public static bool TryLaunch()

in src/Microsoft.VisualStudio.SlnGen/VisualStudioLauncher.cs [29:110]
65 lines of code
11 McCabe index (conditional complexity)

        public static bool TryLaunch(ProgramArguments arguments, VisualStudioInstance visualStudioInstance, string solutionFileFullPath, ISlnGenLogger logger)
        {
            if (!arguments.ShouldLaunchVisualStudio())
            {
                return true;
            }

            if (!Utility.RunningOnWindows)
            {
                logger.LogWarning("Launching Visual Studio is not currently supported on your operating system.");

                return true;
            }

            string devEnvFullPath = arguments.GetDevEnvFullPath(visualStudioInstance);

            if (!devEnvFullPath.IsNullOrWhiteSpace())
            {
                visualStudioInstance = VisualStudioConfiguration.GetInstanceForPath(devEnvFullPath);
            }

            if (visualStudioInstance == null)
            {
                logger.LogError(
                    Program.CurrentDevelopmentEnvironment.IsCorext
                        ? $"Could not find a Visual Studio {Environment.GetEnvironmentVariable("VisualStudioVersion")} installation.  Please do one of the following:\n a) Specify a full path to devenv.exe via the -vs command-line argument\n b) Update your corext.config to specify a version of MSBuild.Corext that matches a Visual Studio version you have installed\n c) Install a version of Visual Studio that matches the version of MSBuild.Corext in your corext.config"
                        : "Could not find a Visual Studio installation.  Please run from a command window that has MSBuild.exe on the PATH or specify the full path to devenv.exe via the -vs command-line argument");

                return false;
            }

            if (visualStudioInstance.IsBuildTools)
            {
                logger.LogError("Cannot use a BuildTools instance of Visual Studio.");

                return false;
            }

            if (!File.Exists(devEnvFullPath))
            {
                logger.LogError($"The specified path to Visual Studio ({devEnvFullPath}) does not exist or is inaccessible.");

                return false;
            }

            CommandLineBuilder commandLineBuilder = new CommandLineBuilder();

            commandLineBuilder.AppendFileNameIfNotNull(solutionFileFullPath);

            if (!arguments.ShouldLoadProjectsInVisualStudio())
            {
                commandLineBuilder.AppendSwitch(DoNotLoadProjectsCommandLineArgument);
            }

            try
            {
                Process process = new Process
                {
                    StartInfo = new ProcessStartInfo
                    {
                        FileName = devEnvFullPath,
                        Arguments = commandLineBuilder.ToString(),
                        UseShellExecute = false,
                    },
                };

                logger.LogMessageHigh("Launching Visual Studio...");
                logger.LogMessageLow("  FileName = {0}", process.StartInfo.FileName);
                logger.LogMessageLow("  Arguments = {0}", process.StartInfo.Arguments);

                if (!process.Start())
                {
                    logger.LogError("Failed to launch Visual Studio.");
                }
            }
            catch (Exception e)
            {
                logger.LogError($"Failed to launch Visual Studio. {e.Message}");
            }

            return true;
        }