinPath = !string.IsNullOrWhiteSpace(this.GitBinPath) ? this.GitBinPath : GitProcess.GetInstalledGitBinPath();
Enlistment enlistment = (Enlistment)GVFSEnlistment.CreateFromCurrentDirectory(this.CacheServerUrl, this.GitBinPath)
?? GitEnlistment.CreateFromCurrentDirectory(this.CacheServerUrl, this.GitBinPath);
if (enlistment == null)
{
Console.WriteLine("Must be run within a .git repo or GVFS enlistment");
return;
}
string commitish = this.Commit ?? this.Branch ?? DefaultBranch;
EventLevel maxVerbosity = this.Silent ? EventLevel.LogAlways : EventLevel.Informational;
using (JsonEtwTracer tracer = new JsonEtwTracer("Microsoft.Git.FastFetch", "FastFetch"))
{
tracer.AddConsoleEventListener(maxVerbosity, Keywords.Any);
tracer.WriteStartEvent(
enlistment.EnlistmentRoot,
enlistment.RepoUrl,
enlistment.CacheServerUrl,
new EventMetadata
{
{ "TargetCommitish", commitish },
});
FetchHelper fetchHelper = this.GetFetchHelper(tracer, enlistment);
fetchHelper.MaxRetries = this.MaxRetries;
if (!FetchHelper.TryLoadPathWhitelist(this.PathWhitelist, this.PathWhitelistFile, tracer, fetchHelper.PathWhitelist))
{
Environment.ExitCode = 1;
return;
}
try
{
bool isBranch = this.Commit == null;
fetchHelper.FastFetch(commitish, isBranch);
if (fetchHelper.HasFailures)
{
Environment.ExitCode = 1;
}
}
catch (AggregateException e)
{
Environment.ExitCode = 1;
foreach (Exception ex in e.Flatten().InnerExceptions)
{
tracer.RelatedError(ex.ToString());
}
}
catch (Exception e)
{
Environment.ExitCode = 1;
tracer.RelatedError(e.ToString());
}
EventMetadata stopMetadata = new EventMetadata();
stopMetadata.Add("Success", Environment.ExitCode == 0);
tracer.Stop(stopMetadata);
}
if (Debugger.IsAttached)
{
Console.ReadKey();
}
}