public override async Task RunAsync()

in src/Cli/func/Actions/LocalActions/PackAction.cs [65:121]
48 lines of code
9 McCabe index (conditional complexity)

        public override async Task RunAsync()
        {
            var functionAppRoot = string.IsNullOrEmpty(FolderName)
                ? Path.Combine(Environment.CurrentDirectory, FolderName)
                : ScriptHostHelpers.GetFunctionAppRootDirectory(Environment.CurrentDirectory);

            string outputPath;
            if (string.IsNullOrEmpty(OutputPath))
            {
                outputPath = Path.Combine(Environment.CurrentDirectory, $"{Path.GetFileName(functionAppRoot)}");
            }
            else
            {
                outputPath = Path.Combine(Environment.CurrentDirectory, OutputPath);
                if (FileSystemHelpers.DirectoryExists(outputPath))
                {
                    outputPath = Path.Combine(outputPath, $"{Path.GetFileName(functionAppRoot)}");
                }
            }

            if (!FileSystemHelpers.FileExists(Path.Combine(functionAppRoot, ScriptConstants.HostMetadataFileName)))
            {
                throw new CliException($"Can't find {Path.Combine(functionAppRoot, ScriptConstants.HostMetadataFileName)}");
            }

            var workerRuntime = WorkerRuntimeLanguageHelper.GetCurrentWorkerRuntimeLanguage(_secretsManager);
            outputPath += Squashfs ? ".squashfs" : ".zip";
            if (FileSystemHelpers.FileExists(outputPath))
            {
                ColoredConsole.WriteLine($"Deleting the old package {outputPath}");
                try
                {
                    FileSystemHelpers.FileDelete(outputPath);
                }
                catch (Exception)
                {
                    throw new CliException($"Could not delete {outputPath}");
                }
            }

            // Restore all valid extensions
            var installExtensionAction = new InstallExtensionAction(_secretsManager, false);
            await installExtensionAction.RunAsync();

            bool useGoZip = EnvironmentHelper.GetEnvironmentVariableAsBool(Constants.UseGoZip);
            TelemetryHelpers.AddCommandEventToDictionary(TelemetryCommandEvents, "UseGoZip", useGoZip.ToString());

            var stream = await ZipHelper.GetAppZipFile(functionAppRoot, BuildNativeDeps, noBuild: false, buildOption: BuildOption.Default, additionalPackages: AdditionalPackages);

            if (Squashfs)
            {
                stream = await PythonHelpers.ZipToSquashfsStream(stream);
            }

            ColoredConsole.WriteLine($"Creating a new package {outputPath}");
            await FileSystemHelpers.WriteToFile(outputPath, stream);
        }