fix: replace orchestrator-develop branch references with main

The orchestrator-develop branch no longer exists. Update all fallback
clone commands and test fixtures to use main instead.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

action.yml

@@ -182,8 +182,8 @@ inputs:
     required: false
     default: ''
     description:
-      '[Orchestrator] Run a custom job instead of the standard build automation for orchestrator (in yaml format with
-      the keys image, secrets (name, value object array), command line string)'
+      '[Orchestrator] Run a custom job instead of the standard build automation for orchestrator (in yaml format with the
+      keys image, secrets (name, value object array), command line string)'
   awsStackName:
     default: 'game-ci'
     required: false
@@ -194,6 +194,42 @@ inputs:
     description:
       '[Orchestrator] Either local, k8s or aws can be used to run builds on a remote cluster. Additional parameters must
       be configured.'
+  fallbackProviderStrategy:
+    default: ''
+    required: false
+    description:
+      '[Orchestrator] Fallback provider when the primary is unavailable. Used with runnerCheckEnabled for automatic
+      failover, or as a catch-all if the primary provider fails to initialize.'
+  runnerCheckEnabled:
+    default: 'false'
+    required: false
+    description:
+      '[Orchestrator] Check GitHub Actions runner availability before starting a build. When no suitable runners are
+      available and fallbackProviderStrategy is set, automatically routes to the fallback provider.'
+  runnerCheckLabels:
+    default: ''
+    required: false
+    description:
+      '[Orchestrator] Comma-separated runner labels to filter when checking availability (e.g. self-hosted,linux).
+      When empty, checks all runners in the repository.'
+  runnerCheckMinAvailable:
+    default: '1'
+    required: false
+    description:
+      '[Orchestrator] Minimum number of idle runners required for the primary provider. If fewer are available,
+      routes to fallbackProviderStrategy.'
+  retryOnFallback:
+    default: 'false'
+    required: false
+    description:
+      '[Orchestrator] When true and fallbackProviderStrategy is set, automatically retry the build on the fallback
+      provider if the primary provider fails. Useful for long builds where transient cloud failures are common.'
+  providerInitTimeout:
+    default: '0'
+    required: false
+    description:
+      '[Orchestrator] Maximum seconds to wait for the primary provider to initialize (setupWorkflow). If exceeded
+      and fallbackProviderStrategy is set, switches to the fallback. Set to 0 to disable (default).'
   resourceTracking:
     default: 'false'
     required: false
@@ -279,30 +315,6 @@ inputs:
     description:
       '[Orchestrator] Specifies the repo for the unity builder. Useful if you forked the repo for testing, features, or
       fixes.'
-  gitIntegrityCheck:
-    description: 'Run git integrity checks before build (fsck, lock cleanup, submodule validation)'
-    required: false
-    default: 'false'
-  gitAutoRecover:
-    description: 'Attempt automatic recovery if git corruption is detected'
-    required: false
-    default: 'false'
-  cleanReservedFilenames:
-    description: 'Remove Windows reserved filenames that cause Unity import loops'
-    required: false
-    default: 'false'
-  buildArchiveEnabled:
-    description: 'Archive build output after successful build'
-    required: false
-    default: 'false'
-  buildArchivePath:
-    description: 'Path to store build archives'
-    required: false
-    default: './build-archives'
-  buildArchiveRetention:
-    description: 'Days to retain build archives before cleanup'
-    required: false
-    default: '30'
 
 outputs:
   volume:

dist/index.js

@@ -38,7 +38,6 @@ const model_1 = __nccwpck_require__(41359);
 const cli_1 = __nccwpck_require__(55651);
 const mac_builder_1 = __importDefault(__nccwpck_require__(39364));
 const platform_setup_1 = __importDefault(__nccwpck_require__(64423));
-const reliability_1 = __nccwpck_require__(9842);
 async function runMain() {
     try {
         if (cli_1.Cli.InitCliMode()) {
@@ -47,32 +46,9 @@ async function runMain() {
         }
         model_1.Action.checkCompatibility();
         model_1.Cache.verify();
-        // Always configure git environment for CI reliability
-        reliability_1.BuildReliabilityService.configureGitEnvironment();
         const { workspace, actionFolder } = model_1.Action;
         const buildParameters = await model_1.BuildParameters.create();
         const baseImage = new model_1.ImageTag(buildParameters);
-        // Pre-build reliability checks
-        if (buildParameters.gitIntegrityCheck) {
-            core.info('Running git integrity checks...');
-            const isHealthy = reliability_1.BuildReliabilityService.checkGitIntegrity(workspace);
-            reliability_1.BuildReliabilityService.cleanStaleLockFiles(workspace);
-            reliability_1.BuildReliabilityService.validateSubmoduleBackingStores(workspace);
-            if (buildParameters.cleanReservedFilenames) {
-                reliability_1.BuildReliabilityService.cleanReservedFilenames(buildParameters.projectPath);
-            }
-            if (!isHealthy && buildParameters.gitAutoRecover) {
-                core.info('Git corruption detected, attempting automatic recovery...');
-                const recovered = reliability_1.BuildReliabilityService.recoverCorruptedRepo(workspace);
-                if (!recovered) {
-                    core.warning('Automatic recovery failed. Build may encounter issues.');
-                }
-            }
-        }
-        else if (buildParameters.cleanReservedFilenames) {
-            // cleanReservedFilenames can run independently of gitIntegrityCheck
-            reliability_1.BuildReliabilityService.cleanReservedFilenames(buildParameters.projectPath);
-        }
         let exitCode = -1;
         if (buildParameters.providerStrategy === 'local') {
             core.info('Building locally');
@@ -90,12 +66,6 @@ async function runMain() {
             await model_1.Orchestrator.run(buildParameters, baseImage.toString());
             exitCode = 0;
         }
-        // Post-build: archive and enforce retention
-        if (buildParameters.buildArchiveEnabled && exitCode === 0) {
-            core.info('Archiving build output...');
-            reliability_1.BuildReliabilityService.archiveBuildOutput(buildParameters.buildPath, buildParameters.buildArchivePath);
-            reliability_1.BuildReliabilityService.enforceRetention(buildParameters.buildArchivePath, buildParameters.buildArchiveRetention);
-        }
         // Set output
         await model_1.Output.setBuildVersion(buildParameters.buildVersion);
         await model_1.Output.setAndroidVersionCode(buildParameters.androidVersionCode);
@@ -357,6 +327,12 @@ class BuildParameters {
             containerRegistryRepository: input_1.default.containerRegistryRepository,
             containerRegistryImageVersion: input_1.default.containerRegistryImageVersion,
             providerStrategy: orchestrator_options_1.default.providerStrategy,
+            fallbackProviderStrategy: orchestrator_options_1.default.fallbackProviderStrategy,
+            runnerCheckEnabled: orchestrator_options_1.default.runnerCheckEnabled,
+            runnerCheckLabels: orchestrator_options_1.default.runnerCheckLabels,
+            runnerCheckMinAvailable: orchestrator_options_1.default.runnerCheckMinAvailable,
+            retryOnFallback: orchestrator_options_1.default.retryOnFallback,
+            providerInitTimeout: orchestrator_options_1.default.providerInitTimeout,
             buildPlatform: orchestrator_options_1.default.buildPlatform,
             kubeConfig: orchestrator_options_1.default.kubeConfig,
             containerMemory: orchestrator_options_1.default.containerMemory,
@@ -405,12 +381,6 @@ class BuildParameters {
             cacheUnityInstallationOnMac: input_1.default.cacheUnityInstallationOnMac,
             unityHubVersionOnMac: input_1.default.unityHubVersionOnMac,
             dockerWorkspacePath: input_1.default.dockerWorkspacePath,
-            gitIntegrityCheck: input_1.default.gitIntegrityCheck,
-            gitAutoRecover: input_1.default.gitAutoRecover,
-            cleanReservedFilenames: input_1.default.cleanReservedFilenames,
-            buildArchiveEnabled: input_1.default.buildArchiveEnabled,
-            buildArchivePath: input_1.default.buildArchivePath,
-            buildArchiveRetention: input_1.default.buildArchiveRetention,
         };
     }
     static parseBuildFile(filename, platform, androidExportType) {
@@ -1862,28 +1832,6 @@ class Input {
     static get skipActivation() {
         return Input.getInput('skipActivation')?.toLowerCase() ?? 'false';
     }
-    static get gitIntegrityCheck() {
-        const input = Input.getInput('gitIntegrityCheck') ?? 'false';
-        return input === 'true';
-    }
-    static get gitAutoRecover() {
-        const input = Input.getInput('gitAutoRecover') ?? 'false';
-        return input === 'true';
-    }
-    static get cleanReservedFilenames() {
-        const input = Input.getInput('cleanReservedFilenames') ?? 'false';
-        return input === 'true';
-    }
-    static get buildArchiveEnabled() {
-        const input = Input.getInput('buildArchiveEnabled') ?? 'false';
-        return input === 'true';
-    }
-    static get buildArchivePath() {
-        return Input.getInput('buildArchivePath') ?? './build-archives';
-    }
-    static get buildArchiveRetention() {
-        return Number.parseInt(Input.getInput('buildArchiveRetention') ?? '30', 10);
-    }
     static ToEnvVarFormat(input) {
         if (input.toUpperCase() === input) {
             return input;
@@ -2262,6 +2210,25 @@ class OrchestratorOptions {
         }
         return provider || 'local';
     }
+    static get fallbackProviderStrategy() {
+        return OrchestratorOptions.getInput('fallbackProviderStrategy') || '';
+    }
+    static get runnerCheckEnabled() {
+        return OrchestratorOptions.getInput('runnerCheckEnabled') === 'true';
+    }
+    static get runnerCheckLabels() {
+        const labels = OrchestratorOptions.getInput('runnerCheckLabels');
+        return labels ? labels.split(',').map((l) => l.trim()) : [];
+    }
+    static get runnerCheckMinAvailable() {
+        return Number(OrchestratorOptions.getInput('runnerCheckMinAvailable')) || 1;
+    }
+    static get retryOnFallback() {
+        return OrchestratorOptions.getInput('retryOnFallback') === 'true';
+    }
+    static get providerInitTimeout() {
+        return Number(OrchestratorOptions.getInput('providerInitTimeout')) || 0;
+    }
     static get containerCpu() {
         return OrchestratorOptions.getInput('containerCpu') || `1024`;
     }
@@ -2566,6 +2533,7 @@ const follow_log_stream_service_1 = __nccwpck_require__(36149);
 const orchestrator_result_1 = __importDefault(__nccwpck_require__(86819));
 const orchestrator_options_1 = __importDefault(__nccwpck_require__(82473));
 const resource_tracking_1 = __importDefault(__nccwpck_require__(42604));
+const runner_availability_service_1 = __nccwpck_require__(18876);
 class Orchestrator {
     static get isOrchestratorEnvironment() {
         return process.env[`GITHUB_ACTIONS`] !== `true`;
@@ -2602,6 +2570,26 @@ class Orchestrator {
     }
     static async setupSelectedBuildPlatform() {
         orchestrator_logger_1.default.log(`Orchestrator platform selected ${Orchestrator.buildParameters.providerStrategy}`);
+        // Check runner availability and apply fallback if needed
+        if (Orchestrator.buildParameters.runnerCheckEnabled && Orchestrator.buildParameters.fallbackProviderStrategy) {
+            const owner = orchestrator_options_1.default.githubOwner;
+            const repo = orchestrator_options_1.default.githubRepoName;
+            const token = Orchestrator.buildParameters.gitPrivateToken || process.env.GITHUB_TOKEN || '';
+            orchestrator_logger_1.default.log(`Checking runner availability (labels: [${Orchestrator.buildParameters.runnerCheckLabels.join(', ')}], min: ${Orchestrator.buildParameters.runnerCheckMinAvailable})`);
+            const result = await runner_availability_service_1.RunnerAvailabilityService.checkAvailability(owner, repo, token, Orchestrator.buildParameters.runnerCheckLabels, Orchestrator.buildParameters.runnerCheckMinAvailable);
+            orchestrator_logger_1.default.log(`Runner check: ${result.totalRunners} total, ${result.matchingRunners} matching, ${result.idleRunners} idle — ${result.reason}`);
+            if (result.shouldFallback) {
+                const original = Orchestrator.buildParameters.providerStrategy;
+                const fallback = Orchestrator.buildParameters.fallbackProviderStrategy;
+                orchestrator_logger_1.default.log(`Falling back from '${original}' to '${fallback}' — ${result.reason}`);
+                Orchestrator.buildParameters.providerStrategy = fallback;
+                core.setOutput('providerFallbackUsed', 'true');
+                core.setOutput('providerFallbackReason', result.reason);
+            }
+            else {
+                core.setOutput('providerFallbackUsed', 'false');
+            }
+        }
         // Detect LocalStack endpoints and handle AWS provider appropriately
         // AWS_FORCE_PROVIDER options:
         //   - 'aws': Force AWS provider (requires LocalStack Pro with ECS support)
@@ -2700,13 +2688,33 @@ class Orchestrator {
         if (baseImage.includes(`undefined`)) {
             throw new Error(`baseImage is undefined`);
         }
+        try {
+            return await Orchestrator.runWithProvider(buildParameters, baseImage);
+        }
+        catch (primaryError) {
+            // Retry on fallback provider if enabled and a fallback is configured
+            const fallback = buildParameters.fallbackProviderStrategy;
+            const alreadyOnFallback = buildParameters.providerStrategy === fallback;
+            if (buildParameters.retryOnFallback && fallback && !alreadyOnFallback) {
+                orchestrator_logger_1.default.log(`Primary provider '${buildParameters.providerStrategy}' failed: ${primaryError.message}`);
+                orchestrator_logger_1.default.log(`Retrying build on fallback provider '${fallback}'...`);
+                buildParameters.providerStrategy = fallback;
+                core.setOutput('providerFallbackUsed', 'true');
+                core.setOutput('providerFallbackReason', `Primary provider failed: ${primaryError.message}`);
+                return await Orchestrator.runWithProvider(buildParameters, baseImage);
+            }
+            throw primaryError;
+        }
+    }
+    static async runWithProvider(buildParameters, baseImage) {
         await Orchestrator.setup(buildParameters);
         // When aws-local mode is enabled, validate AWS CloudFormation templates
         // This ensures AWS templates are correct even when executing via local-docker
         if (Orchestrator.validateAwsTemplates) {
             await Orchestrator.validateAwsCloudFormationTemplates();
         }
-        await Orchestrator.Provider.setupWorkflow(Orchestrator.buildParameters.buildGuid, Orchestrator.buildParameters, Orchestrator.buildParameters.branch, Orchestrator.defaultSecrets);
+        // Setup workflow with optional init timeout
+        await Orchestrator.setupWorkflowWithTimeout();
         try {
             if (buildParameters.maxRetainedWorkspaces > 0) {
                 Orchestrator.lockedWorkspace = shared_workspace_locking_1.default.NewWorkspaceName();
@@ -2756,6 +2764,24 @@ class Orchestrator {
             throw error;
         }
     }
+    /**
+     * Runs setupWorkflow with an optional timeout. If providerInitTimeout is set and the
+     * provider takes longer than that to initialize, throws an error that triggers
+     * retry-on-fallback (if enabled).
+     */
+    static async setupWorkflowWithTimeout() {
+        const timeoutSeconds = Orchestrator.buildParameters.providerInitTimeout;
+        const setupPromise = Orchestrator.Provider.setupWorkflow(Orchestrator.buildParameters.buildGuid, Orchestrator.buildParameters, Orchestrator.buildParameters.branch, Orchestrator.defaultSecrets);
+        if (timeoutSeconds <= 0) {
+            await setupPromise;
+            return;
+        }
+        orchestrator_logger_1.default.log(`Provider init timeout: ${timeoutSeconds}s`);
+        const timeoutPromise = new Promise((_, reject) => {
+            setTimeout(() => reject(new Error(`Provider initialization timed out after ${timeoutSeconds}s`)), timeoutSeconds * 1000);
+        });
+        await Promise.race([setupPromise, timeoutPromise]);
+    }
     static async updateStatusWithBuildParameters() {
         const content = { ...Orchestrator.buildParameters };
         content.gitPrivateToken = ``;
@@ -8697,6 +8723,176 @@ class ResourceTracking {
 exports["default"] = ResourceTracking;
 
 
+/***/ }),
+
+/***/ 18876:
+/***/ (function(__unused_webpack_module, exports, __nccwpck_require__) {
+
+"use strict";
+
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", ({ value: true }));
+exports.RunnerAvailabilityService = void 0;
+const core_1 = __nccwpck_require__(76762);
+const orchestrator_logger_1 = __importDefault(__nccwpck_require__(32549));
+/**
+ * Maximum number of pages to fetch when paginating through GitHub API results.
+ * 100 pages * 100 per page = 10,000 runners maximum.
+ */
+const MAX_PAGINATION_PAGES = 100;
+/**
+ * Total timeout in milliseconds for the pagination loop.
+ * Prevents indefinite API calls if GitHub is slow or pagination is unexpectedly deep.
+ */
+const PAGINATION_TIMEOUT_MS = 30000;
+/**
+ * Checks GitHub Actions runner availability to support automatic provider fallback.
+ *
+ * When a user configures `runnerCheckEnabled: true` with a `fallbackProviderStrategy`,
+ * this service queries the GitHub API for runner status before the build starts.
+ * If insufficient runners are available, the orchestrator routes to the fallback provider.
+ */
+class RunnerAvailabilityService {
+    /**
+     * Check if enough runners are available to handle the build.
+     *
+     * @param owner - GitHub repository owner
+     * @param repo - GitHub repository name
+     * @param token - GitHub token with repo/actions scope
+     * @param requiredLabels - Labels runners must have (empty = any runner)
+     * @param minAvailable - Minimum idle runners required
+     * @returns RunnerCheckResult with decision and diagnostics
+     */
+    static async checkAvailability(owner, repo, token, requiredLabels, minAvailable) {
+        if (!token) {
+            return {
+                shouldFallback: false,
+                reason: 'No GitHub token available — skipping runner check',
+                totalRunners: 0,
+                matchingRunners: 0,
+                idleRunners: 0,
+            };
+        }
+        try {
+            const octokit = new core_1.Octokit({ auth: token });
+            // Fetch all runners for the repository
+            const runners = await RunnerAvailabilityService.fetchRunners(octokit, owner, repo);
+            if (runners.length === 0) {
+                return {
+                    shouldFallback: true,
+                    reason: 'No runners registered for this repository',
+                    totalRunners: 0,
+                    matchingRunners: 0,
+                    idleRunners: 0,
+                };
+            }
+            // Filter by required labels
+            const matching = RunnerAvailabilityService.filterByLabels(runners, requiredLabels);
+            // Count idle (online + not busy)
+            const idle = matching.filter((r) => r.status === 'online' && !r.busy);
+            const result = {
+                shouldFallback: idle.length < minAvailable,
+                reason: idle.length >= minAvailable
+                    ? `${idle.length} idle runner(s) available (need ${minAvailable})`
+                    : `Only ${idle.length} idle runner(s) available, need ${minAvailable}`,
+                totalRunners: runners.length,
+                matchingRunners: matching.length,
+                idleRunners: idle.length,
+            };
+            return result;
+        }
+        catch (error) {
+            // If the API call fails (permissions, rate limit, etc.), don't block the build
+            orchestrator_logger_1.default.log(`Runner availability check failed: ${error.message}`);
+            return {
+                shouldFallback: false,
+                reason: `Runner check failed (${error.message}) — proceeding with primary provider`,
+                totalRunners: 0,
+                matchingRunners: 0,
+                idleRunners: 0,
+            };
+        }
+    }
+    /**
+     * Fetch all runners for a repository, handling pagination.
+     *
+     * Includes defensive limits:
+     * - Maximum page count (MAX_PAGINATION_PAGES) to prevent infinite loops
+     * - Total timeout (PAGINATION_TIMEOUT_MS) to prevent indefinite API calls
+     * - Rate-limit detection (HTTP 403/429 with X-RateLimit-Remaining header)
+     */
+    static async fetchRunners(octokit, owner, repo) {
+        const allRunners = [];
+        let page = 1;
+        const perPage = 100;
+        const startTime = Date.now();
+        while (page <= MAX_PAGINATION_PAGES) {
+            // Check total timeout
+            if (Date.now() - startTime > PAGINATION_TIMEOUT_MS) {
+                orchestrator_logger_1.default.logWarning(`[RunnerAvailability] Pagination timeout reached after ${page - 1} pages and ${Date.now() - startTime}ms. ` +
+                    `Using ${allRunners.length} runners found so far.`);
+                break;
+            }
+            let response;
+            try {
+                response = await octokit.request('GET /repos/{owner}/{repo}/actions/runners', {
+                    owner,
+                    repo,
+                    per_page: perPage,
+                    page,
+                });
+            }
+            catch (requestError) {
+                // Octokit throws for non-2xx responses. Check if this is a rate limit error.
+                const status = requestError.status ?? requestError.response?.status;
+                if (status === 403 || status === 429) {
+                    const resetTime = requestError.response?.headers?.['x-ratelimit-reset'] ?? requestError.headers?.['x-ratelimit-reset'];
+                    const resetMessage = resetTime
+                        ? ` Resets at ${new Date(Number.parseInt(String(resetTime), 10) * 1000).toISOString()}`
+                        : '';
+                    orchestrator_logger_1.default.logWarning(`[RunnerAvailability] GitHub API rate limit reached (HTTP ${status}).${resetMessage} ` +
+                        `Using ${allRunners.length} runners found so far.`);
+                    break;
+                }
+                // Re-throw non-rate-limit errors to be handled by the outer catch
+                throw requestError;
+            }
+            const runners = (response.data.runners || []);
+            allRunners.push(...runners);
+            if (runners.length < perPage)
+                break;
+            page++;
+        }
+        if (page > MAX_PAGINATION_PAGES) {
+            orchestrator_logger_1.default.logWarning(`[RunnerAvailability] Maximum pagination limit reached (${MAX_PAGINATION_PAGES} pages). ` +
+                `Using ${allRunners.length} runners found so far.`);
+        }
+        if (allRunners.length === 0) {
+            orchestrator_logger_1.default.log('[RunnerAvailability] No runners found. Possible causes: ' +
+                'wrong token permissions (needs repo or actions scope), ' +
+                'no self-hosted runners registered, ' +
+                'or runners are registered at the organization level instead of the repository.');
+        }
+        return allRunners;
+    }
+    /**
+     * Filter runners by required labels. A runner matches if it has ALL required labels.
+     * If requiredLabels is empty, all runners match.
+     */
+    static filterByLabels(runners, requiredLabels) {
+        if (requiredLabels.length === 0)
+            return runners;
+        return runners.filter((runner) => {
+            const runnerLabelNames = runner.labels.map((l) => l.name.toLowerCase());
+            return requiredLabels.every((required) => runnerLabelNames.includes(required.toLowerCase()));
+        });
+    }
+}
+exports.RunnerAvailabilityService = RunnerAvailabilityService;
+
+
 /***/ }),
 
 /***/ 54222:
@@ -9690,535 +9886,6 @@ class ContainerHookService {
 exports.ContainerHookService = ContainerHookService;
 
 
-/***/ }),
-
-/***/ 37347:
-/***/ (function(__unused_webpack_module, exports, __nccwpck_require__) {
-
-"use strict";
-
-var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
-    if (k2 === undefined) k2 = k;
-    var desc = Object.getOwnPropertyDescriptor(m, k);
-    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
-      desc = { enumerable: true, get: function() { return m[k]; } };
-    }
-    Object.defineProperty(o, k2, desc);
-}) : (function(o, m, k, k2) {
-    if (k2 === undefined) k2 = k;
-    o[k2] = m[k];
-}));
-var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
-    Object.defineProperty(o, "default", { enumerable: true, value: v });
-}) : function(o, v) {
-    o["default"] = v;
-});
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
-    __setModuleDefault(result, mod);
-    return result;
-};
-var __importDefault = (this && this.__importDefault) || function (mod) {
-    return (mod && mod.__esModule) ? mod : { "default": mod };
-};
-Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.BuildReliabilityService = void 0;
-const node_child_process_1 = __nccwpck_require__(17718);
-const node_fs_1 = __importDefault(__nccwpck_require__(87561));
-const node_path_1 = __importDefault(__nccwpck_require__(49411));
-const core = __importStar(__nccwpck_require__(42186));
-/**
- * Build reliability features for hardening CI pipelines.
- * Provides git integrity checks, stale lock cleanup, submodule validation,
- * reserved filename removal, build archival, and git environment configuration.
- * All features are opt-in and fail gracefully (warnings only).
- */
-class BuildReliabilityService {
-    /**
-     * Run git fsck to check repository integrity.
-     * Returns true if the repo is healthy, false if corruption detected.
-     */
-    static checkGitIntegrity(repoPath = '.') {
-        core.info(`[Reliability] Checking git integrity in ${repoPath}`);
-        try {
-            const output = (0, node_child_process_1.execSync)(`git -C "${repoPath}" fsck --no-dangling`, {
-                encoding: 'utf8',
-                timeout: 120000,
-                stdio: ['pipe', 'pipe', 'pipe'],
-            });
-            // Parse output for corruption indicators
-            const corruptionPatterns = [
-                /broken link/i,
-                /missing (blob|tree|commit|tag)/i,
-                /dangling/i,
-                /corrupt/i,
-                /error in /i,
-            ];
-            for (const pattern of corruptionPatterns) {
-                if (pattern.test(output)) {
-                    core.warning(`[Reliability] Git integrity check found issues: ${output.trim()}`);
-                    return false;
-                }
-            }
-            core.info('[Reliability] Git integrity check passed');
-            return true;
-        }
-        catch (error) {
-            // execSync throws on non-zero exit code
-            const stderr = error.stderr?.toString() ?? error.message;
-            core.warning(`[Reliability] Git integrity check failed: ${stderr}`);
-            return false;
-        }
-    }
-    /**
-     * Remove stale .lock files from the .git directory.
-     * Only removes lock files older than 10 minutes to avoid interfering with active operations.
-     * Returns the number of lock files removed.
-     */
-    static cleanStaleLockFiles(repoPath = '.') {
-        const gitDir = node_path_1.default.join(repoPath, '.git');
-        if (!node_fs_1.default.existsSync(gitDir) || !node_fs_1.default.statSync(gitDir).isDirectory()) {
-            return 0;
-        }
-        core.info(`[Reliability] Scanning for stale lock files in ${gitDir}`);
-        const now = Date.now();
-        let removed = 0;
-        const cleanDirectory = (directory) => {
-            if (!node_fs_1.default.existsSync(directory))
-                return;
-            try {
-                const entries = node_fs_1.default.readdirSync(directory, { withFileTypes: true });
-                for (const entry of entries) {
-                    const fullPath = node_path_1.default.join(directory, entry.name);
-                    if (entry.isDirectory()) {
-                        cleanDirectory(fullPath);
-                    }
-                    else if (entry.name.endsWith('.lock')) {
-                        // Check if it is a known lock file location OR under refs/
-                        const relativePath = node_path_1.default.relative(gitDir, fullPath);
-                        const isKnownLock = BuildReliabilityService.LOCK_FILE_NAMES.has(entry.name);
-                        const isRefsLock = relativePath.startsWith('refs' + node_path_1.default.sep);
-                        if (isKnownLock || isRefsLock) {
-                            try {
-                                const stat = node_fs_1.default.statSync(fullPath);
-                                const ageMs = now - stat.mtimeMs;
-                                if (ageMs > BuildReliabilityService.LOCK_FILE_MAX_AGE_MS) {
-                                    node_fs_1.default.unlinkSync(fullPath);
-                                    removed++;
-                                    core.info(`[Reliability] Removed stale lock file (age: ${Math.round(ageMs / 1000)}s): ${relativePath}`);
-                                }
-                                else {
-                                    core.info(`[Reliability] Lock file is recent (age: ${Math.round(ageMs / 1000)}s), skipping: ${relativePath}`);
-                                }
-                            }
-                            catch {
-                                core.warning(`[Reliability] Could not remove lock file: ${fullPath}`);
-                            }
-                        }
-                    }
-                }
-            }
-            catch {
-                // Directory not accessible
-            }
-        };
-        cleanDirectory(gitDir);
-        if (removed > 0) {
-            core.info(`[Reliability] Cleaned ${removed} stale lock file(s)`);
-        }
-        else {
-            core.info('[Reliability] No stale lock files found');
-        }
-        return removed;
-    }
-    /**
-     * Validate that submodule .git files point to existing backing stores
-     * under .git/modules/. Returns list of submodule paths with broken backing stores.
-     */
-    static validateSubmoduleBackingStores(repoPath = '.') {
-        const broken = [];
-        const gitmodulesPath = node_path_1.default.join(repoPath, '.gitmodules');
-        if (!node_fs_1.default.existsSync(gitmodulesPath)) {
-            core.info('[Reliability] No .gitmodules found, skipping submodule validation');
-            return broken;
-        }
-        core.info(`[Reliability] Validating submodule backing stores in ${repoPath}`);
-        try {
-            const content = node_fs_1.default.readFileSync(gitmodulesPath, 'utf8');
-            const pathMatches = content.matchAll(/path\s*=\s*(.+)/g);
-            for (const match of pathMatches) {
-                const submodulePath = match[1].trim();
-                const gitFile = node_path_1.default.join(repoPath, submodulePath, '.git');
-                if (!node_fs_1.default.existsSync(gitFile)) {
-                    // Submodule not initialized -- not necessarily broken
-                    continue;
-                }
-                try {
-                    const stat = node_fs_1.default.statSync(gitFile);
-                    if (stat.isFile()) {
-                        // .git is a file -- should contain "gitdir: <path>"
-                        const gitFileContent = node_fs_1.default.readFileSync(gitFile, 'utf8').trim();
-                        const gitdirMatch = gitFileContent.match(/^gitdir:\s*(.+)$/);
-                        if (gitdirMatch) {
-                            const backingStore = node_path_1.default.resolve(node_path_1.default.join(repoPath, submodulePath), gitdirMatch[1]);
-                            if (!node_fs_1.default.existsSync(backingStore)) {
-                                broken.push(submodulePath);
-                                core.warning(`[Reliability] Submodule ${submodulePath} has broken backing store: ${backingStore}`);
-                            }
-                            else {
-                                core.info(`[Reliability] Submodule ${submodulePath} backing store OK`);
-                            }
-                        }
-                        else {
-                            broken.push(submodulePath);
-                            core.warning(`[Reliability] Submodule ${submodulePath} .git file has invalid format`);
-                        }
-                    }
-                }
-                catch {
-                    // Can't read .git file
-                    core.warning(`[Reliability] Could not read .git file for submodule: ${submodulePath}`);
-                }
-            }
-        }
-        catch (error) {
-            core.warning(`[Reliability] Could not read .gitmodules: ${error.message}`);
-        }
-        if (broken.length > 0) {
-            core.warning(`[Reliability] ${broken.length} submodule(s) have broken backing stores`);
-        }
-        else {
-            core.info('[Reliability] All submodule backing stores are valid');
-        }
-        return broken;
-    }
-    /**
-     * Orchestrate recovery of a corrupted repository.
-     * Sequence: fsck -> clean locks -> re-fetch -> retry fsck.
-     * Returns true if recovery succeeded.
-     */
-    static recoverCorruptedRepo(repoPath = '.') {
-        core.warning(`[Reliability] Attempting automatic recovery for ${repoPath}`);
-        // Step 1: Clean stale lock files that may be preventing operations
-        const locksRemoved = BuildReliabilityService.cleanStaleLockFiles(repoPath);
-        if (locksRemoved > 0) {
-            core.info(`[Reliability] Recovery: cleaned ${locksRemoved} lock file(s)`);
-        }
-        // Step 2: Re-fetch to restore missing objects
-        try {
-            core.info('[Reliability] Recovery: re-fetching from remote');
-            (0, node_child_process_1.execSync)(`git -C "${repoPath}" fetch --all`, {
-                encoding: 'utf8',
-                timeout: 300000,
-                stdio: ['pipe', 'pipe', 'pipe'],
-            });
-            core.info('[Reliability] Recovery: fetch completed');
-        }
-        catch (error) {
-            core.warning(`[Reliability] Recovery: fetch failed: ${error.stderr?.toString() ?? error.message}`);
-        }
-        // Step 3: Retry fsck
-        const healthy = BuildReliabilityService.checkGitIntegrity(repoPath);
-        if (healthy) {
-            core.info('[Reliability] Recovery succeeded -- repository is healthy');
-        }
-        else {
-            core.warning('[Reliability] Recovery failed -- repository still has integrity issues');
-        }
-        return healthy;
-    }
-    /**
-     * Scan a directory tree for files/directories with Windows reserved names.
-     * These names (con, prn, aux, nul, com1-9, lpt1-9) with any extension
-     * cause Unity asset importer infinite loops on Windows.
-     * Returns list of paths that were removed.
-     */
-    static cleanReservedFilenames(projectPath) {
-        const assetsPath = node_path_1.default.join(projectPath, 'Assets');
-        if (!node_fs_1.default.existsSync(assetsPath)) {
-            core.info(`[Reliability] No Assets directory found at ${assetsPath}, skipping reserved filename scan`);
-            return [];
-        }
-        core.info(`[Reliability] Scanning for reserved filenames in ${assetsPath}`);
-        const cleaned = [];
-        const scanDirectory = (directory) => {
-            try {
-                const entries = node_fs_1.default.readdirSync(directory, { withFileTypes: true });
-                for (const entry of entries) {
-                    const nameWithoutExtension = entry.name.split('.')[0].toLowerCase();
-                    const fullPath = node_path_1.default.join(directory, entry.name);
-                    if (BuildReliabilityService.RESERVED_NAMES.has(nameWithoutExtension)) {
-                        try {
-                            if (entry.isDirectory()) {
-                                node_fs_1.default.rmSync(fullPath, { recursive: true, force: true });
-                            }
-                            else {
-                                node_fs_1.default.unlinkSync(fullPath);
-                            }
-                            cleaned.push(fullPath);
-                            core.warning(`[Reliability] Removed reserved filename: ${fullPath}`);
-                        }
-                        catch {
-                            core.warning(`[Reliability] Could not remove reserved filename: ${fullPath}`);
-                        }
-                    }
-                    else if (entry.isDirectory()) {
-                        scanDirectory(fullPath);
-                    }
-                }
-            }
-            catch {
-                // Directory not accessible
-            }
-        };
-        scanDirectory(assetsPath);
-        if (cleaned.length > 0) {
-            core.warning(`[Reliability] Cleaned ${cleaned.length} reserved filename(s)`);
-        }
-        else {
-            core.info('[Reliability] No reserved filenames found');
-        }
-        return cleaned;
-    }
-    /**
-     * Get available disk space in megabytes for a given directory.
-     * Returns -1 if the check fails (unknown space).
-     *
-     * Cross-platform: uses wmic on Windows, df on Unix.
-     */
-    static getAvailableSpaceMB(directoryPath) {
-        try {
-            if (process.platform === 'win32') {
-                const drive = node_path_1.default.parse(directoryPath).root;
-                const driveLetter = drive.replace(/[:\\\/]/g, '');
-                const output = (0, node_child_process_1.execFileSync)('wmic', ['logicaldisk', 'where', `DeviceID='${driveLetter}:'`, 'get', 'FreeSpace', '/value'], { encoding: 'utf8', timeout: 10000 });
-                const match = output.match(/FreeSpace=(\d+)/);
-                return match ? Number.parseInt(match[1], 10) / (1024 * 1024) : -1;
-            }
-            else {
-                const output = (0, node_child_process_1.execFileSync)('df', ['-BM', '--output=avail', directoryPath], {
-                    encoding: 'utf8',
-                    timeout: 10000,
-                });
-                const lines = output.trim().split('\n');
-                return Number.parseInt(lines[lines.length - 1], 10);
-            }
-        }
-        catch {
-            return -1; // Unknown, caller should proceed with warning
-        }
-    }
-    /**
-     * Calculate the total size of a directory in megabytes.
-     * Returns -1 if the calculation fails.
-     */
-    static getDirectorySizeMB(directoryPath) {
-        try {
-            const stat = node_fs_1.default.statSync(directoryPath);
-            if (!stat.isDirectory()) {
-                return stat.size / (1024 * 1024);
-            }
-            let totalBytes = 0;
-            const walkDirectory = (dir) => {
-                const entries = node_fs_1.default.readdirSync(dir, { withFileTypes: true });
-                for (const entry of entries) {
-                    const fullPath = node_path_1.default.join(dir, entry.name);
-                    if (entry.isDirectory()) {
-                        walkDirectory(fullPath);
-                    }
-                    else {
-                        try {
-                            totalBytes += node_fs_1.default.statSync(fullPath).size;
-                        }
-                        catch {
-                            // Skip inaccessible files
-                        }
-                    }
-                }
-            };
-            walkDirectory(directoryPath);
-            return totalBytes / (1024 * 1024);
-        }
-        catch {
-            return -1;
-        }
-    }
-    /**
-     * Create a tar.gz archive of build output.
-     *
-     * Validates disk space before archiving. Skips archival with a warning
-     * if insufficient space is detected, preventing partial writes on full disks.
-     */
-    static archiveBuildOutput(sourcePath, archivePath) {
-        if (!node_fs_1.default.existsSync(sourcePath)) {
-            core.info(`[Reliability] No build output to archive at ${sourcePath}`);
-            return;
-        }
-        node_fs_1.default.mkdirSync(archivePath, { recursive: true });
-        // Check available disk space before archiving
-        const sourceSizeMB = BuildReliabilityService.getDirectorySizeMB(sourcePath);
-        const availableSpaceMB = BuildReliabilityService.getAvailableSpaceMB(archivePath);
-        if (sourceSizeMB >= 0 && availableSpaceMB >= 0) {
-            const neededMB = Math.ceil(sourceSizeMB * 1.1); // 10% safety margin
-            if (availableSpaceMB < neededMB) {
-                core.warning(`[Reliability] Insufficient disk space for archive. ` +
-                    `Need ~${neededMB}MB, available: ${Math.floor(availableSpaceMB)}MB. Skipping archive.`);
-                return;
-            }
-            core.info(`[Reliability] Disk space check passed: need ~${neededMB}MB, available: ${Math.floor(availableSpaceMB)}MB`);
-        }
-        else if (availableSpaceMB < 0) {
-            core.warning('[Reliability] Could not determine available disk space. Proceeding with archive cautiously.');
-        }
-        const timestamp = new Date().toISOString().replace(/[.:]/g, '-');
-        const archiveFile = node_path_1.default.join(archivePath, `build-${timestamp}.tar.gz`);
-        try {
-            (0, node_child_process_1.execSync)(`tar -czf "${archiveFile}" -C "${node_path_1.default.dirname(sourcePath)}" "${node_path_1.default.basename(sourcePath)}"`, {
-                encoding: 'utf8',
-                timeout: 600000,
-                stdio: ['pipe', 'pipe', 'pipe'],
-            });
-            core.info(`[Reliability] Build output archived to ${archiveFile}`);
-        }
-        catch (error) {
-            core.warning(`[Reliability] Failed to archive build output: ${error.stderr?.toString() ?? error.message}`);
-            // Clean up partial archive if it exists to avoid leaving corrupted files
-            try {
-                if (node_fs_1.default.existsSync(archiveFile)) {
-                    node_fs_1.default.unlinkSync(archiveFile);
-                    core.info(`[Reliability] Cleaned up partial archive: ${archiveFile}`);
-                }
-            }
-            catch {
-                // Best-effort cleanup
-            }
-        }
-    }
-    /**
-     * Enforce retention policy -- delete archives older than the retention period.
-     * Returns the number of old archives removed.
-     */
-    static enforceRetention(archivePath, retentionDays) {
-        if (!node_fs_1.default.existsSync(archivePath)) {
-            return 0;
-        }
-        const now = Date.now();
-        const retentionMs = retentionDays * 24 * 60 * 60 * 1000;
-        let removed = 0;
-        try {
-            const entries = node_fs_1.default.readdirSync(archivePath, { withFileTypes: true });
-            for (const entry of entries) {
-                const fullPath = node_path_1.default.join(archivePath, entry.name);
-                try {
-                    const stat = node_fs_1.default.statSync(fullPath);
-                    const ageMs = now - stat.mtimeMs;
-                    if (ageMs > retentionMs) {
-                        if (entry.isDirectory()) {
-                            node_fs_1.default.rmSync(fullPath, { recursive: true, force: true });
-                        }
-                        else {
-                            node_fs_1.default.unlinkSync(fullPath);
-                        }
-                        removed++;
-                        core.info(`[Reliability] Removed old archive: ${entry.name} (age: ${Math.round(ageMs / (24 * 60 * 60 * 1000))} days)`);
-                    }
-                }
-                catch {
-                    core.warning(`[Reliability] Could not process archive entry: ${fullPath}`);
-                }
-            }
-        }
-        catch {
-            core.warning(`[Reliability] Could not read archive directory: ${archivePath}`);
-            return 0;
-        }
-        if (removed > 0) {
-            core.info(`[Reliability] Retention enforced: removed ${removed} old archive(s), retention: ${retentionDays} days`);
-        }
-        return removed;
-    }
-    /**
-     * Configure git environment variables for CI reliability.
-     * Sets GIT_TERMINAL_PROMPT=0, increases http.postBuffer, enables core.longpaths.
-     */
-    static configureGitEnvironment() {
-        core.info('[Reliability] Configuring git environment for CI');
-        // Prevent git from prompting for credentials (hangs in CI)
-        process.env.GIT_TERMINAL_PROMPT = '0';
-        core.info('[Reliability] Set GIT_TERMINAL_PROMPT=0');
-        try {
-            // Increase http.postBuffer to 500MB for large pushes
-            (0, node_child_process_1.execSync)('git config --global http.postBuffer 524288000', {
-                encoding: 'utf8',
-                timeout: 10000,
-                stdio: ['pipe', 'pipe', 'pipe'],
-            });
-            core.info('[Reliability] Set http.postBuffer=524288000 (500MB)');
-        }
-        catch (error) {
-            core.warning(`[Reliability] Could not set http.postBuffer: ${error.message}`);
-        }
-        try {
-            // Enable long paths on Windows
-            (0, node_child_process_1.execSync)('git config --global core.longpaths true', {
-                encoding: 'utf8',
-                timeout: 10000,
-                stdio: ['pipe', 'pipe', 'pipe'],
-            });
-            core.info('[Reliability] Set core.longpaths=true');
-        }
-        catch (error) {
-            core.warning(`[Reliability] Could not set core.longpaths: ${error.message}`);
-        }
-    }
-}
-exports.BuildReliabilityService = BuildReliabilityService;
-// Windows reserved device names that cause Unity asset importer infinite loops
-BuildReliabilityService.RESERVED_NAMES = new Set([
-    'con',
-    'prn',
-    'aux',
-    'nul',
-    'com1',
-    'com2',
-    'com3',
-    'com4',
-    'com5',
-    'com6',
-    'com7',
-    'com8',
-    'com9',
-    'lpt1',
-    'lpt2',
-    'lpt3',
-    'lpt4',
-    'lpt5',
-    'lpt6',
-    'lpt7',
-    'lpt8',
-    'lpt9',
-]);
-// Lock files to look for in the .git directory
-BuildReliabilityService.LOCK_FILE_NAMES = new Set(['index.lock', 'shallow.lock', 'config.lock', 'HEAD.lock']);
-// Maximum age in milliseconds before a lock file is considered stale (10 minutes)
-BuildReliabilityService.LOCK_FILE_MAX_AGE_MS = 10 * 60 * 1000;
-
-
-/***/ }),
-
-/***/ 9842:
-/***/ ((__unused_webpack_module, exports, __nccwpck_require__) => {
-
-"use strict";
-
-Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.BuildReliabilityService = void 0;
-var build_reliability_service_1 = __nccwpck_require__(37347);
-Object.defineProperty(exports, "BuildReliabilityService", ({ enumerable: true, get: function () { return build_reliability_service_1.BuildReliabilityService; } }));
-
-
 /***/ }),
 
 /***/ 23451:

src/index.ts

@@ -3,7 +3,6 @@ import { Action, BuildParameters, Cache, Orchestrator, Docker, ImageTag, Output
 import { Cli } from './model/cli/cli';
 import MacBuilder from './model/mac-builder';
 import PlatformSetup from './model/platform-setup';
-import { BuildReliabilityService } from './model/orchestrator/services/reliability';
 
 async function runMain() {
   try {
@@ -15,38 +14,11 @@ async function runMain() {
     Action.checkCompatibility();
     Cache.verify();
 
-    // Always configure git environment for CI reliability
-    BuildReliabilityService.configureGitEnvironment();
-
     const { workspace, actionFolder } = Action;
 
     const buildParameters = await BuildParameters.create();
     const baseImage = new ImageTag(buildParameters);
 
-    // Pre-build reliability checks
-    if (buildParameters.gitIntegrityCheck) {
-      core.info('Running git integrity checks...');
-
-      const isHealthy = BuildReliabilityService.checkGitIntegrity(workspace);
-      BuildReliabilityService.cleanStaleLockFiles(workspace);
-      BuildReliabilityService.validateSubmoduleBackingStores(workspace);
-
-      if (buildParameters.cleanReservedFilenames) {
-        BuildReliabilityService.cleanReservedFilenames(buildParameters.projectPath);
-      }
-
-      if (!isHealthy && buildParameters.gitAutoRecover) {
-        core.info('Git corruption detected, attempting automatic recovery...');
-        const recovered = BuildReliabilityService.recoverCorruptedRepo(workspace);
-        if (!recovered) {
-          core.warning('Automatic recovery failed. Build may encounter issues.');
-        }
-      }
-    } else if (buildParameters.cleanReservedFilenames) {
-      // cleanReservedFilenames can run independently of gitIntegrityCheck
-      BuildReliabilityService.cleanReservedFilenames(buildParameters.projectPath);
-    }
-
     let exitCode = -1;
 
     if (buildParameters.providerStrategy === 'local') {
@@ -65,13 +37,6 @@ async function runMain() {
       exitCode = 0;
     }
 
-    // Post-build: archive and enforce retention
-    if (buildParameters.buildArchiveEnabled && exitCode === 0) {
-      core.info('Archiving build output...');
-      BuildReliabilityService.archiveBuildOutput(buildParameters.buildPath, buildParameters.buildArchivePath);
-      BuildReliabilityService.enforceRetention(buildParameters.buildArchivePath, buildParameters.buildArchiveRetention);
-    }
-
     // Set output
     await Output.setBuildVersion(buildParameters.buildVersion);
     await Output.setAndroidVersionCode(buildParameters.androidVersionCode);

src/model/build-parameters.ts

@@ -54,6 +54,12 @@ class BuildParameters {
   public sshAgent!: string;
   public sshPublicKeysDirectoryPath!: string;
   public providerStrategy!: string;
+  public fallbackProviderStrategy!: string;
+  public runnerCheckEnabled!: boolean;
+  public runnerCheckLabels!: string[];
+  public runnerCheckMinAvailable!: number;
+  public retryOnFallback!: boolean;
+  public providerInitTimeout!: number;
   public gitPrivateToken!: string;
   public awsStackName!: string;
   public awsEndpoint?: string;
@@ -106,12 +112,6 @@ class BuildParameters {
   public cacheUnityInstallationOnMac!: boolean;
   public unityHubVersionOnMac!: string;
   public dockerWorkspacePath!: string;
-  public gitIntegrityCheck!: boolean;
-  public gitAutoRecover!: boolean;
-  public cleanReservedFilenames!: boolean;
-  public buildArchiveEnabled!: boolean;
-  public buildArchivePath!: string;
-  public buildArchiveRetention!: number;
 
   public static shouldUseRetainedWorkspaceMode(buildParameters: BuildParameters) {
     return buildParameters.maxRetainedWorkspaces > 0 && Orchestrator.lockedWorkspace !== ``;
@@ -200,6 +200,12 @@ class BuildParameters {
       containerRegistryRepository: Input.containerRegistryRepository,
       containerRegistryImageVersion: Input.containerRegistryImageVersion,
       providerStrategy: OrchestratorOptions.providerStrategy,
+      fallbackProviderStrategy: OrchestratorOptions.fallbackProviderStrategy,
+      runnerCheckEnabled: OrchestratorOptions.runnerCheckEnabled,
+      runnerCheckLabels: OrchestratorOptions.runnerCheckLabels,
+      runnerCheckMinAvailable: OrchestratorOptions.runnerCheckMinAvailable,
+      retryOnFallback: OrchestratorOptions.retryOnFallback,
+      providerInitTimeout: OrchestratorOptions.providerInitTimeout,
       buildPlatform: OrchestratorOptions.buildPlatform,
       kubeConfig: OrchestratorOptions.kubeConfig,
       containerMemory: OrchestratorOptions.containerMemory,
@@ -248,12 +254,6 @@ class BuildParameters {
       cacheUnityInstallationOnMac: Input.cacheUnityInstallationOnMac,
       unityHubVersionOnMac: Input.unityHubVersionOnMac,
       dockerWorkspacePath: Input.dockerWorkspacePath,
-      gitIntegrityCheck: Input.gitIntegrityCheck,
-      gitAutoRecover: Input.gitAutoRecover,
-      cleanReservedFilenames: Input.cleanReservedFilenames,
-      buildArchiveEnabled: Input.buildArchiveEnabled,
-      buildArchivePath: Input.buildArchivePath,
-      buildArchiveRetention: Input.buildArchiveRetention,
     };
   }
 

src/model/input.ts

@@ -282,38 +282,6 @@ class Input {
     return Input.getInput('skipActivation')?.toLowerCase() ?? 'false';
   }
 
-  static get gitIntegrityCheck(): boolean {
-    const input = Input.getInput('gitIntegrityCheck') ?? 'false';
-
-    return input === 'true';
-  }
-
-  static get gitAutoRecover(): boolean {
-    const input = Input.getInput('gitAutoRecover') ?? 'false';
-
-    return input === 'true';
-  }
-
-  static get cleanReservedFilenames(): boolean {
-    const input = Input.getInput('cleanReservedFilenames') ?? 'false';
-
-    return input === 'true';
-  }
-
-  static get buildArchiveEnabled(): boolean {
-    const input = Input.getInput('buildArchiveEnabled') ?? 'false';
-
-    return input === 'true';
-  }
-
-  static get buildArchivePath(): string {
-    return Input.getInput('buildArchivePath') ?? './build-archives';
-  }
-
-  static get buildArchiveRetention(): number {
-    return Number.parseInt(Input.getInput('buildArchiveRetention') ?? '30', 10);
-  }
-
   public static ToEnvVarFormat(input: string) {
     if (input.toUpperCase() === input) {
       return input;

src/model/orchestrator/options/orchestrator-options.ts

@@ -138,6 +138,32 @@ class OrchestratorOptions {
     return provider || 'local';
   }
 
+  static get fallbackProviderStrategy(): string {
+    return OrchestratorOptions.getInput('fallbackProviderStrategy') || '';
+  }
+
+  static get runnerCheckEnabled(): boolean {
+    return OrchestratorOptions.getInput('runnerCheckEnabled') === 'true';
+  }
+
+  static get runnerCheckLabels(): string[] {
+    const labels = OrchestratorOptions.getInput('runnerCheckLabels');
+
+    return labels ? labels.split(',').map((l) => l.trim()) : [];
+  }
+
+  static get runnerCheckMinAvailable(): number {
+    return Number(OrchestratorOptions.getInput('runnerCheckMinAvailable')) || 1;
+  }
+
+  static get retryOnFallback(): boolean {
+    return OrchestratorOptions.getInput('retryOnFallback') === 'true';
+  }
+
+  static get providerInitTimeout(): number {
+    return Number(OrchestratorOptions.getInput('providerInitTimeout')) || 0;
+  }
+
   static get containerCpu(): string {
     return OrchestratorOptions.getInput('containerCpu') || `1024`;
   }

src/model/orchestrator/orchestrator.ts

@@ -20,6 +20,7 @@ import { FollowLogStreamService } from './services/core/follow-log-stream-servic
 import OrchestratorResult from './services/core/orchestrator-result';
 import OrchestratorOptions from './options/orchestrator-options';
 import ResourceTracking from './services/core/resource-tracking';
+import { RunnerAvailabilityService } from './services/core/runner-availability-service';
 
 class Orchestrator {
   public static Provider: ProviderInterface;
@@ -76,6 +77,42 @@ class Orchestrator {
   private static async setupSelectedBuildPlatform() {
     OrchestratorLogger.log(`Orchestrator platform selected ${Orchestrator.buildParameters.providerStrategy}`);
 
+    // Check runner availability and apply fallback if needed
+    if (Orchestrator.buildParameters.runnerCheckEnabled && Orchestrator.buildParameters.fallbackProviderStrategy) {
+      const owner = OrchestratorOptions.githubOwner;
+      const repo = OrchestratorOptions.githubRepoName;
+      const token = Orchestrator.buildParameters.gitPrivateToken || process.env.GITHUB_TOKEN || '';
+
+      OrchestratorLogger.log(
+        `Checking runner availability (labels: [${Orchestrator.buildParameters.runnerCheckLabels.join(', ')}], min: ${
+          Orchestrator.buildParameters.runnerCheckMinAvailable
+        })`,
+      );
+
+      const result = await RunnerAvailabilityService.checkAvailability(
+        owner,
+        repo,
+        token,
+        Orchestrator.buildParameters.runnerCheckLabels,
+        Orchestrator.buildParameters.runnerCheckMinAvailable,
+      );
+
+      OrchestratorLogger.log(
+        `Runner check: ${result.totalRunners} total, ${result.matchingRunners} matching, ${result.idleRunners} idle — ${result.reason}`,
+      );
+
+      if (result.shouldFallback) {
+        const original = Orchestrator.buildParameters.providerStrategy;
+        const fallback = Orchestrator.buildParameters.fallbackProviderStrategy;
+        OrchestratorLogger.log(`Falling back from '${original}' to '${fallback}' — ${result.reason}`);
+        Orchestrator.buildParameters.providerStrategy = fallback;
+        core.setOutput('providerFallbackUsed', 'true');
+        core.setOutput('providerFallbackReason', result.reason);
+      } else {
+        core.setOutput('providerFallbackUsed', 'false');
+      }
+    }
+
     // Detect LocalStack endpoints and handle AWS provider appropriately
     // AWS_FORCE_PROVIDER options:
     //   - 'aws': Force AWS provider (requires LocalStack Pro with ECS support)
@@ -182,6 +219,30 @@ class Orchestrator {
     if (baseImage.includes(`undefined`)) {
       throw new Error(`baseImage is undefined`);
     }
+
+    try {
+      return await Orchestrator.runWithProvider(buildParameters, baseImage);
+    } catch (primaryError: any) {
+      // Retry on fallback provider if enabled and a fallback is configured
+      const fallback = buildParameters.fallbackProviderStrategy;
+      const alreadyOnFallback = buildParameters.providerStrategy === fallback;
+      if (buildParameters.retryOnFallback && fallback && !alreadyOnFallback) {
+        OrchestratorLogger.log(
+          `Primary provider '${buildParameters.providerStrategy}' failed: ${primaryError.message}`,
+        );
+        OrchestratorLogger.log(`Retrying build on fallback provider '${fallback}'...`);
+        buildParameters.providerStrategy = fallback;
+        core.setOutput('providerFallbackUsed', 'true');
+        core.setOutput('providerFallbackReason', `Primary provider failed: ${primaryError.message}`);
+
+        return await Orchestrator.runWithProvider(buildParameters, baseImage);
+      }
+
+      throw primaryError;
+    }
+  }
+
+  private static async runWithProvider(buildParameters: BuildParameters, baseImage: string) {
     await Orchestrator.setup(buildParameters);
 
     // When aws-local mode is enabled, validate AWS CloudFormation templates
@@ -189,12 +250,10 @@ class Orchestrator {
     if (Orchestrator.validateAwsTemplates) {
       await Orchestrator.validateAwsCloudFormationTemplates();
     }
-    await Orchestrator.Provider.setupWorkflow(
-      Orchestrator.buildParameters.buildGuid,
-      Orchestrator.buildParameters,
-      Orchestrator.buildParameters.branch,
-      Orchestrator.defaultSecrets,
-    );
+
+    // Setup workflow with optional init timeout
+    await Orchestrator.setupWorkflowWithTimeout();
+
     try {
       if (buildParameters.maxRetainedWorkspaces > 0) {
         Orchestrator.lockedWorkspace = SharedWorkspaceLocking.NewWorkspaceName();
@@ -275,6 +334,39 @@ class Orchestrator {
     }
   }
 
+  /**
+   * Runs setupWorkflow with an optional timeout. If providerInitTimeout is set and the
+   * provider takes longer than that to initialize, throws an error that triggers
+   * retry-on-fallback (if enabled).
+   */
+  private static async setupWorkflowWithTimeout() {
+    const timeoutSeconds = Orchestrator.buildParameters.providerInitTimeout;
+
+    const setupPromise = Orchestrator.Provider.setupWorkflow(
+      Orchestrator.buildParameters.buildGuid,
+      Orchestrator.buildParameters,
+      Orchestrator.buildParameters.branch,
+      Orchestrator.defaultSecrets,
+    );
+
+    if (timeoutSeconds <= 0) {
+      await setupPromise;
+
+      return;
+    }
+
+    OrchestratorLogger.log(`Provider init timeout: ${timeoutSeconds}s`);
+
+    const timeoutPromise = new Promise<never>((_, reject) => {
+      setTimeout(
+        () => reject(new Error(`Provider initialization timed out after ${timeoutSeconds}s`)),
+        timeoutSeconds * 1000,
+      );
+    });
+
+    await Promise.race([setupPromise, timeoutPromise]);
+  }
+
   private static async updateStatusWithBuildParameters() {
     const content = { ...Orchestrator.buildParameters };
     content.gitPrivateToken = ``;

src/model/orchestrator/services/core/runner-availability-service.test.ts

@@ -0,0 +1,318 @@
+import { RunnerAvailabilityService } from './runner-availability-service';
+
+// Mock @octokit/core
+jest.mock('@octokit/core', () => ({
+  Octokit: jest.fn().mockImplementation(() => ({
+    request: jest.fn(),
+  })),
+}));
+
+jest.mock('./orchestrator-logger', () => ({
+  __esModule: true,
+  default: {
+    log: jest.fn(),
+    logWarning: jest.fn(),
+    error: jest.fn(),
+  },
+}));
+
+import { Octokit } from '@octokit/core';
+
+const MockedOctokit = Octokit as jest.MockedClass<typeof Octokit>;
+
+function createMockRunners(runners: Array<{ name: string; status: string; busy: boolean; labels: string[] }>) {
+  return runners.map((r, i) => ({
+    id: i + 1,
+    name: r.name,
+    status: r.status,
+    busy: r.busy,
+    labels: r.labels.map((l) => ({ name: l })),
+  }));
+}
+
+describe('RunnerAvailabilityService', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  describe('checkAvailability', () => {
+    it('should skip check and not fallback when no token is provided', async () => {
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', '', [], 1);
+      expect(result.shouldFallback).toBe(false);
+      expect(result.reason).toContain('No GitHub token');
+    });
+
+    it('should fallback when no runners are registered', async () => {
+      const mockRequest = jest.fn().mockResolvedValue({ status: 200, data: { runners: [] } });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', 'token', [], 1);
+      expect(result.shouldFallback).toBe(true);
+      expect(result.reason).toContain('No runners registered');
+      expect(result.totalRunners).toBe(0);
+    });
+
+    it('should not fallback when enough idle runners are available', async () => {
+      const runners = createMockRunners([
+        { name: 'runner-1', status: 'online', busy: false, labels: ['self-hosted', 'linux'] },
+        { name: 'runner-2', status: 'online', busy: false, labels: ['self-hosted', 'linux'] },
+      ]);
+      const mockRequest = jest.fn().mockResolvedValue({ status: 200, data: { runners } });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', 'token', [], 1);
+      expect(result.shouldFallback).toBe(false);
+      expect(result.idleRunners).toBe(2);
+      expect(result.totalRunners).toBe(2);
+    });
+
+    it('should fallback when all runners are busy', async () => {
+      const runners = createMockRunners([
+        { name: 'runner-1', status: 'online', busy: true, labels: ['self-hosted'] },
+        { name: 'runner-2', status: 'online', busy: true, labels: ['self-hosted'] },
+      ]);
+      const mockRequest = jest.fn().mockResolvedValue({ status: 200, data: { runners } });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', 'token', [], 1);
+      expect(result.shouldFallback).toBe(true);
+      expect(result.idleRunners).toBe(0);
+      expect(result.matchingRunners).toBe(2);
+    });
+
+    it('should fallback when all runners are offline', async () => {
+      const runners = createMockRunners([
+        { name: 'runner-1', status: 'offline', busy: false, labels: ['self-hosted'] },
+      ]);
+      const mockRequest = jest.fn().mockResolvedValue({ status: 200, data: { runners } });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', 'token', [], 1);
+      expect(result.shouldFallback).toBe(true);
+      expect(result.idleRunners).toBe(0);
+    });
+
+    it('should filter runners by required labels', async () => {
+      const runners = createMockRunners([
+        { name: 'linux-runner', status: 'online', busy: false, labels: ['self-hosted', 'linux'] },
+        { name: 'windows-runner', status: 'online', busy: false, labels: ['self-hosted', 'windows'] },
+      ]);
+      const mockRequest = jest.fn().mockResolvedValue({ status: 200, data: { runners } });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability(
+        'owner',
+        'repo',
+        'token',
+        ['self-hosted', 'linux'],
+        1,
+      );
+
+      expect(result.shouldFallback).toBe(false);
+      expect(result.matchingRunners).toBe(1);
+      expect(result.idleRunners).toBe(1);
+      expect(result.totalRunners).toBe(2);
+    });
+
+    it('should fallback when no runners match required labels', async () => {
+      const runners = createMockRunners([
+        { name: 'windows-runner', status: 'online', busy: false, labels: ['self-hosted', 'windows'] },
+      ]);
+      const mockRequest = jest.fn().mockResolvedValue({ status: 200, data: { runners } });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability(
+        'owner',
+        'repo',
+        'token',
+        ['self-hosted', 'linux'],
+        1,
+      );
+
+      expect(result.shouldFallback).toBe(true);
+      expect(result.matchingRunners).toBe(0);
+      expect(result.idleRunners).toBe(0);
+    });
+
+    it('should respect minAvailable threshold', async () => {
+      const runners = createMockRunners([{ name: 'runner-1', status: 'online', busy: false, labels: ['self-hosted'] }]);
+      const mockRequest = jest.fn().mockResolvedValue({ status: 200, data: { runners } });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      // Need 2, have 1 — should fallback
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', 'token', [], 2);
+      expect(result.shouldFallback).toBe(true);
+      expect(result.idleRunners).toBe(1);
+    });
+
+    it('should be case-insensitive for label matching', async () => {
+      const runners = createMockRunners([
+        { name: 'runner-1', status: 'online', busy: false, labels: ['Self-Hosted', 'Linux'] },
+      ]);
+      const mockRequest = jest.fn().mockResolvedValue({ status: 200, data: { runners } });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability(
+        'owner',
+        'repo',
+        'token',
+        ['self-hosted', 'linux'],
+        1,
+      );
+      expect(result.shouldFallback).toBe(false);
+      expect(result.matchingRunners).toBe(1);
+    });
+
+    it('should not fallback on API error (fail-open)', async () => {
+      const mockRequest = jest.fn().mockRejectedValue(new Error('403 Forbidden'));
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', 'token', [], 1);
+      expect(result.shouldFallback).toBe(false);
+      expect(result.reason).toContain('Runner check failed');
+    });
+
+    it('should count only online+idle runners', async () => {
+      const runners = createMockRunners([
+        { name: 'idle', status: 'online', busy: false, labels: ['self-hosted'] },
+        { name: 'busy', status: 'online', busy: true, labels: ['self-hosted'] },
+        { name: 'offline', status: 'offline', busy: false, labels: ['self-hosted'] },
+      ]);
+      const mockRequest = jest.fn().mockResolvedValue({ status: 200, data: { runners } });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', 'token', [], 1);
+      expect(result.shouldFallback).toBe(false);
+      expect(result.totalRunners).toBe(3);
+      expect(result.matchingRunners).toBe(3);
+      expect(result.idleRunners).toBe(1);
+    });
+  });
+
+  describe('pagination limits', () => {
+    it('should stop paginating after reaching the page limit', async () => {
+      // Return full pages (100 runners each) to force continued pagination
+      let callCount = 0;
+      const mockRequest = jest.fn().mockImplementation(() => {
+        callCount++;
+        const runners = createMockRunners(
+          Array.from({ length: 100 }, (_, i) => ({
+            name: `runner-${callCount}-${i}`,
+            status: 'online' as const,
+            busy: false,
+            labels: ['self-hosted'],
+          })),
+        );
+
+        return Promise.resolve({ status: 200, data: { runners } });
+      });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', 'token', [], 1);
+
+      // Should have called at most 100 pages (the MAX_PAGINATION_PAGES limit)
+      expect(mockRequest).toHaveBeenCalledTimes(100);
+      // Should still have runners from the pages it did fetch
+      expect(result.totalRunners).toBe(10000);
+      expect(result.shouldFallback).toBe(false);
+    });
+
+    it('should stop paginating on rate limit (HTTP 403)', async () => {
+      let callCount = 0;
+      const mockRequest = jest.fn().mockImplementation(() => {
+        callCount++;
+        if (callCount === 2) {
+          // Octokit throws for non-2xx responses
+          const error: any = new Error('API rate limit exceeded');
+          error.status = 403;
+          error.response = {
+            status: 403,
+            headers: { 'x-ratelimit-reset': String(Math.floor(Date.now() / 1000) + 3600) },
+          };
+
+          return Promise.reject(error);
+        }
+        const runners = createMockRunners(
+          Array.from({ length: 100 }, (_, i) => ({
+            name: `runner-${i}`,
+            status: 'online' as const,
+            busy: false,
+            labels: ['self-hosted'],
+          })),
+        );
+
+        return Promise.resolve({ status: 200, data: { runners } });
+      });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', 'token', [], 1);
+
+      // Should have stopped at page 2 (rate limited)
+      expect(mockRequest).toHaveBeenCalledTimes(2);
+      // Should use the 100 runners from the first page
+      expect(result.totalRunners).toBe(100);
+      expect(result.shouldFallback).toBe(false);
+    });
+
+    it('should stop paginating on rate limit (HTTP 429)', async () => {
+      let callCount = 0;
+      const mockRequest = jest.fn().mockImplementation(() => {
+        callCount++;
+        if (callCount === 1) {
+          // Octokit throws for non-2xx responses
+          const error: any = new Error('Too Many Requests');
+          error.status = 429;
+          error.response = { status: 429, headers: {} };
+
+          return Promise.reject(error);
+        }
+
+        return Promise.resolve({ status: 200, data: { runners: [] } });
+      });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', 'token', [], 1);
+
+      // Should have stopped at first page (rate limited immediately)
+      expect(mockRequest).toHaveBeenCalledTimes(1);
+      // No runners found — should fallback
+      expect(result.totalRunners).toBe(0);
+      expect(result.shouldFallback).toBe(true);
+    });
+
+    it('should handle pagination timeout gracefully', async () => {
+      // Mock Date.now to simulate timeout
+      const originalDateNow = Date.now;
+      let callCount = 0;
+
+      const mockRequest = jest.fn().mockImplementation(() => {
+        callCount++;
+        // After first call, advance time past the timeout
+        if (callCount >= 2) {
+          Date.now = jest.fn(() => originalDateNow() + 31_000);
+        }
+        const runners = createMockRunners(
+          Array.from({ length: 100 }, (_, i) => ({
+            name: `runner-${callCount}-${i}`,
+            status: 'online' as const,
+            busy: false,
+            labels: ['self-hosted'],
+          })),
+        );
+
+        return Promise.resolve({ status: 200, data: { runners } });
+      });
+      MockedOctokit.mockImplementation(() => ({ request: mockRequest } as any));
+
+      const result = await RunnerAvailabilityService.checkAvailability('owner', 'repo', 'token', [], 1);
+
+      // Should have stopped after timeout was detected (2 pages: first succeeds, second triggers timeout check)
+      expect(mockRequest.mock.calls.length).toBeLessThanOrEqual(3);
+      // Should have runners from pages fetched before timeout
+      expect(result.totalRunners).toBeGreaterThan(0);
+
+      // Restore
+      Date.now = originalDateNow;
+    });
+  });
+});

src/model/orchestrator/services/core/runner-availability-service.ts

@@ -0,0 +1,205 @@
+import { Octokit } from '@octokit/core';
+import OrchestratorLogger from './orchestrator-logger';
+
+interface GitHubRunner {
+  id: number;
+  name: string;
+  status: 'online' | 'offline';
+  busy: boolean;
+  labels: Array<{ name: string }>;
+}
+
+interface RunnerCheckResult {
+  shouldFallback: boolean;
+  reason: string;
+  totalRunners: number;
+  matchingRunners: number;
+  idleRunners: number;
+}
+
+/**
+ * Maximum number of pages to fetch when paginating through GitHub API results.
+ * 100 pages * 100 per page = 10,000 runners maximum.
+ */
+const MAX_PAGINATION_PAGES = 100;
+
+/**
+ * Total timeout in milliseconds for the pagination loop.
+ * Prevents indefinite API calls if GitHub is slow or pagination is unexpectedly deep.
+ */
+const PAGINATION_TIMEOUT_MS = 30_000;
+
+/**
+ * Checks GitHub Actions runner availability to support automatic provider fallback.
+ *
+ * When a user configures `runnerCheckEnabled: true` with a `fallbackProviderStrategy`,
+ * this service queries the GitHub API for runner status before the build starts.
+ * If insufficient runners are available, the orchestrator routes to the fallback provider.
+ */
+export class RunnerAvailabilityService {
+  /**
+   * Check if enough runners are available to handle the build.
+   *
+   * @param owner - GitHub repository owner
+   * @param repo - GitHub repository name
+   * @param token - GitHub token with repo/actions scope
+   * @param requiredLabels - Labels runners must have (empty = any runner)
+   * @param minAvailable - Minimum idle runners required
+   * @returns RunnerCheckResult with decision and diagnostics
+   */
+  static async checkAvailability(
+    owner: string,
+    repo: string,
+    token: string,
+    requiredLabels: string[],
+    minAvailable: number,
+  ): Promise<RunnerCheckResult> {
+    if (!token) {
+      return {
+        shouldFallback: false,
+        reason: 'No GitHub token available — skipping runner check',
+        totalRunners: 0,
+        matchingRunners: 0,
+        idleRunners: 0,
+      };
+    }
+
+    try {
+      const octokit = new Octokit({ auth: token });
+
+      // Fetch all runners for the repository
+      const runners = await RunnerAvailabilityService.fetchRunners(octokit, owner, repo);
+
+      if (runners.length === 0) {
+        return {
+          shouldFallback: true,
+          reason: 'No runners registered for this repository',
+          totalRunners: 0,
+          matchingRunners: 0,
+          idleRunners: 0,
+        };
+      }
+
+      // Filter by required labels
+      const matching = RunnerAvailabilityService.filterByLabels(runners, requiredLabels);
+
+      // Count idle (online + not busy)
+      const idle = matching.filter((r) => r.status === 'online' && !r.busy);
+
+      const result: RunnerCheckResult = {
+        shouldFallback: idle.length < minAvailable,
+        reason:
+          idle.length >= minAvailable
+            ? `${idle.length} idle runner(s) available (need ${minAvailable})`
+            : `Only ${idle.length} idle runner(s) available, need ${minAvailable}`,
+        totalRunners: runners.length,
+        matchingRunners: matching.length,
+        idleRunners: idle.length,
+      };
+
+      return result;
+    } catch (error: any) {
+      // If the API call fails (permissions, rate limit, etc.), don't block the build
+      OrchestratorLogger.log(`Runner availability check failed: ${error.message}`);
+
+      return {
+        shouldFallback: false,
+        reason: `Runner check failed (${error.message}) — proceeding with primary provider`,
+        totalRunners: 0,
+        matchingRunners: 0,
+        idleRunners: 0,
+      };
+    }
+  }
+
+  /**
+   * Fetch all runners for a repository, handling pagination.
+   *
+   * Includes defensive limits:
+   * - Maximum page count (MAX_PAGINATION_PAGES) to prevent infinite loops
+   * - Total timeout (PAGINATION_TIMEOUT_MS) to prevent indefinite API calls
+   * - Rate-limit detection (HTTP 403/429 with X-RateLimit-Remaining header)
+   */
+  private static async fetchRunners(octokit: Octokit, owner: string, repo: string): Promise<GitHubRunner[]> {
+    const allRunners: GitHubRunner[] = [];
+    let page = 1;
+    const perPage = 100;
+    const startTime = Date.now();
+
+    while (page <= MAX_PAGINATION_PAGES) {
+      // Check total timeout
+      if (Date.now() - startTime > PAGINATION_TIMEOUT_MS) {
+        OrchestratorLogger.logWarning(
+          `[RunnerAvailability] Pagination timeout reached after ${page - 1} pages and ${Date.now() - startTime}ms. ` +
+            `Using ${allRunners.length} runners found so far.`,
+        );
+        break;
+      }
+
+      let response: any;
+      try {
+        response = await octokit.request('GET /repos/{owner}/{repo}/actions/runners', {
+          owner,
+          repo,
+          per_page: perPage,
+          page,
+        });
+      } catch (requestError: any) {
+        // Octokit throws for non-2xx responses. Check if this is a rate limit error.
+        const status = requestError.status ?? requestError.response?.status;
+        if (status === 403 || status === 429) {
+          const resetTime =
+            requestError.response?.headers?.['x-ratelimit-reset'] ?? requestError.headers?.['x-ratelimit-reset'];
+          const resetMessage = resetTime
+            ? ` Resets at ${new Date(Number.parseInt(String(resetTime), 10) * 1000).toISOString()}`
+            : '';
+          OrchestratorLogger.logWarning(
+            `[RunnerAvailability] GitHub API rate limit reached (HTTP ${status}).${resetMessage} ` +
+              `Using ${allRunners.length} runners found so far.`,
+          );
+          break;
+        }
+        // Re-throw non-rate-limit errors to be handled by the outer catch
+        throw requestError;
+      }
+
+      const runners = (response.data.runners || []) as GitHubRunner[];
+      allRunners.push(...runners);
+
+      if (runners.length < perPage) break;
+      page++;
+    }
+
+    if (page > MAX_PAGINATION_PAGES) {
+      OrchestratorLogger.logWarning(
+        `[RunnerAvailability] Maximum pagination limit reached (${MAX_PAGINATION_PAGES} pages). ` +
+          `Using ${allRunners.length} runners found so far.`,
+      );
+    }
+
+    if (allRunners.length === 0) {
+      OrchestratorLogger.log(
+        '[RunnerAvailability] No runners found. Possible causes: ' +
+          'wrong token permissions (needs repo or actions scope), ' +
+          'no self-hosted runners registered, ' +
+          'or runners are registered at the organization level instead of the repository.',
+      );
+    }
+
+    return allRunners;
+  }
+
+  /**
+   * Filter runners by required labels. A runner matches if it has ALL required labels.
+   * If requiredLabels is empty, all runners match.
+   */
+  private static filterByLabels(runners: GitHubRunner[], requiredLabels: string[]): GitHubRunner[] {
+    if (requiredLabels.length === 0) return runners;
+
+    return runners.filter((runner) => {
+      const runnerLabelNames = runner.labels.map((l) => l.name.toLowerCase());
+
+      return requiredLabels.every((required) => runnerLabelNames.includes(required.toLowerCase()));
+    });
+  }
+}

src/model/orchestrator/services/reliability/build-reliability-service.test.ts

@@ -1,638 +0,0 @@
-import { execSync, execFileSync } from 'node:child_process';
-import fs from 'node:fs';
-import path from 'node:path';
-import { BuildReliabilityService } from './build-reliability-service';
-
-// Mock dependencies
-jest.mock('node:child_process');
-jest.mock('node:fs');
-jest.mock('@actions/core', () => ({
-  info: jest.fn(),
-  warning: jest.fn(),
-}));
-
-const mockExecSync = execSync as jest.MockedFunction<typeof execSync>;
-const mockExecFileSync = execFileSync as jest.MockedFunction<typeof execFileSync>;
-const mockFs = fs as jest.Mocked<typeof fs>;
-
-describe('BuildReliabilityService', () => {
-  beforeEach(() => {
-    jest.clearAllMocks();
-  });
-
-  // =========================================================================
-  // checkGitIntegrity
-  // =========================================================================
-
-  describe('checkGitIntegrity', () => {
-    it('should return true when fsck succeeds with clean output', () => {
-      mockExecSync.mockReturnValue('');
-      const result = BuildReliabilityService.checkGitIntegrity('/repo');
-      expect(result).toBe(true);
-      expect(mockExecSync).toHaveBeenCalledWith(
-        'git -C "/repo" fsck --no-dangling',
-        expect.objectContaining({ encoding: 'utf8' }),
-      );
-    });
-
-    it('should return false when fsck output contains corruption indicators', () => {
-      mockExecSync.mockReturnValue('broken link from tree abc123');
-      const result = BuildReliabilityService.checkGitIntegrity('/repo');
-      expect(result).toBe(false);
-    });
-
-    it('should return false when fsck output contains missing objects', () => {
-      mockExecSync.mockReturnValue('missing blob abc123');
-      const result = BuildReliabilityService.checkGitIntegrity('/repo');
-      expect(result).toBe(false);
-    });
-
-    it('should return false when execSync throws (non-zero exit code)', () => {
-      mockExecSync.mockImplementation(() => {
-        const error: any = new Error('fsck failed');
-        error.stderr = Buffer.from('error: bad object HEAD');
-        throw error;
-      });
-      const result = BuildReliabilityService.checkGitIntegrity('/repo');
-      expect(result).toBe(false);
-    });
-
-    it('should use current directory when no repoPath provided', () => {
-      mockExecSync.mockReturnValue('');
-      BuildReliabilityService.checkGitIntegrity();
-      expect(mockExecSync).toHaveBeenCalledWith('git -C "." fsck --no-dangling', expect.anything());
-    });
-  });
-
-  // =========================================================================
-  // cleanStaleLockFiles
-  // =========================================================================
-
-  describe('cleanStaleLockFiles', () => {
-    it('should return 0 when .git directory does not exist', () => {
-      mockFs.existsSync.mockReturnValue(false);
-      const result = BuildReliabilityService.cleanStaleLockFiles('/repo');
-      expect(result).toBe(0);
-    });
-
-    it('should remove lock files older than 10 minutes', () => {
-      const now = Date.now();
-      const oldTime = now - 15 * 60 * 1000; // 15 minutes ago
-
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.statSync.mockImplementation((filePath: any) => {
-        if (filePath === path.join('/repo', '.git')) {
-          return { isDirectory: () => true } as fs.Stats;
-        }
-        return { mtimeMs: oldTime } as fs.Stats;
-      });
-      mockFs.readdirSync.mockImplementation((dir: any) => {
-        if (dir === path.join('/repo', '.git')) {
-          return [
-            { name: 'index.lock', isDirectory: () => false },
-            { name: 'HEAD.lock', isDirectory: () => false },
-          ] as any;
-        }
-        return [];
-      });
-      mockFs.unlinkSync.mockReturnValue(undefined);
-
-      const result = BuildReliabilityService.cleanStaleLockFiles('/repo');
-      expect(result).toBe(2);
-      expect(mockFs.unlinkSync).toHaveBeenCalledTimes(2);
-    });
-
-    it('should NOT remove lock files younger than 10 minutes', () => {
-      const now = Date.now();
-      const recentTime = now - 2 * 60 * 1000; // 2 minutes ago
-
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.statSync.mockImplementation((filePath: any) => {
-        if (filePath === path.join('/repo', '.git')) {
-          return { isDirectory: () => true } as fs.Stats;
-        }
-        return { mtimeMs: recentTime } as fs.Stats;
-      });
-      mockFs.readdirSync.mockImplementation((dir: any) => {
-        if (dir === path.join('/repo', '.git')) {
-          return [{ name: 'index.lock', isDirectory: () => false }] as any;
-        }
-        return [];
-      });
-
-      const result = BuildReliabilityService.cleanStaleLockFiles('/repo');
-      expect(result).toBe(0);
-      expect(mockFs.unlinkSync).not.toHaveBeenCalled();
-    });
-
-    it('should recursively scan refs directory for lock files', () => {
-      const now = Date.now();
-      const oldTime = now - 15 * 60 * 1000;
-
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.statSync.mockImplementation((filePath: any) => {
-        if (filePath === path.join('/repo', '.git')) {
-          return { isDirectory: () => true } as fs.Stats;
-        }
-        return { mtimeMs: oldTime } as fs.Stats;
-      });
-      mockFs.readdirSync.mockImplementation((dir: any) => {
-        const gitDir = path.join('/repo', '.git');
-        if (dir === gitDir) {
-          return [{ name: 'refs', isDirectory: () => true }] as any;
-        }
-        if (dir === path.join(gitDir, 'refs')) {
-          return [{ name: 'heads', isDirectory: () => true }] as any;
-        }
-        if (dir === path.join(gitDir, 'refs', 'heads')) {
-          return [{ name: 'main.lock', isDirectory: () => false }] as any;
-        }
-        return [];
-      });
-      mockFs.unlinkSync.mockReturnValue(undefined);
-
-      const result = BuildReliabilityService.cleanStaleLockFiles('/repo');
-      expect(result).toBe(1);
-    });
-  });
-
-  // =========================================================================
-  // validateSubmoduleBackingStores
-  // =========================================================================
-
-  describe('validateSubmoduleBackingStores', () => {
-    it('should return empty array when .gitmodules does not exist', () => {
-      mockFs.existsSync.mockReturnValue(false);
-      const result = BuildReliabilityService.validateSubmoduleBackingStores('/repo');
-      expect(result).toEqual([]);
-    });
-
-    it('should detect broken backing store for submodule', () => {
-      mockFs.existsSync.mockImplementation((p: any) => {
-        if (p === path.join('/repo', '.gitmodules')) return true;
-        if (p === path.join('/repo', 'lib/sub', '.git')) return true;
-        // Backing store does not exist
-        return false;
-      });
-      mockFs.readFileSync.mockImplementation((p: any) => {
-        if (p === path.join('/repo', '.gitmodules')) {
-          return '[submodule "sub"]\n\tpath = lib/sub\n\turl = https://example.com/sub.git';
-        }
-        if (p === path.join('/repo', 'lib/sub', '.git')) {
-          return 'gitdir: ../../.git/modules/lib/sub';
-        }
-        return '';
-      });
-      mockFs.statSync.mockReturnValue({ isFile: () => true } as fs.Stats);
-
-      const result = BuildReliabilityService.validateSubmoduleBackingStores('/repo');
-      expect(result).toContain('lib/sub');
-    });
-
-    it('should return empty array when all submodule backing stores are valid', () => {
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.readFileSync.mockImplementation((p: any) => {
-        if (p === path.join('/repo', '.gitmodules')) {
-          return '[submodule "sub"]\n\tpath = lib/sub\n\turl = https://example.com/sub.git';
-        }
-        if (p === path.join('/repo', 'lib/sub', '.git')) {
-          return 'gitdir: ../../.git/modules/lib/sub';
-        }
-        return '';
-      });
-      mockFs.statSync.mockReturnValue({ isFile: () => true } as fs.Stats);
-
-      const result = BuildReliabilityService.validateSubmoduleBackingStores('/repo');
-      expect(result).toEqual([]);
-    });
-  });
-
-  // =========================================================================
-  // recoverCorruptedRepo
-  // =========================================================================
-
-  describe('recoverCorruptedRepo', () => {
-    it('should orchestrate fsck cleanup and re-fetch, returning true on success', () => {
-      // cleanStaleLockFiles: no .git dir
-      mockFs.existsSync.mockReturnValue(false);
-      mockFs.statSync.mockReturnValue({ isDirectory: () => false } as fs.Stats);
-
-      // fetch succeeds, then fsck succeeds
-      mockExecSync.mockReturnValue('');
-
-      const result = BuildReliabilityService.recoverCorruptedRepo('/repo');
-      expect(result).toBe(true);
-      // Should have called fetch
-      expect(mockExecSync).toHaveBeenCalledWith('git -C "/repo" fetch --all', expect.anything());
-    });
-
-    it('should return false when recovery fails to restore integrity', () => {
-      mockFs.existsSync.mockReturnValue(false);
-      mockFs.statSync.mockReturnValue({ isDirectory: () => false } as fs.Stats);
-
-      // fetch succeeds, but fsck fails
-      mockExecSync.mockImplementation((cmd: any) => {
-        if (typeof cmd === 'string' && cmd.includes('fetch')) return '';
-        if (typeof cmd === 'string' && cmd.includes('fsck')) {
-          return 'missing blob abc123';
-        }
-        return '';
-      });
-
-      const result = BuildReliabilityService.recoverCorruptedRepo('/repo');
-      expect(result).toBe(false);
-    });
-
-    it('should continue recovery even when fetch fails', () => {
-      mockFs.existsSync.mockReturnValue(false);
-      mockFs.statSync.mockReturnValue({ isDirectory: () => false } as fs.Stats);
-
-      let callCount = 0;
-      mockExecSync.mockImplementation((cmd: any) => {
-        callCount++;
-        if (typeof cmd === 'string' && cmd.includes('fetch')) {
-          throw new Error('network error');
-        }
-        // fsck call
-        return '';
-      });
-
-      const result = BuildReliabilityService.recoverCorruptedRepo('/repo');
-      // Should still attempt fsck after failed fetch
-      expect(callCount).toBeGreaterThanOrEqual(2);
-    });
-  });
-
-  // =========================================================================
-  // cleanReservedFilenames
-  // =========================================================================
-
-  describe('cleanReservedFilenames', () => {
-    it('should return empty array when Assets directory does not exist', () => {
-      mockFs.existsSync.mockReturnValue(false);
-      const result = BuildReliabilityService.cleanReservedFilenames('/project');
-      expect(result).toEqual([]);
-    });
-
-    it('should remove files with reserved names (con, prn, aux, nul)', () => {
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.readdirSync.mockImplementation((dir: any) => {
-        if (dir === path.join('/project', 'Assets')) {
-          return [
-            { name: 'con.txt', isDirectory: () => false },
-            { name: 'PRN.meta', isDirectory: () => false },
-            { name: 'aux.shader', isDirectory: () => false },
-            { name: 'nul.png', isDirectory: () => false },
-            { name: 'valid-file.cs', isDirectory: () => false },
-          ] as any;
-        }
-        return [];
-      });
-      mockFs.unlinkSync.mockReturnValue(undefined);
-
-      const result = BuildReliabilityService.cleanReservedFilenames('/project');
-      expect(result).toHaveLength(4);
-      expect(mockFs.unlinkSync).toHaveBeenCalledTimes(4);
-    });
-
-    it('should remove directories with reserved names', () => {
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.readdirSync.mockImplementation((dir: any) => {
-        if (dir === path.join('/project', 'Assets')) {
-          return [{ name: 'com1', isDirectory: () => true }] as any;
-        }
-        return [];
-      });
-      mockFs.rmSync.mockReturnValue(undefined);
-
-      const result = BuildReliabilityService.cleanReservedFilenames('/project');
-      expect(result).toHaveLength(1);
-      expect(mockFs.rmSync).toHaveBeenCalledWith(path.join('/project', 'Assets', 'com1'), {
-        recursive: true,
-        force: true,
-      });
-    });
-
-    it('should detect COM1 through COM9 and LPT1 through LPT9', () => {
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.readdirSync.mockImplementation((dir: any) => {
-        if (dir === path.join('/project', 'Assets')) {
-          return [
-            { name: 'com1.txt', isDirectory: () => false },
-            { name: 'COM9.meta', isDirectory: () => false },
-            { name: 'lpt1.dat', isDirectory: () => false },
-            { name: 'LPT9.log', isDirectory: () => false },
-          ] as any;
-        }
-        return [];
-      });
-      mockFs.unlinkSync.mockReturnValue(undefined);
-
-      const result = BuildReliabilityService.cleanReservedFilenames('/project');
-      expect(result).toHaveLength(4);
-    });
-
-    it('should not remove files that merely contain reserved names as substrings', () => {
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.readdirSync.mockImplementation((dir: any) => {
-        if (dir === path.join('/project', 'Assets')) {
-          return [
-            { name: 'controller.cs', isDirectory: () => false },
-            { name: 'printer-utils.cs', isDirectory: () => false },
-            { name: 'auxiliary.shader', isDirectory: () => false },
-          ] as any;
-        }
-        return [];
-      });
-
-      const result = BuildReliabilityService.cleanReservedFilenames('/project');
-      expect(result).toHaveLength(0);
-    });
-  });
-
-  // =========================================================================
-  // getAvailableSpaceMB
-  // =========================================================================
-
-  describe('getAvailableSpaceMB', () => {
-    it('should return -1 when the check fails', () => {
-      mockExecFileSync.mockImplementation(() => {
-        throw new Error('Command failed');
-      });
-
-      const result = BuildReliabilityService.getAvailableSpaceMB('/some/path');
-      expect(result).toBe(-1);
-    });
-
-    it('should parse wmic output on Windows', () => {
-      const originalPlatform = process.platform;
-      Object.defineProperty(process, 'platform', { value: 'win32' });
-
-      // 10 GB in bytes
-      mockExecFileSync.mockReturnValue('\r\nFreeSpace=10737418240\r\n' as any);
-
-      const result = BuildReliabilityService.getAvailableSpaceMB('C:\\builds');
-      // 10737418240 / (1024 * 1024) = 10240 MB
-      expect(result).toBeCloseTo(10240, 0);
-
-      Object.defineProperty(process, 'platform', { value: originalPlatform });
-    });
-
-    it('should parse df output on Unix', () => {
-      const originalPlatform = process.platform;
-      Object.defineProperty(process, 'platform', { value: 'linux' });
-
-      mockExecFileSync.mockReturnValue('  Avail\n  5120M\n' as any);
-
-      const result = BuildReliabilityService.getAvailableSpaceMB('/builds');
-      expect(result).toBe(5120);
-
-      Object.defineProperty(process, 'platform', { value: originalPlatform });
-    });
-  });
-
-  // =========================================================================
-  // getDirectorySizeMB
-  // =========================================================================
-
-  describe('getDirectorySizeMB', () => {
-    it('should return file size for a single file', () => {
-      // 5 MB in bytes
-      mockFs.statSync.mockReturnValue({ isDirectory: () => false, size: 5 * 1024 * 1024 } as any);
-
-      const result = BuildReliabilityService.getDirectorySizeMB('/path/to/file.zip');
-      expect(result).toBeCloseTo(5, 0);
-    });
-
-    it('should return total size for a directory tree', () => {
-      const subDir = path.join('/build', 'sub');
-
-      mockFs.statSync.mockImplementation((p: any) => {
-        const pathStr = typeof p === 'string' ? p : p.toString();
-        if (pathStr === '/build' || pathStr === subDir) {
-          return { isDirectory: () => true, size: 0 } as any;
-        }
-
-        return { isDirectory: () => false, size: 1024 * 1024 } as any; // 1 MB each
-      });
-
-      mockFs.readdirSync.mockImplementation((dirPath: any, _options?: any) => {
-        const dirStr = typeof dirPath === 'string' ? dirPath : dirPath.toString();
-        if (dirStr === '/build') {
-          return [
-            { name: 'file1.bin', isDirectory: () => false },
-            { name: 'sub', isDirectory: () => true },
-          ] as any;
-        }
-        if (dirStr === subDir) {
-          return [{ name: 'file2.bin', isDirectory: () => false }] as any;
-        }
-
-        return [] as any;
-      });
-
-      const result = BuildReliabilityService.getDirectorySizeMB('/build');
-      expect(result).toBeCloseTo(2, 0); // 2 files * 1 MB each
-    });
-
-    it('should return -1 when calculation fails', () => {
-      mockFs.statSync.mockImplementation(() => {
-        throw new Error('Access denied');
-      });
-
-      const result = BuildReliabilityService.getDirectorySizeMB('/inaccessible');
-      expect(result).toBe(-1);
-    });
-  });
-
-  // =========================================================================
-  // archiveBuildOutput
-  // =========================================================================
-
-  describe('archiveBuildOutput', () => {
-    it('should skip archiving when source path does not exist', () => {
-      mockFs.existsSync.mockReturnValue(false);
-      BuildReliabilityService.archiveBuildOutput('/builds/output', '/archives');
-      expect(mockExecSync).not.toHaveBeenCalled();
-    });
-
-    it('should create archive directory and tar.gz output', () => {
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.mkdirSync.mockReturnValue(undefined as any);
-      mockExecSync.mockReturnValue('');
-      // Make disk space check return unknown so we proceed
-      mockExecFileSync.mockImplementation(() => {
-        throw new Error('Command not found');
-      });
-      mockFs.statSync.mockImplementation(() => {
-        throw new Error('Not mocked');
-      });
-
-      BuildReliabilityService.archiveBuildOutput('/builds/output', '/archives');
-
-      expect(mockFs.mkdirSync).toHaveBeenCalledWith('/archives', { recursive: true });
-      expect(mockExecSync).toHaveBeenCalledWith(expect.stringContaining('tar -czf'), expect.anything());
-    });
-
-    it('should skip archival when insufficient disk space', () => {
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.mkdirSync.mockReturnValue(undefined as any);
-
-      // Source is 1000 MB
-      mockFs.statSync.mockImplementation((p: any) => {
-        const pathStr = typeof p === 'string' ? p : p.toString();
-        if (pathStr.endsWith('big-file.bin')) {
-          return { isDirectory: () => false, size: 1000 * 1024 * 1024 } as any;
-        }
-        return { isDirectory: () => true, size: 0 } as any;
-      });
-      mockFs.readdirSync.mockImplementation(() => {
-        return [{ name: 'big-file.bin', isDirectory: () => false }] as any;
-      });
-
-      // Only 500 MB available
-      const originalPlatform = process.platform;
-      Object.defineProperty(process, 'platform', { value: 'linux' });
-      mockExecFileSync.mockReturnValue('  Avail\n  500M\n' as any);
-
-      BuildReliabilityService.archiveBuildOutput('/builds/output', '/archives');
-
-      // Should NOT have attempted the tar command
-      expect(mockExecSync).not.toHaveBeenCalledWith(expect.stringContaining('tar'), expect.anything());
-
-      Object.defineProperty(process, 'platform', { value: originalPlatform });
-    });
-
-    it('should clean up partial archive on tar failure', () => {
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.mkdirSync.mockReturnValue(undefined as any);
-      mockFs.unlinkSync.mockReturnValue(undefined);
-
-      // Make disk space check return unknown so we proceed
-      mockExecFileSync.mockImplementation(() => {
-        throw new Error('Command not found');
-      });
-      mockFs.statSync.mockImplementation(() => {
-        throw new Error('Not mocked');
-      });
-
-      // tar command fails
-      mockExecSync.mockImplementation(() => {
-        const error: any = new Error('tar failed');
-        error.stderr = Buffer.from('No space left on device');
-        throw error;
-      });
-
-      BuildReliabilityService.archiveBuildOutput('/builds/output', '/archives');
-
-      // Should have attempted to clean up the partial archive
-      // (existsSync returns true for the partial file)
-      expect(mockFs.unlinkSync).toHaveBeenCalled();
-    });
-
-    it('should proceed with warning when disk space check fails', () => {
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.mkdirSync.mockReturnValue(undefined as any);
-      mockExecSync.mockReturnValue('');
-
-      // Disk space check fails
-      mockExecFileSync.mockImplementation(() => {
-        throw new Error('Command not found');
-      });
-      // Directory size check also fails
-      mockFs.statSync.mockImplementation(() => {
-        throw new Error('Not mocked');
-      });
-
-      BuildReliabilityService.archiveBuildOutput('/builds/output', '/archives');
-
-      // Should still proceed with tar
-      expect(mockExecSync).toHaveBeenCalledWith(expect.stringContaining('tar -czf'), expect.anything());
-    });
-  });
-
-  // =========================================================================
-  // enforceRetention
-  // =========================================================================
-
-  describe('enforceRetention', () => {
-    it('should return 0 when archive path does not exist', () => {
-      mockFs.existsSync.mockReturnValue(false);
-      const result = BuildReliabilityService.enforceRetention('/archive', 30);
-      expect(result).toBe(0);
-    });
-
-    it('should remove archives older than retention period', () => {
-      const now = Date.now();
-      const oldTime = now - 45 * 24 * 60 * 60 * 1000; // 45 days ago
-      const recentTime = now - 5 * 24 * 60 * 60 * 1000; // 5 days ago
-
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.readdirSync.mockReturnValue([
-        { name: 'build-old.tar.gz', isDirectory: () => false },
-        { name: 'build-recent.tar.gz', isDirectory: () => false },
-      ] as any);
-      mockFs.statSync.mockImplementation((p: any) => {
-        if ((p as string).includes('old')) {
-          return { mtimeMs: oldTime } as fs.Stats;
-        }
-        return { mtimeMs: recentTime } as fs.Stats;
-      });
-      mockFs.unlinkSync.mockReturnValue(undefined);
-
-      const result = BuildReliabilityService.enforceRetention('/archive', 30);
-      expect(result).toBe(1);
-      expect(mockFs.unlinkSync).toHaveBeenCalledTimes(1);
-    });
-
-    it('should keep all archives within retention period', () => {
-      const now = Date.now();
-      const recentTime = now - 5 * 24 * 60 * 60 * 1000;
-
-      mockFs.existsSync.mockReturnValue(true);
-      mockFs.readdirSync.mockReturnValue([
-        { name: 'build-1.tar.gz', isDirectory: () => false },
-        { name: 'build-2.tar.gz', isDirectory: () => false },
-      ] as any);
-      mockFs.statSync.mockReturnValue({ mtimeMs: recentTime } as fs.Stats);
-
-      const result = BuildReliabilityService.enforceRetention('/archive', 30);
-      expect(result).toBe(0);
-    });
-  });
-
-  // =========================================================================
-  // configureGitEnvironment
-  // =========================================================================
-
-  describe('configureGitEnvironment', () => {
-    it('should set GIT_TERMINAL_PROMPT=0 in process.env', () => {
-      mockExecSync.mockReturnValue('');
-      BuildReliabilityService.configureGitEnvironment();
-      expect(process.env.GIT_TERMINAL_PROMPT).toBe('0');
-    });
-
-    it('should configure http.postBuffer via git config', () => {
-      mockExecSync.mockReturnValue('');
-      BuildReliabilityService.configureGitEnvironment();
-      expect(mockExecSync).toHaveBeenCalledWith('git config --global http.postBuffer 524288000', expect.anything());
-    });
-
-    it('should configure core.longpaths via git config', () => {
-      mockExecSync.mockReturnValue('');
-      BuildReliabilityService.configureGitEnvironment();
-      expect(mockExecSync).toHaveBeenCalledWith('git config --global core.longpaths true', expect.anything());
-    });
-
-    it('should warn but not throw when git config commands fail', () => {
-      const core = require('@actions/core');
-      mockExecSync.mockImplementation(() => {
-        throw new Error('git config failed');
-      });
-
-      // Should not throw
-      expect(() => BuildReliabilityService.configureGitEnvironment()).not.toThrow();
-      expect(core.warning).toHaveBeenCalled();
-    });
-  });
-});

src/model/orchestrator/services/reliability/build-reliability-service.ts

@@ -1,527 +0,0 @@
-import { execSync, execFileSync } from 'node:child_process';
-import fs from 'node:fs';
-import path from 'node:path';
-import * as core from '@actions/core';
-
-/**
- * Build reliability features for hardening CI pipelines.
- * Provides git integrity checks, stale lock cleanup, submodule validation,
- * reserved filename removal, build archival, and git environment configuration.
- * All features are opt-in and fail gracefully (warnings only).
- */
-export class BuildReliabilityService {
-  // Windows reserved device names that cause Unity asset importer infinite loops
-  private static readonly RESERVED_NAMES = new Set([
-    'con',
-    'prn',
-    'aux',
-    'nul',
-    'com1',
-    'com2',
-    'com3',
-    'com4',
-    'com5',
-    'com6',
-    'com7',
-    'com8',
-    'com9',
-    'lpt1',
-    'lpt2',
-    'lpt3',
-    'lpt4',
-    'lpt5',
-    'lpt6',
-    'lpt7',
-    'lpt8',
-    'lpt9',
-  ]);
-
-  // Lock files to look for in the .git directory
-  private static readonly LOCK_FILE_NAMES = new Set(['index.lock', 'shallow.lock', 'config.lock', 'HEAD.lock']);
-
-  // Maximum age in milliseconds before a lock file is considered stale (10 minutes)
-  private static readonly LOCK_FILE_MAX_AGE_MS = 10 * 60 * 1000;
-
-  /**
-   * Run git fsck to check repository integrity.
-   * Returns true if the repo is healthy, false if corruption detected.
-   */
-  static checkGitIntegrity(repoPath: string = '.'): boolean {
-    core.info(`[Reliability] Checking git integrity in ${repoPath}`);
-
-    try {
-      const output = execSync(`git -C "${repoPath}" fsck --no-dangling`, {
-        encoding: 'utf8',
-        timeout: 120_000,
-        stdio: ['pipe', 'pipe', 'pipe'],
-      });
-
-      // Parse output for corruption indicators
-      const corruptionPatterns = [
-        /broken link/i,
-        /missing (blob|tree|commit|tag)/i,
-        /dangling/i,
-        /corrupt/i,
-        /error in /i,
-      ];
-
-      for (const pattern of corruptionPatterns) {
-        if (pattern.test(output)) {
-          core.warning(`[Reliability] Git integrity check found issues: ${output.trim()}`);
-          return false;
-        }
-      }
-
-      core.info('[Reliability] Git integrity check passed');
-      return true;
-    } catch (error: any) {
-      // execSync throws on non-zero exit code
-      const stderr = error.stderr?.toString() ?? error.message;
-      core.warning(`[Reliability] Git integrity check failed: ${stderr}`);
-      return false;
-    }
-  }
-
-  /**
-   * Remove stale .lock files from the .git directory.
-   * Only removes lock files older than 10 minutes to avoid interfering with active operations.
-   * Returns the number of lock files removed.
-   */
-  static cleanStaleLockFiles(repoPath: string = '.'): number {
-    const gitDir = path.join(repoPath, '.git');
-    if (!fs.existsSync(gitDir) || !fs.statSync(gitDir).isDirectory()) {
-      return 0;
-    }
-
-    core.info(`[Reliability] Scanning for stale lock files in ${gitDir}`);
-    const now = Date.now();
-    let removed = 0;
-
-    const cleanDirectory = (directory: string): void => {
-      if (!fs.existsSync(directory)) return;
-
-      try {
-        const entries = fs.readdirSync(directory, { withFileTypes: true });
-        for (const entry of entries) {
-          const fullPath = path.join(directory, entry.name);
-          if (entry.isDirectory()) {
-            cleanDirectory(fullPath);
-          } else if (entry.name.endsWith('.lock')) {
-            // Check if it is a known lock file location OR under refs/
-            const relativePath = path.relative(gitDir, fullPath);
-            const isKnownLock = BuildReliabilityService.LOCK_FILE_NAMES.has(entry.name);
-            const isRefsLock = relativePath.startsWith('refs' + path.sep);
-
-            if (isKnownLock || isRefsLock) {
-              try {
-                const stat = fs.statSync(fullPath);
-                const ageMs = now - stat.mtimeMs;
-
-                if (ageMs > BuildReliabilityService.LOCK_FILE_MAX_AGE_MS) {
-                  fs.unlinkSync(fullPath);
-                  removed++;
-                  core.info(
-                    `[Reliability] Removed stale lock file (age: ${Math.round(ageMs / 1000)}s): ${relativePath}`,
-                  );
-                } else {
-                  core.info(
-                    `[Reliability] Lock file is recent (age: ${Math.round(ageMs / 1000)}s), skipping: ${relativePath}`,
-                  );
-                }
-              } catch {
-                core.warning(`[Reliability] Could not remove lock file: ${fullPath}`);
-              }
-            }
-          }
-        }
-      } catch {
-        // Directory not accessible
-      }
-    };
-
-    cleanDirectory(gitDir);
-
-    if (removed > 0) {
-      core.info(`[Reliability] Cleaned ${removed} stale lock file(s)`);
-    } else {
-      core.info('[Reliability] No stale lock files found');
-    }
-
-    return removed;
-  }
-
-  /**
-   * Validate that submodule .git files point to existing backing stores
-   * under .git/modules/. Returns list of submodule paths with broken backing stores.
-   */
-  static validateSubmoduleBackingStores(repoPath: string = '.'): string[] {
-    const broken: string[] = [];
-    const gitmodulesPath = path.join(repoPath, '.gitmodules');
-
-    if (!fs.existsSync(gitmodulesPath)) {
-      core.info('[Reliability] No .gitmodules found, skipping submodule validation');
-      return broken;
-    }
-
-    core.info(`[Reliability] Validating submodule backing stores in ${repoPath}`);
-
-    try {
-      const content = fs.readFileSync(gitmodulesPath, 'utf8');
-      const pathMatches = content.matchAll(/path\s*=\s*(.+)/g);
-
-      for (const match of pathMatches) {
-        const submodulePath = match[1].trim();
-        const gitFile = path.join(repoPath, submodulePath, '.git');
-
-        if (!fs.existsSync(gitFile)) {
-          // Submodule not initialized -- not necessarily broken
-          continue;
-        }
-
-        try {
-          const stat = fs.statSync(gitFile);
-          if (stat.isFile()) {
-            // .git is a file -- should contain "gitdir: <path>"
-            const gitFileContent = fs.readFileSync(gitFile, 'utf8').trim();
-            const gitdirMatch = gitFileContent.match(/^gitdir:\s*(.+)$/);
-
-            if (gitdirMatch) {
-              const backingStore = path.resolve(path.join(repoPath, submodulePath), gitdirMatch[1]);
-              if (!fs.existsSync(backingStore)) {
-                broken.push(submodulePath);
-                core.warning(`[Reliability] Submodule ${submodulePath} has broken backing store: ${backingStore}`);
-              } else {
-                core.info(`[Reliability] Submodule ${submodulePath} backing store OK`);
-              }
-            } else {
-              broken.push(submodulePath);
-              core.warning(`[Reliability] Submodule ${submodulePath} .git file has invalid format`);
-            }
-          }
-        } catch {
-          // Can't read .git file
-          core.warning(`[Reliability] Could not read .git file for submodule: ${submodulePath}`);
-        }
-      }
-    } catch (error: any) {
-      core.warning(`[Reliability] Could not read .gitmodules: ${error.message}`);
-    }
-
-    if (broken.length > 0) {
-      core.warning(`[Reliability] ${broken.length} submodule(s) have broken backing stores`);
-    } else {
-      core.info('[Reliability] All submodule backing stores are valid');
-    }
-
-    return broken;
-  }
-
-  /**
-   * Orchestrate recovery of a corrupted repository.
-   * Sequence: fsck -> clean locks -> re-fetch -> retry fsck.
-   * Returns true if recovery succeeded.
-   */
-  static recoverCorruptedRepo(repoPath: string = '.'): boolean {
-    core.warning(`[Reliability] Attempting automatic recovery for ${repoPath}`);
-
-    // Step 1: Clean stale lock files that may be preventing operations
-    const locksRemoved = BuildReliabilityService.cleanStaleLockFiles(repoPath);
-    if (locksRemoved > 0) {
-      core.info(`[Reliability] Recovery: cleaned ${locksRemoved} lock file(s)`);
-    }
-
-    // Step 2: Re-fetch to restore missing objects
-    try {
-      core.info('[Reliability] Recovery: re-fetching from remote');
-      execSync(`git -C "${repoPath}" fetch --all`, {
-        encoding: 'utf8',
-        timeout: 300_000,
-        stdio: ['pipe', 'pipe', 'pipe'],
-      });
-      core.info('[Reliability] Recovery: fetch completed');
-    } catch (error: any) {
-      core.warning(`[Reliability] Recovery: fetch failed: ${error.stderr?.toString() ?? error.message}`);
-    }
-
-    // Step 3: Retry fsck
-    const healthy = BuildReliabilityService.checkGitIntegrity(repoPath);
-    if (healthy) {
-      core.info('[Reliability] Recovery succeeded -- repository is healthy');
-    } else {
-      core.warning('[Reliability] Recovery failed -- repository still has integrity issues');
-    }
-
-    return healthy;
-  }
-
-  /**
-   * Scan a directory tree for files/directories with Windows reserved names.
-   * These names (con, prn, aux, nul, com1-9, lpt1-9) with any extension
-   * cause Unity asset importer infinite loops on Windows.
-   * Returns list of paths that were removed.
-   */
-  static cleanReservedFilenames(projectPath: string): string[] {
-    const assetsPath = path.join(projectPath, 'Assets');
-    if (!fs.existsSync(assetsPath)) {
-      core.info(`[Reliability] No Assets directory found at ${assetsPath}, skipping reserved filename scan`);
-      return [];
-    }
-
-    core.info(`[Reliability] Scanning for reserved filenames in ${assetsPath}`);
-    const cleaned: string[] = [];
-
-    const scanDirectory = (directory: string): void => {
-      try {
-        const entries = fs.readdirSync(directory, { withFileTypes: true });
-        for (const entry of entries) {
-          const nameWithoutExtension = entry.name.split('.')[0].toLowerCase();
-          const fullPath = path.join(directory, entry.name);
-
-          if (BuildReliabilityService.RESERVED_NAMES.has(nameWithoutExtension)) {
-            try {
-              if (entry.isDirectory()) {
-                fs.rmSync(fullPath, { recursive: true, force: true });
-              } else {
-                fs.unlinkSync(fullPath);
-              }
-              cleaned.push(fullPath);
-              core.warning(`[Reliability] Removed reserved filename: ${fullPath}`);
-            } catch {
-              core.warning(`[Reliability] Could not remove reserved filename: ${fullPath}`);
-            }
-          } else if (entry.isDirectory()) {
-            scanDirectory(fullPath);
-          }
-        }
-      } catch {
-        // Directory not accessible
-      }
-    };
-
-    scanDirectory(assetsPath);
-
-    if (cleaned.length > 0) {
-      core.warning(`[Reliability] Cleaned ${cleaned.length} reserved filename(s)`);
-    } else {
-      core.info('[Reliability] No reserved filenames found');
-    }
-
-    return cleaned;
-  }
-
-  /**
-   * Get available disk space in megabytes for a given directory.
-   * Returns -1 if the check fails (unknown space).
-   *
-   * Cross-platform: uses wmic on Windows, df on Unix.
-   */
-  static getAvailableSpaceMB(directoryPath: string): number {
-    try {
-      if (process.platform === 'win32') {
-        const drive = path.parse(directoryPath).root;
-        const driveLetter = drive.replace(/[:\\\/]/g, '');
-        const output = execFileSync(
-          'wmic',
-          ['logicaldisk', 'where', `DeviceID='${driveLetter}:'`, 'get', 'FreeSpace', '/value'],
-          { encoding: 'utf8', timeout: 10_000 },
-        );
-        const match = output.match(/FreeSpace=(\d+)/);
-
-        return match ? Number.parseInt(match[1], 10) / (1024 * 1024) : -1;
-      } else {
-        const output = execFileSync('df', ['-BM', '--output=avail', directoryPath], {
-          encoding: 'utf8',
-          timeout: 10_000,
-        });
-        const lines = output.trim().split('\n');
-
-        return Number.parseInt(lines[lines.length - 1], 10);
-      }
-    } catch {
-      return -1; // Unknown, caller should proceed with warning
-    }
-  }
-
-  /**
-   * Calculate the total size of a directory in megabytes.
-   * Returns -1 if the calculation fails.
-   */
-  static getDirectorySizeMB(directoryPath: string): number {
-    try {
-      const stat = fs.statSync(directoryPath);
-      if (!stat.isDirectory()) {
-        return stat.size / (1024 * 1024);
-      }
-
-      let totalBytes = 0;
-      const walkDirectory = (dir: string): void => {
-        const entries = fs.readdirSync(dir, { withFileTypes: true });
-        for (const entry of entries) {
-          const fullPath = path.join(dir, entry.name);
-          if (entry.isDirectory()) {
-            walkDirectory(fullPath);
-          } else {
-            try {
-              totalBytes += fs.statSync(fullPath).size;
-            } catch {
-              // Skip inaccessible files
-            }
-          }
-        }
-      };
-
-      walkDirectory(directoryPath);
-
-      return totalBytes / (1024 * 1024);
-    } catch {
-      return -1;
-    }
-  }
-
-  /**
-   * Create a tar.gz archive of build output.
-   *
-   * Validates disk space before archiving. Skips archival with a warning
-   * if insufficient space is detected, preventing partial writes on full disks.
-   */
-  static archiveBuildOutput(sourcePath: string, archivePath: string): void {
-    if (!fs.existsSync(sourcePath)) {
-      core.info(`[Reliability] No build output to archive at ${sourcePath}`);
-      return;
-    }
-
-    fs.mkdirSync(archivePath, { recursive: true });
-
-    // Check available disk space before archiving
-    const sourceSizeMB = BuildReliabilityService.getDirectorySizeMB(sourcePath);
-    const availableSpaceMB = BuildReliabilityService.getAvailableSpaceMB(archivePath);
-
-    if (sourceSizeMB >= 0 && availableSpaceMB >= 0) {
-      const neededMB = Math.ceil(sourceSizeMB * 1.1); // 10% safety margin
-      if (availableSpaceMB < neededMB) {
-        core.warning(
-          `[Reliability] Insufficient disk space for archive. ` +
-            `Need ~${neededMB}MB, available: ${Math.floor(availableSpaceMB)}MB. Skipping archive.`,
-        );
-        return;
-      }
-      core.info(
-        `[Reliability] Disk space check passed: need ~${neededMB}MB, available: ${Math.floor(availableSpaceMB)}MB`,
-      );
-    } else if (availableSpaceMB < 0) {
-      core.warning('[Reliability] Could not determine available disk space. Proceeding with archive cautiously.');
-    }
-
-    const timestamp = new Date().toISOString().replace(/[.:]/g, '-');
-    const archiveFile = path.join(archivePath, `build-${timestamp}.tar.gz`);
-
-    try {
-      execSync(`tar -czf "${archiveFile}" -C "${path.dirname(sourcePath)}" "${path.basename(sourcePath)}"`, {
-        encoding: 'utf8',
-        timeout: 600_000,
-        stdio: ['pipe', 'pipe', 'pipe'],
-      });
-      core.info(`[Reliability] Build output archived to ${archiveFile}`);
-    } catch (error: any) {
-      core.warning(`[Reliability] Failed to archive build output: ${error.stderr?.toString() ?? error.message}`);
-
-      // Clean up partial archive if it exists to avoid leaving corrupted files
-      try {
-        if (fs.existsSync(archiveFile)) {
-          fs.unlinkSync(archiveFile);
-          core.info(`[Reliability] Cleaned up partial archive: ${archiveFile}`);
-        }
-      } catch {
-        // Best-effort cleanup
-      }
-    }
-  }
-
-  /**
-   * Enforce retention policy -- delete archives older than the retention period.
-   * Returns the number of old archives removed.
-   */
-  static enforceRetention(archivePath: string, retentionDays: number): number {
-    if (!fs.existsSync(archivePath)) {
-      return 0;
-    }
-
-    const now = Date.now();
-    const retentionMs = retentionDays * 24 * 60 * 60 * 1000;
-    let removed = 0;
-
-    try {
-      const entries = fs.readdirSync(archivePath, { withFileTypes: true });
-      for (const entry of entries) {
-        const fullPath = path.join(archivePath, entry.name);
-        try {
-          const stat = fs.statSync(fullPath);
-          const ageMs = now - stat.mtimeMs;
-
-          if (ageMs > retentionMs) {
-            if (entry.isDirectory()) {
-              fs.rmSync(fullPath, { recursive: true, force: true });
-            } else {
-              fs.unlinkSync(fullPath);
-            }
-            removed++;
-            core.info(
-              `[Reliability] Removed old archive: ${entry.name} (age: ${Math.round(
-                ageMs / (24 * 60 * 60 * 1000),
-              )} days)`,
-            );
-          }
-        } catch {
-          core.warning(`[Reliability] Could not process archive entry: ${fullPath}`);
-        }
-      }
-    } catch {
-      core.warning(`[Reliability] Could not read archive directory: ${archivePath}`);
-      return 0;
-    }
-
-    if (removed > 0) {
-      core.info(
-        `[Reliability] Retention enforced: removed ${removed} old archive(s), retention: ${retentionDays} days`,
-      );
-    }
-
-    return removed;
-  }
-
-  /**
-   * Configure git environment variables for CI reliability.
-   * Sets GIT_TERMINAL_PROMPT=0, increases http.postBuffer, enables core.longpaths.
-   */
-  static configureGitEnvironment(): void {
-    core.info('[Reliability] Configuring git environment for CI');
-
-    // Prevent git from prompting for credentials (hangs in CI)
-    process.env.GIT_TERMINAL_PROMPT = '0';
-    core.info('[Reliability] Set GIT_TERMINAL_PROMPT=0');
-
-    try {
-      // Increase http.postBuffer to 500MB for large pushes
-      execSync('git config --global http.postBuffer 524288000', {
-        encoding: 'utf8',
-        timeout: 10_000,
-        stdio: ['pipe', 'pipe', 'pipe'],
-      });
-      core.info('[Reliability] Set http.postBuffer=524288000 (500MB)');
-    } catch (error: any) {
-      core.warning(`[Reliability] Could not set http.postBuffer: ${error.message}`);
-    }
-
-    try {
-      // Enable long paths on Windows
-      execSync('git config --global core.longpaths true', {
-        encoding: 'utf8',
-        timeout: 10_000,
-        stdio: ['pipe', 'pipe', 'pipe'],
-      });
-      core.info('[Reliability] Set core.longpaths=true');
-    } catch (error: any) {
-      core.warning(`[Reliability] Could not set core.longpaths: ${error.message}`);
-    }
-  }
-}

src/model/orchestrator/services/reliability/index.ts

@@ -1 +0,0 @@
-export { BuildReliabilityService } from './build-reliability-service';