static LaunchResult InnerLaunch(TryResolveTool tryResolveTool, string tempFile, string targetFile)
{
if (ShouldExitLaunch(tryResolveTool, targetFile, out var tool, out var result))
{
DiffEngineTray.AddMove(tempFile, targetFile, null, null, false, null);
return(result.Value);
}
tool.CommandAndArguments(tempFile, targetFile, out var arguments, out var command);
if (ProcessCleanup.TryGetProcessInfo(command, out var processCommand))
{
if (tool.AutoRefresh)
{
DiffEngineTray.AddMove(tempFile, targetFile, tool.ExePath, arguments, tool.IsMdi !, processCommand.Process);
return(LaunchResult.AlreadyRunningAndSupportsRefresh);
}
KillIfMdi(tool, command);
}
if (MaxInstance.Reached())
{
DiffEngineTray.AddMove(tempFile, targetFile, tool.ExePath, arguments, tool.IsMdi !, null);
return(LaunchResult.TooManyRunningDiffTools);
}
var processId = LaunchProcess(tool, arguments);
DiffEngineTray.AddMove(tempFile, targetFile, tool.ExePath, arguments, !tool.IsMdi, processId);
return(LaunchResult.StartedNewInstance);
}
static async Task <LaunchResult> InnerLaunch(ResolvedTool tool, string tempFile, string targetFile)
{
var arguments = tool.Arguments(tempFile, targetFile);
var command = tool.BuildCommand(tempFile, targetFile);
if (ProcessCleanup.TryGetProcessInfo(command, out var processCommand))
{
if (tool.AutoRefresh)
{
await DiffEngineTray.AddMove(tempFile, targetFile, tool.ExePath, arguments, tool.IsMdi !, processCommand.Process);
return(LaunchResult.AlreadyRunningAndSupportsRefresh);
}
if (!tool.IsMdi)
{
ProcessCleanup.Kill(command);
}
}
var instanceCount = Interlocked.Increment(ref launchedInstances);
if (instanceCount > maxInstancesToLaunch)
{
await DiffEngineTray.AddMove(tempFile, targetFile, tool.ExePath, arguments, tool.IsMdi !, null);
return(LaunchResult.TooManyRunningDiffTools);
}
try
{
var startInfo = new ProcessStartInfo(tool.ExePath, arguments)
{
UseShellExecute = true
};
using var process = Process.Start(startInfo);
if (process == null)
{
var message = $@"Failed to launch diff tool.
{tool.ExePath} {arguments}";
throw new Exception(message);
}
await DiffEngineTray.AddMove(tempFile, targetFile, tool.ExePath, arguments, !tool.IsMdi, process.Id);
return(LaunchResult.StartedNewInstance);
}
catch (Exception exception)
{
var message = $@"Failed to launch diff tool.
{tool.ExePath} {arguments}";
throw new Exception(message, exception);
}
}
