Function scanRequiredConfigKeys

cmd/pulumi.go:1298–1345

scanRequiredConfigKeys scans source files in the project directory for config.require(...) / config.require_secret(...) calls and returns the fully-qualified config key names (namespace:key).

(dir, projectName, runtime string)

// config.require(...) / config.require_secret(...) calls and returns the
// fully-qualified config key names (namespace:key).
func scanRequiredConfigKeys(dir, projectName, runtime string) []string {
	// Determine which file extensions to scan based on runtime.
	var globs []string
	switch runtime {
	case "python":
		globs = []string{"*.py"}
	case "nodejs", "node":
		globs = []string{"*.ts", "*.js"}
	case "go":
		globs = []string{"*.go"}
	case "dotnet":
		globs = []string{"*.cs", "*.fs"}
	case "java":
		globs = []string{"*.java"}
	case "yaml":
		// YAML projects declare resources declaratively; no config.require() calls to scan.
		return nil
	default:
		globs = []string{"*.py", "*.ts", "*.js", "*.go", "*.cs", "*.java"}
	}

	seen := map[string]bool{}
	var keys []string

	for _, glob := range globs {
		matches, err := filepath.Glob(filepath.Join(dir, glob))
		if err != nil {
			continue
		}
		for _, fpath := range matches {
			data, err := os.ReadFile(fpath)
			if err != nil {
				continue
			}
			content := string(data)
			fileKeys := extractRequiredKeys(content, projectName)
			for _, k := range fileKeys {
				if !seen[k] {
					seen[k] = true
					keys = append(keys, k)
				}
			}
		}
	}

	sort.Strings(keys)
	return keys
}

// extractRequiredKeys parses source code content and returns fully-qualified
// config keys (namespace:key). It tracks which Config object uses which