private static void RunLockRequest(string[] args, bool unattended, LockRequestDelegate requestToRun)
{
try
{
if (ShouldLock(args))
{
using (NamedPipeClient pipeClient = new NamedPipeClient(enlistmentPipename))
{
if (!pipeClient.Connect())
{
ExitWithError("The repo does not appear to be mounted. Use 'gvfs status' to check.");
}
int pid = GetParentPid(args);
if (pid == Program.InvalidProcessId ||
!GVFSHooksPlatform.IsProcessActive(pid))
{
ExitWithError("GVFS.Hooks: Unable to find parent git.exe process " + "(PID: " + pid + ").");
}
requestToRun(unattended, args, pid, pipeClient);
}
}
}
catch (Exception exc)
{
ExitWithError(
"Unable to initialize Git command.",
"Ensure that GVFS is running.",
exc.ToString());
}
}
public static void Main(string[] args)
{
try
{
if (args.Length < 2)
{
ExitWithError("Usage: gvfs.hooks.exe --git-pid=<pid> <hook> <git verb> [<other arguments>]");
}
bool unattended = GVFSEnlistment.IsUnattended(tracer: null);
string errorMessage;
string normalizedCurrentDirectory;
if (!GVFSHooksPlatform.TryGetNormalizedPath(Environment.CurrentDirectory, out normalizedCurrentDirectory, out errorMessage))
{
ExitWithError($"Failed to determine final path for current directory {Environment.CurrentDirectory}. Error: {errorMessage}");
}
if (!GVFSHooksPlatform.TryGetGVFSEnlistmentRoot(Environment.CurrentDirectory, out enlistmentRoot, out errorMessage))
{
// Nothing to hook when being run outside of a GVFS repo.
// This is also the path when run with --git-dir outside of a GVFS directory, see Story #949665
Environment.Exit(0);
}
enlistmentPipename = GVFSHooksPlatform.GetNamedPipeName(enlistmentRoot);
switch (GetHookType(args))
{
case PreCommandHook:
CheckForLegalCommands(args);
RunLockRequest(args, unattended, AcquireGVFSLockForProcess);
RunPreCommands(args);
break;
case PostCommandHook:
// Do not release the lock if this request was only run to see if it could acquire the GVFSLock,
// but did not actually acquire it.
if (!CheckGVFSLockAvailabilityOnly(args))
{
RunLockRequest(args, unattended, ReleaseGVFSLock);
}
RunPostCommands(args, unattended);
break;
default:
ExitWithError("Unrecognized hook: " + string.Join(" ", args));
break;
}
}
catch (Exception ex)
{
ExitWithError("Unexpected exception: " + ex.ToString());
}
}
private static void CheckForLegalCommands(string[] args)
{
string command = GetGitCommand(args);
switch (command)
{
case "gui":
ExitWithError(GVFSHooksPlatform.GetGitGuiBlockedMessage());
break;
}
}
private static void RemindUpgradeAvailable()
{
// The idea is to generate a random number between 0 and 100. To make
// sure that the reminder is displayed only 10% of the times a git
// command is run, check that the random number is between 0 and 10,
// which will have a probability of 10/100 == 10%.
int reminderFrequency = 10;
int randomValue = random.Next(0, 100);
if ((IsUpgradeMessageDeterministic() || randomValue <= reminderFrequency) &&
ProductUpgraderInfo.IsLocalUpgradeAvailable(tracer: null, highestAvailableVersionDirectory: GVFSHooksPlatform.GetUpgradeHighestAvailableVersionDirectory()))
{
Console.WriteLine(Environment.NewLine + GVFSHooksPlatform.GetUpgradeReminderNotification());
}
}
private static void ReleaseGVFSLock(bool unattended, string[] args, int pid, NamedPipeClient pipeClient)
{
string fullCommand = GenerateFullCommand(args);
GVFSLock.ReleaseGVFSLock(
unattended,
pipeClient,
fullCommand,
pid,
GVFSHooksPlatform.IsElevated(),
GVFSHooksPlatform.IsConsoleOutputRedirectedToFile(),
response =>
{
if (response == null || response.ResponseData == null)
{
Console.WriteLine("\nError communicating with GVFS: Run 'gvfs status' to check the status of your repo");
}
else if (response.ResponseData.HasFailures)
{
if (response.ResponseData.FailureCountExceedsMaxFileNames)
{
Console.WriteLine(
"\nGVFS failed to update {0} files, run 'git status' to check the status of files in the repo",
response.ResponseData.FailedToDeleteCount + response.ResponseData.FailedToUpdateCount);
}
else
{
string deleteFailuresMessage = BuildUpdatePlaceholderFailureMessage(response.ResponseData.FailedToDeleteFileList, "delete", "git clean -f ");
if (deleteFailuresMessage.Length > 0)
{
Console.WriteLine(deleteFailuresMessage);
}
string updateFailuresMessage = BuildUpdatePlaceholderFailureMessage(response.ResponseData.FailedToUpdateFileList, "update", "git checkout -- ");
if (updateFailuresMessage.Length > 0)
{
Console.WriteLine(updateFailuresMessage);
}
}
}
},
gvfsEnlistmentRoot: null,
waitingMessage: "Waiting for GVFS to parse index and update placeholder files",
spinnerDelay: PostCommandSpinnerDelayMs);
}
private static void AcquireGVFSLockForProcess(bool unattended, string[] args, int pid, NamedPipeClient pipeClient)
{
string result;
bool checkGvfsLockAvailabilityOnly = CheckGVFSLockAvailabilityOnly(args);
string fullCommand = GenerateFullCommand(args);
if (!GVFSLock.TryAcquireGVFSLockForProcess(
unattended,
pipeClient,
fullCommand,
pid,
GVFSHooksPlatform.IsElevated(),
isConsoleOutputRedirectedToFile: GVFSHooksPlatform.IsConsoleOutputRedirectedToFile(),
checkAvailabilityOnly: checkGvfsLockAvailabilityOnly,
gvfsEnlistmentRoot: null,
result: out result))
{
ExitWithError(result);
}
}
private static void RemindUpgradeAvailable()
{
// The idea is to generate a random number between 0 and 100. To make
// sure that the reminder is displayed only 10% of the times a git
// command is run, check that the random number is between 0 and 10,
// which will have a probability of 10/100 == 10%.
int reminderFrequency = 10;
int randomValue = random.Next(0, 100);
if (randomValue <= reminderFrequency && ProductUpgrader.IsLocalUpgradeAvailable(GVFSHooksPlatform.GetInstallerExtension()))
{
Console.WriteLine(Environment.NewLine + GVFSConstants.UpgradeVerbMessages.ReminderNotification);
}
}