Constants.cs

using System;

namespace GitHub.Runner.Common
{
    public enum WellKnownDirectory
    {
        Bin,
        Diag,
        Externals,
        Root,
        Actions,
        Temp,
        Tools,
        Update,
        Work,
    }

    public enum WellKnownConfigFile
    {
        Runner,
        MigratedRunner,
        Credentials,
        MigratedCredentials,
        RSACredentials,
        Service,
        CredentialStore,
        Certificates,
        Options,
        SetupInfo,
        Telemetry
    }

    public static class Constants
    {
        /// <summary>Path environment variable name.</summary>
#if OS_WINDOWS
        public static readonly string PathVariable = "Path";
#else
        public static readonly string PathVariable = "PATH";
#endif

        public static string ProcessTrackingId = "RUNNER_TRACKING_ID";
        public static string PluginTracePrefix = "##[plugin.trace]";
        public static readonly int RunnerDownloadRetryMaxAttempts = 3;

        public static readonly int CompositeActionsMaxDepth = 9;

        // This enum is embedded within the Constants class to make it easier to reference and avoid
        // ambiguous type reference with System.Runtime.InteropServices.OSPlatform and System.Runtime.InteropServices.Architecture
        public enum OSPlatform
        {
            OSX,
            Linux,
            Windows
        }

        public enum Architecture
        {
            X86,
            X64,
            Arm,
            Arm64,
            Ppc64le,  // PowerPC 64-bit Little Endian (IBM Power Systems)
            S390x     // IBM Z mainframe architecture
        }

        public static class Runner
        {
#if OS_LINUX
            public static readonly OSPlatform Platform = OSPlatform.Linux;
#elif OS_OSX
            public static readonly OSPlatform Platform = OSPlatform.OSX;
#elif OS_WINDOWS
            public static readonly OSPlatform Platform = OSPlatform.Windows;
#else
            public static readonly OSPlatform Platform = OSPlatform.Linux;
#endif

#if X86
            public static readonly Architecture PlatformArchitecture = Architecture.X86;
#elif X64
            public static readonly Architecture PlatformArchitecture = Architecture.X64;
#elif ARM
            public static readonly Architecture PlatformArchitecture = Architecture.Arm;
#elif ARM64
            public static readonly Architecture PlatformArchitecture = Architecture.Arm64;
#elif PPC64LE
            // PowerPC 64-bit LE: Detected when built with PPC64LE symbol (set by Directory.Build.props)
            public static readonly Architecture PlatformArchitecture = Architecture.Ppc64le;
#elif S390X
            // IBM Z mainframe: Detected when built with S390X symbol (set by Directory.Build.props)
            public static readonly Architecture PlatformArchitecture = Architecture.S390x;
#else
            public static readonly Architecture PlatformArchitecture = Architecture.X64;
#endif

            public static readonly TimeSpan ExitOnUnloadTimeout = TimeSpan.FromSeconds(30);

            public static class CommandLine
            {
                //if you are adding a new arg, please make sure you update the
                //validOptions dictionary as well present in the CommandSettings.cs
                public static class Args
                {
                    public static readonly string Auth = "auth";
                    public static readonly string Labels = "labels";
                    public static readonly string MonitorSocketAddress = "monitorsocketaddress";
                    public static readonly string Name = "name";
                    public static readonly string RunnerGroup = "runnergroup";
                    public static readonly string StartupType = "startuptype";
                    public static readonly string Url = "url";
                    public static readonly string UserName = "username";
                    public static readonly string WindowsLogonAccount = "windowslogonaccount";
                    public static readonly string Work = "work";

                    // Secret args. Must be added to the "Secrets" getter as well.
                    public static readonly string Token = "token";
                    public static readonly string PAT = "pat";
                    public static readonly string WindowsLogonPassword = "windowslogonpassword";
                    public static readonly string JitConfig = "jitconfig";
                    public static string[] Secrets => new[]
                    {
                        PAT,
                        Token,
                        WindowsLogonPassword,
                        JitConfig,
                    };
                }

                public static class Commands
                {
                    public static readonly string Configure = "configure";
                    public static readonly string Remove = "remove";
                    public static readonly string Run = "run";
                    public static readonly string Warmup = "warmup";
                }

                //if you are adding a new flag, please make sure you update the
                //validOptions dictionary as well present in the CommandSettings.cs
                public static class Flags
                {
                    public static readonly string Check = "check";
                    public static readonly string Commit = "commit";
                    public static readonly string Ephemeral = "ephemeral";
                    public static readonly string GenerateServiceConfig = "generateServiceConfig";
                    public static readonly string Help = "help";
                    public static readonly string Local = "local";
                    public static readonly string NoDefaultLabels = "no-default-labels";
                    public static readonly string Replace = "replace";
                    public static readonly string DisableUpdate = "disableupdate";
                    public static readonly string Once = "once"; // Keep this around since customers still relies on it
                    public static readonly string RunAsService = "runasservice";
                    public static readonly string Unattended = "unattended";
                    public static readonly string Version = "version";
                }
            }

            public static class ReturnCode
            {
                public const int Success = 0;
                public const int TerminatedError = 1;
                public const int RetryableError = 2;
                public const int RunnerUpdating = 3;
                public const int RunOnceRunnerUpdating = 4;
                public const int SessionConflict = 5;
                // Temporary error code to indicate that the runner configuration has been refreshed
                // and the runner should be restarted. This is a temporary code and will be removed in the future after
                // the runner is migrated to runner admin.
                public const int RunnerConfigurationRefreshed = 6;
            }

            public static class Features
            {
                public static readonly string DiskSpaceWarning = "runner.diskspace.warning";
                public static readonly string LogTemplateErrorsAsDebugMessages = "DistributedTask.LogTemplateErrorsAsDebugMessages";
                public static readonly string UseContainerPathForTemplate = "DistributedTask.UseContainerPathForTemplate";
                public static readonly string AllowRunnerContainerHooks = "DistributedTask.AllowRunnerContainerHooks";
                public static readonly string AddCheckRunIdToJobContext = "actions_add_check_run_id_to_job_context";
                public static readonly string DisplayHelpfulActionsDownloadErrors = "actions_display_helpful_actions_download_errors";
                public static readonly string SnapshotPreflightHostedRunnerCheck = "actions_snapshot_preflight_hosted_runner_check";
                public static readonly string SnapshotPreflightImageGenPoolCheck = "actions_snapshot_preflight_image_gen_pool_check";
                public static readonly string CompareWorkflowParser = "actions_runner_compare_workflow_parser";
                public static readonly string ServiceContainerCommand = "actions_service_container_command";
                public static readonly string SetOrchestrationIdEnvForActions = "actions_set_orchestration_id_env_for_actions";
                public static readonly string SendJobLevelAnnotations = "actions_send_job_level_annotations";
                public static readonly string EmitCompositeMarkers = "actions_runner_emit_composite_markers";
            }

            // Node version migration related constants
            public static class NodeMigration
            {
                // Node versions
                public static readonly string Node20 = "node20";
                public static readonly string Node24 = "node24";

                // Environment variables for controlling node version selection
                public static readonly string ForceNode24Variable = "FORCE_JAVASCRIPT_ACTIONS_TO_NODE24";
                public static readonly string AllowUnsecureNodeVersionVariable = "ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION";

                // Feature flags for controlling the migration phases
                public static readonly string UseNode24ByDefaultFlag = "actions.runner.usenode24bydefault";
                public static readonly string RequireNode24Flag = "actions.runner.requirenode24";
                public static readonly string WarnOnNode20Flag = "actions.runner.warnonnode20";

                // Blog post URL for Node 20 deprecation
                public static readonly string Node20DeprecationUrl = "https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/";
            }

            public static readonly string InternalTelemetryIssueDataKey = "_internal_telemetry";
            public static readonly Guid TelemetryRecordId = new Guid("11111111-1111-1111-1111-111111111111");
            public static readonly string WorkerCrash = "WORKER_CRASH";
            public static readonly string LowDiskSpace = "LOW_DISK_SPACE";
            public static readonly string UnsupportedCommand = "UNSUPPORTED_COMMAND";
            public static readonly string ResultsUploadFailure = "RESULTS_UPLOAD_FAILURE";
            public static readonly string UnsupportedCommandMessage = "The `{0}` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/";
            public static readonly string UnsupportedCommandMessageDisabled = "The `{0}` command is disabled. Please upgrade to using Environment Files or opt into unsecure command execution by setting the `ACTIONS_ALLOW_UNSECURE_COMMANDS` environment variable to `true`. For more information see: https://github.blog/changelog/2020-10-01-github-actions-deprecating-set-env-and-add-path-commands/";
            public static readonly string UnsupportedStopCommandTokenDisabled = "You cannot use a endToken that is an empty string, the string 'pause-logging', or another workflow command. For more information see: https://docs.github.com/actions/learn-github-actions/workflow-commands-for-github-actions#example-stopping-and-starting-workflow-commands or opt into insecure command execution by setting the `ACTIONS_ALLOW_UNSECURE_STOPCOMMAND_TOKENS` environment variable to `true`.";
            public static readonly string UnsupportedSummarySize = "$GITHUB_STEP_SUMMARY upload aborted, supports content up to a size of {0}k, got {1}k. For more information see: https://docs.github.com/actions/using-workflows/workflow-commands-for-github-actions#adding-a-markdown-summary";
            public static readonly string SummaryUploadError = "$GITHUB_STEP_SUMMARY upload aborted, an error occurred when uploading the summary. For more information see: https://docs.github.com/actions/using-workflows/workflow-commands-for-github-actions#adding-a-markdown-summary";
        }

        public static class RunnerEvent
        {
            public static readonly string Register = "register";
            public static readonly string Remove = "remove";
        }

        public static class Pipeline
        {
            public static class Path
            {
                public static readonly string PipelineMappingDirectory = "_PipelineMapping";
                public static readonly string TrackingConfigFile = "PipelineFolder.json";
            }
        }

        public static class Configuration
        {
            public static readonly string OAuthAccessToken = "OAuthAccessToken";
            public static readonly string OAuth = "OAuth";
        }

        public static class Expressions
        {
            public static readonly string Always = "always";
            public static readonly string Cancelled = "cancelled";
            public static readonly string Failure = "failure";
            public static readonly string Success = "success";
        }

        public static class Hooks
        {
            public static readonly string JobStartedStepName = "Set up runner";
            public static readonly string JobCompletedStepName = "Complete runner";
            public static readonly string ContainerHooksPath = "ACTIONS_RUNNER_CONTAINER_HOOKS";
        }

        public static class Path
        {
            public static readonly string ActionsDirectory = "_actions";
            public static readonly string ActionManifestYmlFile = "action.yml";
            public static readonly string ActionManifestYamlFile = "action.yaml";
            public static readonly string BinDirectory = "bin";
            public static readonly string DiagDirectory = "_diag";
            public static readonly string ExternalsDirectory = "externals";
            public static readonly string RunnerDiagnosticLogPrefix = "Runner_";
            public static readonly string TempDirectory = "_temp";
            public static readonly string ToolDirectory = "_tool";
            public static readonly string UpdateDirectory = "_update";
            public static readonly string WorkDirectory = "_work";
            public static readonly string WorkerDiagnosticLogPrefix = "Worker_";
        }

        // Related to definition variables.
        public static class Variables
        {
            public static readonly string MacroPrefix = "$(";
            public static readonly string MacroSuffix = ")";

            public static class Actions
            {
                //
                // Keep alphabetical
                //
                public static readonly string AllowUnsupportedCommands = "ACTIONS_ALLOW_UNSECURE_COMMANDS";
                public static readonly string AllowUnsupportedStopCommandTokens = "ACTIONS_ALLOW_UNSECURE_STOPCOMMAND_TOKENS";
                public static readonly string RequireJobContainer = "ACTIONS_RUNNER_REQUIRE_JOB_CONTAINER";
                public static readonly string RunnerDebug = "ACTIONS_RUNNER_DEBUG";
                public static readonly string StepDebug = "ACTIONS_STEP_DEBUG";
            }

            public static class Agent
            {
                public static readonly string ToolsDirectory = "agent.ToolsDirectory";

                // Set this env var to "nodeXY" to downgrade the node version for internal functions (e.g hashfiles). This does NOT affect the version of node actions.
                public static readonly string ForcedInternalNodeVersion = "ACTIONS_RUNNER_FORCED_INTERNAL_NODE_VERSION";
                public static readonly string ForcedActionsNodeVersion = "ACTIONS_RUNNER_FORCE_ACTIONS_NODE_VERSION";
                public static readonly string PrintLogToStdout = "ACTIONS_RUNNER_PRINT_LOG_TO_STDOUT";
                public static readonly string ActionArchiveCacheDirectory = "ACTIONS_RUNNER_ACTION_ARCHIVE_CACHE";
                public static readonly string SymlinkCachedActions = "ACTIONS_RUNNER_SYMLINK_CACHED_ACTIONS";
                public static readonly string EmitCompositeMarkers = "ACTIONS_RUNNER_EMIT_COMPOSITE_MARKERS";
            }

            public static class System
            {
                //
                // Keep alphabetical
                //
                public static readonly string AccessToken = "system.accessToken";
                public static readonly string Culture = "system.culture";
                public static readonly string PhaseDisplayName = "system.phaseDisplayName";
                public static readonly string JobRequestType = "system.jobRequestType";
                public static readonly string OrchestrationId = "system.orchestrationId";
            }
        }

        public static class OperatingSystem
        {
            public static readonly int Windows11BuildVersion = 22000;
            // Both windows 10 and windows 11 share the same Major Version 10, need to use the build version to differentiate
            public static readonly int Windows11MajorVersion = 10;
        }
    }
}