static bool ShouldExitLaunch(
TryResolveTool tryResolveTool,
string targetFile,
[NotNullWhen(false)] out ResolvedTool?tool,
[NotNullWhen(true)] out LaunchResult?result)
{
if (Disabled)
{
result = LaunchResult.Disabled;
tool = null;
return(true);
}
if (!tryResolveTool(out tool))
{
result = LaunchResult.NoDiffToolFound;
return(true);
}
if (!TryCreate(tool, targetFile))
{
result = LaunchResult.NoEmptyFileForExtension;
return(true);
}
result = null;
return(false);
}
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);
}
