static bool SyncAndRunApplication(string[] Args, Mutex InstanceMutex, TextWriter LogWriter)
{
// Try to find Perforce in the path
string PerforceFileName = null;
foreach (string PathDirectoryName in (Environment.GetEnvironmentVariable("PATH") ?? "").Split(new char[] { Path.PathSeparator }, StringSplitOptions.RemoveEmptyEntries))
{
try
{
string PossibleFileName = Path.Combine(PathDirectoryName, "p4.exe");
if (File.Exists(PossibleFileName))
{
PerforceFileName = PossibleFileName;
break;
}
}
catch { }
}
// If it doesn't exist, don't continue
if (PerforceFileName == null)
{
LogWriter.WriteLine("UnrealGameSync requires the Perforce command-line tools. Please download and install from http://www.perforce.com/.");
return(false);
}
// Get the path that we're syncing
bool bUnstable = Args.Contains("-unstable", StringComparer.InvariantCultureIgnoreCase);
if (!bUnstable && (Control.ModifierKeys & Keys.Shift) != 0 && UnstableSyncPath != null)
{
if (MessageBox.Show("Use the latest unstable build of UnrealGameSync?\n\n(This message was triggered by holding down the SHIFT key on startup).", "Use unstable build?", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
bUnstable = true;
}
}
string SyncPath = bUnstable? UnstableSyncPath : StableSyncPath;
LogWriter.WriteLine("Syncing from {0}", SyncPath);
// Create the target folder
string ApplicationFolder = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "UnrealGameSync", "Latest");
if (!SafeCreateDirectory(ApplicationFolder))
{
LogWriter.WriteLine("Couldn't create directory: {0}", ApplicationFolder);
return(false);
}
// Find the most recent changelist
List <string> SubmittedLines = new List <string>();
if (RunPerforceCommand(PerforceFileName, "changes -s submitted -m 1", SubmittedLines, LogWriter) != 0)
{
LogWriter.WriteLine("Couldn't find last changelist");
return(false);
}
// Split into tokens
string[] ChangeTokens = SubmittedLines[0].Split(' ');
// Parse the changelist number
int RequiredChangeNumber;
if (ChangeTokens.Length < 2 || ChangeTokens[0] != "Change" || !int.TryParse(ChangeTokens[1], out RequiredChangeNumber))
{
LogWriter.WriteLine("Couldn't parse last changelist number");
return(false);
}
// Read the current version
string SyncVersionFile = Path.Combine(ApplicationFolder, "SyncVersion.txt");
string RequiredSyncText = String.Format("{0}@{1}", SyncPath, RequiredChangeNumber.ToString());
// Check if the version has changed
string SyncText;
if (!File.Exists(SyncVersionFile) || !TryReadAllText(SyncVersionFile, out SyncText) || SyncText != RequiredSyncText)
{
// Try to delete the directory contents. Retry for a while, in case we've been spawned by an application in this folder to do an update.
for (int NumRetries = 0; !SafeDeleteDirectoryContents(ApplicationFolder); NumRetries++)
{
if (NumRetries > 20)
{
LogWriter.WriteLine("Couldn't delete contents of {0} (retried {1} times).", ApplicationFolder, NumRetries);
return(false);
}
Thread.Sleep(500);
}
// Find all the files in the sync path at this changelist
List <string> FileLines = new List <string>();
if (RunPerforceCommand(PerforceFileName, String.Format("-z tag fstat \"{0}@{1}\"", SyncPath, RequiredChangeNumber), FileLines, LogWriter) != 0)
{
LogWriter.WriteLine("Couldn't find matching files.");
return(false);
}
// Sync all the files in this list to the same directory structure under the application folder
string DepotPathPrefix = SyncPath.Substring(0, SyncPath.LastIndexOf('/') + 1);
foreach (string FileLine in FileLines)
{
const string DepotPathTag = "... depotFile ";
if (FileLine.StartsWith(DepotPathTag))
{
string DepotPath = FileLine.Substring(DepotPathTag.Length).Trim();
if (!DepotPath.StartsWith(DepotPathPrefix, StringComparison.InvariantCultureIgnoreCase))
{
LogWriter.WriteLine("Found file {0} which did not begin with {1}", DepotPath, DepotPathPrefix);
return(false);
}
string LocalPath = Path.Combine(ApplicationFolder, DepotPath.Substring(DepotPathPrefix.Length).Replace('/', Path.DirectorySeparatorChar));
if (!SafeCreateDirectory(Path.GetDirectoryName(LocalPath)))
{
LogWriter.WriteLine("Couldn't create folder {0}", Path.GetDirectoryName(LocalPath));
return(false);
}
if (RunPerforceCommand(PerforceFileName, String.Format("print -o \"{0}\" \"{1}@{2}\"", LocalPath, DepotPath, RequiredChangeNumber), null, LogWriter) != 0)
{
LogWriter.WriteLine("Couldn't sync {0} to {1}", DepotPath, LocalPath);
return(false);
}
}
}
// Update the version
if (!TryWriteAllText(SyncVersionFile, RequiredSyncText))
{
LogWriter.WriteLine("Couldn't write sync text to {0}", SyncVersionFile);
return(false);
}
}
LogWriter.WriteLine();
// Build the command line for the synced application, including the sync path to monitor for updates
StringBuilder NewCommandLine = new StringBuilder(String.Format("-updatepath=\"{0}@>{1}\" -updatespawn=\"{2}\"{3}", SyncPath, RequiredChangeNumber, Assembly.GetEntryAssembly().Location, bUnstable? " -unstable" : ""));
foreach (string Arg in Args)
{
if (Arg.Contains(' '))
{
NewCommandLine.AppendFormat("\"{0}\"", Arg);
}
else
{
NewCommandLine.AppendFormat(" {0}", Arg);
}
}
// Release the mutex now so that the new application can start up
InstanceMutex.Close();
// Check the application exists
string ApplicationExe = Path.Combine(ApplicationFolder, "UnrealGameSync.exe");
if (!File.Exists(ApplicationExe))
{
LogWriter.WriteLine("Application was not synced from Perforce. Check you have access to {0}", SyncPath);
return(false);
}
// Spawn the application
LogWriter.WriteLine("Spawning {0} with command line: {1}", ApplicationExe, NewCommandLine.ToString());
using (Process ChildProcess = new Process())
{
ChildProcess.StartInfo.FileName = ApplicationExe;
ChildProcess.StartInfo.Arguments = NewCommandLine.ToString();
ChildProcess.StartInfo.UseShellExecute = false;
ChildProcess.StartInfo.CreateNoWindow = false;
if (!ChildProcess.Start())
{
LogWriter.WriteLine("Failed to start process");
return(false);
}
}
return(true);
}