Copier Tool: QA fixes post-testing for sample app usage

examples-copier/.gitignore

@@ -1,5 +1,6 @@
 # Binaries
 examples-copier
+code-copier
 *.exe
 *.exe~
 *.dll

examples-copier/QUICK-REFERENCE.md

@@ -108,19 +108,25 @@ commit_strategy:
 ## Message Templates
 
 ### Available Variables
-- `${rule_name}` - Copy rule name
-- `${source_repo}` - Source repository
-- `${target_repo}` - Target repository
-- `${source_branch}` - Source branch
-- `${target_branch}` - Target branch
-- `${file_count}` - Number of files
-- Custom variables from regex patterns
+- `${rule_name}` - Copy rule name (e.g., "java-aggregation-examples")
+- `${source_repo}` - Source repository (e.g., "mongodb/aggregation-tasks")
+- `${target_repo}` - Target repository (e.g., "mongodb/vector-search")
+- `${source_branch}` - Source branch (e.g., "main")
+- `${target_branch}` - Target branch (e.g., "main")
+- `${file_count}` - Number of files (e.g., "3")
+- `${pr_number}` - Source PR number (e.g., "42")
+- `${commit_sha}` - Source commit SHA (e.g., "abc123")
+- Custom variables from regex patterns (e.g., `${lang}`, `${file}`)
 
 ### Examples
 ```yaml
 commit_message: "Update ${category} examples from ${lang}"
-pr_title: "Update ${category} examples"
-pr_body: "Copying ${file_count} files from ${source_repo}"
+pr_title: "Update ${lang} examples"
+pr_body: |
+  Files updated: ${file_count} using ${rule_name} match pattern
+
+  Source: ${source_repo}
+  PR: #${pr_number}
 ```
 
 ## API Endpoints

examples-copier/README.md

@@ -458,15 +458,13 @@ docker run -p 8080:8080 --env-file .env examples-copier
 
 ### Getting Started
 
-- **[Configuration Guide](docs/CONFIGURATION-GUIDE.md)** - Complete configuration reference ⭐ NEW
+- **[Configuration Guide](docs/CONFIGURATION-GUIDE.md)** - Complete configuration reference
 - **[Pattern Matching Guide](docs/PATTERN-MATCHING-GUIDE.md)** - Pattern matching with examples
 - **[Local Testing](docs/LOCAL-TESTING.md)** - Test locally before deploying
 - **[Deployment Guide](docs/DEPLOYMENT.md)** - Deploy to production
-- **[Deployment Checklist](docs/DEPLOYMENT-CHECKLIST.md)** - Step-by-step deployment checklist
 
 ### Reference
 
-- **[Pattern Matching Cheat Sheet](docs/PATTERN-MATCHING-CHEATSHEET.md)** - Quick pattern syntax reference
 - **[Architecture](docs/ARCHITECTURE.md)** - System design and components
 - **[Troubleshooting](docs/TROUBLESHOOTING.md)** - Common issues and solutions
 - **[FAQ](docs/FAQ.md)** - Frequently asked questions

examples-copier/cmd/test-webhook/README.md

@@ -414,5 +414,5 @@ jobs:
 - [Webhook Testing Guide](../../docs/WEBHOOK-TESTING.md) - Comprehensive testing guide
 - [Local Testing](../../docs/LOCAL-TESTING.md) - Local development
 - [Test Payloads](../../test-payloads/README.md) - Example payloads
-- [Quick Reference](../../docs/QUICK-REFERENCE.md) - All commands
+- [Quick Reference](../../QUICK-REFERENCE.md) - All commands
 

examples-copier/configs/README.md

@@ -267,6 +267,5 @@ examples-copier/
 
 - [CONFIGURATION-GUIDE.md](../docs/CONFIGURATION-GUIDE.md) - Variable validation and reference
 - [DEPLOYMENT.md](../docs/DEPLOYMENT.md) - Complete deployment guide
-- [DEPLOYMENT-CHECKLIST.md](../docs/DEPLOYMENT-CHECKLIST.md) - Step-by-step checklist
 - [LOCAL-TESTING.md](../docs/LOCAL-TESTING.md) - Local development guide
 

examples-copier/configs/env.yaml.example

@@ -111,10 +111,27 @@ env_variables:
   # DEFAULT BEHAVIORS (OPTIONAL)
   # =============================================================================
   # System-wide defaults that individual config rules can override
-  
+
   DEFAULT_RECURSIVE_COPY: "true"                   # Default recursive copy behavior (default: true)
   DEFAULT_PR_MERGE: "false"                        # Default auto-merge PRs without review (default: false)
   DEFAULT_COMMIT_MESSAGE: "Automated PR with updated examples"  # Default commit message (default: shown)
+
+  # =============================================================================
+  # GITHUB API CONFIGURATION (OPTIONAL)
+  # =============================================================================
+  # Fine-tune GitHub API retry and polling behavior
+
+  # GitHub API Retry Configuration
+  # Controls retry behavior when GitHub API calls fail due to eventual consistency
+  # GITHUB_API_MAX_RETRIES: "3"                    # Number of retry attempts (default: 3)
+  # GITHUB_API_INITIAL_RETRY_DELAY: "500"          # Initial retry delay in milliseconds (default: 500)
+  #                                                 # Uses exponential backoff: 500ms, 1s, 2s, etc.
+
+  # PR Merge Polling Configuration
+  # Controls how long to wait for GitHub to compute PR mergeability
+  # PR_MERGE_POLL_MAX_ATTEMPTS: "20"               # Max polling attempts (default: 20)
+  # PR_MERGE_POLL_INTERVAL: "500"                  # Polling interval in milliseconds (default: 500)
+  #                                                 # Total wait time = attempts × interval (default: ~10 seconds)
 
   # =============================================================================
   # TESTING / DEVELOPMENT OVERRIDES (DO NOT USE IN PRODUCTION)

examples-copier/configs/environment.go

@@ -47,6 +47,14 @@ type Config struct {
 	SlackUsername    string
 	SlackIconEmoji   string
 	SlackEnabled     bool
+
+	// GitHub API retry configuration
+	GitHubAPIMaxRetries        int
+	GitHubAPIInitialRetryDelay int // in milliseconds
+
+	// PR merge polling configuration
+	PRMergePollMaxAttempts int
+	PRMergePollInterval    int // in milliseconds
 }
 
 const (
@@ -78,11 +86,15 @@ const (
 	AuditDatabase        = "AUDIT_DATABASE"
 	AuditCollection      = "AUDIT_COLLECTION"
 	MetricsEnabled       = "METRICS_ENABLED"
-	SlackWebhookURL      = "SLACK_WEBHOOK_URL"
-	SlackChannel         = "SLACK_CHANNEL"
-	SlackUsername        = "SLACK_USERNAME"
-	SlackIconEmoji       = "SLACK_ICON_EMOJI"
-	SlackEnabled         = "SLACK_ENABLED"
+	SlackWebhookURL              = "SLACK_WEBHOOK_URL"
+	SlackChannel                 = "SLACK_CHANNEL"
+	SlackUsername                = "SLACK_USERNAME"
+	SlackIconEmoji               = "SLACK_ICON_EMOJI"
+	SlackEnabled                 = "SLACK_ENABLED"
+	GitHubAPIMaxRetries          = "GITHUB_API_MAX_RETRIES"
+	GitHubAPIInitialRetryDelay   = "GITHUB_API_INITIAL_RETRY_DELAY"
+	PRMergePollMaxAttempts       = "PR_MERGE_POLL_MAX_ATTEMPTS"
+	PRMergePollInterval          = "PR_MERGE_POLL_INTERVAL"
 )
 
 // NewConfig returns a new Config instance with default values
@@ -99,9 +111,13 @@ func NewConfig() *Config {
 		WebhookSecretName:    "projects/1054147886816/secrets/webhook-secret/versions/latest",  // default webhook secret name for GCP Secret Manager
 		CopierLogName:        "copy-copier-log",                                                // default log name for logging to GCP
 		GoogleCloudProjectId: "github-copy-code-examples",                                      // default project ID for logging to GCP
-		DefaultRecursiveCopy: true,                                                             // system-wide default for recursive copying that individual config entries can override.
-		DefaultPRMerge:       false,                                                            // system-wide default for PR merge without review that individual config entries can override.
-		DefaultCommitMessage: "Automated PR with updated examples",                             // default commit message used when per-config commit_message is absent.
+		DefaultRecursiveCopy:       true,                                                             // system-wide default for recursive copying that individual config entries can override.
+		DefaultPRMerge:             false,                                                            // system-wide default for PR merge without review that individual config entries can override.
+		DefaultCommitMessage:       "Automated PR with updated examples",                             // default commit message used when per-config commit_message is absent.
+		GitHubAPIMaxRetries:        3,                                                                // default number of retry attempts for GitHub API calls
+		GitHubAPIInitialRetryDelay: 500,                                                              // default initial retry delay in milliseconds (exponential backoff)
+		PRMergePollMaxAttempts:     20,                                                               // default max attempts to poll PR for mergeability (~10 seconds with 500ms interval)
+		PRMergePollInterval:        500,                                                              // default polling interval in milliseconds
 	}
 }
 
@@ -173,6 +189,14 @@ func LoadEnvironment(envFile string) (*Config, error) {
 	config.SlackIconEmoji = getEnvWithDefault(SlackIconEmoji, ":robot_face:")
 	config.SlackEnabled = getBoolEnvWithDefault(SlackEnabled, config.SlackWebhookURL != "")
 
+	// GitHub API retry configuration
+	config.GitHubAPIMaxRetries = getIntEnvWithDefault(GitHubAPIMaxRetries, config.GitHubAPIMaxRetries)
+	config.GitHubAPIInitialRetryDelay = getIntEnvWithDefault(GitHubAPIInitialRetryDelay, config.GitHubAPIInitialRetryDelay)
+
+	// PR merge polling configuration
+	config.PRMergePollMaxAttempts = getIntEnvWithDefault(PRMergePollMaxAttempts, config.PRMergePollMaxAttempts)
+	config.PRMergePollInterval = getIntEnvWithDefault(PRMergePollInterval, config.PRMergePollInterval)
+
 	// Export resolved values back into environment so downstream os.Getenv sees defaults
 	_ = os.Setenv(Port, config.Port)
 	_ = os.Setenv(RepoName, config.RepoName)
@@ -218,6 +242,19 @@ func getBoolEnvWithDefault(key string, defaultValue bool) bool {
 	return strings.ToLower(value) == "true"
 }
 
+// getIntEnvWithDefault returns the integer environment variable value or default if not set
+func getIntEnvWithDefault(key string, defaultValue int) int {
+	value := os.Getenv(key)
+	if value == "" {
+		return defaultValue
+	}
+	var intValue int
+	if _, err := fmt.Sscanf(value, "%d", &intValue); err != nil {
+		return defaultValue
+	}
+	return intValue
+}
+
 // validateConfig checks if all required configuration values are set
 func validateConfig(config *Config) error {
 	var missingVars []string